Temperature variation resistant rubber for heat preservation of air conditioner circulation pipeline

Abstract

The invention relates to the technical field of rubber materials and in particular relates to temperature variation resistant rubber for heat preservation of an air conditioner circulation pipeline. The temperature variation resistant rubber comprises the following components: nitrile rubber, an ethylene-propylene-diene monomer, natural rubber, carbon black, a high temperature resistant curing agent, zinc oxide, calcium hydroxide, stearic acid, a coupling agent, an anti-aging agent, a vulcanizing agent and an accelerant, wherein the high temperature resistant curing agent is modified aromaticamine; the carbon black is selected from carbon black produced from the natural gas as a raw material by using a channel process; the coupling agent is a silane coupling; the anti-aging agent is one of an anti-aging agent RD, an anti-aging agent CPPD (Calcium Pyrophosphate De-Hydrate) and an anti-aging agent DPPD (Diphenyl-Phenylene-Diamine); the vulcanizing agent is selected from dicumyl peroxideor a vulcanizing agent PDM; the accelerant is selected from triallyl isocyanurate. The rubber is capable of replacing foamed cotton as a circulation pipeline heat preservation material, is good in heat preservation effect, is capable of enduring harsh temperature variations, and in addition is excellent in anti-aging property and long in service life.

Description

technical field [0001] The invention relates to the technical field of rubber materials, in particular to a temperature-resistant rubber used for heat preservation of air-conditioning circulation pipes. Background technique [0002] Household air conditioners are mainly split-type air conditioners. This type of air conditioner is composed of indoor units, outdoor units, circulation pipes, and power lines. The outdoor unit includes compressors and axial fans. Component composition; the circulation pipeline mainly realizes the refrigeration or heating cycle through the flow of the internal refrigerant. [0003] At present, the circulation pipes on the market mainly use copper pipes. In order to install the heat preservation of the circulation pipes, the pipes will be wrapped with foam cotton, and then the foam cotton will be tightly wrapped with adhesive tape to improve the heat preservation and fastening effect. Foam cotton has good thermal insulation effect, but poor anti-a...

AI Technical Summary

Problems solved by technology

Foam cotton has good thermal insulation effect, but poor anti-aging performance, especially in high temperature or low temperature weather, the drastic temperature change produced by the refrigerant is more likely to accelerate the aging process of the material, and the service life of the air conditioner is generally longer. During the period, due to the long-term outdoor wind and rain environment, the foamed cotton is very prone to aging and damage, and loses its thermal insulation effect.