Low-temperature automobile expansion adhesive and preparation method thereof

An automotive and low-temperature technology, which is applied in the field of low-temperature automotive expansion rubber and its preparation, can solve the problems of low foaming ratio, poor storage stability, short storage period and the like of the expansion rubber, and achieves good high-temperature baking stability and storage stability. , The effect of stable product quality
CN110684486AActive Publication Date: 2020-01-14浙江杰上杰新材料股份有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
浙江杰上杰新材料股份有限公司
Publication Date
2020-01-14

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Abstract

The invention discloses a low-temperature automobile expansion adhesive. The low-temperature automobile expansion adhesive is made of the following raw materials in parts by weight: 100 parts of a polymer, 3-5 parts of a peroxide vulcanization agent, 0.5-3 parts of a vulcanization auxiliary agent, 5-15 parts of a foaming agent, 0.5-8 parts of a foaming activator, 1-10 parts of a filler, 2-15 partsof a tackifier, 0.5-3 parts of a lubricant, 0-2 parts of an antioxidant, and 0-10 parts of a flame retardant. According to the low-temperature automobile expansion adhesive, the raw material composition is carefully chosen, the content of each raw material is optimized, and the prepared low-temperature automobile expansion adhesive has high foaming ratio and small product density, and can fill large cavities. The expansion adhesive has high bonding strength with an ABS framework member. The expansion adhesive has good high-temperature baking stability. The expansion adhesive after foaming isnot easy to collapse and shrink. The low-temperature foaming performance and high-temperature foaming ratio are well balanced. The storage stability is good, the product quality is stable, and a storage period is relatively long.
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Description

technical field

[0001] The invention relates to the field of expansion rubber, in particular to a low-temperature automobile expansion rubber and a preparation method thereof. Background technique

[0002] With the rapid development of the national economy, people's living standards have been greatly improved, and various high-end passenger cars have become family necessities. There is a large gap in engine technology between self-owned brands and foreign-funded brand cars, resulting in self-owned brands in the mid-to-high-end market. Frustrated one after another. Increasing investment in research and development, improving the ride comfort of automobiles, and controlling production costs have become top priorities. Among the many parameters of the car, NVH (Noise, Vibration, Harshness) has received great attention, because the bypass cavity of the car body will generate high-speed airflow when driving at high speed, resulting in strong noise and vibration.

[0003] The cu...

Claims

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