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Heat-resistant rubber coating layer for conveyor roller and preparation method thereof

A heat-resistant rubber and conveyor technology, applied in the direction of conveyor objects, transportation and packaging, rollers, etc., can solve the problem of not solving the use of idlers, and achieve the effect of high promotion and application value

Active Publication Date: 2012-10-17
ANHUI SHENGYUN RUBBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the above technologies can solve certain problems and improve the rollers in terms of anti-corrosion, anti-rust, wear resistance, impact resistance, aging resistance, tear resistance, etc., these technologies still have not solved the problem Problems of using in high temperature environment

Method used

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  • Heat-resistant rubber coating layer for conveyor roller and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] The heat-resistant rubber coating layer material in this embodiment is a heat-resistant rubber compound based on EPDM rubber, and its composition and mass fraction are: EPDM rubber 100, vulcanizing agent 0.5-5 (peroxide or sulfur), accelerator 1-5.5 (tetraethylthiuram disulfide and 1,2-methylenethiourea and N-cyclohexyl-2-benzothiazole sulfenamide and dibutyldithioamino Zinc formate and tetramethylthiuram disulfide are used together), reinforcing agent 50-100 (high wear-resistant carbon black, general-purpose carbon black, fast-extruding carbon black, semi-reinforcing carbon black, two of which can be selected) , plasticizer softener 10-90 (paraffin oil, tricresyl phosphate, one or both can be selected), activator 6-20 (stearic acid plus zinc oxide), antioxidant 2-5 (2- Mercaptobenzothiazole and 2,2,4-trimethyl-1,2-dihydroquinoline, acetone and diphenylamine high-temperature reaction product), filler 10-50 (clay, calcium carbonate, mica powder ).

[0067] Note: For ea...

experiment example 2

[0074] The heat-resistant rubber coating layer material in this embodiment is a heat-resistant rubber material mainly composed of neoprene and natural rubber, and its composition and mass fraction are: 80% neoprene, 20% natural rubber, and 8-10% vulcanizing agent (magnesium oxide + zinc oxide + sulfur), accelerator 0.3-1 (N, N-di-o-tolylthiourea and N-cyclohexyl-2-benzothiazole sulfenamide), reinforcing agent 40-70 ( Gas-mixed carbon black, spray carbon black, high wear-resistant carbon black combined or used alone), plasticizer softener 10-25 (transformer oil, aromatic oil and coumarone resin selected or used together), activator 7-17 (hard fatty acid + zinc oxide), antioxidant 2-5 (2,2,4-trimethyl-1,2,-dihydroquinoline polymer and N-phenyl-a-naphthylamine and N-cyclohexyl- N'-phenyl-p-phenylenediamine, three kinds can be used or two kinds can be selected), filler 10-50 (mica powder, asbestos powder, pottery clay).

[0075] Note: For each compounding agent without a unit des...

Embodiment 3

[0080] The heat-resistant rubber coating layer material in this embodiment is a heat-resistant rubber compound mainly composed of styrene-butadiene rubber, and its composition and mass fraction are: styrene-butadiene rubber 100, vulcanizing agent 0.5-4 (sulfur), accelerator 0.6- 2.5 (dithiodibenzothiazole and tetramethylthiuram disulfide used together), reinforcing agent 40-70 (semi-reinforcing carbon black, high wear-resistant carbon black used together or selected), plasticizer softener 10- 30 (Vaseline, asphalt, coumarone resin, transformer oil, choose two or more), active agent 4-15 (stearic acid plus zinc oxide), anti-aging agent 2-5 (6-ethoxy-2,2 With 4-trimethyl-1,2-dihydroquinoline and N-cyclohexyl-N'-phenyl-p-phenylenediamine and paraffin), filler 10-50 (clay, barium sulfate, magnesium carbonate).

[0081] Note: For each compounding agent without a unit description, it is kg.

[0082] As shown in Figure 1, the preparation of the heat-resistant rubber coating layer of...

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Abstract

The invention discloses a heat-resistant rubber coating layer for a conveyor roller and a preparation method thereof. The heat-resistant rubber coating layer for a conveyor roller is a heat-resistant rubber layer coated outside a roller core, and is prepared from ethylene-propylene-diene monomer rubber, or chloroprene rubber and natural rubber, or styrene-butadiene rubber, or natural rubber whichis used as the matrix material, and active agent, anti-aging agent, accelerator, reinforcing agent, filler, plasticizing and softening agent and vulcanizing agent which used as assistants. The preparation method comprises the steps of rubber processing, roller core treating, forming and direct vulcanizing. The rubber coating layer for a conveyor roller can maintain the original physical and mechanical properties under the action of long-time thermal aging, i.e. can be normally used in a high-temperature environment, effectively overcomes the defect that a common roller can not be normally used in a high-temperature environment, fills up the blank in heat-resistant rollers used on conveyors in metallurgy, mining, wharfs and the like, and satisfies the user requirements.

Description

technical field [0001] The invention relates to the technical field of conveyors, in particular to a heat-resistant rubber coating layer of a conveyor roller and a preparation method thereof. Background technique [0002] Generally, the rubber coating layer of conveyor rollers made of ordinary rubber materials will have a significant decrease in mechanical strength and physical properties in a high-temperature environment, and it is easy to be brittle, thus losing its use value. At present, the rubber coating layer of ordinary rollers used at a temperature below 70°C will age, become sticky, lose elasticity and stress, and its tensile strength will decrease by about 30%, and its elongation at break will decrease by about 40%. Rise of about 15%, very unsuitable for use in high temperature environment. [0003] After searching, it is found that the Chinese patent title is: Rubber idler for belt conveyor and its manufacturing method, application number: 200710053813.7, applica...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/16C08L11/00C08L7/00C08L9/06C08K13/02C08K5/14C08K3/06C08K3/22C08K3/04B29C35/02B29B7/02B65G39/06
Inventor 詹莹青梅松桂刘益付
Owner ANHUI SHENGYUN RUBBER