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什么是PVC

 

日期:2019年08月22日 来源:本站原创 浏览:

 

PVC到底是什么呢?PVC,全名为Polyvinylchlorid,主要成份为聚氯乙烯,另外加入其他成分来增强其耐热性,韧性,延展性等。这种表面膜的最上层是漆,中间的主要成分是聚氯乙烯,最下层是背涂粘合剂。它是当今世界上深受喜爱、颇为流行并且也被广泛应用的一种合成材料。它的全球使用量在各种合成材料中高居第二。据统计,仅仅1995年一年,不PVC在欧洲的生产量就有五百万吨左右,而其消费量则为五百三十万吨。在德国,PVC的生产量和消费量平均为一百四十万吨。PVC正以4%的增长速度在全世界范围内得到生产和应用。近年来PVC 在东南亚的增长数度尤为显著,这要归功于东南亚各国都有进行基础设施建设的迫切需求。在可以生产三维表面膜的材料中,PVC是最适合的材料。
PVC可分为软PVC和硬PVC。其中硬PVC大约占市场的2/3,软PVC占1/3。软PVC一般用于地板、天花板以及皮革的表层,但由于软PVC中含有柔软剂(这也是软PVC与硬PVC的区别),容易变脆,不易保存,所以其使用范围受到了局限。硬PVC不含柔软剂,因此柔韧性好,易成型,不易脆,无毒无污染,保存时间长,因此具有很大的 开发应用价值。下文均简称PVC。PVC的本质是一种真空吸塑膜,用于各类面板的表层包装,所以又被称为装饰 膜、附胶膜,应用于建材、包装、医药等诸多行业。其中建材行业占的比重最大,为60%,其次是包装行业,还有其他若干小范围应用的行业。

What the hell is PVC? PVC, called Polyvinylchlorid, is mainly composed of polyvinyl chloride, and other components are added to enhance its heat resistance, toughness, ductility, and so on. The top layer of this surface film is paint, the main component in the middle is polyvinyl chloride, and the bottom layer is the back adhesive. It is a popular, popular and widely used synthetic material in the world today. Its global use ranks second among various synthetic materials. According to statistics, in 1995 alone, the production of PVC in Europe was about 5 million tons, while its consumption was 5.3 million tons. In Germany, PVC production and consumption averaged 1.4 million tons. PVC is being produced and used worldwide at a 4 % growth rate. The growth of PVC in Southeast Asia has been particularly significant in recent years, thanks to the urgent need for infrastructure development in Southeast Asia. PVC is the most suitable material for the production of three-dimensional surface membranes.
PVC can be divided into soft PVC and hard PVC. Among them, hard PVC accounts for about 2/3 of the market, and soft PVC accounts for 1/3. Soft PVC is generally used on floors, ceilings, and leather surfaces, but because soft PVC contains softeners(this is also the difference between soft PVC and hard PVC), it is easy to become brittle and difficult to preserve, so its range of use is limited. Hard PVC does not contain softeners, so it is flexible, easy to form, not brittle, non-toxic and pollution-free, and has a long preservation time, so it has great development and application value. The following are all referred to as PVC. The essence of PVC is a vacuum suction plastic film for the surface packaging of various panels, so it is also known as a decorative film, adhesive film, applied to building materials, packaging, medicine and many other industries. Among them, the building materials industry accounted for the largest proportion, 60 %, followed by the packaging industry, and there are several other small-scale applications.

 

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