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Preparation technology of chloroprene rubber used for external rubber layer of rubber tube of automobile air conditioning

A technology of neoprene and automobile air conditioner, which is applied in the field of preparation of neoprene rubber for the outer rubber layer of automobile air conditioner hose, and can solve problems such as chapping, hardening, and insufficient heat resistance

Inactive Publication Date: 2011-09-28
尤建义
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The neoprene rubber used in the prior art to make the outer rubber layer of the automobile air-conditioning rubber hose will harden and crack at ambient temperatures above 120°C; therefore, the neoprene rubber in the prior art has the problem and deficiency of insufficient heat resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0021] Product Name: Neoprene for the outer rubber layer of automobile air-conditioning hose;

[0022] Formula: formula unit is percentage by weight;

[0023] Rubber raw material: Neoprene 48.00%;

[0024] Reinforcing agent: 14.40% white carbon black, 28.80% active calcium carbonate, 2.40% non-polluting high-definition semi-reinforced furnace black;

[0025] Vulcanization accelerator: zinc oxide 0.96%, N, N, N'-trimethylthiourea 0.48%;

[0026] Acid Absorber: Magnesium Oxide 3.84%;

[0027] Anti-scorch agent: 0.16% of N-cyclohexylthiophthalimide, 0.24% of tetramethylthiuram disulfide;

[0028] Active agent: stearic acid 0.24%;

[0029] Antiaging agent: 0.48% of 4,4'-diphenylisopropyl diphenylamine;

[0030] preparation

[0031] Preparation conditions, equipment

[0032] Ambient air pressure: one atmosphere;

[0033] Ambient temperature: room temperature;

[0034] Preparation equipment: open rubber mixing machine, pressurized internal mixer, rubber filter extruder;

...

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PUM

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Abstract

The invention discloses a preparation technology of chloroprene rubber used for an external rubber layer of a rubber tube of an automobile air conditioning, comprising the process flows of making up a formula and preparing. In the invention, the technical scheme utilizing a heat-resisting modified formula to match with a corresponding preparation method is adopted, thus overcoming the problem of poor heat resistance in the prior art. The provided preparation technology of the chloroprene rubber used for the external rubber layer of the rubber tube of the automobile air conditioning prepares chloroprene rubber the application temperature of which is minus 30-135 DEG C, and the chloroprene rubber is used for manufacturing the external rubber layer of the automobile air conditioning, thus reaching the purpose of ensuring rubber tube products to resist heat and satisfy ELV instruction requirement.

Description

technical field [0001] The invention relates to the preparation of neoprene, specifically refers to the preparation technology of neoprene for the outer rubber layer of automobile air-conditioning rubber hose, which is used to manufacture rubber products such as automobile air-conditioning rubber hoses, and whose application temperature is -30°C to 135°C. Background technique [0002] Neoprene is widely used in the manufacture of rubber products such as automotive hoses. The chloroprene rubber used in the prior art to make the outer rubber layer of the automobile air-conditioning rubber hose will harden and crack at ambient temperatures above 120°C; therefore, the chloroprene rubber in the prior art has the problem and deficiency of insufficient heat resistance. Contents of the invention [0003] Aiming at the problems and deficiencies in the above-mentioned prior art, the present invention adopts a heat-resistant modified formula and a technical scheme with a correspondin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L11/00C08K13/02C08K3/36C08K3/26C08K3/22C08K5/405C08K5/40C08K5/378C08K5/18
Inventor 尤建义
Owner 尤建义
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