Environment-friendly liquid silica gel and green synthesis method thereof

Abstract

The invention discloses environment-friendly liquid silica gel and a green synthesis method of the environment-friendly liquid silica gel. Comprising, but is not limited to, 20 to 40 parts of an organopolysiloxane-based polymer, 5 to 15 parts of an environment-friendly plasticizer, 10 to 30 parts of a filling material, 1 to 5 parts of a cross-linking agent, 0.1 to 2 parts of a catalyst, 0.5 to 3 parts of a surfactant, 0.1 to 1 part of an anti-aging agent, 2 to 8 parts of an environment-friendly flame retardant, 0.1 to 1 part of an antibacterial agent, 0.01 to 0.5 part of a coloring agent, 0.1 to 1 part of an odor absorbent and 0.5 to 2 parts of a dispersant. The environment-friendly liquid silica gel not only maintains excellent physical and chemical properties, but also completely meets the modern environmental protection standard, and avoids harmful components existing in a traditional formula.

Description

Technical Field

[0001] The invention belongs to the technical field of silica gel, and in particular relates to an environmentally friendly liquid silica gel and a green synthesis method thereof. Background Art

[0002] Liquid Silicone Rubber (LSR), as a high-performance elastomeric material, has been widely used in the fields of medical, electronics, automobiles, and daily necessities due to its excellent physical properties, chemical stability, and biocompatibility. Traditional liquid silicone formulas usually include organic polysiloxane polymers as the main component, and add appropriate amounts of plasticizers, fillers, crosslinkers, and catalysts to meet different application requirements. However, traditional formulas may contain ingredients that are harmful to the environment or human health, such as certain types of flame retardants, antibacterial agents, and other additives, which to a certain extent limits its scope of use, especially in applications with strict environmental protection requirements.

[0003] In addition, the preparation process of traditional liquid silicone often requires the use of solvents or other auxiliary substances, which not only increase production costs, but also easily evaporate during processing, causing environmental pollution and waste of resources. At the same time, due to the lack of effective odor control measures, some products may emit unpleasant odors, affecting user experience.

[0004] One of the main challenges facing existing liquid silicone technology is that it is difficult to achieve complete environmental protection while ensuring material performance. Specifically, how to develop an environmentally friendly liquid silicone that does not contain any harmful substances and has excellent processing performance without sacrificing key material properties such as mechanical strength, heat resistance and flexibility has become an urgent problem to be solved in the industry. Summary of the invention

[0005] The purpose of the present invention is to provide an environmentally friendly liquid silica gel and a green synthesis method thereof, which not only maintains excellent physical and chemical properties, but also fully complies with modern environmental protection standards and avoids harmful ingredients existing in traditional formulas, so as to solve the problems of the prior art raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention proposes an environmentally friendly liquid silicone, which comprises the following ingredients: organic polysiloxane polymer: 20 parts to 40 parts, environmentally friendly plasticizer: 5 parts to 15 parts, filling material: 10 parts to 30 parts, cross-linking agent: 1 part to 5 parts, catalyst: 0.1 parts to 2 parts, surfactant: 0.5 parts to 3 parts, antioxidant: 0.1 parts to 1 part, environmentally friendly flame retardant: 2 parts to 8 parts, antibacterial agent: 0.1 parts to 1 part, colorant: 0.01 parts to 0.5 parts, odor absorbent: 0.1 parts to 1 part, dispersant: 0.5 parts to 2 parts.

[0007] Preferably, the environmentally friendly liquid silicone contains the following ingredients: organic polysiloxane polymer: 20 parts, environmentally friendly plasticizer: 5 parts, filling material: 10 parts, cross-linking agent: 1 part, catalyst: 0.1 part, surfactant: 0.5 part, antioxidant: 0.1 part, environmentally friendly flame retardant: 2 parts, antibacterial agent: 0.1 part, colorant: 0.01 part, odor absorbent: 0.1 part, dispersant: 0.5 part.

[0008] Preferably, the environmentally friendly liquid silicone contains the following ingredients: organic polysiloxane polymer: 30 parts, environmentally friendly plasticizer: 10 parts, filling material: 20 parts, cross-linking agent: 3 parts, catalyst: 1 part, surfactant: 2 parts, antioxidant: 0.5 parts, environmentally friendly flame retardant: 5 parts, antibacterial agent: 0.5 parts, colorant: 0.2 parts, odor absorbent: 0.5 parts, dispersant: 1 part.

