A high-strength polymer reinforced safety net and preparation method thereof

Abstract

The present invention discloses a high-strength polymer reinforced safety net and a preparation method thereof, and relates to the technical field of polymer materials, including a high-strength polymer reinforced safety net, wherein the preparation steps of the high-strength polymer reinforced safety net are as follows: pretreatment; adding microcapsules; adding coupling agents; preparing reinforcement materials: preparing carbon fibers and steel wires as reinforcement materials; weaving; reinforcement treatment; heat treatment; surface treatment; quality testing: quality testing of the prepared reinforced safety net to ensure that the product quality meets the design requirements. The present invention is designed with a high-strength polymer reinforced safety net preparation, which significantly improves the safety net's ability to block and withstand falling objects, effectively reduces the risks brought by falling objects from high altitudes, better protects the safety of people and objects below, and can maintain good performance for a long time by virtue of high strength and good durability, reduces replacement frequency, reduces costs, and can better adapt to different construction environments and working conditions.

Description

Technical Field

[0001] The invention relates to the technical field of polymer materials, in particular to a high-strength polymer reinforced safety net and a preparation method thereof. Background Art

[0002] With the development of high-rise buildings, protective nets need to be installed during construction to block falling objects and protect the safety of workers and pedestrians. Traditional protective nets are usually a layer of woven nets with poor overall strength. Some falling objects may break the protective nets, especially for the middle area of ​​the protective net. When facing a large impact force or a heavy object, it may be easily damaged or torn, unable to effectively block the danger, and there are safety hazards. After a long period of exposure to environmental factors such as wind, sun, and rain, it is easy to age and become brittle, and its service life is short. In order to further improve the strength and safety of the protective net, it is necessary to develop high-strength reinforced safety nets. With the continuous advancement of the field of polymer material technology, high-strength polymer reinforced safety nets significantly improve the safety net's ability to block and withstand falling objects, effectively reduce the risks brought by falling objects, and better protect the safety of people and objects below. With high strength and good durability, it can maintain good performance for a long time, reduce replacement frequency, and reduce costs, and can better adapt to different construction environments and working conditions.

[0003] Therefore, it is very necessary for the present application to propose a high-strength polymer reinforced safety net and a preparation method thereof to solve the problems existing in the prior art.

[0004] Patent document CN101410452B discloses a high-strength adhesive polymer gel and adhesive tape. The above patent realizes that the polymer contains a homopolymer of an acrylic monomer having an alkoxyalkyl group, or a copolymer of an acrylic monomer having an alkoxyalkyl group and other acrylic monomers that can copolymerize with the acrylic monomer having an alkoxyalkyl group, and wherein the acrylic monomer having an alkoxyalkyl group accounts for more than 50 weight % of the total amount of polymerizable monomers, but the above patent cannot realize the self-healing and anti-aging capabilities of the reinforced safety net.

[0005] Patent document CN107108954B discloses a high-strength polymer containing carbon nanotubes, and the above patent achieves a BET specific surface area of ​​40m2 / g to 120m2 / g, a volume density of 10 to 60kg / m3, and a carbon nanotube content of 5 to 15% by weight relative to the total weight of the polymer composite material. By simultaneously adjusting and optimizing the specific surface area and the volume density, the content of carbon nanotubes contained in the polymer composite material can be increased without reducing the dispersibility of the carbon nanotubes, thereby providing a high-strength polymer composite material with improved mechanical strength, but the above patent cannot achieve the function of enhancing the self-repairing ability of the reinforced safety net and improving the toughness.

[0006] Patent document CN112850002B discloses a high-strength and wear-resistant polymer roller. The above patent realizes that the efficiency of assembly and disassembly of the roller is improved by setting a limiting fixing mechanism and a fixing mechanism, and maintenance and replacement are more convenient, thereby improving the production efficiency and the working efficiency of the roller. By setting an annular sealing matching block and an avoidance groove, the gap between the roller tube body mounting seat mechanism and the sealing limiting cover mechanism is made into a maze shape, so that it has good dustproof and waterproof effects, and does not affect the rotation between the two, thereby achieving better effects and bringing better usage prospects. However, the above patent cannot achieve the function of enhancing the adhesion performance of the polymer in the reinforced safety net.

[0007] Patent document CN113354947B discloses a high-strength polymer sheet pile and a preparation method thereof. The above patent realizes that fumed silica can effectively reduce the interfacial tension between the rubber and plastic-substrate phases, improve the compatibility between the two phases, and disperse stress in a hierarchical manner when impacted. The strong modified silicone rubber network can absorb a large amount of energy, and a small part of the energy is absorbed by the internal substrate, which can reduce and delay cracks. The present invention improves the toughness and impact resistance of the sheet pile without affecting the piling operation, but the above patent cannot achieve the function of reducing the friction coefficient in the reinforced safety net and enhancing the hydrophobicity.

[0008] In summary, the above patents cannot realize the functions of the reinforced safety net with self-repair ability and anti-aging ability, the function of enhancing the self-repair ability and improving toughness of the reinforced safety net, the function of enhancing the adhesion performance of the polymer in the reinforced safety net, and the function of reducing the friction coefficient in the reinforced safety net and enhancing the hydrophobicity, resulting in the safety net being damaged and torn, unable to effectively block danger, and posing a safety hazard;

[0009] To this end, the present application proposes a high-strength polymer reinforced safety net and a preparation method thereof, which realize the functions of self-repair and anti-aging capabilities of the reinforced safety net, enhance the self-repair ability and improve the toughness of the reinforced safety net, enhance the adhesion performance of the polymer in the reinforced safety net, reduce the friction coefficient in the reinforced safety net, and enhance the hydrophobicity. Summary of the invention

[0010] The purpose of the present invention is to provide a high-strength polymer reinforced safety net and a preparation method thereof, so as to solve the technical problems proposed in the above-mentioned background technology that the functions of the reinforced safety net with self-repair ability and anti-aging ability, the function of enhancing the self-repair ability and improving the toughness of the reinforced safety net, the function of enhancing the adhesion performance of the polymer in the reinforced safety net, and the function of reducing the friction coefficient in the reinforced safety net and enhancing the hydrophobicity cannot be realized, resulting in the safety net being damaged or torn, unable to effectively block danger, and posing a safety hazard.

