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(A) The characteristics of plastic flooring Plastic flooring with light weight, dimensional stability, construction convenience, durability, comfortable feet, beautiful color, wear, oil, corrosion resistance, fire prevention, sound insulation and heat insulation.
(B) the classification of plastic floor According to the resin used can be divided into: PVC plastic floor, polypropylene resin plastic floor and chlorinated polyethylene resin plastic floor three categories. At present, the vast majority of plastic flooring belongs to the first category. According to the production process can be divided into calendering, hot pressing and injection. The production of plastic flooring in China is mostly calendered. According to the material can be divided into hard, semi-rigid sheet and soft coil.
(3) Raw materials and production process of pvc plastic floor The raw materials of pvc plastic floor are the same as those of ordinary plastics. In addition to the resin, other auxiliary materials such as plasticizers, stabilizers, fillers, etc. must be added. However, fillers are added to plastic flooring because it is rarely subjected to pulling, shearing, tearing, etc. during use, and is mainly subjected to pressure and friction. On the one hand it can reduce the cost of the product, on the other hand it can improve the dimensional stability of the product, heat and flame resistance. Commonly used fillers are calcium carbonate and asbestos, and other fillers such as barite, talcum powder, clay, etc. are commonly used in the production process of pvc plastic flooring, such as hot pressing and calendering. Hot press fillers can be added as appropriate, but it is an intermittent production. Calendering is continuous, but fillers cannot be added
(4) Characteristics and Applications of Common PVC Plastic Floors
1, pvc asbestos floor tiles pvc asbestos floor tiles is the production of the earliest, most commonly used plastic floor materials, from pvc plastic or pvc and chloroacetate copolymer resin mixture plus asbestos and calcium carbonate filler made, it can use hot-pressing or calendering method Production, size is generally 303mm × 303mm, thickness 2mm, the shape of a square, triangular and trapezoidal and so on. Pvc asbestos floor tiles in addition to the common advantages of pvc floor that is easy to clean, wear-resistant, easy construction, its characteristics are low cost, good resistance to fire, especially cigarette butts, stepping on the cigarette but does not damage the surface, so the application is more extensive.
2, pvc tiles due to the asbestos fiber damage to health when producing tiles, so in recent years began to produce only calcium carbonate filler tiles that is pvc floor tiles. Since asbestos is not used, special techniques must be used to ensure its dimensional stability and other properties, and still meet the standards of pvc asbestos floor tiles. The pvc floor tile production process is basically the same as the pvc asbestos floor tile. Most of our country's current production is asbestos-free pvc tiles.
3, embossed printing pvc floor tiles pvc floor tiles are generally plain, or only to pull flowers processing. The embossing printing device can be set behind the calender. The pattern of production can be irregular or regular. Since the pattern is printed on embossing, it is concave and it is not easy to wear during use.
4, broken grain floor tile broken grain pattern floor tile is a pattern through the bottom floor tiles, patterns will not disappear due to wear and tear. It uses the same raw materials as pvc asbestos tiles, and the process is different. Firstly, after the raw material is crushed, the raw materials are broken into various colored granules that are not in a regular shape, different colored granules are mixed, and then the mixture is calendered into pieces, and then waxed, polished and then punched into tiles, so that the surface has special Pattern.
5, pvc soft coil floor soft pvc coil floor is generally rolled production. There are less fillers and more plasticizers than pvc tiles. General use of the four-roll calender factory plastic pvc, after the smooth surface after rolling smooth, cut edge after cooling is the product. The specifications of coils vary from country to country, and China also has various specifications. Soft pvc coil flooring material is soft, there is a certain degree of flexibility, comfortable feet, but the surface is less than smoke resistance to pvc tiles.
6, printed foam plastic floor is mostly a semi-rigid plastic floor. The main raw material is also pvc resin. The difference is that in addition to the surface layer printing decoration treatment, the middle layer is a pvc paste with 2% AC foaming agent, and a pvc foam layer is formed during calender heating to improve the flexibility and sound insulation of the floor. , Insulation, asbestos paper, non-woven cloth, or glass fiber cloth for grass-roots. In order to increase the three-dimensional effect of the surface printing pattern, chemical embossing is adopted, which adds a foaming inhibitor to the printing ink of a certain kind of pigment, and then penetrates into the expandable pvc paste after printing so that the foam is foamed. At the time, due to the inhibitory effect, a part of the foam is not foamed and is recessed, and the foaming is convex, so that the pattern or the flower shape has a three-dimensional effect. In order to increase the wear resistance of the floor surface, a transparent PVC paste containing no pigment or filler is also applied on the printing layer.
7, film color printing pvc floor to improve the anti-slip performance of plastic flooring, in the surface color printing layer coated with transparent pvc paste and then embossed to form a coated color pvc floor.
8, other (1) anti-static pvc floor. In the production of ingredients, the use of appropriate fillers, and the use of antistatic agents and other additives to make the floor with anti-static function, suitable for posts and telecommunications, laboratories, computer rooms, precision instrumentation control shop floor laying.
(2) dust-proof floor. Pvc resin is based on the material, non-metallic inorganic materials for the filler, doped with moisture absorption dust additive. After dusting, it is suitable for textile workshops and dust-proof meter workshops that require air purification.
(5) Selection of plastic flooring There are various types of flooring with a wide variety of colors, which provides a wide range of reasonable choices. The principle that should be followed in floor selection is: First, it should be selected according to the grade and function of the building. For the national and provincial and city-level important buildings, hard and semi-hard multi-layer laminate flooring with higher grades and longer durability can be selected; for general buildings and residential houses, semi-rigid or soft floor rolls can be selected. board. In the colors and patterns, it is necessary to refer to the nature of the building or be magnificent, or noble and solemn, or elegant and quiet. In short, the selection of floor varieties and design patterns should be coordinated with the overall architectural design of the building so that it is both durable and has a decorative effect on the building.
Introduction of PVC flooring
In the 1970s, plastic flooring was widely used in Western Europe, the United States, Japan, and other industrial countries. After China entered the 1980s, plastic flooring was also put into mass production.