188results about How to "Enhance the interface force" patented technology

The invention relates to a high-tenacity, halogen-free and flame-retardant fiber glass reinforced polycarbonate composition, which comprises the following components by weight portion: 300 to 800 portions of polycarbonate, 100 to 400 portions of fiber glass, 30 to 150 portions of toughening compatilizer, 10 to 100 portions of organosilicon flame retardant, 10 to 150 portions of nano silicic acid inorganic substances, 1 to 10 portions of antioxidant A, 1 to 15 portions of antioxidant B, 1 to 15 portions of coupling agent, and 0 to 20 portions of other assistants. Compared with the prior art, the composition has the characteristics of good processing property, high impact strength, environmental protection due to free halogen and flame retardance, and the like.

The invention discloses a phase change microcapsule and a preparation method thereof. The phase change microcapsule comprises an outer shell and a capsule core wrapped in the outer shell, wherein thecapsule wall of the outer shell contains the polymer material of a repeating monomer unit formed from the following monomer: (A) 40-80 wt% of more than one selected from C1-C24 alkyl acrylate or C1-C24 alkyl methacrylate, and (B) 20-60 wt% of a long-chain monomer with a general formula of CH2=CR1COO(CH2CH2O)m-(CH3CHCH2O)nR2, a weight ratio of the outer shell to the capsule core is 1:1-9, and the capsule core is an organic phase change material. According to the present invention, the product has good dispersion stability in practical application, especially in the application of aqueous matrixes or inorganic materials, so as to further improve the energy storage property; and with the long-chain hydrophilic group, the interfacial action force between the phase change microcapsule and the matrix can be enhanced, and the problems of the reduced strength and the like in the application of the material can be avoided.

The invention discloses a bamboo fiber reinforced polylactic acid composite material used for 3D printing and a preparation method for the bamboo fiber reinforced polylactic acid composite material. The material is a co-mixture comprising modified bamboo fibers, polylactic acid, polypropylene, a compatilizer and a plasticizer. The invention further provides the preparation method for the bamboo fiber reinforced polylactic acid composite material, wherein the preparation method comprises the following steps: preparing the modified bamboo fibers; co-mixing the bamboo fibers, the polylactic acid, the polypropylene, the compatilizer and the plasticizer by a high-speed mixer to form co-mixed materials; fusing, co-mixing, extruding and pelletizing the co-mixed materials by a twin-screw extrusion method, and repeating the extruding twice; processing the composite material particles into monofilaments by a single screw extruder after drying. According to the bamboo fiber reinforced polylactic acid composite material, on the basis of keeping the excellent performance of the polylactic acid, elongation at break and impact resistance of the material are improved. The method is more liable to realize industrialization, and the material has unique color of natural bamboo fibers, and color master batch is not required to add in a processing process for coloring.

The invention discloses an anti-oxidization and high-intensity 3D printing material for building engineering. The anti-oxidization and high-intensity 3D printing material is prepared from the following raw materials: modified polyphenylene sulfide, polyethylene sulfone, polycarbonate, polyvinyl chloride resin, diisocyanate, trimethyl phosphate, chlorinated polyethylene, polytetrafluoroethylene fine powder, hydroxypropyl methyl cellulose, nano titanium dioxide, zinc borate, antimonous oxide, organic bentonite, glass fiber, nano-zinc oxide, basalt plain fiber cloth, nanosilicon dioxide, tetraethoxysilane, a silane coupling agent KH-570, glycerinum, a defoaming agent, an anti-oxidization modifier and a modifier filler. The invention further provides a preparation method of the anti-oxidization and high-intensity 3D printing material for building engineering. The prepared 3D printing material is excellent in oxidization resistance and intensity.

The invention relates to a preparation method of a plastic woven bag. The invention aims at solving the problems of poor bursting strength, poor tearing strength and poor tensile strength of an existing plastic woven bag taking a polypropylene material as a base fabric. The preparation method comprises the following steps: 1, preparing a mixture from a coating plastic coated alloy additive, an LLDPE (linear low density polyethylene) resin, a PP (propene polymer) resin antioxidant and an ultraviolet light absorber; 2, extruding the mixture by using an extruder and cooling and forming to obtain a coating woven fabric used for producing the woven bag; 3, putting the coating woven fabric used for producing the woven bag into a screw extruder and extruding to obtain ribbon-like filaments of the coating fiber of the woven bag; 4, using a cylinder loom to woven the ribbon-like filaments of the coating fiber of the woven bag through a flat die method, and sequentially cutting, tailoring and sewing to obtain the plastic woven bag. The preparation method of the plastic woven bag is mainly used to prepare the plastic woven bag.