[0009] Preferably, the environmentally friendly liquid silicone contains the following ingredients: organic polysiloxane polymer: 40 parts, environmentally friendly plasticizer: 15 parts, filling material: 30 parts, cross-linking agent: 5 parts, catalyst: 2 parts, surfactant: 3 parts, antioxidant: 1 part, environmentally friendly flame retardant: 8 parts, antibacterial agent: 1 part, colorant: 0.5 parts, odor absorbent: 1 part, dispersant: 2 parts.

[0010] On the other hand, the present invention provides a method for synthesizing environmentally friendly liquid silica gel, comprising the following steps:

[0011] Raw material preparation: prepare ingredients containing organic polysiloxane polymer, environmentally friendly plasticizer, filler, cross-linking agent, catalyst, surfactant, antioxidant, environmentally friendly flame retardant, antibacterial agent, colorant, odor absorbent and dispersant;

[0012] Premixing stage: Under low-speed stirring conditions, the organopolysiloxane polymer is first mixed with an environmentally friendly plasticizer, part of the filling material and a surfactant to form a uniform base slurry. The temperature in this process is controlled between 20°C and 40°C.

[0013] Adding functional additives: gradually add the remaining filler materials, cross-linking agents, catalysts, antioxidants, environmentally friendly flame retardants, antibacterial agents, colorants, odor absorbers and dispersants under continuous stirring, ensuring that each additive is fully mixed into the base slurry, while maintaining a gentle stirring speed to prevent the introduction of air bubbles, and obtain a mixture;

[0014] Vacuum degassing: The mixture is placed in a vacuum environment for degassing to remove bubbles generated during the mixing process;

[0015] Curing and molding: Pour the degassed mixture into the mold and cure it under set temperature and pressure conditions.

[0016] Preferably, the organopolysiloxane polymer is one or more of dimethyl silicone oil, phenyl silicone oil or a mixture thereof, and has a viscosity ranging from 500 to 10,000 centistokes.

[0017] Preferably, the rotation speed under the low-speed stirring condition is 300-600 rpm, and the filler material added in the premixing stage accounts for 40 parts to 60 parts of the total filler material.

[0018] Preferably, the cross-linking agent is one or more of peroxides, platinum catalysts or a combination thereof, and the addition ratio is 2-4 parts of the total amount.

[0019] Preferably, the vacuum degassing treatment is performed when the vacuum degree reaches below 0.1 mbar, and the optimal degassing time T1 is calculated by the following formula:

[0020] T1=k*V^(1 / 3)*(C_initial / C_target);

[0021] Where T1 is the degassing time in minutes; k is a constant factor related to equipment efficiency, ranging from 2 to 4; V is the volume of the mixture; C_initial is the initial gas content; and C_target is the target gas content.

[0022] Preferably, the curing molding process is carried out at a temperature of 80°C-150°C and a pressure of 0.1-0.5 MPa, and the optimal curing time T2 is calculated by the following formula: T12=a*(H^b)*exp(-E / (R*T_temp));

[0023] Where, T2 is the curing time; a and b are constant factors related to material properties, a ranges from 0.5 to 2, and b ranges from 0.5 to 1.5; H is the product thickness; E is the activation energy; R is the ideal gas constant; and T_temp is the curing temperature.

[0024] Technical effects and advantages of the present invention: Compared with the prior art, the environmentally friendly liquid silica gel and the green synthesis method thereof proposed by the present invention have the following advantages:

[0025] 1. By carefully selecting and optimizing the proportions of various ingredients, including but not limited to 20-40 parts of organic polysiloxane polymer, 5-15 parts of environmentally friendly plasticizer, 10-30 parts of filler material, 1-5 parts of cross-linking agent, 0.1-2 parts of catalyst, 0.5-3 parts of surfactant, 0.1-1 part of antioxidant, 2-8 parts of environmentally friendly flame retardant, 0.1-1 part of antibacterial agent, 0.01-0.5 part of colorant, 0.1-1 part of odor absorbent and 0.5-2 parts of dispersant, the environmentally friendly liquid silicone not only maintains excellent physical and chemical properties, but also fully complies with modern environmental protection standards and avoids harmful ingredients present in traditional formulas.