[0011] To achieve the above object, the present invention provides the following technical solution: a method for preparing a high-strength polymer reinforced safety net, comprising a high-strength polymer reinforced safety net, wherein the preparation steps of the high-strength polymer reinforced safety net are as follows:

[0012] Pretreatment: Select polyester fiber as the main material of the reinforced safety net, and clean and dry the polyester fiber;

[0013] Adding microcapsules: In the spinning process of polyester fibers, urea-formaldehyde resin microcapsules are added to the spinning solution to achieve blending during spinning;

[0014] Add hydrophobic materials: add polydimethylsiloxane and blend with polyester fiber;

[0015] Adding coupling agent: Adding silane coupling agent improves the compatibility of polyester fiber and other materials;

[0016] Prepare reinforcement materials: prepare carbon fiber and steel wire as reinforcement materials;

[0017] Weaving: Weaving high-strength polymer fibers into a mesh structure using a weaving machine;

[0018] Reinforcement: Carbon fibers and steel wires are embedded into the safety net during the weaving process;

[0019] Heat treatment: The woven reinforced safety net is heat treated by heating and cooling;

[0020] Surface treatment: spray anti-corrosion coating on the surface of the reinforced safety net to improve corrosion resistance;

[0021] Quality testing: Carry out quality inspection on the prepared reinforced safety net to ensure that the product quality meets the design requirements.

[0022] Preferably, the preparation of the polyester fiber comprises the following steps:

[0023] Raw material selection: The main raw material of polyester fiber is polyester resin;

[0024] Pretreatment: The polyester resin is heated to above the melting point to melt it into a liquid state;

[0025] Polymerization reaction: react the monomer molecules in the polyester resin to form a high molecular polymer;

[0026] Spinning: The molten polyester material obtained through the polymerization reaction is extruded through a fine-hole spinneret to form continuous filaments;

[0027] Wire drawing: Through stretching, cooling and lubrication, the fibers are gradually strengthened, elongated and shaped.

[0028] Preferably, the preparation of the urea-formaldehyde resin microcapsules comprises the following steps:

[0029] Preparation of urea-formaldehyde prepolymer: adding triethanolamine to formaldehyde, and then adding urea to prepare a solution, heating and stirring to obtain a clear and transparent urea-formaldehyde prepolymer;

[0030] Emulsification dispersion: adding water to the obtained clear and transparent urea-formaldehyde prepolymer, cooling to room temperature, and then adding tetrachloroethylene and surfactant to the urea-formaldehyde prepolymer;

[0031] Polymerization reaction: stirring the reaction at 35°C and 900 r / min for 2 h, and filtering the obtained slurry to obtain urea-formaldehyde resin microcapsules;

[0032] Drying: The obtained urea-formaldehyde resin microcapsules were dried at 55° C. for 9 h to obtain urea-formaldehyde resin microcapsule samples.

[0033] Preferably, the preparation of the hydrophobic material polydimethylsiloxane comprises the following steps:

[0034] Synthesize silane: Add dimethylchlorosilane and hydrogen chloride into a reaction kettle to react and obtain silane raw materials;

[0035] Hydrolysis reaction: hydrolyze the silane raw material with sodium hydroxide in ethanol to obtain hydroxide polysiloxane;

[0036] Acidification reaction: subjecting the hydrolyzed polysiloxane to a sulfuric acid-catalyzed acidification reaction to obtain polysiloxane;

[0037] Dehydration reaction: Water is removed through dehydration reaction to obtain polydimethylsiloxane.

[0038] Preferably, the preparation of the silane coupling agent comprises the following steps:

[0039] Prepare raw materials: prepare methyltrioxysilane, methyl, and cuprate;

[0040] Preparing a mixture: mixing methyltrioxysilane and methyl to prepare a mixture;

[0041] Heating and catalysis: Slowly add the catalyst while the mixture is heated. After adding the catalyst, the mixture needs to be stirred for a while to ensure that the mixture reacts fully;

[0042] Hydrolysis reaction: hydrolyzing the mixture after the reaction to obtain a silane coupling agent solution;

[0043] Post-treatment: The silane coupling agent solution obtained by hydrolysis is concentrated, dried and subjected to post-treatment steps to obtain a silane coupling agent product.

[0044] Preferably, the process of adding urea-formaldehyde resin microcapsules during the spinning of polyester fibers is as follows:

[0045] The urea-formaldehyde resin microcapsules are evenly dispersed in the dispersant to form a stable suspension. In the process of spinning polyester fibers, at the stage of preparing the spinning solution, the suspension containing the urea-formaldehyde resin microcapsules is added to the polyester spinning solution and fully stirred to ensure that the microcapsules are evenly distributed in the spinning solution. The spinning is carried out through the spinning equipment. During the spinning process, as the polyester fibers are formed, the urea-formaldehyde resin microcapsules will be wrapped inside the fibers or attached to the fiber surface. After the spinning is completed, the fibers are cleaned and dried to remove possible residual impurities, so that the structure of the fibers and microcapsules is more stable.

[0046] Preferably, the polymerization reaction is to transesterify dimethyl terephthalate and ethylene glycol, and the resulting diethylene terephthalate oligomer is polycondensed under vacuum conditions to obtain polymethyl terephthalate, and terephthalic acid and ethylene glycol are directly esterified, and then ethylene terephthalate is polycondensed to obtain a polyester melt.

[0047] Preferably, the polymerization reaction of the urea-formaldehyde resin microcapsules is specifically as follows:

[0048] The polymerization reaction of urea-formaldehyde resin microcapsules mainly involves two stages: prepolymer synthesis and microcapsule outer wall synthesis;

[0049] In the prepolymer synthesis stage, urea and formaldehyde react to form monomethylol urea and dimethylol urea through an addition polymerization reaction under alkaline conditions. Next, a condensation polymerization reaction is carried out under acidic conditions to remove small molecules between the prepolymers, and a non-water-soluble polymer with a cross-linked network structure is formed through the condensation polymerization reaction. In the microcapsule outer wall synthesis stage, an emulsion is used as a reaction medium, the reaction temperature is controlled at 55-70°C, and the pH value ranges from 2.5 to 4. Under these conditions, urea-formaldehyde resin particles will further deposit on the water-oil interface, coating the oil phase droplets to form microcapsules.

[0050] Preferably, the principle of the acidification reaction is to break the silicon-oxygen bonds in polydimethylsiloxane through the action of an acid catalyst, thereby introducing carboxyl groups or other acidic groups. In the acidification reaction, the acid catalyst interacts with the polydimethylsiloxane molecules to form an active center, which promotes the breaking of the silicon-oxygen bonds and replaces the original silicon atoms and oxygen atoms with the acidic groups.