The invention provides a polyether-ether-ketone/nanometer zinc oxide/carbon fiber wear-resistant composite material and a preparation method thereof, and application of the composite material to mechanical polishing of retaining rings, belonging to the technical field of polymer-based composite materials. The composite material is composed of, by mass, 75 to 90% of polyether-ether-ketone resin, 5 to 20% of carbon fibers coated by polyethersulfone and 2.5 to 7.5% of nanometer zinc oxide modified by a coupling agent, summing to 100%. To improve dispersibility of zinc oxide nanoparticles and reduce the agglomeration degree of the zinc oxide nanoparticles, the coupling agent is employed for surface modification of the zinc oxide nanoparticles; and polyethersulfone is used for physical coating of the surfaces of the carbon fibers so as to improve compatibility between the carbon fibers and polyether-ether-ketone. Compared with a polyether-ether-ketone composite material without any treatment, the wear-resistant composite material provided by the invention has more excellent strength, wear resistance and antifriction performance, is low in processing cost and is applicable to mechanical polishing of retaining rings.

Belonging to the technical field of polymer composite materials, the invention relates to a polyether-ether-ketone wear resistant composite material, a preparation method and application thereof in mechanical polishing retaining rings. The polyether-ether-ketone wear resistant composite material is composed of, by mass percentage, 90-99.99% of polyether-ether-ketone resin and the balance coupling agent modified graphene oxide, and is prepared by a melt blending process. In order to improve the dispersibility of graphene oxide, the coupling agent is employed to perform surface treatment on graphene oxide. The polyether-ether-ketone wear resistant composite material prepared by the method provided by the invention has the characteristics of good wear resistance, high strength, high temperature resistance and the like, the processing technology is simple, the processing cost is low, and the polyether-ether-ketone wear resistant composite material meets the material requirement of mechanical polishing retaining rings. The material greatly reduces the processing cost of mechanical polishing retaining rings, and prolongs the service life of mechanical polishing retaining rings.

3D printing polylactic acid/leather powder composite materials comprise the components in parts by weight: 70-85 parts of polylactic acid, 1-5 parts of a chain extender, 1-5 parts of a coupling agent, 0.5-1 part of a nucleating agent, 0-25 parts of leather powder, 5-10 parts of a flexibilizer, 1-5 parts of a reinforcing agent, and 0-0.1 part of an antioxidant. According to the 3D printing polylactic acid/leather powder composite materials, an in-situ melt grafting blending technology is utilized, polylactic acid is subjected to modified processing, the toughness, the impact strength and the heat distortion temperature of the polylactic acid are improved to a large extent, a series of 3D printing polylactic acid/leather powder composite materials which can be completely biodegradable are prepared, and thus the polylactic acid can have wider application prospects in 3D printing materials.

The invention provides a polylactic acid antibacterial thin film and a preparation method thereof, and relates to the technical field of polymer materials. The preparation method includes the steps: carrying out acid activation treatment of layered clay LDHs; then forming an organic coating material of tannic acid and ferric ions on the surface of the acid activated LDHs, to obtain LDHs@TA-Fe (III); adding glutathione to a silver nitrate solution to obtain a nano silver precursor, and carrying out a reaction of the LDHs@TA-Fe (III) with the nano silver precursor to obtain nano silver loaded modified layered clay; and finally, mixing the nano silver loaded modified layered clay and polylactic acid to form a film, and thus obtaining the polylactic acid antibacterial thin film which has excellent mechanical properties, barrier properties and antibacterial properties.

The invention discloses a degradable composite material and a preparation method thereof, and belongs to the technical field of polymer processing and modification. The degradable composite material comprises the following components in parts by weight: 50-90 parts of polylactic acid A, 0.1-10 parts of polylactic acid B (the polylactic acid A and the polylactic acid B are optical isomers), 1-20 parts of a degradable polyester C, 1-50 parts of a polylactic acid B-degradable polyester C copolymer and 0.1-5 parts of a functional additive. The degradable composite material disclosed by the invention not only has excellent toughness, but also has excellent heat resistance, is completely biodegradable, and can be widely applied to the fields of plastic structural parts, plastic packages, automotive upholstery, medical consumables and the like.

