What is the polymer gate

Polymer doors, is to use polymer materials door. Polymer materials is a high molecular weight compounds consisting of the material. We come into contact with many natural materials are usually composed of polymer materials, such as natural rubber, cotton, and other human organs. Synthetic chemical fiber, plastics and rubber, etc. The same is true. In life in general, said a large number of used, has been formed high molecular-scale industrial production of polymer materials for the GM, said a special purpose and function as a functional polymer.
Polymer is a form of life. All of life can be seen as a collection of polymer.
Branches, animal skins, straw and other natural polymer materials is similar to human or biological human intelligence was first used in ancient material. In the long river of history, paper, rubber, silk and other polymer processing comes from natural products has been the development of human civilization with intertwined.
From the beginning of the nineteenth century, mankind began to use the modified natural polymer materials. Nitrocellulose cremation rubber and plastics (celluloid) are two typical examples.
Into the twentieth century, the polymer material has entered a phase of great development. First of all, in 1907, Leo Bakeland the invention of Bakelite. 1920 Hermann Staudinger proposed the concept of polymer and created the word Makromolekule. Twenties at the end of the twentieth century, the beginning of large-scale use of PVC. The early thirties the twentieth century, the beginning of large-scale production of polystyrene. Thirties at the end of the twentieth century, the beginning of the production of nylon.
In the wake of the twentieth century after the great development of polymeric materials in the face of the whole world had a significant impact. Time magazine that the plastics of the twentieth century the most important inventions of mankind. Polymer materials in the field of culture and human way of life also had a significant impact.
By end-use polymer materials generally fall into five categories, general, that is, plastic, rubber, fibers, coatings and adhesives. General mechanical properties of polymer materials polymer physics see.
Plastic
Plastic according to the situation after heating can be divided into thermoplastics and thermoset plastics. Soften when heated to form a polymer melt the plastic as a thermoplastic, the thermoplastic main polythene (PE [1]), polypropylene (PP [2]), polystyrene (PS [3]), poly A methacrylate-based (PMMA, commonly known as PMMA [4]), polyvinyl chloride (PVC [5]), nylon (Nylon [6]), polycarbonate (PC [7]), polyurethane (PU [8] ), polytetrafluoroethylene (Teflon, PTFE [9]), polyethylene terephthalate (PET, PETE [10]), when heated to curing to form a cross-linked structure of plastics do not melt that for thermosetting plastics: common epoxy resin [11], phenolic plastics, polyimide, melamine formaldehyde resin.
Plastic processing methods including injection, extrusion, film pressure, hot pressing, blow molding and so on.
Rubber
Rubber and can be divided into natural rubber and synthetic rubber. The main component of natural rubber is polyisoprene. The main varieties of synthetic rubber are butyl rubber, butadiene rubber, chloroprene rubber, EPDM, acrylic rubber, polyurethane rubber, silicone rubber, fluorine rubber and so on.
Fiber
Synthetic polymer materials is another important application. Common synthetic fibers including nylon, polyester, acrylic fiber polyester fiber, aramid fiber and so on.
Paint
Tu paint is attached to industrial or household products or surface appearance of a layer of protective effect of polymer materials.
Commonly used in industrial coatings are epoxy, polyurethane, etc..
Adhesive
Sticky and the agent is another important class of polymer materials. A long time ago human beings began to use starch, natural rubber adhesive polymer materials.
Through its use of modern adhesives can be divided into polymer type, such as epoxy resin; hot melt type, such as nylon, polyethylene; compression type, such as natural rubber; water-soluble type, such as starch.