A kind of benzene-free stabilizer of synthetic rubber and preparation method thereof

A synthetic rubber and stabilizer technology, which is applied in the field of synthetic rubber additive preparation, can solve problems such as easy hazards to occupational health and the environment, and low cost, and achieve the effects of reducing occupational health risks, reducing production costs, and excellent stability

Active Publication Date: 2018-10-12
SHANNA SYNTHETIC RUBBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that benzene-based organic solvents are used in the production process of existing synthetic rubber, which is likely to endanger occupational health and the environment, the present invention provides a benzene-free stabilizer for synthetic rubber and a preparation method thereof, and the prepared benzene-free stabilizer is environmentally friendly ,low cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Embodiment 1: a kind of benzene-free stabilizer of synthetic rubber, preparation method is: get the beaker of 500ml specification, with 30g tetraethylthiuram disulfide, 69g 2,6-di-tert-butyl-4-methylphenol , 6g of alkylphenol polyoxyethylene ether (OP-10) were added to the beaker, heated to 85 ° C and the mixture was completely dissolved to form a liquid organic phase component, and stirred for 3 minutes with a high-speed shearing machine at a speed of 1430 rpm. Form the mixed liquor of homogeneous state; The disproportionated potassium abietate soap liquid of 60g (the mass fraction of disproportionated potassium abietate is 25%, the mass fraction of water is 75%) is dissolved with 30g deionized water, and in high-speed shearing machine Slowly add it into the organic phase, and homogeneously pre-emulsify for 8 minutes under the high-speed shearing machine after the addition. Then, 105 g of deionized water was slowly added under stirring and cooled to room temperature to...

Embodiment 2

[0011] Embodiment 2: get the beaker of 500ml specification, with 36g tetrabutyl thiuram disulfide, 90g p-cresol and dicyclopentadiene butylation reaction product, 7.5g isomerism tridecanol polyoxyethylene ether (AEO5 -13) Add to beakers respectively, heat to 80°C and the mixture is completely dissolved to form a liquid organic phase component. Stir for 5 minutes with a high-speed shearing machine at a speed of 1000 rpm to form a homogenized mixed solution. The disproportionated sodium abietic acid soap liquid of 90g (the mass fraction of disproportionated abietic acid sodium soap is 22%, and the mass fraction of water is 78%) is dissolved with 54g deionized water, and slowly adds in the organic phase under high-speed shearing machine, After the addition, homogeneously pre-emulsify for 5 minutes under a high-speed shearing machine. Then, 22.5 g of deionized water was slowly added thereto under stirring state, and cooled to room temperature to obtain a benzene-free stabilizer. ...

Embodiment 3

[0012] Example 3: Take a 500ml beaker, add 45g of tetramethylthiuram disulfide, 30g of tributyl phosphite, and 6.6g of OP-10 into the beaker respectively, heat to 85°C and the mixture is completely dissolved to form a liquid organic phase The components were stirred for 3 minutes with a high-speed shearing machine at a speed of 1250 rpm to form a homogenized mixed solution. Dissolve 75g of potassium abietate soap liquid (the mass fraction of potassium abietate soap is 30%, and the mass fraction of water is 70%) with 65g deionized water, and slowly add it into the organic phase under a high-speed shearing machine, and add Afterwards, homogeneously pre-emulsify for 10 minutes under a high-speed shearing machine. Then, 78.4 g of deionized water was slowly added thereto under stirring state, and cooled to room temperature to obtain a benzene-free stabilizer. Test results: the average particle size is 1.12μm, and the viscosity is 768CPS.

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Abstract

The invention belongs to the technical field of preparation method of synthetic rubber additives, and provides a benzene-free stabilizing agent for synthetic rubber and a preparation method thereof in order to solve the problem that in the conventional synthetic rubber production process, benzene is used as the organic solvent, and the environment and workers are harmed by the benzene. The benzene-free stabilizing agent is composed of the following raw materials in percentage by the weight of the stabilizing agent: 10 to 30% of promoter, 10 to 30% of antioxidant, 2 to 3% of surfactant, 20 to 30% of dispersant, and the balance being deionized water. Benzene is not used as the organic solvent in the provided preparation method, thus the harms of benzene solvent to human body during the stabilizing agent preparation process are eliminated, and the health hazard to workers is reduced. Moreover, during the synthetic rubber production process, the solvent in the benzene-containing stabilizing agent should be recycled, the recycling technology is complicated, the energy is waste, and the human cost is increased; while the provided benzene-free stabilizing agent can save the recycling step, thus the energy consumption and human cost are both reduced, and the production cost is reduced therefor. The prepared benzene-free stabilizing agent is in an emulsion state, and the stability of the emulsion stabilizing agent is better than that of a suspension stabilizing agent.

Description

technical field [0001] The invention belongs to the technical field of preparation methods of synthetic rubber additives, and in particular relates to a synthetic rubber benzene-free stabilizer and a preparation method thereof. Background technique [0002] Most of the additives in the production process of synthetic rubber are oil-soluble substances, which must be dissolved with organic solvents, and then emulsified into an emulsion and added to the production system, so that the additives can be added to the rubber. The most commonly used organic solvents in the synthetic rubber industry are benzenes (benzene, toluene or xylene), and organic solvents need to be separated after they enter the production system, which not only increases the production cost but also increases the difficulty of the process. [0003] Benzene solvents have strong dissolving ability, but are highly toxic and volatile, which will inevitably endanger occupational health and the environment in indus...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K5/00C08K5/098C08K5/40C08K5/13C08K5/524C08K5/526C08K5/36C08L71/02C08L21/00
Inventor 李俊张志刚高文龙黄毅李敏魏凯沈凯燕彭瑞斌
Owner SHANNA SYNTHETIC RUBBER
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