Memory rubber with high cohesiveness as well as preparation method and application thereof

A cohesive, rubber-based technology, applied in mechanical equipment, pipelines to prevent damage/abrasion, pipeline protection, etc., can solve problems such as poor viscosity of memory rubber, gas leakage, easy to break, etc., to achieve good wear resistance and elasticity , improve adhesion, improve the effect of wear resistance

Pending Publication Date: 2022-04-22
宁波磐固工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing gas pipes are generally made of steel pipes, and temperature changes will cause expansion or contraction of the pipes. If the weather is cold, the gas pipes will shrink. At this time, the surface of the gas pipes is relatively brittle, and it is prone to rupture, resulting in gas leakage. The gas pipeline needs to be replaced; for this reason, the gas company usually puts a protective sleeve on the gas pipeline to protect the gas pipeline
[0004] The existing protective cover is generally memory rubber, which has better elasticity and can prevent the gas pipeline from shrinking to a certain extent, but the memory rubber has poor viscosity, and the rubber cover needs to be fixed on the pipe with auxiliary tools such as tape, and the tape is easy to Aging causes the rubber to separate from the gas pipeline, resulting in poor fixing effect of the rubber, and the gas pipeline is easily affected by the environment; therefore, rubber with better adhesion is required to be set on the gas pipeline to realize the protection of the gas pipeline

Method used

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  • Memory rubber with high cohesiveness as well as preparation method and application thereof
  • Memory rubber with high cohesiveness as well as preparation method and application thereof
  • Memory rubber with high cohesiveness as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] A preparation method of memory rubber with high cohesiveness, comprising the following steps:

[0054] Put 20 parts of rubber and 10 parts of polycarbonate into a horizontal mixer, and stir for 1 hour at a speed of 40r / min to obtain a mixture; put 1 part of antioxidant 1010 and 5 parts of terpene resin into a horizontal mixer at an internal speed of Stir at a speed of 60r / min for 1 hour, and extrude through an extruder to obtain an extrudate; put 1 part of sulfur and 1 part of stearic acid and the extrudate into a rubber injection molding machine for vulcanization, cool for 2 hours, and obtain a memory rubber.

Embodiment 2

[0056] A preparation method of memory rubber with high cohesiveness, comprising the following steps:

[0057] Put 20 parts of rubber and 10 parts of polycarbonate into a horizontal mixer, and stir for 1 hour at a speed of 40r / min to obtain a mixture; put 1 part of antioxidant DLTP and 5 parts of rosin glyceride into a horizontal mixer at an internal speed of Stir at a speed of 60r / min for 1 hour, and extrude through an extruder to obtain an extrudate; put 1 part of sulfur and 1 part of stearic acid and the extrudate into a rubber injection molding machine for vulcanization, cool for 2 hours, and obtain a memory Rubber; Wherein, rubber is modified natural rubber, and modified natural rubber is prepared by the following steps:

[0058] S1: Add 30 parts of natural rubber, 5 parts of EPDM rubber and 10 parts of butyl rubber into 50 parts of butyl acrylate, heat and stir for 2 hours at a temperature of 50 ° C and a speed of 30 r / min to obtain a stirred thing;

[0059] S2: Mix 10 ...

Embodiment 3

[0062] A preparation method of memory rubber with high cohesiveness, comprising the following steps:

[0063] Put 20 parts of rubber and 10 parts of polycarbonate into a horizontal mixer, and stir for 1 hour at a speed of 40r / min to obtain a mixture; put 1 part of antioxidant 1010 and 5 parts of polyethylene into a horizontal mixer with an internal speed of Stir at a speed of 60r / min for 1 hour, and extrude through an extruder to obtain an extrudate; put 1 part of sulfur and 1 part of stearic acid and the extrudate into a rubber injection molding machine for vulcanization, and cool for 2 hours to obtain a memory rubber ; Wherein, rubber is modified natural rubber, and modified natural rubber is prepared by the following steps:

[0064] S1: Add 30 parts of natural rubber, 5 parts of EPDM rubber and 10 parts of butyl rubber into 50 parts of butyl acrylate, heat and stir for 2 hours at a temperature of 50 ° C and a speed of 30 r / min to obtain a stirred thing;

[0065] S2: Mix 1...

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Abstract

The invention discloses memory rubber with high cohesiveness as well as a preparation method and application of the memory rubber. The memory rubber is prepared from the following raw materials in parts by weight: 20-40 parts of rubber; 10 to 20 parts of polycarbonate; 1-2 parts of an antioxidant; 5 to 8 parts of a tackifier; 1-5 parts of stearic acid; and 1-5 parts of sulfur. The memory rubber has the effect of improving the cohesiveness of the memory rubber.

Description

technical field [0001] The present application relates to the field of rubber, in particular to a memory rubber with high cohesiveness and its preparation method and application. Background technique [0002] The gas pipeline is connected by connecting pipes and valves to form a fluid device for transporting gas, liquid or solid particles. The daily gas supply to residents’ lives is realized through gas pipeline transportation. The gas supply system in cities and towns is usually carried out by laying various gas pipelines. Gas delivery to form a complete gas delivery system. [0003] Existing gas pipes are generally made of steel pipes, and temperature changes will cause expansion or contraction of the pipes. If the weather is cold, the gas pipes will shrink. At this time, the surface of the gas pipes is relatively brittle, and it is prone to rupture, resulting in gas leakage. The gas pipeline needs to be replaced; for this reason, the gas company usually puts a protective...

Claims

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Application Information

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IPC IPC(8): C08L7/00C08L23/16C08L23/22C08L69/00C08L33/08C08L93/04C08K5/372C08K5/09C08K3/06C08K3/08C08L23/06C08K5/134F16L57/02F16L57/06
CPCC08L7/00F16L57/02F16L57/06C08L2201/12C08L2203/18C08L23/16C08L23/22C08L69/00C08L33/08C08L93/04C08K5/372C08K5/09C08K3/06C08K3/08C08L23/06C08K5/1345Y02T10/86
Inventor 史善松
Owner 宁波磐固工程技术有限公司
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