PA66Also known as nylon 66, commonly known as nylon double 6, it is formed by the polycondensation of adipic acid and hexamethylenediamine, with high mechanical strength, excellent self-lubrication, and excellent stress crack resistance and impact resistance, etc. Performance, PA66 is widely used in the automotive industry, instrument housings, and other products that require impact resistance and high strength requirements. Pulleys, roller shafts, impellers in the pump body, fan blades, etc. Limited by the production technology of the key raw material adiponitrile, the production of nylon 66 is mainly concentrated in the United States, Britain, France, Italy, Germany, Japan and other developed countries and regions.
With the increasing demand for lightweight vehicles, “replace steel with plastic” It has become the mainstream solution for manufacturers’ research, and one of the important optional materials in “plastic” is PA66. The most widely used non-metallic materials in automobiles are modified plastics. “Replacing steel with plastic” can not only achieve a substantial weight reduction of body parts, the weight reduction ratio can reach 30%-50%, and it also has the advantages of “three highs”: High degree of freedom in design, high richness in appearance, and high convenience in processing. Although PA66 is currently mainly used in functional parts around the engine, interior parts, exterior covers, etc., manufacturers have begun to study the application of plastics in automotive structural chassis. Celanese, a multinational chemical leader, launched Zytel NVH Gen 2, which is based on PA66 and uses the structural damping ability of the material. It is not only lightweight, durable, but also has the function of vibration and noise reduction. model of electric vehicle chassis.
With the vigorous development of new energy vehicles, there is a demand for electric vehicles with battery life and weight reduction Automobiles will continue to promote the demand for “replacing steel with plastic”, and the plastic substitution of automotive materials will further open up the application space of PA66. PA66 is one of the core downstream of adipic acid. More than 30% of adipic acid in China is used for the manufacture of PA66. The expansion of demand for PA66 will also bring about an increase in the demand for adipic acid.
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