The invention provides a soybean protein-calcium carbonate nano-adhesive as well as a preparation method and application thereof, aiming at overcoming the defects of low bonding strength and poor water resistance existing in the traditional soybean protein-calcium carbonate adhesive. The preparation method has the advantages of simple and convenient process, low production cost, no pollution and suitability to industrialized production. The adhesive can be used for bonding wood, bamboo, vines, straws and papers and other fiber materials and is convenient to apply with good bonding performance. The soybean protein-calcium carbonate nano-adhesive of the invention comprises the following components in parts by weight: 80-95 parts of soybean protein matrixes (1) and 1-15 parts of inorganic calcium carbonate particles (2) dispersed in the (1) in nano sizes.

The invention belongs to the field of high temperature resistance nylon composite materials, and relates to an aramid fiber reinforced high temperature resistance nylon composite material and a preparation method thereof. The composite material is prepared from the following components by weight: 100 parts of a nylon salt, 1-13 parts of aramid fibers, 0.1-1 part of a capping agent, 0.2-1 part of montmorillonite, 0.1-0.6 part of a catalyst, and 30-60 parts of deionized water. According to the present invention, the in situ polymerization method is adopted to improve the interface adhesion between the aramid fibers and the nylon matrix and improve the mechanical property of the composite material; the prepared reinforced high temperature resistance nylon composite material has characteristics of good mechanical property, high heat distortion temperature and low water absorption compared with the pure nylon matrix; and the method is simple and is easy to perform, and is suitable for large scale industrial production.

The invention belongs to the field of high polymer materials, particularly relating to a poly (arylene ether nitrile) composite material and a preparation method thereof. The invention aims to solve the first technical problem of providing the poly (arylene ether nitrile) composite material with high performance and wear resistance. The poly (arylene ether nitrile) composite material of the invention comprises the following components in parts by weight: 40-70 parts of poly (arylene ether nitrile), 10-40 parts of filling, 3-10 parts of phthalocyanine prepolymer and 0-7 parts of anti-wear additive. The phthalocyanine prepolymer of the invention has the effect of plastification and improve the interface action between a resin system and fibers and between the resin system and the anti-wear additive, and the mechanical strength, abrasive resistance and abrasive resistance of the composite material.

The invention provides a high-barrier property toughening polylactic acid film and a preparation method thereof, and relates to the field of high polymer materials. The preparation method comprises the following steps: preparing laminar double-hydroxyl metal oxides (LDHs) with a high-temperature hydrothermal method; dispersing the LDHs in water, adding a tannin solution, performing adsorption, further adding a ferric salt solution to obtain a reaction liquid, and rapidly obtaining modified LDHs (LDHS@TA-FE (III)); dispersing the modified LDHs in dimethyl formamide, adding polylactic acid, performing heating stirring dissolution, transferring into filming equipment, and performing drying filming; performing adsorption deposition and chelation on tannin (TA) and ferrous ions on the surfaces of the LDHs, thereby obtaining a core-shell structure of LDHs coated with Ta-Fe<3+>. The obtained polylactic acid film is remarkable in barrier property and toughening function, LDHS@TA-FE (III) and PLA (Polylactic Acid) are in good compatibility and play a relatively good interface function, and thus the use performance of PLA is improved.

A preparation method of nano calcium carbonate suspension used for natural rubber latex reinforcement comprises the following steps: mixing pure concentration of organic alcohol and silane coupling agent, and fully and uniformly stirring to prepare a complexing agent, the weight ratio of the organic alcohol and silane coupling agent being 1 : 0.8-1.4; weighing 100 parts by weight of surface-modified nano calcium carbonate by stearic acid to slowly mix with 45 to 60 parts by weight of the complexing agent to prepare a mixed liquid; sealing the mixed liquid in a container, allowing the container to stand at room temperature, so that the complexing agent is slowly penetrated into the surface of the nano calcium carbonate until a layer of water film is observed to appear on the surface of the nano calcium carbonate, then adding 800 to 950 parts of water, and uniformly stirring to prepare the nano calcium carbonate suspension used for natural rubber latex reinforcement. The method uses relatively little amount of the complexing agent, and can ensure a uniform contact of the complexing agent with the stearic acid on the surface of the modified nano calcium carbonate particles.