[0051] Preferably, the high-strength polymer reinforced safety net comprises 30% carbon fiber and steel wire, 35% polyester fiber, 15% urea-formaldehyde resin microcapsule, 10% silane coupling agent, and 10% polydimethylsiloxane. The high-strength polymer fiber is woven into a mesh structure using a weaving machine, and the carbon fiber and steel wire are embedded into the safety net during the weaving process. The woven reinforced safety net is heat treated by heating and cooling to obtain a high-strength polymer reinforced safety net.

[0052] Compared with the prior art, the present invention has the following beneficial effects:

[0053] 1. The present invention realizes the effective combination of the reinforced structure and the polymer by designing the preparation of the high-strength polymer reinforced safety net, improves the comprehensive performance of the safety net, solves the problem of poor protection stability, effectively copes with greater impact force and complex working conditions, improves the self-repairing ability and anti-aging ability of the reinforced safety net, and prolongs the service life of the reinforced safety net;

[0054] 2. The present invention combines the characteristics of urea-formaldehyde resin microcapsules with the performance of polyester fibers by designing the preparation of urea-formaldehyde resin microcapsules. When the polyester fibers are damaged, the microcapsules rupture and release the repair agent to achieve self-repair, thereby extending the service life of the fibers, solving the problem of aging and fracture of the reinforced safety net, and improving the strength and toughness of the polyester fibers.

[0055] 3. The present invention reduces the friction between polyester fiber and carbon fiber by designing the preparation of polydimethylsiloxane, makes the surface of polyester fiber smooth, solves the problem of easy breakage of reinforced safety net caused by friction between polyester fiber and carbon fiber, and improves the durability of reinforced safety net;

[0056] 4. The present invention achieves better compatibility between polyester fiber, polydimethylsiloxane and urea-formaldehyde resin microcapsules by designing a preparation with silane coupling agent, improves the adhesion between different materials, solves the hidden danger of unstable performance of the reinforced safety net, and improves the integrity and stability of the reinforced safety net. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 This is a schematic diagram of the preparation process of the high-strength polymer reinforced safety net of the present invention;

[0058] Figure 2 This is a schematic diagram of the polyester fiber preparation process of the present invention;

[0059] Figure 3 It is a schematic diagram of the preparation process of urea-formaldehyde resin microcapsules of the present invention;

[0060] Figure 4 This is a schematic diagram of the preparation process of polydimethylsiloxane of the present invention;

[0061] Figure 5 It is a schematic diagram of the preparation process of the silane coupling agent of the present invention. DETAILED DESCRIPTION

[0062] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0063] Example 1

[0064] See also Figure 1 The present invention provides an embodiment: a method for preparing a high-strength polymer reinforced safety net, comprising a high-strength polymer reinforced safety net, wherein the preparation steps of the high-strength polymer reinforced safety net are as follows:

[0065] Pretreatment: Select polyester fiber as the main material of the reinforced safety net, and clean and dry the polyester fiber;

[0066] Adding microcapsules: In the spinning process of polyester fibers, urea-formaldehyde resin microcapsules are added to the spinning solution to achieve blending during spinning;

[0067] Add hydrophobic materials: add polydimethylsiloxane and blend with polyester fiber;

[0068] Adding coupling agent: Adding silane coupling agent improves the compatibility of polyester fiber and other materials;

[0069] Prepare reinforcement materials: prepare carbon fiber and steel wire as reinforcement materials;

[0070] Weaving: Weaving high-strength polymer fibers into a mesh structure using a weaving machine;

[0071] Reinforcement: Carbon fibers and steel wires are embedded into the safety net during the weaving process;

[0072] Heat treatment: The woven reinforced safety net is heat treated by heating and cooling;

[0073] Surface treatment: spray anti-corrosion coating on the surface of the reinforced safety net to improve corrosion resistance;

[0074] Quality testing: Conduct quality testing on the prepared reinforced safety net to ensure that the product quality meets the design requirements;

[0075] Furthermore, polyester fiber is selected as the main material of the reinforced safety net, the polyester fiber is cleaned and dried, urea-formaldehyde resin microcapsules are added to the spinning solution during the spinning process of the polyester fiber, and blending is achieved during the spinning, polydimethylsiloxane is added to blend with the polyester fiber, and a silane coupling agent is added to improve the compatibility of the polyester fiber and other materials, and carbon fiber and steel wire are prepared as reinforcement materials;

[0076] Use a weaving machine to weave high-strength polymer fibers into a mesh structure. During the weaving process, carbon fibers and steel wires are embedded into the safety net to increase the strength and stability of the net. The woven reinforced safety net is heat treated by heating and cooling. The heating and cooling process allows the fiber materials to be more closely combined to improve the strength and durability of the net. An anti-corrosion coating is sprayed on the surface of the reinforced safety net to improve corrosion resistance. The prepared reinforced safety net is quality inspected to ensure that the product quality meets the design requirements.

[0077] Example 2

[0078] See also Figure 2 The present invention provides an embodiment: a method for preparing a high-strength polymer reinforced safety net, wherein the preparation of the polyester fiber comprises the following steps:

[0079] Raw material selection: The main raw material of polyester fiber is polyester resin;

[0080] Pretreatment: The polyester resin is heated to above the melting point to melt it into a liquid state;

[0081] Polymerization reaction: react the monomer molecules in the polyester resin to form a high molecular polymer;

[0082] Spinning: The molten polyester material obtained through the polymerization reaction is extruded through a fine-hole spinneret to form continuous filaments;

[0083] Wire drawing: Through stretching, cooling and lubrication, the fiber is gradually strengthened, elongated and shaped;

[0084] Furthermore, the main raw material of polyester fiber is polyester resin, which is usually derived from fossil fuels such as petroleum and natural gas. The polyester resin needs to be pre-treated, and the treatment methods include melting and curing. The polyester resin is heated to above the melting point to melt the polyester resin into a liquid state, and then the monomer molecules in the polyester resin are reacted through a polymerization reaction to form a high molecular polymer;

[0085] Dimethyl terephthalate and ethylene glycol are transesterified to generate diethylene terephthalate oligomers, which are polycondensed under vacuum conditions to obtain poly(dimethyl terephthalate). The molten polyester material obtained by the polymerization reaction is extruded through a fine-pore spinner to form continuous filaments. The fibers are gradually strengthened, elongated and shaped through stretching, cooling and lubrication to form polyester fibers that meet the requirements.

