色综合久久无码五十路人妻,婷婷射精av这里只有精品,欧美成人精品高清在线蜜芽,国产精品综合日韩精品已满

Nylon-what kind of material is it?

"The scientific name of nylon is polyamide, which is also a general term for thermoplastic resins. There are many kinds of nylon, with large production capacity and wide application. And its molecular structure is nylon fiber.

Synthetic Fiber - Nylon

"Nylon", also known as "Capron" and "Chinlon", its chemical name is polyamide fiber. Everyone is no stranger to nylon, because the nylon products can be found everywhere in daily life. However, few people know its history. Nylon is the first synthetic fiber developed in the world.

Analysis of the output of nylon 6 chip industry, differentiated and functional nylon has become the key development direction

Nylon 6, namely polyamide 6, also known as PA6, is a translucent or opaque milky white crystalline polymer. Nylon 6 chips have the characteristics, such as good resistance, strong wear resistance, oil resistance, shock resistance, etc., meantime, it has high mechanical strength and heat resistance, good impact strength, high melting point, and good molding performance. Nylon 6 chips are widely used, and can be classified into fiber grade, engineering plastic grade, film grade chips and nylon composite materials according to their uses, which are made into various products respectively.