The invention discloses a thermal conductive carbon fiber reinforced PET (polyethylene terephthalate)/polyester alloy and a preparation method thereof. The PET/polyester alloy is composed of the following components in percentage by weight: 30-40% of PET, 4-10% of polyester, 2-4% of a nucleating agent, 30-45% of thermal conductive filler, 5-20% of carbon fiber, 1-2% of a coupling agent, 0.5-1% of an antioxidant and 0.5-1% of a lubricant. The preparation method of the PET/polyester alloy comprises the following steps: firstly, mixing the PET, the polyester, the nucleating agent, the thermal conductive filler, the coupling agent, the antioxidant and the lubricant for 3-5 minutes in a high-speed mixing machine; then, adding the obtained mixture from a first-section barrel of a twin-screw extruder, and then adding the carbon fiber from a fourth-section barrel of the twin-screw extruder; and through controlling the rotating speed of the twin-screw extruder to be 1050-1200rpm and controlling the temperature at 240-250 DEG C, carrying out extrusion granulating, thus obtaining the thermal conductive carbon fiber reinforced PET/polyester alloy which has the advantages of high mechanical property, short molding cycle and good product appearance.

The invention discloses a glass fiber-reinforced polypropylene resin composition formula and a preparation method, wherein the glass fiber-reinforced polypropylene resin composition formula comprises the following components by weight parts: 95-100 parts of mixtures of polypropylene and glass fiber, 1-10 parts of unsaturated resins, 0.01-0.2 part of cross-linking agent and 0.1-1 part of antioxidant. The preparation method uses unsaturated polyester as an interface compatilizer to prepare polypropylene graft which has the functions of crosslinking and coupling and can form a grafting monomer when melted with polypropylene to be extruded so that the surface activity of the polypropylene is enhanced, a reactive group at one end of the polypropylene and the surface of the glass fiber form an ionic bond, a long chain at the other end and the polypropylene generate strong tangling function so that the interface acting force is obviously improved, and then the polypropylene graft with high strength and good stability is obtained.

The invention discloses a preparation method of olefin rubber/filler blend vulcanized rubber. The method comprises the following steps: preparing a filler predispersion solution; plasticizing unvulcanized natural rubber by a rubber Banbury mixer, mixing with styrene-butadiene rubber and cis-1,4-polybutadiene rubber, increasing the temperature of the Banbury mixer to 110-160 DEG C, adding the filler predispersion solution into the rubber Banbury mixer, compounding, evaporating to remove water, and drying with hot air to obtain an olefin rubber/filler mixture; adding zinc oxide, stearic acid, a vulcanizing agent, an accelerator and an anti-aging agent into a rubber open mill or Banbury mixer, compounding uniformly, discharging, and standing to obtain the olefin rubber/filler compounded rubber; and vulcanizing the olefin rubber/filler compounded rubber on a flat vulcanizing machine to obtain the olefin rubber/filler blend vulcanized rubber. The method has the advantages of simple technique, no solvent pollution and no flying dust, is green and environment-friendly, and can be widely used for mixing multiple fillers and rubber.

The invention relates to grinding roller sealing ring materials. The grinding roller sealing ring materials are characterized by comprising, by weight, 100 parts of fluororubber, 10-20 parts of organic montmorillonite, 10-30 parts of wear-resisting carbon black, 5-20 parts of modified silicon carbide, 10-20 parts of graphene composites, 15-25 parts of magnesium oxide, 0.5-2 parts of hydroxyl silicone oil, 0.1-3 parts of microcrystalline wax, 0.5-2 parts of bisphenol AF and 0.5-1.5 parts of benzyl triphenyl phosphoric chloride. The graphene composites are graphene/ hydrogenated styrene- butadiene- styrene compounds subjected to in-situ reduction. The graphene/ hydrogenated styrene- butadiene- styrene compounds subjected to in-situ reduction are added, the graphene composites are dispersed easily, the problems of difficult stripping of graphene and difficult addition caused by low apparent density in the prior art are resolved, graphene can be evenly dispersed in the grinding roller sealing ring materials, the function of the graphene is fully played, and the wear resistance and heat resistance of the grinding roller sealing ring materials are effectively improved.

The invention discloses an ultraviolet curing transfer adhesive for a glass substrate. The ultraviolet curing transfer adhesive comprises aliphatic polyurethane acrylate, an acrylate active diluent, a photoinitiator, an acrylate aid and a silane coupling agent. The ultraviolet curing transfer adhesive for a glass substrate, disclosed by the invention, has good mechanical property, wear resistance, solvent resistance and cold/hot impact resistance while the adhesion between the adhesive layer and the substrate is good; and particularly, after water boiling test, the adhesion between the adhesive layer and the substrate is still greater than 4B, and little environmental pollution is caused. The problems that existing ultraviolet curing transfer adhesive has low adhesion and is not resistant to water boiling and solvent are solved; and the ultraviolet curing transfer adhesive disclosed by the invention meets the industry requirements, reduces the production cost of an enterprise and brings profit to the enterprise.