[0086] Example 3

[0087] See also Figure 3 The present invention provides an embodiment: a method for preparing a high-strength polymer reinforced safety net, wherein the preparation of the urea-formaldehyde resin microcapsules comprises the following steps:

[0088] Preparation of urea-formaldehyde prepolymer: adding triethanolamine to formaldehyde, and then adding urea to prepare a solution, heating and stirring to obtain a clear and transparent urea-formaldehyde prepolymer;

[0089] Emulsification dispersion: adding water to the obtained clear and transparent urea-formaldehyde prepolymer, cooling to room temperature, and then adding tetrachloroethylene and surfactant to the urea-formaldehyde prepolymer;

[0090] Polymerization reaction: stirring the reaction at 35°C and 900 r / min for 2 h, and filtering the obtained slurry to obtain urea-formaldehyde resin microcapsules;

[0091] Drying: drying the obtained urea-formaldehyde resin microcapsules at 55° C. for 9 h to obtain urea-formaldehyde resin microcapsule samples;

[0092] Further, triethanolamine is added to formaldehyde, and then urea is added to form a solution, which is heated and stirred to obtain a clear and transparent urea-formaldehyde prepolymer. Water is added to the obtained clear and transparent urea-formaldehyde prepolymer, and the solution is cooled to room temperature. Then, tetrachloroethylene and a surfactant are added to the urea-formaldehyde prepolymer. The surfactant molecules have hydrophilic groups and hydrophobic groups, which are oriented at the oil-water interface to reduce the interfacial tension, so that the oil phase can be dispersed in the aqueous phase in the form of tiny droplets to form an emulsion. The emulsified dispersion allows the urea-formaldehyde resin prepolymer to contact the encapsulated object more evenly, which is conducive to the formation of uniform microcapsules. The reaction is then stirred at 35°C and a stirring speed of 900 r / min for 2 hours, and the obtained slurry is filtered to obtain urea-formaldehyde resin microcapsules. The obtained urea-formaldehyde resin microcapsules are dried at 55°C for 9 hours to obtain urea-formaldehyde resin microcapsule samples.

[0093] Example 4

[0094] See also Figure 4 The present invention provides an embodiment: a method for preparing a high-strength polymer reinforced safety net, wherein the preparation of the hydrophobic material polydimethylsiloxane comprises the following steps:

[0095] Synthesize silane: Add dimethylchlorosilane and hydrogen chloride into a reaction kettle to react and obtain silane raw materials;

[0096] Hydrolysis reaction: hydrolyze the silane raw material with sodium hydroxide in ethanol to obtain hydroxide polysiloxane;

[0097] Acidification reaction: subjecting the hydrolyzed polysiloxane to a sulfuric acid-catalyzed acidification reaction to obtain polysiloxane;

[0098] Dehydration reaction: Water is removed through dehydration reaction to obtain polydimethylsiloxane;

[0099] Further, dimethylchlorosilane and hydrogen chloride are added to a reaction kettle for reaction to obtain a silane raw material. After the silane raw material is mixed with sodium hydroxide in an ethanol solution, the sodium hydroxide is ionized in the ethanol medium to produce hydroxide ions. The silicon-hydrogen bonds are broken under the action of the hydroxide ions and are combined with water molecules to undergo a hydrolysis reaction. As the reaction proceeds, silanol structures are continuously formed, and condensation reactions further occur between the silanol structures to gradually form long-chain hydroxide polysiloxanes.

[0100] The hydroxylated polysiloxane obtained by hydrolysis is mixed with an appropriate amount of sulfuric acid to form a reaction system. Under the catalytic action of sulfuric acid, the hydroxyl groups in the hydroxylated polysiloxane react with sulfuric acid to generate corresponding sulfonic acid groups. After the reaction is completed, the product polysiloxane is separated from the reaction byproducts and purified. Finally, water is removed by dehydration reaction to obtain polydimethylsiloxane.

[0101] Polydimethylsiloxane has low surface energy and good flexibility. During the blending process with polyester fibers, polydimethylsiloxane molecules can be evenly dispersed around the polyester fibers and interact with the polyester fibers through physical effects. This blending can improve the surface hydrophobicity and softness of the polyester fibers, while also giving the polyester fibers the characteristics of polydimethylsiloxane.

[0102] Example 5

[0103] See also Figure 5 The present invention provides an embodiment: a method for preparing a high-strength polymer reinforced safety net, wherein the preparation of the silane coupling agent comprises the following steps:

[0104] Prepare raw materials: prepare methyltrioxysilane, methyl, and cuprate;

[0105] Preparing a mixture: mixing methyltrioxysilane and methyl to prepare a mixture;

[0106] Heating and catalysis: Slowly add the catalyst while the mixture is heated. After adding the catalyst, the mixture needs to be stirred for a while to ensure that the mixture reacts fully;

[0107] Hydrolysis reaction: hydrolyzing the mixture after the reaction to obtain a silane coupling agent solution;

[0108] Post-treatment: The silane coupling agent solution obtained by hydrolysis is concentrated, dried and subjected to post-treatment steps to obtain a silane coupling agent product;

[0109] Further, methyltrioxysilane, methyl, and cuprate are prepared, methyltrioxysilane and methyl are mixed to prepare a mixture, a catalyst is slowly added to the mixture while heating it, and after the catalyst is added, the mixture needs to be stirred for a period of time to ensure that the mixture is fully reacted, and in the hydrolysis reaction, the alkoxy groups in the mixture react with water to form silanol groups, and the silanol groups have high reactivity and further react to obtain a silane coupling agent solution, and the silane coupling agent solution obtained by hydrolysis is concentrated, dried, and other post-treatment steps to obtain a silane coupling agent product;

[0110] One end of the silane coupling agent molecule has a functional group that can react with inorganic materials, and the other end has a group that can combine well with organic materials. When the silane coupling agent is blended with polyester fiber, it can be firmly bonded to the surface of the polyester fiber by chemically reacting with the active groups on the surface of the polyester fiber, thereby improving the interfacial bonding performance between the polyester fiber and other organic or inorganic materials, and enhancing compatibility and adhesion. At the same time, the presence of the silane coupling agent also affects the surface properties of the polyester fiber, such as surface energy and wettability, and further affects the interaction between the polyester fiber and other materials. Put the polyester fiber into the silane coupling agent solution and fully immerse it for a period of time so that the silane coupling agent can be adsorbed to the surface of the polyester fiber to achieve good blending.

