人妻综合网,深夜影院操一操,中文字幕有码在线播放,欧美精品第1页

FC51

玻/礦增強(qiáng)40%

阻燃V0

415HP

玻纖增強(qiáng)15%

抗沖擊

530

玻纖增強(qiáng)30%

530HTE

玻纖增強(qiáng)30%

高溫電氣性能

540SUV

玻纖增強(qiáng)40%

抗UV

545

玻纖增強(qiáng)45%

FG530

玻纖增強(qiáng)30%

食品級(jí)

FR515

玻纖增強(qiáng)15%

阻燃V0

FR530

玻纖增強(qiáng)30%

阻燃V0

FR531

玻/礦增強(qiáng)45%

阻燃V0

FR533NH

玻纖增強(qiáng)33%

阻燃V0 無鹵

GW525CS1

玻纖增強(qiáng)25%

FE5264

玻纖增強(qiáng)36%

By Huayun plastic raw materials Co., Ltd. PET raw materials overview:

Polyethylene terephthalate (PET) is the main type of thermoplastic polyester. Its English name is pet or PETP, commonly known as polyester resin. It is a condensation polymer of terephthalic acid and ethylene glycol, together with PBT, it is called thermoplastic polyester, or saturated polyester.

In 1946, the United Kingdom published a report on the production of pet. In 1949, ICI completed the pilot test. However, after DuPont purchased the report, it established a production unit in 1953 and realized industrial production in the world. In the early stage, pet was almost used for synthetic fiber (commonly known as Dacron in China). Since the 1980s, pet as an engineering plastic has made a breakthrough, and the nucleating agent and crystallization accelerator have been developed. At present, pet and PBT are used as thermoplastic polyester, and become one of the five engineering plastics.

Pet is divided into fiber grade polyester chip and non fiber polyester chip. 1. Fiber grade polyester is used to manufacture polyester staple fiber and polyester filament. It is the raw material for polyester fiber enterprises to process fiber and related products. Polyester is the product of chemical fiber. 2. Non fiber grade polyester is widely used in packaging industry, electronic and electrical appliances, medical and health care, construction and automobile fields. Packaging is the non fiber application market of polyester, and also the fast growing field of pet.

As a packaging material, pet has some advantages

It has good mechanical properties, impact strength is 3 ~ 5 times of other films, and good folding resistance.

Resistant to oil, fat, enoic acid, dilute alkali and solvent.

It has excellent resistance to high and low temperature. It can be used for a long time in the temperature range of 120 ℃. For a short time, it can withstand high temperature of 150 ℃ and low temperature of - 70 ℃.

The permeability of gas and steam is low, and it has excellent gas blocking, water, oil and odor perbance.

High transparency, UV blocking, good gloss.

It is nontoxic, tasbess, hygienic and safe, and can be directly used in food packaging.