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Phase-change high-tear-strength rubber and preparation method thereof

A high tear strength and phase change technology, applied in the field of rubber preparation, can solve the problems of natural rubber performance decline, failure, easy tearing, etc., to achieve extended service life, effective tear protection, improved tensile strength and resistance The effect of tearing properties

Inactive Publication Date: 2021-02-23
黄泽恩
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, as the current natural rubber is used over time and the use environment is increasingly harsh, the existing tensile strength and tear resistance far meet the needs. In some special environments, natural rubber is still prone to tearing , leading to a further decline in the performance of natural rubber or even complete failure

Method used

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  • Phase-change high-tear-strength rubber and preparation method thereof
  • Phase-change high-tear-strength rubber and preparation method thereof
  • Phase-change high-tear-strength rubber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] see figure 1 , a phase change type high tear strength rubber, comprising the following raw materials in parts by weight: 100 parts of natural rubber latex in dry rubber, 40 parts of styrene-butadiene rubber, 40 parts of butadiene rubber, 6 parts of zinc oxide, stearic acid 4 parts, 2 parts of rubber protective wax, 3 parts of anti-aging agent, 3 parts of vulcanizing agent, 1 part of accelerator, 30 parts of carbon black, 2 parts of polypropylene fiber, 10 parts of tear-resistant resin and 115 parts of phase change anti-overextension rod .

[0043] Antiaging agent is antiaging agent RD.

[0044] The vulcanizing agent is sulfur, and the sulfur content in the sulfur is ≥95wt%.

[0045] The accelerator is accelerator DM.

[0046] see Figure 2-3 The phase change anti-overstretching rod 1 includes an outer follower sleeve 11, a plurality of stretch sensing rods 12 and a feedback insert rod 13 embedded in the outer follower sleeve 11, and a plurality of stretch sensing ro...

Embodiment 2

[0057] A phase change type high tear strength rubber, comprising the following raw materials in parts by weight: 110 parts of natural rubber latex in dry rubber, 50 parts of styrene-butadiene rubber, 50 parts of butadiene rubber, 8 parts of zinc oxide, 6 parts of stearic acid 3 parts, 3 parts of rubber protective wax, 3.5 parts of anti-aging agent, 4 parts of vulcanizing agent, 2 parts of accelerator, 40 parts of carbon black, 2.5 parts of polypropylene fiber, 15 parts of tear-resistant resin and 120 parts of phase change anti-overstretching rod.

[0058] The rest are consistent with Example 1.

Embodiment 3

[0060] A phase change type high tear strength rubber, comprising the following raw materials in parts by weight: 120 parts of natural rubber latex in dry rubber, 60 parts of styrene-butadiene rubber, 60 parts of butadiene rubber, 10 parts of zinc oxide, 8 parts of stearic acid parts, 4 parts of rubber protective wax, 4 parts of anti-aging agent, 6 parts of vulcanizing agent, 3 parts of accelerator, 50 parts of carbon black, 3 parts of polypropylene fiber, 20 parts of tear-resistant resin and 125 parts of phase change anti-overextension rod.

[0061] The rest are consistent with Example 1.

[0062] The present invention can realize the introduction of part of the reinforcing raw material and the phase change anti-overstretching rod 1 in natural rubber, which can significantly improve the tensile strength and tear resistance of rubber products, and the phase change anti-overstretching rod 1 is not damaged under normal conditions. It will not affect the elasticity and other prope...

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Abstract

The invention discloses phase-change high-tear-strength rubber and a preparation method thereof, belonging to the technical field of rubber preparation. According to the invention, a part of reinforcing raw materials and a phase-change anti-hyperextension rod are introduced into natural rubber to remarkably improve the tensile strength and tear resistance of a rubber product; tensile strength is sensed through a tensile sensing rod on the phase-change anti-hyperextension rod after the rubber product is stretched, the stretching effect is transmitted to an internal magnetic control ball, the magnetic control ball is promoted to gradually release a magnetic field, the magnetic field strength is in direct proportion to stretching of the rubber product, and after the tensile strength reaches acertain value, the magnetic control ball can release a magnetic field large enough, so in a part of areas of a feedback embedded rod at the center, a mobile phase similar to liquid is forced to be converted into a solid phase; and thus, the rubber product is assisted in resisting tensile force, the phenomenon that the tensile force seriously exceeds the tearing resistance limit of the rubber product is avoided, effective tearing protection is achieved for the rubber product, and the service life of the rubber product is greatly prolonged.

Description

technical field [0001] The invention relates to the technical field of rubber preparation, in particular to a phase-change high-tear strength rubber and a preparation method thereof. Background technique [0002] Rubber (Rubber) refers to a highly elastic polymer material with reversible deformation. It is elastic at room temperature, can produce large deformation under a small external force, and can return to its original shape after the external force is removed. Rubber is a completely amorphous polymer with a low glass transition temperature and often a large molecular weight, greater than hundreds of thousands. [0003] Rubber is divided into two kinds of natural rubber and synthetic rubber. Natural rubber is processed by extracting gum from rubber trees, rubber grass and other plants; synthetic rubber is obtained by polymerization of various monomers. Rubber products are widely used in all aspects of industry or life. [0004] Natural rubber has high tensile strengt...

Claims

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Application Information

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IPC IPC(8): C08L7/02C08L9/06C08L9/00C08L23/12C08K13/02C08K3/22C08K5/09C08K3/06C08K3/04B29B15/02B29B15/00
CPCB29B15/00B29B15/02C08K2003/2296C08L7/02C08L2205/02C08L2205/035C08L2205/16C08L9/06C08L9/00C08L23/12C08K13/02C08K3/22C08K5/09C08K3/06C08K3/04
Inventor 黄泽恩
Owner 黄泽恩
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