Protective rubber sleeve for low-temperature container junction valves

A low-temperature container and rubber sleeve technology, applied in the field of low-temperature materials, can solve problems such as brittleness, limited low-temperature resistance, and poor low-temperature resistance

Inactive Publication Date: 2018-12-07
HEFEI ZHENXUN LOW TEMPERATURE TECH CO LTD
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the low temperature resistance of rubber materials is generally poor. Low temperature environment will cause embrittlement of rubber materials, reduce the elasticity, deformation recovery force and tensile strength of rubber materials, and make rubber materials easy to be brittle when subjected to external forces.
[0007] Patent application number 201511014652.1 discloses...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A protective rubber sleeve for a connecting valve of a low-temperature container. According to the parts by mass, the protective rubber sleeve includes the following components: 30 parts of butyl rubber, 35 parts of cold-resistant modified natural rubber, 10 parts of fluorosilicone rubber, and chlorosulfonated polyethylene 10 parts of elastomer, 8 parts of hydroxypropyl methacrylate, 8 parts of carbon black, 6 parts of nano-zinc oxide, 2 parts of stearic acid, 2 parts of vulcanizing agent, 1.5 parts of accelerator, 2 parts of silane coupling agent, anti-aging agent 1.2 servings.

[0033] The preparation method of cold-resistant modified natural rubber in the present embodiment is:

[0034] (1) According to the mass parts, 200 parts of purified latex, 7.2 parts of 10wt% polyoxyethylene lauryl ether sodium sulfate aqueous solution, 15 parts of 30wt% sodium hydroxide solution and 100 parts of deionized water were added to the reaction kettle , continuously stirred at a sp...

Embodiment 2

[0047] A protective rubber sleeve for a connecting valve of a low-temperature container. According to the parts by mass, the protective rubber sleeve includes the following components: 35 parts of butyl rubber, 40 parts of cold-resistant modified natural rubber, 16 parts of fluorosilicone rubber, and chlorosulfonated polyethylene 15 parts of elastomer, 10 parts of hydroxypropyl methacrylate, 13 parts of carbon black, 9 parts of nano-zinc oxide, 4 parts of stearic acid, 3 parts of vulcanizing agent, 2.3 parts of accelerator, 2.6 parts of silane coupling agent, anti-aging agent 1.8 servings.

[0048] The preparation method of cold-resistant modified natural rubber in the present embodiment is:

[0049] (1) According to the mass parts, 200 parts of purified latex, 7.2 parts of 10wt% polyoxyethylene lauryl ether sodium sulfate aqueous solution, 15 parts of 30wt% sodium hydroxide solution and 100 parts of deionized water were added to the reaction kettle , continuously stirred at ...

Embodiment 3

[0062] A protective rubber sleeve for a connecting valve of a low-temperature container. According to the parts by mass, the protective rubber sleeve includes the following components: 33 parts of butyl rubber, 38 parts of cold-resistant modified natural rubber, 14 parts of fluorosilicone rubber, and chlorosulfonated polyethylene 13 parts of elastomer, 9 parts of hydroxypropyl methacrylate, 11 parts of carbon black, 7.5 parts of nano zinc oxide, 2.5 parts of stearic acid, 2.6 parts of vulcanizing agent, 1.9 parts of accelerator, 2.3 parts of silane coupling agent, anti-aging agent 1.6 servings.

[0063] The preparation method of cold-resistant modified natural rubber in the present embodiment is:

[0064] (1) According to the mass parts, 200 parts of purified latex, 7.2 parts of 10wt% polyoxyethylene lauryl ether sodium sulfate aqueous solution, 15 parts of 30wt% sodium hydroxide solution and 100 parts of deionized water were added to the reaction kettle , continuously stirre...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Particle sizeaaaaaaaaaa
Login to view more

Abstract

The invention relates to the technical field of low-temperature materials, specifically to a protective rubber sleeve for low-temperature container junction valves. The material of the protective rubber sleeve comprises the following ingredients: butyl rubber, cold-resistant modified natural rubber, fluorinated silicone rubber, a chlorosulfonated polyethylene elastomer, hydroxypropyl methacrylate,carbon black, nano-zinc oxide, stearic acid, a vulcanizing agent, a promoter, a silane coupling agent and an anti-aging agent, wherein the vulcanizing agent used in the ingredients is sulphur; the promoter is one of a promoter TE, a promoter ZIP and a promoter NA-22; and the anti-aging agent is a mixture of an anti-aging agent AW and an anti-aging agent PPD mixed according to the mass ratio of 1:3. The protective rubber sleeve is prepared from a low temperature resistant rubber material. By a new formula for preparation of the low temperature resistant rubber, brittle transition temperature of the material is remarkably reduced.

Description

technical field [0001] The invention relates to the technical field of cryogenic materials, in particular to a protective rubber sleeve for a connecting valve of a cryogenic container. Background technique [0002] Cryogenic pressure vessel refers to a pressure vessel whose wall temperature is below -20°C during operation. Containers for storage and transportation of liquefied ethylene, liquefied natural gas, liquid nitrogen and liquid hydrogen are all low-pressure containers. The vast majority of pressure vessels are made of tailor-welded steel plates. During the manufacturing process, the steel plate is subject to cold and hot processing and welding, so the pressure vessel steel is required to have good process performance, and it is required to have a certain strength and sufficient toughness to withstand external loads under normal working conditions without brittle failure. Pressure vessel steel develops low alloy steel on the basis of carbon steel. The carbon conten...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C08L15/00C08L23/22C08L83/08C08L23/34C08K13/02C08K3/22C08K5/09C08K3/04
CPCC08K2003/2296C08K2201/011C08L15/00C08L2201/08C08L2205/035C08L23/22C08L83/08C08L23/34C08K13/02C08K3/22C08K5/09C08K3/04
Inventor 周青松
Owner HEFEI ZHENXUN LOW TEMPERATURE TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap