composition of plastics

The main composition of plastics is a synthetic resin.Resin this word at the beginning from move the fat that the plant secretes but get, such as loose joss-stick, insect gum etc., the resin means to haven't mixed with various additive currently of Gao Ju Wu.The resin shares 40%~100% of plastics total weight around.The basic function of plastics is mainly decided to resin of man's natural character, but the additive has already emphasized to want a function as well.Some plasticses basically from synthetic resin constitute,plastic bag manufacturer don't contain or contain the additive less, like organic glass, gather a styrene etc..So-called plastics, in fact it is in the synthetic resin of a kind of, the shape is similar to pine tree fat within natural resin, but because of carries on artificial to synthesize after chemistry means, but is called that it is a plastics.

Experiments the definition that the association descends according to the American material, the plastics is 1 kind to take the high molecular weight organic material as the material of main composition, it presents solid shape while putting the last hand, in the process of making and processing in, can lend fluxion(flow) shape.

Therefore, explains that we can get following few understanding through this:
●It is a high mark son organic compound
●It can various type existence for example the liquid solid gum body the aqua wait
●It can take shape(moldable)
●The category are of a great variety, because of different of single body and it constitutes to synthesize different plastics
●The wide range of application product presents a diversification
●Have a different property
●Can use method(processing method) plastics and resin of the processing of dissimilarity, these two words to also often mix to use.Figure 1.1 is the process of plastics creation.

The plastics can classified intotoilet facial paper maunfacturer hot solid and hot Su two types of, the former can not re- mold an usage, the latter can repeat production again and again.The structure of plastics Gao member is basic to have 2:The first is line type structure, have the high mark son compound of this kind of structure to be called a line type high mark son compound;The second is body figure structure, have the high mark son of this kind of structure to combine to be called the body figure high mark son compound.Some high mark sons take to pay a chain and is called to pay chain high mark son and belong to a line type structure.Some high mark sons although the member has been already handed over to unite,hand over allied less, be called net structure, belong to body figure structure.

The member structure of Gao member categorizes:Grain
(A)Line type structure
(B)line type structure(take have already paid a chain)
(C)net structure(member chain the jot hand over allied)
(D)body figure structure(member chain in great quantities hand over allied)
Two kinds of different structure, express two kinds of contrary functions.Line type structure(include to pay chain structure) Gao Ju Wu because of existing independent member, so have flexibility, plasticity, can fuse in the melting agent, heat ability meltdown, degree of hardness and brittleness smaller characteristics.Body figure structure Gao Ju Wu because of having no the big member of independence existence, so there are no flexibility and plasticity, indissoluble with meltdown, can dissolve bulge, degree of hardness and brittleness bigger.Plastics two kinds of high mark sons of structure then all have,hong kong attractions from line type what high mark son make into is a hot Su plastics, is been a hot solid sex plastics by body figure high mark what son make into.