Neoprene material for air conditioner motor damping rings

Abstract

The invention discloses a neoprene material for air conditioner motor damping rings, which is prepared from the following raw materials in parts by weight: 40-90 parts of neoprene, 10-60 parts of natural rubber, 5-15 parts of rubber composite vulcanizing agent and 1-5 parts of rubber anti-aging agent. The rubber composite vulcanizing agent is composed of sulfur and one or more of zinc oxide, magnesium oxide, rubber accelerator M, rubber accelerator DM, rubber accelerator TT and rubber accelerator CZ. The neoprene material has the advantages of low cost, favorable high-temperature resistance, small variation in hardness after aging, and favorable damping effect.

Description

technical field [0001] The invention relates to the technical field of neoprene, in particular to a neoprene material used for the damping ring of an air conditioner motor. Background technique [0002] Rubber has excellent damping and shock-absorbing properties, and is widely used in the manufacture of shock-absorbing products that prevent vibration, shock transmission, absorb shock or play a buffering role. The rubber material selected for shock-absorbing products is mainly based on the purpose and conditions of use, mainly considering its elastic modulus, mechanical strength, dynamic fatigue, creep, stress relaxation, processing characteristics and cost factors. At present, the rubber materials used as shock absorption can be divided into six categories: [0003] ① Ordinary rubber materials mainly including natural rubber, styrene-butadiene rubber and butadiene rubber; [0004] ②Oil-resistant rubber materials mainly composed of nitrile rubber; [0005] ③Neoprene-based ...

AI Technical Summary

Problems solved by technology

[0016] Since the aging process of chloroprene rubber is mainly an oxidation process of crosslinking, the elastic modulus of the material increases after aging, resulting in an increase in the static stiffness of the shock absorber ring, which deviates from the resonance area, and reduces the shock absorption effect of the shock absorber ring. Increased air conditioning noise

Invention patent CN 102464811A discloses an ozone-resistant natural rubber composition for automobile shock absorbers. Since the composition is mainly composed of natural rubber, neoprene only accounts for 2-3% by weight, which cannot meet the requirements of air conditioners. After the damping ring is aged at 120℃×72h, the hardness change should be within ±4 degrees.

Although silicone rubber can meet the temperature resistance of the shock-absorbing ring, it is not as good as neoprene materials in terms of tensile properties, fatigue resistance, flame resistance, and medium resistance, and its cost is higher than that of neoprene materials.