成人电影在线观看网址,国产95在线 | 欧美,亚洲不卡无码在线观看视频,精品一区成人免费看片视频吗,精品国产乱码久久久久电车痴汉久
400-807-5707
Basic knowledge of artificial stone 2018-8-10 Click:


1. Definition of artificial stone:

Artificial stone, scientific name polymer mineral filled composite solid surface material, English name "SOLIDSURFACE", literally translated as "hard surface material". The so-called solid surface material refers to the homogeneous solid material with dense internal structure and uniform surface. The original technology is derived from DuPont. DuPont artificial stone is based on polymethyl methacrylate MMA (commonly known as "acrylic" PMMA is formed by free radical polymerization of methyl methacrylate) and aluminum hydroxide as the main components. The products produced have high surface hardness, Good texture, non-toxic, non-radioactive, non-sticky oil, non-staining, anti-bacterial and anti-mildew, impact resistance, easy maintenance, seamless splicing, arbitrary shape and other advantages, but the technology is extremely complicated, the cost of raw materials is high, and the equipment investment is huge.
In 1969, DuPont of the United States developed the first solid surface material, CORIAN, which created a new solid surface material industry in the world. The actual large-scale use of artificial stone began in the 1980s. In 1990, CORIAN entered the Chinese market and was the first solid surface material brand to be marketed and applied in the Chinese market.
Later, Wellstone replaced polymethyl methacrylate with unsaturated resin to produce artificial stones, which drastically reduced costs. Later, this technology was introduced to China, and production began in China in 1996, and more methods of producing artificial stones were rapidly developed in our country.
Different from products whose structure determines performance, the use performance of artificial stone is determined by various conditions such as the composition and proportion of raw materials, production equipment, and technology. Among them, raw materials are the basis for determining its quality and the main factor determining the cost of products. .

2. What are the materials that make up artificial stone?
Resin: Resin is the most important base material for artificial stone. Generally speaking, the properties of resin determine the final performance of artificial stone. The resins currently used to make artificial stones are generally ortho-benzene, m-benzene, neopentyl glycol, m-benzene / neopentyl glycol, vinyl ester, and acrylic.
Filling materials: Artificial stone filling materials mainly include: aluminum hydroxide, heavy calcium carbonate, calcium hydrogen phosphate, natural marble powder, inorganic granite stone powder, and swatch particles. Its main functions are: one is to fill the volume; the other is to enhance the texture of the artificial stone; the third is to enhance the mechanical properties of the artificial stone; the fourth is to act as a flame retardant.
Pigments: The role of pigments in artificial stone is to mix and match varieties of colors to make them colorful. In theory, any color can be formulated through various pigments.
Accelerators and curing agents: Accelerators and curing agents are essential additives for the production of artificial stone, which can control the gel time of the board within a predetermined range.
Other auxiliaries: The resin is a polymer polymer material. Properly adding some auxiliaries can improve its process performance, improve production efficiency, improve artificial stone properties, and extend its life.
Products Tel Navigation
国产乱码精品一区二区三 | 欧美性猛交 乄乂乱大交情趣内衣 | 黄色视频在线观看免费观看99re | 丝袜 制服 综合 另类 另类 校园 | 人人肉人人操人人爽 | 永久免费观看美女裸身黄色 | 国产一级a毛一级a看免费视频野外 | 波多野结衣毛片在线观看 | 99国产精品在线观看 | 好男人一区二区三区 | 日本在线免费观看视频 | 精品人妻无码一区二区三区91 | 99在线无码精品秘 老外 | 欧美高清一区二区三区不卡任你躁 | 无套猛戳丰满少妇人妻 | 成人性生交大片免费看A片古女 | 国产又粗又猛打飞机按摩 | 精品国产伦子伦免费看 | 国产一线天粉嫩馒头极品AV | 影音先锋xfplay色资源网站 | 特級西西444WWw高清大膽 | 寂寞少妇BBBBB搡BBBB | AV鲁丝一区鲁丝二区鲁丝四区 | 国产又长又大又粗又黄又爽 | 精品国产免费入口观看污 | 四虎地址8848精品 | 国产一区二区在线视频 | www.亚洲日韩欧美日韩久久久 | 亚洲日本无码一区二区在线二产线 | 亚洲AV秘 无码一区小宵 | 免费黄色视频网站观看 | 午夜理理伦A片在线播放 | 国产午夜精品视频麻豆视频 | 日本中文字幕在线播放 | 五月婷婷一区二区 | 特级做a爰片毛片免费看观看 | 人人妻人人澡人人dvd | 俄罗斯性猛交ⅩXXX乱大交 | 亚洲午夜激情视频在线观看 | 国产一级A片无码免费兰花影视 | 无遮挡高潮视频在线观看 |