[0111] Example 6

[0112] An embodiment provided by the present invention is a method for preparing a high-strength polymer reinforced safety net, wherein the process of adding urea-formaldehyde resin microcapsules during the spinning of polyester fibers is as follows:

[0113] The urea-formaldehyde resin microcapsules are uniformly dispersed in a dispersant to form a stable suspension. In the process of spinning polyester fibers, at the stage of preparing the spinning solution, the suspension containing the urea-formaldehyde resin microcapsules is added to the polyester spinning solution and fully stirred to ensure that the microcapsules are evenly distributed in the spinning solution. The spinning is performed through a spinning device. During the spinning process, as the polyester fibers are formed, the urea-formaldehyde resin microcapsules are wrapped inside the fibers or attached to the fiber surface. After the spinning is completed, the fibers are cleaned and dried to remove possible residual impurities, so that the structure of the fibers and microcapsules is more stable.

[0114] Further, urea-formaldehyde resin microcapsules are prepared, raw materials and equipment required for polyester fiber spinning are prepared, urea-formaldehyde resin microcapsules are uniformly dispersed in a dispersant to form a stable suspension, polyester chips required for polyester fiber spinning are prepared, and the polyester chips are heated and melted in a solvent to prepare a polyester spinning solution;

[0115] A suspension containing urea-formaldehyde resin microcapsules is added to the polyester spinning solution and fully stirred to ensure that the microcapsules are evenly distributed in the spinning solution. Spinning is performed through a spinning device. During the spinning process, as the polyester fiber is formed, the urea-formaldehyde resin microcapsules will be wrapped inside the fiber or attached to the fiber surface. After the spinning is completed, the fiber is cleaned and dried to remove possible residual impurities, so that the structure of the fiber and the microcapsule is more stable.

[0116] Example 7

[0117] An embodiment provided by the present invention is a method for preparing a high-strength polymer reinforced safety net, wherein the process of adding urea-formaldehyde resin microcapsules to the carbon fiber is as follows:

[0118] Preparation of urea-formaldehyde resin microcapsules: mixing urea-formaldehyde resin prepolymer with a curing agent, a catalyst, etc., and forming microcapsules by emulsification, spray drying, interfacial polymerization, etc.;

[0119] Preparation of carbon fiber: Carbon fiber is made from polyacrylonitrile fiber;

[0120] Carbon fiber pretreatment: cleaning, drying and surface activation of carbon fiber;

[0121] Combining microcapsules with carbon fibers: Disperse urea-formaldehyde resin microcapsules in a suitable solvent to form a stable suspension, and then use a spraying method to evenly coat the suspension on the surface of the carbon fibers. After the solvent evaporates, the microcapsules are firmly attached to the carbon fibers.

[0122] Subsequent treatment: curing the combined carbon fiber and urea-formaldehyde resin microcapsules;

[0123] Furthermore, the raw material for preparing carbon fiber is usually polyacrylonitrile fiber, which is a synthetic fiber with a high carbon content and good fiber morphology. The polyacrylonitrile fiber is pre-oxidized and stretched to change the fiber structure and improve thermal stability. During the stretching process, the fiber is stretched into a slender fiber bundle. The pre-treated fiber bundle is placed in a carbonization furnace for carbonization treatment in an inert environment. The carbonization treatment removes a large amount of non-carbon elements such as nitrogen, hydrogen, and oxygen, thereby changing the structure of the original polyacrylonitrile fiber. A carbon fiber precursor with a carbon content of 95% can be obtained. The carbon fiber precursor is placed in a sealing device and pressure is continuously applied to allow the crystalline carbon in the fiber to transform into graphite crystals, and the carbon atoms are rearranged to form the basic structure of the carbon fiber.

[0124] Urea-formaldehyde resin microcapsules are dispersed in a suitable solvent to form a stable suspension, and then the suspension is evenly coated on the surface of the carbon fiber using a spraying method. After the solvent evaporates, the microcapsules are firmly attached to the carbon fiber. The combined carbon fiber and urea-formaldehyde resin microcapsules are cured to ensure a firm bond between the microcapsules and the carbon fiber.

[0125] Example 8

[0126] An embodiment provided by the present invention is a method for preparing a high-strength polymer reinforced safety net, wherein the steps for preparing the high-strength polymer reinforced safety net are as follows:

[0127] Pretreatment: Select polypropylene fiber as the main material of the reinforced safety net, and clean and dry the polypropylene fiber;

[0128] Adding microcapsules: During the spinning process of polypropylene fibers, urea-formaldehyde resin microcapsules are added to the spinning solution to achieve blending during spinning;

[0129] Add hydrophobic materials: add polydimethylsiloxane and blend with polypropylene fiber;

[0130] Adding coupling agent: Adding silane coupling agent improves the compatibility of polypropylene fiber and other materials;

[0131] Prepare reinforcement materials: prepare carbon fiber and steel wire as reinforcement materials;

[0132] Weaving: Weaving high-strength polymer fibers into a mesh structure using a weaving machine;

[0133] Reinforcement: Carbon fibers and steel wires are embedded into the safety net during the weaving process;

[0134] Heat treatment: The woven reinforced safety net is heat treated by heating and cooling;

[0135] Surface treatment: spray anti-corrosion coating on the surface of the reinforced safety net to improve corrosion resistance;

[0136] Quality testing: Conduct quality testing on the prepared reinforced safety net to ensure that the product quality meets the design requirements;

[0137] Furthermore, polypropylene fiber is selected as the main material of the reinforced safety net, the polypropylene fiber is cleaned and dried, urea-formaldehyde resin microcapsules are added to the spinning solution during the spinning process of the polypropylene fiber, and blending is achieved during spinning, polydimethylsiloxane is added to blend with the polypropylene fiber, and a silane coupling agent is added to improve the compatibility of the polypropylene fiber and other materials, and carbon fiber and steel wire are prepared as reinforcement materials;

[0138] Use a weaving machine to weave polymer fibers into a mesh structure. During the weaving process, carbon fibers and steel wires are embedded into the safety net to increase the strength and stability of the net. The woven reinforced safety net is heat treated by heating and cooling. Through the heating and cooling process, the fiber materials are more closely combined together to improve the strength and durability of the net. An anti-corrosion coating is sprayed on the surface of the reinforced safety net to improve corrosion resistance. The prepared reinforced safety net is quality inspected to ensure that the product quality meets the design requirements.

