Clay rubber nano-composite material used for cover layer of conveyor belt and preparation method thereof

A technology of rubber nano and composite materials, which is applied in the direction of conveyor, transportation and packaging, etc., to achieve the effect of improving service life, improving tensile strength and not being easy to age

Active Publication Date: 2012-06-27
WUXI BOTON CONVEYOR SOLUTION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the product has higher strength at low temperature and will not produce cracks or brittle fractures, which overcomes the shortcomings of conveyor belts that cannot be used due to low temperature brittle cracks in cold areas.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] On the double-roll mill, add nano-clay / natural rubber masterbatch (Siping City, Jilin Province Liufang Mining Co., Ltd.) and 40 parts of butadiene rubber (BR9000) that contain 1 part of nano-clay, 60 parts of natural rubber and carry out mastication, then Add 3 parts of zinc oxide and 1 part of stearic acid, 1 part of 2,2,4-trimethyl-1,2-dihydroquinoline (RD), N-isopropyl-N`-phenyl p-phenyl 1 part of diamine (4010NA), 2 parts of solid silane coupling agent, 40 parts of carbon black N115, mixed once, after 12 hours of parking, add cross-linking agent and auxiliary cross-linking agent: 1 part of sulfur and 2, 2' - 2 parts of dithiodibenzothiazole (DM), mixed uniformly on an open mill for 2 minutes to obtain a second-stage rubber compound.

[0026] The vulcanization is carried out on a flat vulcanizer, the vulcanization temperature is 150°C, and the vulcanization pressure is 10MPa. The physical and mechanical properties of the covering rubber are shown in Table 1.

Embodiment 2

[0028]On the double-roll mill, add nano-clay / natural rubber masterbatch (Liu House Mining Co., Ltd., Siping City, Jilin Province) that contains 5 parts of nano-clay, 80 parts of natural rubber, 10 parts of styrene-butadiene rubber (SBR1502) and butadiene rubber ( BR9000) 10 parts for masticating, then add 5 parts of zinc oxide and 2 parts of stearic acid, 1 part of 2,2,4-trimethyl-1,2-dihydroquinoline (RD), N-(4 - 1 part of anilinophenyl) maleimide (MC), 3 parts of solid silane coupling agent, 50 parts of carbon black N220, carry out a mixing, stop for 12 hours, add crosslinking agent and co-crosslinking agent 2 parts: 2 parts of sulfur and 2 parts of 4,4 `-dimorpholine disulfide (DTDM), mix uniformly on an open mill to obtain a two-stage rubber compound.

[0029] The vulcanization is carried out on a flat vulcanizer, the vulcanization temperature is 150°C, and the vulcanization pressure is 10MPa. The physical and mechanical properties of the covering rubber are shown in Tabl...

Embodiment 3

[0031] On the double-roll mill, add 380g of nanoclay / natural rubber masterbatch containing 8 parts of nanoclay and 100 parts of natural rubber, 10 parts of styrene-butadiene rubber (SBR1502) and 30 parts of butadiene rubber (BR9000) for mastication, and then successively Add 5 parts of zinc oxide and 2 parts of stearic acid, 1 part of N-(4-anilinophenyl)maleimide (MC), 1 part of N-isopropyl-N`-phenyl-p-phenylenediamine (4010NA ) 1 part, 3 parts of solid silane coupling agent, 60 parts of carbon black N330, mixed once, and after standing for 12 hours, add crosslinking agent and auxiliary crosslinking agent: 2 parts of sulfur and 4,4`-disulfide 2 parts of morpholine (DTDM), mixed uniformly on an open mill to obtain a two-stage rubber compound.

[0032] The vulcanization is carried out on a flat vulcanizer, the vulcanization temperature is 150°C, and the vulcanization pressure is 10MPa. The physical and mechanical properties of the covering rubber are shown in Table 1.

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Abstract

The invention relates to a clay rubber nano-composite material used for the cover layer of a conveyor belt and a preparation method thereof. The material can be used to support the use of various large carrying capacity and long distance conveyors, and is widely used in metallurgy, mining, ports and other heavy industries. The preparation method of the clay rubber nano-composite material used forthe cover layer of a conveyor belt comprises: taking nano-clay and natural rubber to prepare nano-clay/natural rubber nano-composite masterbatch through an emulsion flocculation method, then adding synthetic rubber for plasticating, and then adding zinc oxide, stearic acid, an age resister, a coupling agent, and a reinforcing agent in order for first mixing, and adding sulphur as well as an accelerator for second mixing so as to obtain the product. The cover rubber of a conveyor belt manufactured with the clay rubber nano-composite material, and can have improved tensile strength, tearing resistance and shearing resistance, so that the service life of the conveyor belt can be prolonged. In the preparation process, the employment of a small amount of nano-clay and a lot of carbon black together to serve as a filling system can have an enhancing effect, and besides, the lamellar structure of the nano-clay can effectively inhibit gas and heat transfer, thus improving the thermo-oxidativeaging resistance, and making the conveyor belt difficult to age when used in an open-air environment for a long time.

Description

technical field [0001] The invention relates to a clay-rubber nano-composite material for a conveyor belt covering layer and a preparation method thereof, which can be matched with various large-capacity and long-distance conveyors and widely used in heavy industries such as metallurgy, coal mines, and ports. Background technique [0002] With the development of the world economy and the improvement of the level of industrial automation, the application of conveyor belts is becoming wider and wider, the demand is increasing, and the requirements are getting higher and higher. Mining, building materials, chemical industry, port, food, electric power and coal departments have put forward new requirements for material transportation: long distance (referring to the length of a single machine, up to 15000m abroad, up to 8984m in China), large capacity (high Belt speed and large bandwidth) and large inclination (>15°). In order to meet the high-strength requirements, natural ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L9/06C08L9/00C08K13/02C08K3/34C08K3/04C08K3/06C08K3/22C08J3/22B65G15/32
Inventor 萨日娜张立群田明吴建国袁佳春
Owner WUXI BOTON CONVEYOR SOLUTION CO LTD
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