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Rubber for low-temperature resistant rubber hose for refrigerator

A technology of low temperature resistance and refrigerator, applied in the rubber field, can solve the problems of poor low temperature performance and brittleness of rubber, and achieve the effect of increasing low temperature softener and reducing low temperature brittleness

Inactive Publication Date: 2013-03-27
XIAN ZHITAI RUBBER & PLASTIC IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the poor low-temperature performance of rubber in the existing rubber hoses for refrigerators, the rubber hoses for refrigerators are brittle at low temperatures.

Method used

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  • Rubber for low-temperature resistant rubber hose for refrigerator
  • Rubber for low-temperature resistant rubber hose for refrigerator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1 Its rubber raw material proportioning is: 20 parts of 1# natural rubber, 80 parts of 1502 type styrene-butadiene rubbers, 0.9 part of sulfur, 4 parts of zinc oxides, 1 part of stearic acid, 60 parts of spray carbon blacks, ortho-dibutyl 15 parts of ester, NOBS accelerator (Chinese name: N-(oxyethylene)-2-benzothiazole sulfenamide, molecular formula: C 11 h 12 N 2 S 2 O) 2 parts, 4010 anti-aging agent (Chinese name: N-phenyl-N'-cyclohexyl-p-phenylenediamine, molecular formula: C15H18N2) 2 parts. The weight unit of each part in the component is determined according to production needs, such as 1 kilogram per part.

[0021] The specific production steps are as follows:

[0022] Compound production

[0023] ⑴ Weigh various ingredients according to the specific formula ratio;

[0024] (2) Add 20 parts of 1# natural rubber and 80 parts of 1502 type styrene-butadiene rubber to the rubber mixer and mix for 2 minutes. After mixing for 2 minutes, add 0.9 parts ...

Embodiment 2

[0032] The production process of embodiment 2 is identical with embodiment 1, and difference is that the rubber material component ratio is different, and the rubber material composition of embodiment 2 is calculated as follows by component: 1# natural rubber 30 parts, 1502 type styrene-butadiene rubber 100 parts , 1 part of sulfur, 5 parts of zinc oxide, 1.1 parts of stearic acid, 70 parts of spray carbon black, 20 parts of o-dibutyl ester, NOBS accelerator (Chinese name: N-(diethylene oxide)-2-benzo Thiazole sulfenamide, molecular formula: C 11 h 12 N 2 S 2 O) 3 parts, 4010 anti-aging agent (Chinese name: N-phenyl-N'-cyclohexyl-p-phenylenediamine, molecular formula: C15H18N2) 3 parts.

Embodiment 3

[0033] The production process of embodiment 3 is identical with embodiment 1, and difference is that the rubber material component ratio is different, and the rubber material composition of embodiment 3 is calculated as follows by component: 1# natural rubber 40 parts, 1502 type styrene-butadiene rubber 120 parts , 1.1 parts of sulfur, 6 parts of zinc oxide, 1.2 parts of stearic acid, 80 parts of spray carbon black, 25 parts of o-dibutyl ester, NOBS accelerator (Chinese name: N-(diethylene oxide)-2-benzo Thiazole sulfenamide, molecular formula: C 11 h 12 N 2 S 2 O) 4 parts, 4 parts of 4010 anti-aging agent (Chinese name: N-phenyl-N'-cyclohexyl-p-phenylenediamine, molecular formula: C15H18N2).

[0034] Performance comparison of three kinds of embodiments

[0035]

[0036] Embodiment 2 formula compares with current market product

[0037]

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PUM

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Abstract

The invention relates to rubber for a low-temperature resistant rubber hose for a refrigerator. The rubber is characterized by comprising the following raw materials in proportion: 20-40 parts of 1# natural rubber, 80-120 parts of 1502-type butadiene styrene rubber, 0.9-1.1 parts of sulphur, 4-6 parts of zinc oxide, 1-1.2 parts of stearic acid, 60-80 parts of spraying carbon black, 15-25 parts of o-dibutyl ester, 2-4 parts of NOBS (N-(Oxidiethylene)-2-benzothiazolyl sulfenamide) accelerant C11H12N2S2O and 2-4 parts of 4010 antiaging agent. The rubber for low-temperature resistant rubber hose for the refrigerator has the improved low-temperature resistant performance and reduced low-temperature brittleness.

Description

technical field [0001] The invention relates to the field of rubber, in particular to rubber for low-temperature resistant rubber hoses for refrigerators. Background technique [0002] Refrigeration machines such as air conditioners use rubber tubes to transport refrigerants such as freon. Due to the widespread use of modern large-scale refrigeration machines such as central air conditioners, there are higher requirements for the low temperature of the rubber hoses used in refrigerators. However, due to the poor low-temperature performance of the rubber in the existing rubber hose for refrigerators, the rubber hose for refrigerators is brittle at low temperatures. Contents of the invention [0003] The object of the present invention is to provide a rubber for low-temperature resistant rubber hose for refrigerators, which can improve the low-temperature resistance of the rubber for low-temperature rubber hose and reduce the low-temperature brittleness of the rubber. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/06C08L7/00C08K13/02C08K3/04C08K5/12C08K3/22C08K5/18C08K5/47B29B7/28B29C35/02
Inventor 党保军
Owner XIAN ZHITAI RUBBER & PLASTIC IND
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