[0139] Example 9

[0140] An embodiment provided by the present invention is a method for preparing a high-strength polymer reinforced safety net, comprising a high-strength polymer reinforced safety net, wherein the preparation steps of the high-strength polymer reinforced safety net are as follows:

[0141] Pretreatment: Select polyester fiber as the main material of the reinforced safety net, and clean and dry the polyester fiber;

[0142] Add hydrophobic materials: add polydimethylsiloxane and blend with polyester fiber;

[0143] Adding coupling agent: Adding silane coupling agent improves the compatibility of polyester fiber and other materials;

[0144] Prepare reinforcement materials: prepare carbon fiber and steel wire as reinforcement materials;

[0145] Weaving: Weaving high-strength polymer fibers into a mesh structure using a weaving machine;

[0146] Reinforcement: Carbon fibers and steel wires are embedded into the safety net during the weaving process;

[0147] Heat treatment: The woven reinforced safety net is heat treated by heating and cooling;

[0148] Surface treatment: spray anti-corrosion coating on the surface of the reinforced safety net to improve corrosion resistance;

[0149] Quality testing: Conduct quality testing on the prepared reinforced safety net to ensure that the product quality meets the design requirements;

[0150] Further, polyester fiber is selected as the main material of the reinforced safety net, the polyester fiber is cleaned and dried, polydimethylsiloxane is added to blend with the polyester fiber, and a silane coupling agent is added to improve the compatibility of the polyester fiber and other materials, and carbon fiber and steel wire are prepared as reinforcement materials;

[0151] Use a weaving machine to weave high-strength polymer fibers into a mesh structure. During the weaving process, carbon fibers and steel wires are embedded into the safety net to increase the strength and stability of the net. The woven reinforced safety net is heat treated by heating and cooling. The heating and cooling process allows the fiber materials to be more closely combined to improve the strength and durability of the net. An anti-corrosion coating is sprayed on the surface of the reinforced safety net to improve corrosion resistance. The prepared reinforced safety net is quality inspected to ensure that the product quality meets the design requirements.

[0152] Example 10

[0153] An embodiment provided by the present invention is a method for preparing a high-strength polymer reinforced safety net, comprising a high-strength polymer reinforced safety net, wherein the preparation steps of the high-strength polymer reinforced safety net are as follows:

[0154] Pretreatment: Select polyester fiber as the main material of the reinforced safety net, and clean and dry the polyester fiber;

[0155] Adding microcapsules: In the spinning process of polyester fibers, urea-formaldehyde resin microcapsules are added to the spinning solution to achieve blending during spinning;

[0156] Adding coupling agent: Adding silane coupling agent improves the compatibility of polyester fiber and other materials;

[0157] Prepare reinforcement materials: prepare carbon fiber and steel wire as reinforcement materials;

[0158] Weaving: Weaving high-strength polymer fibers into a mesh structure using a weaving machine;

[0159] Reinforcement: Carbon fibers and steel wires are embedded into the safety net during the weaving process;

[0160] Heat treatment: The woven reinforced safety net is heat treated by heating and cooling;

[0161] Surface treatment: spray anti-corrosion coating on the surface of the reinforced safety net to improve corrosion resistance;

[0162] Quality testing: Conduct quality testing on the prepared reinforced safety net to ensure that the product quality meets the design requirements;

[0163] Furthermore, polyester fiber is selected as the main material of the reinforced safety net, the polyester fiber is cleaned and dried, urea-formaldehyde resin microcapsules are added to the spinning solution during the spinning process of the polyester fiber, and blending is achieved during spinning, and a silane coupling agent is added to improve the compatibility of the polyester fiber and other materials, and carbon fiber and steel wire are prepared as reinforcement materials;

[0164] Use a weaving machine to weave high-strength polymer fibers into a mesh structure. During the weaving process, carbon fibers and steel wires are embedded into the safety net to increase the strength and stability of the net. The woven reinforced safety net is heat treated by heating and cooling. The heating and cooling process allows the fiber materials to be more closely combined to improve the strength and durability of the net. An anti-corrosion coating is sprayed on the surface of the reinforced safety net to improve corrosion resistance. The prepared reinforced safety net is quality inspected to ensure that the product quality meets the design requirements.

[0165] Embodiment 11

[0166] An embodiment provided by the present invention is a method for preparing a high-strength polymer reinforced safety net, comprising a high-strength polymer reinforced safety net, wherein the preparation steps of the high-strength polymer reinforced safety net are as follows:

[0167] Pretreatment: Select polyester fiber as the main material of the reinforced safety net, and clean and dry the polyester fiber;

[0168] Adding microcapsules: In the spinning process of polyester fibers, urea-formaldehyde resin microcapsules are added to the spinning solution to achieve blending during spinning;

[0169] Add hydrophobic materials: add polydimethylsiloxane and blend with polyester fiber;

[0170] Prepare reinforcement materials: prepare carbon fiber and steel wire as reinforcement materials;

[0171] Weaving: Weaving high-strength polymer fibers into a mesh structure using a weaving machine;

[0172] Reinforcement: Carbon fibers and steel wires are embedded into the safety net during the weaving process;

[0173] Heat treatment: The woven reinforced safety net is heat treated by heating and cooling;

[0174] Surface treatment: spray anti-corrosion coating on the surface of the reinforced safety net to improve corrosion resistance;

[0175] Quality testing: Conduct quality testing on the prepared reinforced safety net to ensure that the product quality meets the design requirements;

[0176] Further, polyester fiber is selected as the main material of the reinforced safety net, the polyester fiber is cleaned and dried, urea-formaldehyde resin microcapsules are added to the spinning solution during the spinning process of the polyester fiber, and blending is achieved during the spinning, polydimethylsiloxane is added to blend with the polyester fiber, and carbon fiber and steel wire are prepared as reinforcement materials;

[0177] Use a weaving machine to weave high-strength polymer fibers into a mesh structure. During the weaving process, carbon fibers and steel wires are embedded into the safety net to increase the strength and stability of the net. The woven reinforced safety net is heat treated by heating and cooling. The heating and cooling process allows the fiber materials to be more closely combined to improve the strength and durability of the net. An anti-corrosion coating is sprayed on the surface of the reinforced safety net to improve corrosion resistance. The prepared reinforced safety net is quality inspected to ensure that the product quality meets the design requirements.

