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A thermoplastic elastomer and its preparation method and molding process for conveyor belt

A thermoplastic elastomer, conveyor belt technology

Active Publication Date: 2016-08-17
ANHUI ZHONGYI RUBBER BELTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During use, it was found that although these flame-retardant conveyor belts containing halogen and antimony have good flame-retardant effects, when a fire breaks out, the burning conveyor belt will produce a large amount of toxic gas and smoke, which hinders the smooth progress of disaster relief work. , causing secondary disasters to life; the second is to corrode equipment and instruments; the third is to cause environmental pollution
Chinese patent CN101096244B discloses a thermoplastic elastomer surface whole-core flame-retardant conveyor belt and its manufacturing method, but the thermoplastic elastomer it invented contains halogen and antimony, and it will produce a large amount of toxic gas and smoke when burned, which is easy to produce secondary disaster

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] This embodiment provides a thermoplastic elastomer material for conveyor belts, which is made of the following raw materials in parts by weight:

[0042] 30 parts of PLLDPE, 50 parts of PNBR, 20 parts of PEVA, 5 parts of zinc oxide, 2 parts of stearic acid, 3 parts of paraffin oil, 5 parts of polyethylene wax, 1.5 parts of sulfur, 1 part of DCP, 0.5 parts of accelerator M, accelerator 1 part of anti-aging agent DM, 1 part of anti-aging agent RD, 1 part of anti-aging agent 2246-S, 1 part of antioxidant 1010, 10 parts of conductive carbon black, 8 parts of nano-silica, 4 parts of antistatic agent P, 40 parts of TCP, hydrogen oxide 20 parts of aluminum, 10 parts of zinc borate, 20 parts of ammonium polyphosphate, 6 parts of epoxy silicone resin, 0.6 parts of silane coupling agent A105;

[0043] The density of PLLDPE is 0.92-0.93g / cm 3 , melt index 2-10g / min; PNBR acrylonitrile content 30-36%, Mooney viscosity value 50-80, release agent is calcium carbonate powder, non-cro...

Embodiment 2

[0057] This embodiment provides a thermoplastic elastomer material for conveyor belts, which is made of the following raw materials in parts by weight:

[0058] 40 parts of PLLDPE, 30 parts of PNBR, 30 parts of PEVA, 3 parts of zinc oxide, 1.5 parts of stearic acid, 1 part of paraffin oil, 4 parts of polyethylene wax, 1 part of sulfur, 2 parts of DCP, 1 part of accelerator CZ, accelerator 0.5 parts of TMTD, 1 part of anti-aging agent A, 1 part of anti-aging agent D, 1 part of antioxidant 1076, 9 parts of conductive carbon black, 9 parts of nano-silica, 5 parts of antistatic agent TM, 50 parts of TBEP, magnesium hydroxide 25 parts, red phosphorus 15 parts, melamine cyanurate 10 parts, epoxy silicone resin 8 parts, silane coupling agent A151 0.8 parts.

[0059] The density of PLLDPE is 0.92-0.93g / cm 3 , Melt index 2-10g / min; PNBR acrylonitrile content 30-36%, Mooney viscosity value 50-80, release agent is talcum powder, non-crosslinking type; PEVA VA content 50%.

[0060] The ...

Embodiment 3

[0062] This embodiment provides a thermoplastic elastomer material for conveyor belts, which is made of the following raw materials in parts by weight:

[0063] 50 parts of PLLDPE, 40 parts of PNBR, 10 parts of PEVA, 4 parts of zinc oxide, 1 part of stearic acid, 2 parts of paraffin oil, 3 parts of polyethylene wax, 1.2 parts of sulfur, 1.5 parts of DCP, 1 part of accelerator CED, accelerator 0.5 parts of TMTD, 1 part of anti-aging agent 2246-S, 1 part of anti-aging agent 4010Na, 1 part of antioxidant 264, 8 parts of conductive carbon black, 10 parts of nano-silica, 5 parts of antistatic agent SA, 60 parts of TOP, boric acid 15 parts of zinc, 15 parts of red phosphorus, 15 parts of ammonium polyphosphate, 10 parts of epoxy silicone resin, 1 part of silane coupling agent A171.

[0064] The density of PLLDPE is 0.92-0.93g / cm 3 , melt index 2-10g / min; PNBR acrylonitrile content 30-36%, Mooney viscosity value 50-80, release agent is mica powder, micro-crosslinked type; PEVA VA co...

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Abstract

The invention discloses a thermoplastic elastomer for conveyor belts, a preparation method thereof and a molding process for conveyor belts, which solves the problem of large smoke generation in the prior art, and is characterized in that the thermoplastic elastomer for conveyor belts is made of polyethylene resin , powdered nitrile rubber, ethylene-vinyl acetate copolymer, zinc oxide, stearic acid, paraffin oil, polyethylene wax, sulfur, dicumyl peroxide, accelerator, anti-aging agent, antioxidant, conductive carbon black , nano-silica, antistatic agent, halogen-free flame retardant plasticizer, halogen-free flame retardant, epoxy silicone resin, silane coupling agent, the amount of smoke is low when burning, and does not contain harmful substances. The epoxy silicone resin thickens the blend, which improves the adhesive performance, flame retardancy and mechanical properties of the blend; the preparation method is simple, easy to manufacture, and low in production cost; it adopts extruder veneer molding, The conveyor belt is produced by the dynamic vulcanization process, which has the advantages of simple process, low energy consumption, high production efficiency and recyclable utilization.

Description

technical field [0001] The invention relates to the field of thermoplastic elastomer materials, in particular to a thermoplastic elastomer material for conveyor belts and a preparation method and molding process thereof. Background technique [0002] Conveyor belt is the main tool for underground coal transportation in coal mines, and its annual consumption is huge. my country's existing conveyor belt production technology still uses a series of complex and backward processes such as rubber mixing, molding, and vulcanization. Compared with foreign advanced conveyor belt products, the quality level is far behind. The application of vulcanized thermoplastic elastomer (TPE) on conveyor belts has achieved great success. Conveyor belts produced with thermoplastic elastomers can use plastic molding processing equipment to bond the covering layer and belt core through extruders and molds, and dynamically vulcanize to achieve continuous production, eliminating the need for rubber mi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/08C08L9/02C08L23/06C08L83/06C08K13/06C08K9/06C08K3/22C08K5/09C08K3/06C08K3/04C08K3/36C08K5/523C08K5/521B29C47/92B29C48/92
CPCB29C48/92C08K2201/001C08K2201/011C08L9/02C08L23/0815C08L2201/02C08L2205/02C08L2205/035C08L23/0853C08L91/06C08L23/06C08L83/06C08K13/06C08K9/06C08K3/36C08K2003/2296C08K5/09C08K3/06C08K5/14C08K3/04C08K2003/2227C08K3/38C08K2003/323C08K2003/2224C08K2003/026
Inventor 宋长江袁陆海魏雪梅宋鑫王从开吕继明李朝红周震宇孙家干
Owner ANHUI ZHONGYI RUBBER BELTS
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