[0026] 2. The present invention also pays special attention to reducing energy consumption and waste emissions during the production process to ensure the green and environmental protection of the entire manufacturing process. By introducing advanced synthesis technology and process control means, efficient production and high-quality output of products are achieved, while the occurrence of bad odors is significantly reduced, greatly improving the user experience satisfaction. Therefore, the present invention provides a new solution and technical support for promoting the sustainable development of the liquid silicone industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The present invention is a flow chart of a green synthesis method of environmentally friendly liquid silica gel. DETAILED DESCRIPTION

[0028] The following will be combined with the accompanying 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, rather than all the embodiments. The specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0029] Example 1

[0030] In the present embodiment, an environmentally friendly liquid silicone is provided, and the environmentally friendly liquid silicone comprises the following ingredients: organic polysiloxane polymer: 20 parts, environmentally friendly plasticizer: 5 parts, filling material: 10 parts, cross-linking agent: 1 part, catalyst: 0.1 part, surfactant: 0.5 part, antioxidant: 0.1 part, environmentally friendly flame retardant: 2 parts, antibacterial agent: 0.1 part, colorant: 0.01 part, odor absorbent: 0.1 part, dispersant: 0.5 part.

[0031] The above-mentioned organopolysiloxane polymers provide excellent mechanical strength, elasticity and heat resistance; they have good corrosion resistance and oxidation resistance and are suitable for a variety of environmental conditions. Environmentally friendly plasticizers increase the softness and processability of the material and reduce the risk of brittle cracking. Environmentally friendly plasticizers are selected to meet strict environmental standards. Filling materials such as calcium carbonate or silica can increase the hardness and wear resistance of the product. The appropriate addition of filling materials can reduce production costs without sacrificing key performance. The cross-linking agent forms a three-dimensional network structure during the curing process, which improves the physical properties of the product and helps to improve the material's tear strength and elastic recovery ability.

[0032] Catalysts (shorten curing time, improve production efficiency, ensure that the curing reaction is carried out at the appropriate temperature and pressure, and ensure product quality. Surfactants improve the wettability and dispersibility of the mixture, making the ingredients more evenly distributed and helping to maintain the stability and consistency of the mixture.

[0033] Anti-aging agents protect materials from ultraviolet rays, oxygen and other environmental factors, prevent aging, and maintain their original physical and chemical properties after long-term use. Environmentally friendly flame retardants give products self-extinguishing and low smoke generation properties, enhance safety, use environmentally friendly flame retardants, and reduce harmful emissions.

[0034] Antimicrobial agents inhibit the growth of bacteria, mold and fungi, and are particularly suitable for applications with high hygiene requirements. Antimicrobial agents that are harmless to the human body are selected to ensure safety of use. Colorants can adjust the color of products according to needs to meet the needs of different application scenarios. Only a small amount is needed to achieve the ideal coloring effect without affecting other properties.

[0035] Odor absorbers effectively absorb and neutralize unpleasant odors that may be generated during the production process, ensuring that the final product has no noticeable odor and improving user satisfaction. Dispersants help fillers and other additives to be evenly distributed in the matrix to avoid aggregation, making the mixture easier to handle and shape, and improving production efficiency.

[0036] When the above ingredients are mixed together in specific proportions, they work together to produce the following comprehensive technical effects:

[0037] Excellent physical properties: Through a carefully formulated combination of ingredients, this environmentally friendly liquid silicone exhibits excellent mechanical strength, elasticity and heat resistance, while also having outstanding flexibility and wear resistance.

[0038] Completely environmentally friendly: All ingredients are strictly screened to ensure that they do not contain any harmful substances, comply with international and domestic environmental regulations, and support sustainable development goals.

[0039] Efficient processing performance: The optimized formula and preparation process improve the fluidity and processing convenience of the material, reduce the production difficulty, increase the yield rate, and reduce the scrap rate.

[0040] Versatility: In addition to basic physical properties, this silicone also has additional functions such as flame retardant, antibacterial, and anti-aging, and is widely used in many fields such as medical, electronics, and automobiles.

[0041] Optimized user experience: By adding odor absorbers and precisely controlling colorants, the product is ensured to be odorless and have consistent color, improving the overall user experience.

[0042] In summary, the environmentally friendly liquid silicone provided in this embodiment not only meets high standards in performance, but also makes positive contributions to environmental protection and social responsibility.

