Plastic furniture relative to traditional solid wood furniture, rattan furniture, iron furniture, etc., is a new performance of furniture, it is colorful, different shapes, lightweight compact, wide application, maintenance convenience to the vast number of consumers like, in modern furniture, this new material through the model pressed into chairs sit, or press into a variety of films, as soft furniture of the Mongolian fabrics, also has a variety of color plastic hose in the steel pipe winding into a soft chair [1].

Classify plastics by using properties

According to the use of plastic different characteristics, generally can be divided into general plastics, plastics and special plastic three types.

① General Plastics

Generally refers to the production of large, wide use, molding good, inexpensive plastics. General Plastics have five varieties, namely polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polystyrene (PS) and acrylonitrile-butadiene-styrene polymer (ABS). They're all thermoplastic.

② Engineering Plastics

Generally refers to the ability to withstand a certain external force, with good mechanical properties and high resistance, low temperature performance, good dimensional stability, can be used as engineering structures of plastics, such as polyamide, Polysulfone and so on.

In the engineering plastics, it is divided into general Engineering Plastics and special Engineering Plastics two major categories.

General Engineering Plastics include: polyamide, POM, polycarbonate, modified polyphenylene ether, thermoplastic polyester, ultra-high molecular weight polyethylene, methyl isoprene polymer, vinyl alcohol copolymer and so on.

Special Engineering Plastics have cross-linked type of non-crosslinking.

Crosslinking type: Poly-amino bismaleimide, poly triazine, cross-linked polyimide, heat-resistant epoxy tree finger. The non-crosslinking type is: Polysulfone, polyether sulfone, polyphenylene sulfide, polyimide, polyether ether ketone (peek) and so on.

③ Special Plastics

Generally refers to the special function, can be used in aviation, aerospace and other special applications of plastics. such as fluorine plastics and silicone has prominent high temperature, self-lubricating and other special functions, enhance plastics and foam plastics have high strength, highly cushioning and other special properties, these plastics are the category of specialty plastics.

A. Strong plastics: reinforcement of plastic materials can be classified into granular (such as calcium-plastic reinforced plastics), fibrous (such as glass fiber or glass cloth reinforced plastics), flake (such as mica reinforced plastics) three. According to the material can be divided into Burkina Faso reinforced plastics (such as broken cloth or asbestos reinforced plastics), inorganic mineral filler plastics (such as quartz or mica filled plastic), fiber reinforced plastics (such as carbon fiber reinforced plastics) three.

B. Foam Plastics: Foam Plastics can be divided into rigid, semi-rigid and soft foam three kinds. Rigid cellular plastics are not flexible, compression hardness is very large, only to achieve a certain stress value to produce deformation, the stress can not be restored after the dissolution of the original; Soft foam is flexible, the compression hardness is very small, easy deformation, stress relief can be restored, the residual deformation is small; the flexibility and other properties of semi rigid foam are between rigid and soft foam.