[0178] Performance Testing

[0179] Test 1: Impact resistance test: Select reinforced safety net samples with a size of 5m×7m of Example 1, Example 8, and Example 11 for testing, and use a steel ball with a smooth surface, a diameter of 500mm, and a mass of 100kg as the test weight. Hang the test sample firmly on the test frame and suspend it firmly by ropes at its four corners. Lift the test hanger and lift the test weight to a specified height so that the distance between its bottom surface and the installation plane of the sample net plus the initial sag of the sample net is equal to the test height. Release the test weight and let it fall freely into the test net. After the test is completed, observe the condition of the sample net and record any damage or deformation.

[0180] Test 2: Repair ability test: Select the reinforced safety net samples of Example 1, Example 8, Example 9, Example 10, and Example 11 for testing, create damage on the surface of the sample, continuously observe the progress of the repair of the damaged part for a certain period of time, and observe the microscopic morphology of the repaired part through a microscope to see whether it is well filled.

[0181] Test 3: Hydrophobic performance test: Select the reinforced safety net samples of Example 1, Example 8, Example 9, Example 10, and Example 11 for testing, ensure that their surfaces are clean and flat, place the samples stably on a horizontal test bench, use a micro-syringe to drop a drop of water at a specific position on the sample surface, observe the shape of the water drop on the safety net and whether it spreads, use a contact angle meter to measure the contact angle formed by the water drop and the surface of the safety net, record the test data in detail, and analyze and evaluate the data to determine the hydrophobic performance level of the safety net.

[0182] Table 1 Test results of performance test 1

[0183] Example Included Materials Test Results Example 1 Polyester fiber, urea-formaldehyde resin microcapsules, polydimethylsiloxane, silane coupling agent No change Example 8 Polypropylene fiber, urea-formaldehyde resin microcapsule, polydimethylsiloxane, silane coupling agent Deformation Embodiment 11 Polyester fiber, urea-formaldehyde resin microcapsule, polydimethylsiloxane No change

[0184] Table 2 Test results of performance test 2

[0185] Example Included Materials Test Results Example 1 Polyester fiber, urea-formaldehyde resin microcapsules, polydimethylsiloxane, silane coupling agent Well restored Example 8 Polypropylene fiber, urea-formaldehyde resin microcapsule, polydimethylsiloxane, silane coupling agent Well restored Example 9 Polyester fiber, polydimethylsiloxane, silane coupling agent No fix Example 10 Polyester fiber, urea-formaldehyde resin microcapsules, silane coupling agent Well restored Embodiment 11 Polyester fiber, urea-formaldehyde resin microcapsule, polydimethylsiloxane Well restored

[0186] Table 3 Test results of performance test 3

[0187] Example Included Materials Test Results Example 1 Polyester fiber, urea-formaldehyde resin microcapsules, polydimethylsiloxane, silane coupling agent ＞90° Example 8 Polypropylene fiber, urea-formaldehyde resin microcapsule, polydimethylsiloxane, silane coupling agent ＞90° Example 9 Polyester fiber, polydimethylsiloxane, silane coupling agent ＞90° Example 10 Polyester fiber, urea-formaldehyde resin microcapsules, silane coupling agent ＜90° Embodiment 11 Polyester fiber, urea-formaldehyde resin microcapsule, polydimethylsiloxane ＞90°

[0188] Working principle: First, polyester fiber is selected as the main material of the reinforced safety net. The main raw material of polyester fiber is polyester resin, which comes from fossil fuels such as petroleum and natural gas. The polyester resin needs to be pre-treated, and the treatment methods include melting and solidification. The polyester resin is heated to above the melting point by melting to melt the polyester resin into a liquid state, and then the monomer molecules in the polyester resin are reacted through polymerization to form a high molecular polymer. The molten polyester material obtained by the polymerization reaction is extruded through a fine-pore spinner to form continuous filaments. Through stretching, cooling and lubrication, the fiber is gradually strengthened, extended and shaped to form polyester fibers that meet the requirements. The polyester fiber is cleaned and dried;

[0189] Then, the urea-formaldehyde resin microcapsules are uniformly dispersed in the dispersant to form a stable suspension. In the process of spinning polyester fibers, in the stage of preparing the spinning solution, the suspension containing the urea-formaldehyde resin microcapsules is added to the polyester spinning solution and fully stirred to ensure that the microcapsules are evenly distributed in the spinning solution. The spinning is carried out through a spinning device. During the spinning process, as the polyester fibers are formed, the urea-formaldehyde resin microcapsules will be wrapped inside the fibers or attached to the fiber surfaces. The polydimethylsiloxane and the polyester fibers are placed in a suitable container, and the polydimethylsiloxane and the polyester fibers are fully mixed by stirring and mechanical blending. A silane coupling agent is then added to improve the compatibility of the polyester fibers with other materials. Carbon fibers and steel wires are prepared as reinforcement materials.

[0190] Finally, a weaving machine is used to weave high-strength polymer fibers into a mesh structure. During the weaving process, carbon fibers and steel wires are embedded into the safety net to increase the strength and stability of the net. The woven reinforced safety net is heat treated by heating and cooling. The heating and cooling process allows the fiber materials to be more closely combined together, thereby improving the strength and durability of the net. An anti-corrosion coating is sprayed on the surface of the reinforced safety net to improve its corrosion resistance. The prepared reinforced safety net is quality inspected to ensure that the product quality meets the design requirements.