[0043] The green synthesis method of the above-mentioned environmentally friendly liquid silica gel is as follows: Figure 1 As shown, the following steps are included:

[0044] Raw material preparation: Prepare ingredients containing organic polysiloxane polymer, environmentally friendly plasticizer, filler, crosslinker, catalyst, surfactant, antioxidant, environmentally friendly flame retardant, antibacterial agent, colorant, odor absorber and dispersant; further, the organic polysiloxane polymer is one or more of dimethyl silicone oil, phenyl silicone oil or a mixture thereof, and its viscosity range is 500 centistokes. The crosslinker is one or more of peroxide, platinum catalyst or a combination thereof, and the addition ratio is 2 parts of the total amount.

[0045] Premixing stage: Under low-speed stirring conditions, the organopolysiloxane polymer is first mixed with an environmentally friendly plasticizer, a portion of the filling material and a surfactant to form a uniform base slurry. The temperature in this process is controlled between 20°C; further, the rotation speed under the low-speed stirring conditions is 300 rpm, and the filling material added in the premixing stage accounts for 40 parts of the total filling material.

[0046] Adding functional additives: gradually add the remaining filler materials, cross-linking agents, catalysts, antioxidants, environmentally friendly flame retardants, antibacterial agents, colorants, odor absorbers and dispersants under continuous stirring, ensuring that each additive is fully mixed into the base slurry, while maintaining a gentle stirring speed to prevent the introduction of air bubbles, and obtain a mixture;

[0047] Vacuum degassing: The mixture is placed in a vacuum environment for degassing to remove bubbles generated during the mixing process; further, the vacuum degassing is performed when the vacuum degree reaches below 0.1 mbar, and the optimal degassing time T1 is calculated by the following formula to ensure effective removal of air bubbles in the mixture and improve the transparency and physical properties of the product:

[0048] T1=k*V^(1 / 3)*(C_initial / C_target);

[0049] Where T1 is the degassing time in minutes; k is a constant factor related to equipment efficiency, ranging from 2 to 4; V is the volume of the mixture; C_initial is the initial gas content; C_target is the target gas content. This formula provides a scientific method to determine the degassing time required under specific conditions, thereby ensuring process consistency and product quality stability. In actual application, parameter k should be adjusted according to specific equipment characteristics, material properties, and expected product quality standards.

[0050] Curing and molding: pouring the degassed mixture into a mold and curing and molding under set temperature and pressure conditions; further, the curing and molding process is carried out at a temperature of 80° C. and a pressure of 0.1 MPa, and the optimal curing time T2 is calculated by the following formula to obtain the best curing effect and production efficiency: T12=a*(H^b)*exp(-E / (R*T_temp));

[0051] Where, T2 is the curing time; a and b are constant factors related to material properties, a ranges from 0.5 to 2, and b ranges from 0.5 to 1.5; H is the product thickness; E is the activation energy; R is the ideal gas constant; and T_temp is the curing temperature.

[0052] This formula provides a scientific method to determine the required curing time under specific conditions, thereby ensuring process consistency and product quality stability. In actual application, parameters a and b should be adjusted according to specific material properties, equipment characteristics and expected product quality standards.

[0053] Example 2

[0054] This embodiment provides an environmentally friendly liquid silicone, which contains the following components:

[0055] Organic polysiloxane polymer: 30 parts, environmentally friendly plasticizer: 10 parts, filling material: 20 parts, cross-linking agent: 3 parts, catalyst: 1 part, surfactant: 2 parts, antioxidant: 0.5 parts, environmentally friendly flame retardant: 5 parts, antibacterial agent: 0.5 parts, colorant: 0.2 parts, odor absorbent: 0.5 parts, dispersant: 1 part.

[0056] The green synthesis method of the environmentally friendly liquid silica gel comprises the following steps:

[0057] Raw material preparation: Prepare ingredients containing organic polysiloxane polymer, environmentally friendly plasticizer, filler, crosslinker, catalyst, surfactant, antioxidant, environmentally friendly flame retardant, antibacterial agent, colorant, odor absorber and dispersant; further, the organic polysiloxane polymer is one or more of dimethyl silicone oil, phenyl silicone oil or a mixture thereof, and its viscosity range is 8000 centistokes. The crosslinker is one or more of peroxide, platinum catalyst or a combination thereof, and the addition ratio is 3 parts of the total amount.

[0058] Premixing stage: Under low-speed stirring conditions, the organopolysiloxane polymer is first mixed with an environmentally friendly plasticizer, a portion of the filling material and a surfactant to form a uniform base slurry. The temperature in this process is controlled between 30°C; further, the rotation speed under the low-speed stirring conditions is 500 rpm, and the filling material added in the premixing stage accounts for 50 parts of the total filling material.

