BASF is a leading chemical company in the world, providing customers with a wide range of high performance products, including chemicals, pstics, specialty products, agricultural products, fine chemicals, crude oil and natural gas. Its unique consortium strategy (i.e. "Verbund" in German) is the company's adtage. It enables BASF to achieve low-cost adtages, thus ensuring a great competitive adtage. BASF follows the principle of sustainable development to conduct its business. In 2002, BASF's sales amounted to 32 billion euros (about 34 billion US dolrs), with more than 89000 employees worldwide. BASF shares are listed on the stock exchanges of Frankfurt (BAS), London (B), New York (BF), Paris (BA) and Zurich (BAS).
Overview of PA6 automotive application: PA6 is widely used in automobiles. Automobile is an important and rapidly growing market of pstics. PA6 has good comprehensive performance, low density, easy molding, rge design freedom, heat insution and insution, and has obvious adtages in mold and assembly cost. PA6 not only has high tensile strength, excellent impact performance, but also has high thermal deformation temperature, heat resistance, low friction coefficient, excellent wear resistance, self lubrication, oil resistance and chemical resistance. It is especially suitable for gss fiber or other materials to fill and enhance the material performance and grade, so as to meet the requirements of final components and customers. At present, there are many kinds of PA6 automobile products, such as radiator box, front grille, heater box, radiator bde, steering column cover, tail mp cover, adsorption tank, timing gear cover, n bde, various gears, radiator water chamber, air filter housing, intake manifold, control switch, intake duct, vacuum connion pipe, air bag, elrical instrument , wiper, pump bde Wheel, bearing, bushing, vae seat, door handle, wheelhouse, etc. in a word, it invoes many parts such as automobile engine parts, elrical parts, body parts and air bags. Among them, the amount of parts under the hood is the rgest, which is due to the development of miniaturization and lightweight, the volume of engine room is reduced and the temperature is increased, which requires the parts under the hood to be more resistant to high temperature, and PA6 can fully meet the above requirements through modification. Some industrial analysts believe that PA6 parts not only py a protive role, but also he an aesthetic eff.
The chemical and physical properties of PA6 are simir to that of PA66. However, its melting point is low and the process temperature range is wide. Its impact resistance and solubility are better than PA66, but its hygroscopicity is also stronger. Because many quality characteristics of pstic parts are affed by hygroscopicity, it should be fully considered when using PA6 to design products. In order to improve the mechanical properties of PA6, various modifiers are often added. Gss fiber is the most coon additive, sometimes in order to improve the impact resistance of synthetic rubber, such as EPDM and SBR. For products without additives, the shrinkage of PA6 is between 1% and 1.5%. The addition of gss fiber additive can reduce the shrinkage to 0.3% (but it is slightly higher in the dirion perpendicur to the process).
工业中的应用:聚酰胺玻纤增强材料可根据产品的特要求添加玻纤含量在5-60%的范围,这类材料具有很好的强度、耐热能、优良的抗冲击能、良好的尺寸稳定及低翘曲等。工业生产中泛用于制造轴承、圆齿轮、凸轮、伞齿轮、各种滚子、滑轮、泵叶轮、风扇叶片、蜗轮、推进器、螺钉、螺母、垫片、高压密封圈、耐油密封垫片、耐油容器、外壳、软管、电缆护套、剪切机滑轮套、牛头刨床滑块、电磁分配阀座、冷陈设备、衬垫、轴承保持架、汽车和拖拉机上各种输油管、活塞、绳索、传动皮带。
PA6首先由德国的BASF联营公司于三十年末期开发出来,四十年初期正式工业化生产。聚酰胺大分子结构中含有大量的酰胺基团,大分子末端为氨基或羧基,是一种强较,能形成氢键且具有一定反应活的半结晶聚合物。
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