[0191] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A method for preparing a high-strength polymer reinforced safety net, characterized in that: The invention comprises a high-strength polymer reinforced safety net, and the preparation steps of the high-strength polymer reinforced safety net are as follows: Pretreatment: Select polyester fiber as the main material of the reinforced safety net, and clean and dry the polyester fiber; Adding microcapsules: In the spinning process of polyester fibers, urea-formaldehyde resin microcapsules are added to the spinning solution to achieve blending during spinning; Add hydrophobic materials: add polydimethylsiloxane and blend with polyester fiber; Adding coupling agent: Adding silane coupling agent improves the compatibility between polyester fiber, polydimethylsiloxane and urea-formaldehyde resin microcapsules; Prepare reinforcement materials: prepare carbon fiber and steel wire as reinforcement materials; Weaving: Weaving high-strength polymer fibers into a mesh structure using a weaving machine; Reinforcement: Carbon fibers and steel wires are embedded into the safety net during the weaving process; Heat treatment: The woven reinforced safety net is heat treated by heating and cooling; Surface treatment: spray anti-corrosion coating on the surface of the reinforced safety net to improve corrosion resistance; Quality testing: Conduct quality testing on the prepared reinforced safety net to ensure that the product quality meets the design requirements; The preparation of the urea-formaldehyde resin microcapsules comprises the following steps: Preparation of urea-formaldehyde prepolymer: adding triethanolamine to formaldehyde, and then adding urea to prepare a solution, heating and stirring to obtain a clear and transparent urea-formaldehyde prepolymer; Emulsification dispersion: adding water to the obtained clear and transparent urea-formaldehyde prepolymer, cooling to room temperature, and then adding tetrachloroethylene and surfactant to the urea-formaldehyde prepolymer; Polymerization reaction: stirring the reaction at 35°C and 900 r / min for 2 h, and filtering the obtained slurry to obtain urea-formaldehyde resin microcapsules; Drying: drying the obtained urea-formaldehyde resin microcapsules at 55° C. for 9 h to obtain urea-formaldehyde resin microcapsule samples; The polymerization reaction of urea-formaldehyde resin microcapsules involves two stages: prepolymer synthesis and microcapsule outer wall synthesis; In the prepolymer synthesis stage, urea and formaldehyde react to form monomethylol urea and dimethylol urea through an addition polymerization reaction under alkaline conditions. Next, a condensation polymerization reaction is carried out under acidic conditions to remove small molecules between the prepolymers, and a non-water-soluble polymer with a cross-linked network structure is formed through the condensation polymerization reaction. In the microcapsule outer wall synthesis stage, an emulsion is used as a reaction medium, the reaction temperature is controlled at 55-70°C, and the pH value ranges from 2.5 to 4. Under these conditions, urea-formaldehyde resin particles will further deposit on the water-oil interface, coating the oil phase droplets to form microcapsules.

2. The method for preparing a high-strength polymer reinforced safety net according to claim 1, characterized in that: The preparation of the polyester fiber comprises the following steps: Raw material selection: The main raw material of polyester fiber is polyester resin; Pretreatment: The polyester resin is heated to above the melting point to melt it into a liquid state; Polymerization reaction: react the monomer molecules in the polyester resin to form a high molecular polymer; Spinning: The molten polyester material obtained through the polymerization reaction is extruded through a fine-hole spinneret to form continuous filaments; Wire drawing: Through stretching, cooling and lubrication, the fibers are gradually strengthened, elongated and shaped.

3. The method for preparing a high-strength polymer reinforced safety net according to claim 1, characterized in that: The preparation of the hydrophobic material polydimethylsiloxane comprises the following steps: Synthesize silane: Add dimethylchlorosilane and hydrogen chloride into a reaction kettle to react and obtain silane raw materials; Hydrolysis reaction: hydrolyze the silane raw material with sodium hydroxide in ethanol to obtain hydroxide polysiloxane; Acidification reaction: subjecting the hydrolyzed polysiloxane to a sulfuric acid-catalyzed acidification reaction to obtain polysiloxane; Dehydration reaction: Water is removed through dehydration reaction to obtain polydimethylsiloxane.

4. The method for preparing a high-strength polymer reinforced safety net according to claim 1, characterized in that: The preparation of the silane coupling agent comprises the following steps: Prepare raw materials: prepare methyltrioxysilane, methyl, and cuprate; Preparing a mixture: mixing methyltrioxysilane and methyl to prepare a mixture; Heating and catalysis: Slowly add the catalyst while the mixture is heated. After adding the catalyst, the mixture needs to be stirred for a while to ensure that the mixture reacts fully; Hydrolysis reaction: hydrolyzing the mixture after the reaction to obtain a silane coupling agent solution; Post-treatment: The silane coupling agent solution obtained by hydrolysis is concentrated, dried and subjected to post-treatment steps to obtain a silane coupling agent product.

5. The method for preparing a high-strength polymer reinforced safety net according to claim 1, characterized in that: The process of adding urea-formaldehyde resin microcapsules in the preparation of the polyester fiber spinning is as follows: The urea-formaldehyde resin microcapsules are evenly dispersed in the dispersant to form a stable suspension. In the process of spinning polyester fibers, at the stage of preparing the spinning solution, the suspension containing the urea-formaldehyde resin microcapsules is added to the polyester spinning solution and fully stirred to ensure that the microcapsules are evenly distributed in the spinning solution. The spinning is carried out through the spinning equipment. During the spinning process, as the polyester fibers are formed, the urea-formaldehyde resin microcapsules will be wrapped inside the fibers or attached to the fiber surface. After the spinning is completed, the fibers are cleaned and dried to remove possible residual impurities, so that the structure of the fibers and microcapsules is more stable.

6. The method for preparing a high-strength polymer reinforced safety net according to claim 2, characterized in that: The polymerization reaction is to transesterify dimethyl terephthalate and ethylene glycol, and the generated diethylene terephthalate oligomer is polycondensed under vacuum conditions to obtain polymethyl terephthalate, and terephthalic acid and ethylene glycol are directly esterified, and then ethylene terephthalate is polycondensed to obtain a polyester melt.

7. The method for preparing a high-strength polymer reinforced safety net according to claim 3, characterized in that: The principle of the acidification reaction is to break the silicon-oxygen bonds in polydimethylsiloxane through the action of an acid catalyst, thereby introducing carboxyl groups or other acidic groups. In the acidification reaction, the acid catalyst interacts with the polydimethylsiloxane molecules to form an active center, which promotes the breaking of the silicon-oxygen bonds and replaces the original silicon atoms and oxygen atoms with the acidic groups.

8. A high-strength polymer reinforced safety net, suitable for the preparation method of a high-strength polymer reinforced safety net according to any one of claims 1 to 7, characterized in that: The high-strength polymer reinforced safety net includes 30% carbon fiber and steel wire, 35% polyester fiber, 15% urea-formaldehyde resin microcapsule, 10% silane coupling agent, and 10% polydimethylsiloxane. The high-strength polymer fiber is woven into a mesh structure using a weaving machine. The carbon fiber and steel wire are embedded into the safety net during the weaving process. The woven reinforced safety net is heat-treated by heating and cooling to obtain the high-strength polymer reinforced safety net.

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