[0059] Adding functional additives: gradually add the remaining filler materials, cross-linking agents, catalysts, antioxidants, environmentally friendly flame retardants, antibacterial agents, colorants, odor absorbers and dispersants under continuous stirring, ensuring that each additive is fully mixed into the base slurry, while maintaining a gentle stirring speed to prevent the introduction of air bubbles, and obtain a mixture;

[0060] Vacuum degassing: The mixture is placed in a vacuum environment for degassing to remove bubbles generated during the mixing process; further, the vacuum degassing is performed when the vacuum degree reaches below 0.1 mbar, and the optimal degassing time T1 is calculated by the following formula:

[0061] T1=k*V^(1 / 3)*(C_initial / C_target);

[0062] Where T1 is the degassing time in minutes; k is a constant factor related to equipment efficiency, ranging from 2 to 4; V is the volume of the mixture; C_initial is the initial gas content; and C_target is the target gas content.

[0063] Curing and molding: pouring the degassed mixture into a mold and performing curing and molding under set temperature and pressure conditions; further, the curing and molding process is performed at a temperature of 120° C. and a pressure of 0.3 MPa, and the optimal curing time T2 is calculated by the following formula: T12=a*(H^b)*exp(-E / (R*T_temp));

[0064] Where, T2 is the curing time; a and b are constant factors related to material properties, a ranges from 0.5 to 2, and b ranges from 0.5 to 1.5; H is the product thickness; E is the activation energy; R is the ideal gas constant; and T_temp is the curing temperature.

[0065] Example 3

[0066] This embodiment provides an environmentally friendly liquid silicone, which contains the following components:

[0067] Organic polysiloxane polymer: 40 parts, environmentally friendly plasticizer: 15 parts, filling material: 30 parts, cross-linking agent: 5 parts, catalyst: 2 parts, surfactant: 3 parts, antioxidant: 1 part, environmentally friendly flame retardant: 8 parts, antibacterial agent: 1 part, colorant: 0.5 parts, odor absorbent: 1 part, dispersant: 2 parts.

[0068] The green synthesis method of the environmentally friendly liquid silica gel comprises the following steps:

[0069] Raw material preparation: Prepare ingredients containing organic polysiloxane polymer, environmentally friendly plasticizer, filler, crosslinker, catalyst, surfactant, antioxidant, environmentally friendly flame retardant, antibacterial agent, colorant, odor absorber and dispersant; further, the organic polysiloxane polymer is one or more of dimethyl silicone oil, phenyl silicone oil or a mixture thereof, and its viscosity range is 10000 centistokes. The crosslinker is one or more of peroxide, platinum catalyst or a combination thereof, and the addition ratio is 4 parts of the total amount.

[0070] Premixing stage: Under low-speed stirring conditions, the organopolysiloxane polymer is first mixed with an environmentally friendly plasticizer, a portion of the filling material and a surfactant to form a uniform base slurry. The temperature in this process is controlled at 40°C; further, the rotation speed under the low-speed stirring conditions is 600 rpm, and the filling material added in the premixing stage accounts for 60 parts of the total filling material.

[0071] Adding functional additives: gradually add the remaining filler materials, cross-linking agents, catalysts, antioxidants, environmentally friendly flame retardants, antibacterial agents, colorants, odor absorbers and dispersants under continuous stirring, ensuring that each additive is fully mixed into the base slurry, while maintaining a gentle stirring speed to prevent the introduction of air bubbles, and obtain a mixture;

[0072] Vacuum degassing: The mixture is placed in a vacuum environment for degassing to remove bubbles generated during the mixing process; further, the vacuum degassing is performed when the vacuum degree reaches below 0.1 mbar, and the optimal degassing time T1 is calculated by the following formula:

[0073] T1=k*V^(1 / 3)*(C_initial / C_target);

[0074] Where T1 is the degassing time in minutes; k is a constant factor related to equipment efficiency, ranging from 2 to 4; V is the volume of the mixture; C_initial is the initial gas content; and C_target is the target gas content.

