Millable polyurethane rubber for spinning cot and preparation method thereof

A technology of polyurethane compound rubber and kneading type polyurethane is applied in the field of polyurethane compound rubber for spinning rubber rollers and its preparation, which can solve the problems of different physical and mechanical properties of vulcanized rubber, difference in use effect and service life, etc., and achieve excellent elasticity , maintain stability and long service life

Inactive Publication Date: 2009-11-18
广州海丝尔橡塑科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method adopts isocyanate as the main vulcanizing agent to make the spinning rubber roller, which is obviously different from the present invention in the type and proportion of the compounding agent, and the cross-linking bonds generated by the reaction with rubber are also different, and the physical and mechanical properties of the vulcanized rubber are also different. There are also differences in the use effect and service life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Weigh 100 parts of mixing type polyurethane rubber, 10 parts of white carbon black, 20 parts of dioctyl phthalate, 5 parts of (3-lauryl amidopropyl) trimethylammonium methyl sulfate, dibutyldialkyltoluene 2 parts, 3 parts of pigment, 5 parts of dicumyl peroxide, 1.6 parts of N, N'-m-phenylene bismaleimide, 2 parts of mixture of fatty acid and isoalkane wax, add the above-mentioned weighed materials The rubber mixer is used for mixing, so that the materials are evenly dispersed to obtain the mixed rubber.

[0029] Extrude, vulcanize and form the rubber compound obtained above to obtain a spinning cot, and the hardness of the cot is measured to be 65±2 degrees (Shore A).

Embodiment 2

[0031] Weigh 100 parts of mixing polyurethane rubber, 25 parts of activated clay, 10 parts of dibutyl diglyceride adipate, 3 parts of composite surfactant AT-P5 (purchased from Jiannuo Polymer Materials Research Institute), styrene 2 parts of phenol, 3 parts of pigment, 2.5 parts of 1,1-bis(tert-butylperoxy)cyclohexane, 1.55 parts of triallyl cyanurate, 2 parts of stearic acid, the above-mentioned The materials are added to the rubber mixer for mixing, so that the materials are evenly dispersed to obtain the mixed rubber.

[0032] Extrude, vulcanize and form the rubber compound obtained above to obtain a spinning cot, and the hardness of the cot is measured to be 60±2 degrees (Shore A).

Embodiment 3

[0034] Weigh 100 parts of mixing type polyurethane rubber, 40 parts of activated clay, 25 parts of polyether plasticizer TP-90B (purchased from Rohm and Haas Company of the United States), 3082 parts of antistatic agent, 3 parts of dibutylene toluene, 5 parts of pigment, 5 parts of 1,4-bis-tert-butylperoxycumene, 5 parts of trimethylolpropane trimethacrylate, 0.5 part of stearic acid, add the above-mentioned materials into the rubber mixer Mixing is carried out so that the materials are uniformly dispersed to obtain a mixed rubber.

[0035] Extrude, vulcanize and form the rubber compound obtained above to obtain a spinning cot, and the hardness of the cot is measured to be 67±2 degrees (Shore A).

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PUM

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Abstract

The invention discloses millable polyurethane rubber for a spinning cot, which consists of the millable polyurethane rubber, a reinforcing filler, a plasticizer, an antistatic agent, a protective agent, pigment, a cross linking agent, a cross-linking assistant agent and a processing agent. The millable polyurethane rubber adopts peroxide as a main vulcanizing system and overcomes the defects of large dynamic heat generation and large permanent deformation; the antistatic agent contained in the millable rubber has good conduction and excellent anti-entangling performance; and the spinning cot made of the millable polyurethane rubber is free of surface treatment, is not deformed and durable in use, does not absorb any coating and cleaning agent, can obviously improve yarn quality and keep the stability of the yarn quality, also can adapt to the change of humiture for normal production, has the characteristics of good elasticity, wear resistance, good weather resistance and spinning ability, long service life and the like, has environmental protection and energy conservation, contributes to managing spinning enterprises and reducing cost of a ton of yarns, and lays a good foundation for meeting the technological requirements of heavy ingot, heavy press and high draft.

Description

technical field [0001] The invention belongs to the technical field of rubber compound formulations for spinning rubber rollers, and in particular relates to a polyurethane rubber compound for spinning rubber rollers and a preparation method thereof. Background technique [0002] The spinning cots commonly used in spinning companies are mostly made of nitrile rubber or hydroxynitrile rubber as the main material with a variety of compounding agents. Due to the wear resistance of nitrile rubber or carboxylated nitrile rubber , weather resistance and elasticity are relatively poor. In order to meet the requirements of different spinning processes in use, physical and chemical treatments must be carried out on the surface of the rubber rollers, and a rubber roller type corresponds to a spinning type and yarn count. During the spinning process It is necessary to replace the corresponding types of rubber rollers according to the types of spinning, and it is difficult to adapt to t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/04C08K13/02C08K13/06C08K5/14
Inventor 邹明清李彦均邱劲东
Owner 广州海丝尔橡塑科技有限公司
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