※LDPE荷兰陶氏PG7008***

品牌：进口 产品规格：齐全 产地：广东东莞市 包装说明： CAS/标准: 运输说明：



Propylene film
PP production in China will increase greatly in the next few years, but production is still in short supply. China has become the largest net importer of polypropylene in the world. However, because of the rapid growth of domestic output, the dependence on imports has generally declined. In the next few years, the apparent consumption will remain high, the import volume will increase and the polypropylene industry has a broad prospect in China in the next few years.
Production process
It is polymerized by vinyl acetate in the presence of acetic acid. The degree of polymerization is 250~600. After polymerization, the residual trace catalyst (usually peroxide), monomer and / or solvent are removed by vacuum drying, steam stripping, washing or combined treatment.※ LDPE荷兰陶氏PG 7008***
In the presence of acetic acid, benzoyl peroxide is used as initiator, vinyl acetate is bulk polymerized, or polyvinyl alcohol is used as dispersant, and the solution polymerized 2 to 6h at 70~90 degree temperature in the solvent. The product is 250~600.
Variety and model
Isotactic polypropylene, random polypropylene and syndiotactic polypropylene
Polypropylene molecules contain methyl group. They are divided into isotactic polypropylene (isotactic polyPropylene), atactic polypropylene (atactic PolyPropylene) and syndiotactic polypropylene (syndiotatic Polypropylene) according to their methyl positions. The methyl arrangement is called the isotactic polypropylene on the same side of the main chain. If methyl is distributed orderly on both sides of the main chain, it is called atactic polypropylene. When methyl is alternately arranged on both sides of the main chain, it is called ※ LDPE荷兰陶氏PG 7008***syndiotactic polypropylene. The general production of polypropylene resin, the content of isotactic structure (called isotacticity) is about 95%, the rest is random or syndiotactic polypropylene. The polypropylene resin produced in our country is classified according to the melting index and the additives added.
Random polypropylene is a by-product of the production of isotactic polypropylene. The isotactic polypropylene is produced in the isotactic polypropylene production, and the isotactic polypropylene is separated from the random polypropylene by separation.展望3月份，我们认为国际钢材市场将会呈现稳健上行。欧洲市场，随着气候转暖，欧洲市场交易趋于活跃，欧洲钢厂将会维持价格稳定，并在适当时机上调钢材价格，随着美国高举贸易保护大旗的带动，预计欧洲国家也会进行一定程度的效仿，在贸易保护措施的背景下，预计欧洲钢厂会受到鼓舞，尽管从中长期来看，欧洲市场依旧遇到进口资源的压力，但是3月份欧洲市场预计会稳健上行为主。北美市场，随着贸易保护措施的进一步升级，美国钢铁市场变得越来越“封闭”，在这种背景下北美钢材价格继续快速上涨。亚洲市场，春节后中国市场重新变得活跃，中国的去产能化使得国内市场供求状况大大改善，因此中国国内市场3月份将会震荡上行，这也将带动亚洲市场保持坚挺。综上所述我们认为，3月份国际钢材市场将会呈现稳健上行的格局。
Random polypropylene is a high elastic thermoplastic material, it has good tensile strength. It can also be vulcanized like ethylene propylene rubber.
Production method