[0075] Curing and molding: pouring the degassed mixture into a mold and performing curing and molding under set temperature and pressure conditions; further, the curing and molding process is performed at a temperature of 150° C. and a pressure of 0.5 MPa, and the optimal curing time T2 is calculated by the following formula: T12=a*(H^b)*exp(-E / (R*T_temp));

[0076] Where, T2 is the curing time; a and b are constant factors related to material properties, a ranges from 0.5 to 2, and b ranges from 0.5 to 1.5; H is the product thickness; E is the activation energy; R is the ideal gas constant; and T_temp is the curing temperature.

[0077] Comparative Example 1

[0078] In order to prove the beneficial effects of the environmentally friendly liquid silica gel and its green synthesis method provided by this patent, the conventional formula and process are used to prepare the liquid silica gel in this comparative example, and the comparative test is carried out with the environmentally friendly liquid silica gel in the present invention. The following is a detailed comparative example design:

[0079] Preparation and performance testing of traditional liquid silicone

[0080] Ingredients (by mass): organic polysiloxane polymer: 20 parts, plasticizer (non-environmentally friendly type): 5 parts, filler: 10 parts, cross-linking agent: 1 part, catalyst: 0.1 parts, surfactant: 0.5 parts, antioxidant: 0.1 parts, flame retardant (containing halogen, non-environmentally friendly type): 2 parts, antibacterial agent (containing heavy metals, non-environmentally friendly type): 0.1 parts, colorant: 0.01 parts, dispersant: 0.5 parts.

[0081] Preparation steps:

[0082] Raw material preparation: Prepare the raw materials according to the above ingredient ratio.

[0083] Premixing stage: Under low speed stirring conditions (about 300 rpm), the organopolysiloxane polymer, plasticizer, part of the filler material (40% of the total amount) and surfactant are added to the mixing container to form a base slurry. This process is carried out at room temperature.

[0084] Adding functional additives: Continue to gradually add the remaining filler materials, cross-linking agent, catalyst, antioxidant, flame retardant, antibacterial agent, colorant and dispersant under constant stirring, ensuring that each additive is fully mixed into the base slurry.

[0085] Degassing treatment: The mixture obtained above was placed in a vacuum environment for degassing treatment, with the vacuum degree reaching below 0.1 mbar, and the treatment time was 15 minutes.

[0086] Curing and molding: Finally, the degassed mixture was poured into a mold and cured at a temperature of 120°C and a pressure of 0.3 MPa for 3 hours.

[0087] Performance testing and comparative analysis

[0088] Physical performance test:

[0089] Mechanical strength: The breaking strength and elongation of the samples were measured using a tensile testing machine.

[0090] Elastic recovery: The elastic recovery ability of the sample was evaluated by rebound test.

[0091] Heat resistance: Test the stability and deformation of samples in high temperature environment.

[0092] Environmental performance test:

[0093] VOC Emissions: Measures emissions of volatile organic compounds (VOCs) to assess their impact on air quality.

[0094] Hazardous substance detection: Use professional equipment to detect whether the product contains harmful substances such as heavy metals and halogens.

[0095] User experience evaluation:

[0096] Smell test: Invite users to make a subjective evaluation of the smell of the product.

[0097] Color consistency: Check the color uniformity and stability of the product.

[0098] The test results are compared in the following table:

[0099]

[0100] It can be clearly seen from the comparative experiments that the environmentally friendly liquid silicone provided by the present invention not only maintains excellent physical properties, such as higher mechanical strength, better elastic recovery and better heat resistance, but also significantly reduces VOC emissions and does not contain any harmful substances. In addition, the user experience has also been greatly improved, including no obvious odor and better color consistency. These advantages prove the effectiveness and superiority of the patented technical solution and provide strong support for promoting the sustainable development of the liquid silicone industry.

[0101] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An environmentally friendly liquid silicone, characterized in that: The environmentally friendly liquid silicone comprises the following ingredients: Organic polysiloxane polymer: 20 parts - 40 parts, environmentally friendly plasticizer: 5 parts - 15 parts, filling material: 10 parts - 30 parts, cross-linking agent: 1 part - 5 parts, catalyst: 0.1 parts - 2 parts, surfactant: 0.5 parts - 3 parts, antioxidant: 0.1 parts - 1 parts, environmentally friendly flame retardant: 2 parts - 8 parts, antibacterial agent: 0.1 parts - 1 parts, colorant: 0.01 parts - 0.5 parts, odor absorbent: 0.1 parts - 1 parts, dispersant: 0.5 parts - 2 parts.

