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Thermoplastic vulcanized rubber material and preparation method thereof

A technology of thermoplastic vulcanization and rubber materials, applied in the field of rubber, can solve the problems of not meeting the color requirements of SEBS materials, opacity of vulcanized rubber, etc., and achieve the effect of increasing anti-ultraviolet performance, good whiteness and brightness, and good elasticity

Active Publication Date: 2017-04-05
安徽中翰高分子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] U.S. Patent US4311628 / 0272871A1 discloses the method for preparing thermoplastic vulcanizate, described elastomer is ethylene propylene rubber, resin is polypropylene, vulcanization system is phenolic resin vulcanizing agent, stannous chloride dihydrate is vulcanization accelerator and adopts dynamic vulcanization technology A thermoplastic vulcanizate is prepared, but the color of the vulcanizate is yellow and opaque, which cannot meet the color requirements of SEBS materials

Method used

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  • Thermoplastic vulcanized rubber material and preparation method thereof
  • Thermoplastic vulcanized rubber material and preparation method thereof
  • Thermoplastic vulcanized rubber material and preparation method thereof

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Embodiment 1

[0037] A thermoplastic vulcanized rubber material, its raw materials include by weight: 200 parts of EPDM rubber, 150 parts of SEBS, 38 parts of polypropylene, 125 parts of modified polyurethane, 125 parts of paraffin oil, 7 parts of compatibilizer, and 12 parts of filler , 5 parts of colorant, 3 parts of vulcanizing agent, 3 parts of anti-aging agent, 18 parts of lubricant.

[0038]The preparation method of the above-mentioned thermoplastic vulcanized rubber material comprises the following steps: mixing and banburying EPDM rubber, SEBS, polypropylene, modified polyurethane, aromatic oil, compatibilizer, anti-aging agent and lubricant, and extruding through a single screw Machine granulation to obtain mixed particles; mix the mixed particles, fillers, colorants, and vulcanizing agents, and dynamically vulcanize them through a twin-screw extruder, then pull them into strands, cool them, and pelletize them to obtain thermoplastic vulcanized rubber materials.

Embodiment 2

[0040] A kind of thermoplastic vulcanized rubber material, its raw material comprises by weight: vinyl content is 30wt% EPDM rubber 300 parts, SEBS 100 parts, polypropylene 50 parts, modified polyurethane 100 parts, paraffin oil 150 parts, PP- 5 parts of g-MA, 20 parts of inorganic filler with a whiteness of 86, 0.5 part of inorganic colorant, 5 parts of vulcanizing agent, 0.5 part of anti-aging agent, 30 parts of lubricant;

[0041] Among them, in the preparation process of modified polyurethane, 4,4'-diphenylmethane diisocyanate, polyoxypropylene glycol 2000, butyltin dilaurate, dimethylol propionic acid, N- Mix methylpyrrolidone to prepare a polyurethane prepolymer solution; adjust the temperature to 50°C, add γ-aminopropyltriethoxysilane modified diatomite and γ-aminopropyl triethoxysilane to the polyurethane prepolymer solution Ethoxysilane modified titanium dioxide, keep stirring for 3 hours, heat up to 70°C, add tridecafluoro-1-octanol, keep stirring for 4 hours, add pe...

Embodiment 3

[0045] A kind of thermoplastic vulcanized rubber material, its raw material comprises by weight: vinyl content is 50wt% EPDM rubber 100 parts, SEBS 200 parts, polypropylene 25 parts, modified polyurethane 150 parts, paraffin oil 100 parts, POE- 10 parts of g-MA, 5 parts of calcined kaolin with a whiteness of 87, 10 parts of organic colorant, 0.2 part of vulcanizing agent, 5 parts of anti-aging agent, and 5 parts of lubricant;

[0046] Among them, in the preparation process of modified polyurethane, 4,4'-diphenylmethane diisocyanate, polyoxypropylene glycol 2000, butyltin dilaurate, dimethylol propionic acid, N- Mix methylpyrrolidone evenly, raise the temperature to 85°C, and keep stirring for 3 hours to obtain a polyurethane prepolymer solution; adjust the temperature to 60°C, and add 400 meshes of γ-aminopropyltriethoxysilane modified silicon Alginate and 500 mesh γ-aminopropyltriethoxysilane modified titanium dioxide, keep stirring for 1h, heat up to 80°C, add tridecafluoro-...

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Abstract

The invention discloses a thermoplastic vulcanized rubber material. The thermoplastic vulcanized rubber material comprises the following components in parts by weight: 100-300 parts of EPDM rubber, 100-200 parts of SEBS, 25-50 parts of polypropylene, 100-150 parts of modified polyurethane, 100-150 parts of paraffin oil, 5-10 parts of a compatilizer, 5-20 parts of a filling material, 0.5-10 parts of a colouring agent, 0.2-5 parts of a vulcanizing agent, 0.5-5 parts of an antioxidant, and 5-30 parts of a lubricant. The invention also discloses a preparation method of the thermoplastic vulcanized rubber material. The thermoplastic vulcanized rubber material is white or light yellow. The thermoplastic vulcanized rubber material has the advantages of good oil resistant performance and heatproof aging performance, good mechanical property, and good hand feeling, can improve the detect of oil resistant performance of SEBS, and can satisfy the color requirement.

Description

technical field [0001] The invention relates to the technical field of rubber, in particular to a thermoplastic vulcanized rubber material and a preparation method thereof. Background technique [0002] SEBS is a hydrogenated styrene-butadiene-styrene block copolymer. It has good aging resistance and mechanical properties. It has both plasticity and high elasticity. It can be processed and used without vulcanization. The leftovers can be reused and widely used. It is used in the production of high-grade elastomers, plastic modifications, adhesives, lubricating oil tackifiers, fillers and sheathing materials for wires and cables, etc. However, SEBS is lacking in hand feeling, oil resistance, solvent resistance and melt strength, thus limiting its application. Polypropylene and EPDM rubber have very excellent properties, which can improve the oil resistance, solvent resistance and melt strength of SEBS. [0003] U.S. Patent No. 4,311,628 / 0272,871A1 discloses a method for pre...

Claims

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Application Information

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IPC IPC(8): C08L23/16C08L53/02C08L23/12C08L75/14C08L91/06C08K13/06C08K9/06C08K7/26C08K3/22C08K3/34C08G18/67C08G18/66C08G18/48C08G18/34C08G18/28C08G18/12
CPCC08G18/0823C08G18/12C08G18/2885C08G18/348C08G18/48C08G18/6692C08G18/673C08L23/16C08L53/025C08L2201/08C08L2205/02C08L2205/035C08L2312/00C08L23/12C08L75/14C08L91/06C08K13/06C08K9/06C08K7/26C08K2003/2241C08K3/346
Inventor 夏玉洁任福海王江玉陈恩军吴章柱姚伟郝好宋乔
Owner 安徽中翰高分子科技有限公司
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