Nowadays more and more things are made from plastic
Group of polymer substances, material derived from petroleum that is easily shaped and molded when heated. Synthetic polymers are often referred to as "plastics", such as the well-known polyethylene and nylon. However, most of them can be classified in at least three main categories: thermoplastics, thermosets and elastomers
Plastics are mainly composed of synthetic resin. Certain temperature and pressure conditions of a certain shape can be made of plastic, at normal temperature to maintain the shape of the same material.
Plastic is lighter material, its relative density between 0.90—2.2. This feature can be used to make plastic products requirements to reduce the production of self-respect. The vast majority of plastic to acids, alkalis and other chemical substances have a good corrosion resistance. Ordinary plastic are poor conductor of electricity. Therefore, it has a wide range of applications in the plastic in the electronics industry and machinery industry.
There are two different ways for development direction of plastic. One of them is improve performance and other is development of functional.
The world from the current rate of plastic industry. The first two is Germany and Sweden , after these are Japan and some of European countries, America is shower .
At present, the overseas development of plastic packaging has the following trends: 1.Copolymerization composite packaging film. This will greatly enhance the co-extruded plastic and tensile properties.2 Complex multi-functional thin films. A large number of foreign films to develop complex multi-functional role in further refining.
Some plastic itself is a simple resin Such as polyethylene, polystyrene, etc.
At present industrial production of plastics have been hundreds of types，Which is also commonly used in more than 60 kinds of.
Common classification is as follows:
(1) After heating according to the plastic performance division.
1.Thermosetting plastic.
2.Thermoplastics
(2)The scope of the application by the division of plastic
1. GE Plastics
2. Engineering Plastics
(3)Attainment by combustible
1. Flammability of plastic
2. Retardant plastics
In our daily life, there are many different types of plastic. Now I will introduce several major plastic.
(1) Polyethylene plastic Branch
Polyethylene plastic is a polymer of ethylene monomers. Raw material is oil, coke oven gas or alcohol. Molecular structure of polyethylene is ：（—CH2δΈ€CH2—） n
(2) Polypropylene Plastic
Polypropylene plastic is a propylene in the methane-based aluminum and titanium trichloride catalyst and to gasoline as the solvent for the polymer obtained. The structural formula for polypropylene is [—CH2—CH—] n. It belongs to linear macromoleculest
(3)Polystyrene plastic
Polystyrene is a polymer made from styrene monomer plastic linear structure.
(4) PVC
PVC is made by polymerization of vinyl chloride monomer and is one of commonly used thermoplastics
(5)Bakelite
It is based on phenol and formaldehyde as raw materials and
acid or alkaline catalyst into phenol-formaldehyde resin under the polycondensation. Accession can be made of plastic wood filler
(6) Urea-formaldehyde plastics
Urea-formaldehyde resin is a urea-formaldehyde synthesis of endothelin.
（7）Plexiglass
PMMA is commonly known as the polymethyl methacrylate,
It is by the polymerization of methyl methacrylate monomer resin from the linear
（8）Cellulose nitrate plastic
Cotton linter cellulose nitrate plastics or other grasses, wood and other natural cellulose into cellulose nitrate by nitrate, and then adding 20-30% of the plasticizer of plastics made from camphor
（9）Application of Plastic
It is used for industrial technology
Plastic products is important in our lives. Hope because of my introduce, you can know more about plastic prodycts.
Group of polymer substances, material derived from petroleum that is easily shaped and molded when heated. Synthetic polymers are often referred to as "plastics", such as the well-known polyethylene and nylon. However, most of them can be classified in at least three main categories: thermoplastics, thermosets and elastomers
Plastics are mainly composed of synthetic resin. Certain temperature and pressure conditions of a certain shape can be made of plastic, at normal temperature to maintain the shape of the same material.
Plastic is lighter material, its relative density between 0.90—2.2. This feature can be used to make plastic products requirements to reduce the production of self-respect. The vast majority of plastic to acids, alkalis and other chemical substances have a good corrosion resistance. Ordinary plastic are poor conductor of electricity. Therefore, it has a wide range of applications in the plastic in the electronics industry and machinery industry.
There are two different ways for development direction of plastic. One of them is improve performance and other is development of functional.
The world from the current rate of plastic industry. The first two is Germany and Sweden , after these are Japan and some of European countries, America is shower .
At present, the overseas development of plastic packaging has the following trends: 1.Copolymerization composite packaging film. This will greatly enhance the co-extruded plastic and tensile properties.2 Complex multi-functional thin films. A large number of foreign films to develop complex multi-functional role in further refining.
Some plastic itself is a simple resin Such as polyethylene, polystyrene, etc.
At present industrial production of plastics have been hundreds of types，Which is also commonly used in more than 60 kinds of.
Common classification is as follows:
(1) After heating according to the plastic performance division.
1.Thermosetting plastic.
2.Thermoplastics
(2)The scope of the application by the division of plastic
1. GE Plastics
2. Engineering Plastics
(3)Attainment by combustible
1. Flammability of plastic
2. Retardant plastics
In our daily life, there are many different types of plastic. Now I will introduce several major plastic.
(1) Polyethylene plastic Branch
Polyethylene plastic is a polymer of ethylene monomers. Raw material is oil, coke oven gas or alcohol. Molecular structure of polyethylene is ：（—CH2δΈ€CH2—） n
(2) Polypropylene Plastic
Polypropylene plastic is a propylene in the methane-based aluminum and titanium trichloride catalyst and to gasoline as the solvent for the polymer obtained. The structural formula for polypropylene is [—CH2—CH—] n. It belongs to linear macromoleculest
(3)Polystyrene plastic
Polystyrene is a polymer made from styrene monomer plastic linear structure.
(4) PVC
PVC is made by polymerization of vinyl chloride monomer and is one of commonly used thermoplastics
(5)Bakelite
It is based on phenol and formaldehyde as raw materials and
acid or alkaline catalyst into phenol-formaldehyde resin under the polycondensation. Accession can be made of plastic wood filler
(6) Urea-formaldehyde plastics
Urea-formaldehyde resin is a urea-formaldehyde synthesis of endothelin.
（7）Plexiglass
PMMA is commonly known as the polymethyl methacrylate,
It is by the polymerization of methyl methacrylate monomer resin from the linear
（8）Cellulose nitrate plastic
Cotton linter cellulose nitrate plastics or other grasses, wood and other natural cellulose into cellulose nitrate by nitrate, and then adding 20-30% of the plasticizer of plastics made from camphor
（9）Application of Plastic
It is used for industrial technology
Plastic products is important in our lives. Hope because of my introduce, you can know more about plastic prodycts.
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