2. The environmentally friendly liquid silicone according to claim 1, characterized in that: The environmentally friendly liquid silicone comprises the following ingredients: Organic polysiloxane polymer: 20 parts, environmentally friendly plasticizer: 5 parts, filling material: 10 parts, cross-linking agent: 1 part, catalyst: 0.1 parts, surfactant: 0.5 parts, antioxidant: 0.1 parts, environmentally friendly flame retardant: 2 parts, antibacterial agent: 0.1 parts, colorant: 0.01 parts, odor absorbent: 0.1 parts, dispersant: 0.5 parts.

3. The environmentally friendly liquid silicone according to claim 1, characterized in that: The environmentally friendly liquid silicone comprises the following ingredients: Organic polysiloxane polymer: 30 parts, environmentally friendly plasticizer: 10 parts, filling material: 20 parts, cross-linking agent: 3 parts, catalyst: 1 part, surfactant: 2 parts, antioxidant: 0.5 parts, environmentally friendly flame retardant: 5 parts, antibacterial agent: 0.5 parts, colorant: 0.2 parts, odor absorbent: 0.5 parts, dispersant: 1 part.

4. The environmentally friendly liquid silicone according to claim 1, characterized in that: The environmentally friendly liquid silicone comprises the following ingredients: Organic polysiloxane polymer: 40 parts, environmentally friendly plasticizer: 15 parts, filling material: 30 parts, cross-linking agent: 5 parts, catalyst: 2 parts, surfactant: 3 parts, antioxidant: 1 part, environmentally friendly flame retardant: 8 parts, antibacterial agent: 1 part, colorant: 0.5 parts, odor absorbent: 1 part, dispersant: 2 parts.

5. A method for synthesizing the environmentally friendly liquid silica gel according to any one of claims 1 to 4, characterized in that: The following steps are involved: Raw material preparation: prepare ingredients containing organic polysiloxane polymer, environmentally friendly plasticizer, filler, cross-linking agent, catalyst, surfactant, antioxidant, environmentally friendly flame retardant, antibacterial agent, colorant, odor absorbent and dispersant; Premixing stage: Under low-speed stirring conditions, the organopolysiloxane polymer is first mixed with an environmentally friendly plasticizer, part of the filling material and a surfactant to form a uniform base slurry. The temperature in this process is controlled between 20°C and 40°C. Adding functional additives: gradually add the remaining filler materials, cross-linking agents, catalysts, antioxidants, environmentally friendly flame retardants, antibacterial agents, colorants, odor absorbers and dispersants under continuous stirring, ensuring that each additive is fully mixed into the base slurry, while maintaining a gentle stirring speed to prevent the introduction of air bubbles, and obtain a mixture; Vacuum degassing: The mixture is placed in a vacuum environment for degassing to remove bubbles generated during the mixing process; Curing and molding: Pour the degassed mixture into the mold and cure it under set temperature and pressure conditions.

6. The method according to claim 5, characterized in that: The organopolysiloxane polymer is one or more of dimethyl silicone oil, phenyl silicone oil or a mixture thereof, and has a viscosity ranging from 500 to 10,000 centistokes.

7. The method according to claim 5, characterized in that: The rotation speed under the low-speed stirring condition is 300-600 rpm, and the filler material added in the premixing stage accounts for 40 parts to 60 parts of the total filler material.

8. The method according to claim 5, characterized in that: The cross-linking agent is one or more of peroxides, platinum catalysts or a combination thereof, and the addition ratio is 2-4 parts of the total amount.

9. The method according to claim 5, characterized in that: The vacuum degassing treatment is carried out when the vacuum degree reaches below 0.1 mbar, and the optimal degassing time T1 is calculated by the following formula: T1=k*V^(1 / 3)*(C_initial / C_target); Where T1 is the degassing time in minutes; k is a constant factor related to equipment efficiency, ranging from 2 to 4; V is the mixture volume; C_initial is the initial gas content; and C_target is the target gas content.

10. The method according to claim 5, characterized in that: The curing molding process is carried out at a temperature of 80°C-150°C and a pressure of 0.1-0.5 MPa, and the optimal curing time T2 is calculated by the following formula: T12=a*(H^b)*exp(-E / (R*T_temp)); Where, T2 is the curing time; a and b are constant factors related to material properties, a ranges from 0.5 to 2, and b ranges from 0.5 to 1.5; H is the product thickness; E is the activation energy; R is the ideal gas constant; and T_temp is the curing temperature.

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