Environmentally friendly, high and low temperature resistant, oil resistant, wear resistant and fire retardant rubber plastic composition

A composition, rubber and plastic technology, applied in the field of rafter plastic composition, can solve the problems of poor wear resistance and high temperature resistance, unfavorable environment, unable to meet the requirements of long-term high temperature oil immersion performance, etc., and achieve good flame retardancy, wear resistance, etc. Excellent performance and color tunable effects

Active Publication Date: 2012-06-13
JIANGSU DEWEI ADVANCED MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the traditional NBR / PVC blending system has complex processing technology, and generally needs to add reinforcing agent carbon black, otherwise the mechanical properties are not good, such as the oil-resistant and low-temperature resistant rubber-plastic composition disclosed in Chinese patent publication CN101353451A and the resistance for electric wire and cable disclosed in CN102050971A. Combustion thermosetting nitrile polyvinyl chloride rubber
The wear resistance and high temperature resistance of the traditional system is not good. Generally, it can only meet the short-term low temperature oil resistance performance, and cannot meet the long-term high temperature oil immersion performance requirements at 105 ° C.
Traditional flame retardant NBR / PVC blending system, if the environment-friendly magnesium-aluminum flame retardant system is used, more flame retardant additions (generally 50-70 parts) are required, resulting in increased costs; while non-environmental protection flame retardants are used Although the amount can be less, it is not good for the environment

Method used

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  • Environmentally friendly, high and low temperature resistant, oil resistant, wear resistant and fire retardant rubber plastic composition
  • Environmentally friendly, high and low temperature resistant, oil resistant, wear resistant and fire retardant rubber plastic composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The present embodiment provides a kind of rubber-plastic composition, and its preparation method is as follows:

[0023] (1), prepare NBR powder: take by weight 100 parts of NBR with acrylonitrile content of 35wt%, 0.2 part of sulfur, 1.0 part of antioxidant 4010NA, 1.0 part of activator stearic acid, 0.5 part of vulcanization accelerator TMTD. Put it into the internal mixer for mixing and grinding, and add 1.03 parts of release agent PVC resin after discharging, of which: the internal mixer is 50 liters, the mixing and grinding temperature, the control temperature does not exceed 170 ° C, and the mixing time is 10 minutes ;

[0024] (2) Preparation of pre-plasticized PVC powder: Weigh PVC resin K: 65100 parts, add to a high-speed mixer, add 10 parts of plasticizer DIDP, 2.0 parts of calcium zinc stabilizer, 10100.3 parts of antioxidant, knead to 135 ° C, The material is discharged for use, wherein the high-speed mixer refers to a 100-liter stirring mixer, which operat...

Embodiment 2

[0028] The present embodiment provides a kind of rubber-plastic composition, and its composition is as follows: 45 parts of NBR powder, 35 parts of premolded PVC powder, 10 parts of PA (copolymerized by nylon 6,66,1010 by mass ratio 70:20:10) , 10 parts of magnesium hydroxide, 10 parts of antimony trioxide, 0.5 parts of ACR40 and 0.5 parts of oxidized polyethylene wax. The weight ratio of the NBR powder is: NBR 96% with acrylonitrile content of 35wt%, vulcanizing agent sulfur 0.3%, activator stearic acid 1%, anti-aging agent 4010NA 1%, vulcanization accelerator TMTD 0.7% and release agent 1% PVC resin; the composition weight ratio of the pre-molded PVC powder is: PVC resin K: 6583.75%, antioxidant 10100.34%, calcium zinc stabilizer 3.35% and plasticizer DIDP 12.56%.

[0029] The preparation method of the rubber-plastic composition of this embodiment is the same as that of Embodiment 1.

Embodiment 3

[0031]The present embodiment provides a rubber-plastic composition, its composition is as follows: 50 parts of NBR powder, 30 parts of premolded PVC powder, 15 parts of PA (copolymerized by nylon 6,66,1010 in a mass ratio of 70:20:10) , 15 parts of magnesium hydroxide, 5 parts of antimony trioxide, 0.5 parts of ACR40 and 0.5 parts of oxidized polyethylene wax. Wherein the composition weight ratio of NBR powder is: the NBR 95.75% that acrylonitrile content is 35wt%, vulcanizing agent sulfur 0.38%, activator stearic acid 0.956%, antioxidant 4010NA 0.957%, vulcanization accelerator TMTD0.957% and isolation Agent PVC resin 1%. The composition weight ratio of the preplasticized PVC powder is: PVC resin K: 6579%, antioxidant 10100.5%, calcium zinc stabilizer 6.3% and plasticized DIDP 14.2%.

[0032] The preparation method of the rubber-plastic composition of this embodiment is the same as that of Embodiment 1.

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PUM

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Abstract

The invention relates to a rubber plastic composition, which is made from the following components of: by weight, 40-50 parts of an acrylonitrile butadiene rubber powder, 30-40 parts of a preplastic polrvinyl chloride powder, 5-15 parts of ternary copolymerized polyamide, 5-15 parts of magnesium hydroxide, 5-15 parts of antimonous oxide and 0.5-1.5 parts of a processing aid. The acrylonitrile butadiene rubber powder is made from components of: by weight, 90-98% of nitrile rubber, 0.15-1% of a vulcanizator, 0.5-3% of an anti-aging agent, 0.5-3% of an activating agent, 0.3-3% of a vulcanizationaccelerator and 0.5-1.2% of an isolating agent. The preplastic polrvinyl chloride powder is made from components of: by weight, 75-90% of a PVC resin, 0.2-1% of an antioxidant, 1-8% of a calcium zincstabilizer and 8-18% of a plasticizer DITDP diisotridecyl phthalate. The composition provided by the invention has excellent high and low temperature resistance, oil resistance, wear resistant and fire retardant performance. In addition, raw materials which are not environmentally friendly are not used. Therefore, the invention is especially applicable to be used as a sheathing compound for wire and cable.

Description

technical field [0001] The invention relates to a rafter-plastic composition, which can be used, for example, as a sheathing material for electric wires and cables. Background technique [0002] Due to the cold and oil-resistant flame-retardant sheathing materials are often used in harsh environmental conditions, such as high temperature, strong ultraviolet radiation, high ozone concentration, chemical corrosion and other conditions, in some places, the highest temperature can exceed 100 ° C, if the cable If the above-mentioned requirements are not met, the cable material is fragile and may even decompose the cable sheath layer. All these situations will directly increase the occurrence of fire or casualties, and the risk of cable short circuit will also increase. Nitrile rubber (NBR), as a copolymer rubber of butadiene and acrylonitrile, has the advantages of excellent oil resistance, aging resistance and wear resistance. And because there are polar groups in the NBR molec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08L27/06C08L77/00C08K13/02C08K3/22C08K3/06C08K5/09C08K5/18B29C47/92B29C48/92
CPCB29C48/40
Inventor 张建耀周建明栾珊珊戴红兵陈敏张丽本
Owner JIANGSU DEWEI ADVANCED MATERIALS
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