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Nitrile rubber/polyvinyl chloride composite material and preparation method thereof

A technology of polyvinyl chloride and nitrile rubber, applied in the field of nitrile rubber/polyvinyl chloride composite materials and its preparation, to achieve the effects of improving wear resistance, stability and good hardness

Inactive Publication Date: 2015-05-06
东莞市鸿韬高分子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The Chinese patent literature with the application number 201110006865.5 has reported a kind of flame-retardant thermosetting nitrile polyvinyl chloride rubber for wire and cable. The strength, elongation and flame retardancy of this rubber are better than ordinary rubber, but its hardness and elasticity properties need to be further improved. improve

Method used

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  • Nitrile rubber/polyvinyl chloride composite material and preparation method thereof
  • Nitrile rubber/polyvinyl chloride composite material and preparation method thereof
  • Nitrile rubber/polyvinyl chloride composite material and preparation method thereof

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preparation example Construction

[0020] The embodiment of the present invention discloses a preparation method of nitrile rubber / polyvinyl chloride composite material, comprising the following steps: step a) mixing 70-80 parts by weight of ultra-high nitrile nitrile rubber, 20-30 parts by weight of medium-high nitrile nitrile Rubber and 35-50 parts by weight of polyvinyl chloride are put into an internal mixer, heated to 80-90°C, masticated for 10-30 minutes; step b) is heated to 110-130°C, and 5-10 parts by weight of porous ceramics, 10 -15 parts by weight of nano-boron nitride, 10-15 parts by weight of nano-silicon nitride, 20-30 parts by weight of sprayed carbon black, 4-8 parts by weight of zinc oxide, 2-4 parts by weight of stearic acid, 1-2 parts by weight Zinc stearate, 5-10 parts by weight of plasticizer DOP, 2-5 parts by weight of anti-aging agent RD and 2-5 parts by weight of anti-aging agent MB, kneading for 10-30 minutes, cooling after discharging, to obtain a mixed rubber; Step c) Put the mixed r...

Embodiment 1

[0038] In the polyvinyl chloride emulsion, the radiation crosslinking aid TMPTA is added according to 3-8% of the weight of the dry glue, and then the radiation crosslinking is carried out. After the radiation crosslinking, the polyvinyl chloride emulsion contains ultrafine vulcanized polyvinyl chloride Particles are then spray-dried to obtain ultra-fine vulcanized powder polyvinyl chloride.

[0039] The nitrile rubber / polyvinyl chloride composite material was prepared, and the raw materials and their parts by weight are shown in Table 1.

[0040] Table 1 Preparation raw materials and parts by weight of high-performance nitrile rubber / polyvinyl chloride composites

[0041]

[0042]

Embodiment 2

[0044] A preparation method of a high-performance nitrile rubber / polyvinyl chloride composite material. The material is prepared from the following raw materials in parts by weight: 70 parts of ultra-high nitrile nitrile rubber, 30 parts of medium-high nitrile nitrile rubber, and 35 parts of polyvinyl chloride , 5 parts of porous ceramics, 10 parts of nano boron nitride, 10 parts of nano silicon nitride, 30 parts of spray carbon black, 8 parts of zinc oxide, 4 parts of stearic acid, 1 part of zinc stearate, 5 parts of plasticizer DOP , 0.7 parts of thiocyanic acid, 10 parts of superfine fully vulcanized powder polyvinyl chloride, 0.5 parts of accelerator TMTD, 1 part of accelerator DM, 2 parts of anti-aging agent RD, and 2 parts of anti-aging agent MB.

[0045] The preparation method of described high-performance nitrile rubber / polyvinyl chloride composite material is as follows:

[0046] 1) Put ultra-high nitrile nitrile rubber, medium-high nitrile nitrile rubber and polyviny...

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Abstract

The invention provides a nitrile rubber / polyvinyl chloride composite material and a preparation method thereof. The nitrile rubber / polyvinyl chloride composite material is prepared from the following raw materials: ultra-high-nitrile nitrile rubber, medium-high-nitrile nitrile rubber, polyvinyl chloride, porous ceramics, nano boron nitride, nano-silicon nitride, spray furnace black, zinc oxide, stearic acid, zinc stearate, a plasticizer DOP, trithiocyanuric acid, ultra-fine fully vulcanized powder polyvinyl chloride, an accelerant TMTD, an accelerant DM, an anti-aging agent RD and an anti-aging agent MB. According to the composite material, part of carbon black is replaced by the porous ceramics as a reinforcing agent, and meanwhile nano-silicon nitride and nano boron nitride are used and then sulfurized after being mixed, so that a lubricating film is formed on the surface of a rubber product so as to generate a self-lubricating effect, and therefore, the wear resistance of the material is improved; the ultra-fine fully vulcanized powder polyvinyl chloride is used as a vulcanizing agent, the stability, the heat resistance and the hardness of the material are improved. Therefore, the prepared nitrile rubber / polyvinyl chloride composite material has good hardness, elasticity, heat resistance and wear resistance.

Description

technical field [0001] The invention relates to the technical field of modification of nitrile rubber, in particular to a nitrile rubber / polyvinyl chloride composite material and a preparation method thereof. Background technique [0002] Nitrile rubber (NBR) has good tear resistance, low compression deformation, excellent wear resistance and oil resistance. Its biggest use is to produce oil-resistant hoses, flame-retardant conveyor belts and oil-resistant rubber gasket materials. Has been widely used in automotive, aerospace, oil field chemical and other fields. At present, blending and modifying nitrile rubber to find a new reinforcement system and vulcanization system has become an important way to optimize the performance of nitrile rubber. [0003] At present, using technologies such as dynamic vulcanization technology, nitrile rubber / polyvinyl chloride, nitrile rubber / polypropylene, nitrile rubber / ethylene propylene rubber, nitrile rubber / polystyrene, nitrile rubber / c...

Claims

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Application Information

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IPC IPC(8): C08L9/02C08L27/06C08K13/04C08K7/24C08K3/38C08K3/34C08K3/04C08K5/12C08K3/22C08J3/28C08J3/24
CPCC08J3/24C08J3/28C08J2327/06C08K2201/011C08L9/02C08L2201/08C08L2205/025C08L2205/035C08L27/06C08K13/04C08K7/24C08K2003/385C08K3/34C08K3/04C08K5/12C08K2003/2296
Inventor 陈宗宗
Owner 东莞市鸿韬高分子科技有限公司
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