色多多视频最新版app无限_毛片免费看不卡网站_一个人看的WWW高清免费观看_国产精品高清偷窥盗摄_成人动漫在线网站_葡京99热这里只有精品_给我免费播放无码片在线_国产自偷自拍亚洲精品网址_日韩一区视频另类在线_亚洲色婷婷五月天激情四射综合

What factors affect the tension of polypropylene high strength yarn, these two points can be seen in the spinning process:

1. The influence of tensile ratio

The tensile process of the primary fiber destroys the original structural form of the primary fiber and generates a new order structure. Under the action of tensile stress and thermal effect, the activity of macromolecular chain segments increases, and various structural units gather along the axial orientation of the fiber, rearrange and add new binding points, so that more molecular chains of the fiber are in a particularly good stress bearing state. The regularity of the three-dimensional structure (that is, crystallization) is produced, and the fiber density increases with the increase of the tensile multiple.

The strength of the fiber increases with the increase of the tensile ratio, and the tensile ratio contributes more to the strength of the fiber.

2. Influence of melting index

The melting index of the raw material indicates the molecular weight of the raw material to a certain extent, and the amount of fiber increases under the same process conditions. When the molecular entanglement is large, the strength of the stretched fiber increases with the increase of molecular weight, and when the molecular weight is low, it is easy to produce slip between molecular chains, which is manifested in the decrease of fiber strength. In the process of polypropylene high-strength silk spinning, several raw materials with different melt indices are used.

In the test spinning process, it was found that under the same process conditions, the melting index of raw materials was different, and the strength of the finished silk was different, and showed a certain regularity.

"Hongyang" brand polypropylene high strength yarn products have small color difference, good color fastness, high strength, and are widely used in decorative belts, safety belts, marking lines, etc.The company's main product:  polypropylene high strength yarn , polypropylene filament, polypropylene air change yarn，polyester air change yarn, ribbon.

Taixing Hongyang New Materials Technology Co., Ltd. has consistently adhered to the "excellent quality, customer first, quality service, adhere to the contract," the purpose, with high-quality products, good reputation, selling the country. Wholeheartedly with the domestic business win-win cooperation and common development!