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

Navigation/on

Navigation/off

中文/EN

Media Focus

Media Focus

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

I. Overview of Nylon 6 chip industry

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.

Nylon 6 chips are intermediates that link chemical raw materials and downstream applications in the nylon industry. The main raw materials upstream of the industrial chain are petroleum, coal, benzene, caprolactam, etc.; In addition, its downstream application fields are also very wide. At present, it is mainly used in nylon fiber, engineering plastics, film materials and other fields.

Nylon 6 Chip Industry Chain

 

II. Current situation of Nylon 6 Chip Industry

Benefiting from the advancement of polymerization technology, the stable supply of raw material caprolactam and the strong demand in downstream applications, the domestic production of nylon 6 chips has grown steadily. According to the data, the output of nylon 6 chips in China increased from 1.117 million tons in 2010 to 3.21 million tons in 2018. It is expected that with the continuous expansion of application fields, the output of nylon 6 chips in China will continue to grow steadily.

 

 

 

 

 

Service hotline
Please leave your email

Technical support: lanyun

欧美xx视频| 色综合久久久| 色呦呦日韩精品| 久九中字婷婷| 一区二区三区久久久久| 精品中文在线| 吃奶| 午夜性爱aⅤ| 欧美亚洲精品二区久久久| 玖玖香蕉网| 亚洲第一综合在线| 国产精品久久久久久久小唯西川| 夜夜嗨av久久久国色av| 九九九精品视频| 欧美日韩国产特级| 日韩一区欧美一区性色99| 精品无码久久久久国产婷婷| 久久人人爽人人爽人人片Ⅴ| 国产99九九精品| 色婷婷六月| 香蕉熟女亚洲二区| 欧美精产国品一二三区别在哪里| av色| 日本一本区| 黄久久| 亚洲AV午夜国产精品无码中| 色欲AV永久无码精品无码蜜桃| 五寨县| 国产啪精品视频网站免费尤物| 国产香蕉97碰碰久久人人| 欧美色网站免费| 浪潮久久一区二区三区四区| 亚洲色图 欧美色图久久| 亚洲一级无码毛片| h欧美| 欧美晚上你懂的| 欧美日韩丝袜亚洲| 老司机看片| 成人熟女一区二区三区| 4虎| 欧美性爱日视|