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Polymer chemistry and plastic base
by：CSSSLD
2021-02-03
Injection molding processing of synthetic material industry development scale and speed of development depends largely on the development and application of the raw material monomer, the carbonization of coal and calcium carbide industry is the foundation of the earliest production of monomer.
After the 1950 s, chemical raw materials from coal to oil and gas, many originally developed from coal chemical raw material monomer, almost can use different process routes, extracted from oil and gas.
synthetic polymer compound, hereinafter referred to as synthetic materials, is a plastic, rubber, chemical fiber, coating, adhesive is a kind of basic chemical products such as raw material, they came from modern organic chemical industry, is a simple low molecular weight compounds as raw material, after a certain chemical reaction of polymerization. Therefore, also known as polymers or polymer, polymer compounds used in the synthesis of high molecular compound low molecular material as monomers.
natural polymer is gradually formed in the process of biological growth, and synthetic polymer is made from low molecular material through a series of chemical reactions into polymer can be controlled. Before being a synthetic materials industrial production, the original plastic is made from natural polymers by modification. Since 1872, found that with phenol and formaldehyde could be synthesized phenolic resin, began the history of the industrialized production of synthetic materials and plastic products.
in most polymers, polymer as polymer is more exact and more universal, this is because the name corresponding with polymer and oligomers, which are relatively low molecular weight of polymer, but the oligomer because of low molecular weight and strength is too low, cannot be used as plastic material. In natural polymer material, asphalt, rosin, amber and other kind of material is called a resin or natural resin.
the so-called resin, namely from trees secretion of grease on the surface of the material. Therefore, using the name of a natural resin, synthetic polymer materials also known as synthetic resin. Such as thermosetting resin in phenolic resin, unsaturated resin, epoxy resin, etc. Compounds and macromolecular polymer, polymer, synthetic resin and other terms are only different on the name, it contains the meaning of most cases are the same.
low molecular compounds and the molecular weight of polymer compounds the difference is larger. In fact most of the organic compounds, the relative molecular mass of more than 100 only, relative molecular mass in more than 500 very little, so the high molecular compound is different from the general injection molding processing organic compounds, become an independent system of large molecules. Polymer can be divided into natural macromolecular compounds and synthetic polymer compounds. Natural polymer compounds, such as natural rubber, cellulose, starch, protein, they directly from nature.
high polymer material, due to the different USES can be divided into fiber, rubber, plastic, adhesives, paint, etc. Among them, fiber, rubber, plastic is often referred to as the three major synthetic materials. Visible polymer material and the plastic material should be two different concepts. Polymer materials is the basic raw material of plastic, it is pure polymer materials. And plastic is added to polymer material processing and improve the performance of all kinds of auxiliary materials, after hot working of plastic materials or products.
more excellent articles: plastic of high energy efficiency, click directly.
http://www。 csssld。 cn//html/2016/Info_1231/449。 HTML
nantong on suye's official website: http://www. csssld。 cn//
synthetic polymer compound, hereinafter referred to as synthetic materials, is a plastic, rubber, chemical fiber, coating, adhesive is a kind of basic chemical products such as raw material, they came from modern organic chemical industry, is a simple low molecular weight compounds as raw material, after a certain chemical reaction of polymerization. Therefore, also known as polymers or polymer, polymer compounds used in the synthesis of high molecular compound low molecular material as monomers.
natural polymer is gradually formed in the process of biological growth, and synthetic polymer is made from low molecular material through a series of chemical reactions into polymer can be controlled. Before being a synthetic materials industrial production, the original plastic is made from natural polymers by modification. Since 1872, found that with phenol and formaldehyde could be synthesized phenolic resin, began the history of the industrialized production of synthetic materials and plastic products.
in most polymers, polymer as polymer is more exact and more universal, this is because the name corresponding with polymer and oligomers, which are relatively low molecular weight of polymer, but the oligomer because of low molecular weight and strength is too low, cannot be used as plastic material. In natural polymer material, asphalt, rosin, amber and other kind of material is called a resin or natural resin.
the so-called resin, namely from trees secretion of grease on the surface of the material. Therefore, using the name of a natural resin, synthetic polymer materials also known as synthetic resin. Such as thermosetting resin in phenolic resin, unsaturated resin, epoxy resin, etc. Compounds and macromolecular polymer, polymer, synthetic resin and other terms are only different on the name, it contains the meaning of most cases are the same.
low molecular compounds and the molecular weight of polymer compounds the difference is larger. In fact most of the organic compounds, the relative molecular mass of more than 100 only, relative molecular mass in more than 500 very little, so the high molecular compound is different from the general injection molding processing organic compounds, become an independent system of large molecules. Polymer can be divided into natural macromolecular compounds and synthetic polymer compounds. Natural polymer compounds, such as natural rubber, cellulose, starch, protein, they directly from nature.
high polymer material, due to the different USES can be divided into fiber, rubber, plastic, adhesives, paint, etc. Among them, fiber, rubber, plastic is often referred to as the three major synthetic materials. Visible polymer material and the plastic material should be two different concepts. Polymer materials is the basic raw material of plastic, it is pure polymer materials. And plastic is added to polymer material processing and improve the performance of all kinds of auxiliary materials, after hot working of plastic materials or products.
more excellent articles: plastic of high energy efficiency, click directly.
http://www。 csssld。 cn//html/2016/Info_1231/449。 HTML
nantong on suye's official website: http://www. csssld。 cn//
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