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There are two main types of resins.
Rosin, benzoin, etc. are natural resins.
Phenolic resins, polyvinyl chloride resins, etc. are synthetic resins.
Synthetic resin refers to the resin product obtained by chemical synthesis of simple organic matter or chemical reaction of some natural products.
Resin is the main raw material for the manufacture of plastics, and resin is also used to make coatings (film-forming substances, such as Guangdong Sanying resin and other products), adhesives, insulating materials, etc. There are two types of resins: natural resins and synthetic resins. Natural resin refers to the amorphous organic substances obtained from animal and plant secretions in nature, such as rosin, amber, shellac, etc.
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Synthetic resin is a synthetic class of high molecular weight polymers. It is a resin that has the inherent characteristics of natural resins or exceeds them.
The most important application of synthetic resins is in the manufacture of plastics. In order to facilitate processing and improve performance, additives are often added, and sometimes they are also directly used for processing and molding, so they are often synonymous with plastics. Synthetic resins are also a basic raw material for the manufacture of synthetic fibers, coatings, adhesives, insulating materials, etc.
Synthetic resin industrial products can be divided into general resin and special resin. General resins have large output and low cost, and are generally used for general consumer goods or durable goods, and the representative varieties are five types of synthetic resins: polyethylene, polypropylene, polyvinyl chloride, polystyrene and ABS.
Special resin generally refers to the resin produced for special purposes, the output is small, the production cost is high, for example, it can replace metal for machinery, electronics, automobiles and other departments, engineering plastics belong to the category of special resin.
Important engineering plastics include polyamide, polycarbonate, polyoxymethylene, polybutylene terephthalate, modified polyphenylene ether and polytetrafluoroethylene. Another type of specialty resin is thermoplastic elastomers, which have rubber-like elasticity and are remoldable when heated.
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Synthetic resins are a class of synthetic resinsPolymers。It can be in a plastic flow state under the action of external force, and some properties are similar to those of natural resins.
Synthetic resin is one of the world's three major synthetic materials, the other two are synthetic rubber and synthetic fibers, of which synthetic resin is the synthetic material with the highest production and consumption. Synthetic resin is a material that can be melted or softened at a certain temperature, and can be qualitatively cured, with different compositions and synthetic properties. All kinds of plastic products are a typical representative.
Synthetic resins include five general resins:
Polyethylene PE, polyvinyl chloride PVC
Polypropylene PP, polystyrene PS, ABS resin. Among them, PE is mainly divided into linear low-density polyethylene (LLDPE), low-density polyethylene (LDPE), and high-density polyethylene.
HDPE). The plastics traded by DCE actually refer to linear low-density polyethylene (LLDPE).
The above information refers to Encyclopedia - Synthetic Resin.
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Hello dear! We'll be happy to answer for you. Is there a difference between polymeric resin and synthetic resin Answer:
Hello dear, there is a difference, dear. Polymeric resins are also known as polyaddition resins. A resin synthesized by polymerization (addition).
It is formed by molecules containing double or triple bonds, or by bifunctional molecules formed by ringing of cyclic molecules. It is generally a linear polymer with thermoplasticity. Homogeneously polymerized resin, which is made from a monomer, such as polyethylene, polystyrene, polypropylene, polyvinyl chloride, polyvinyl acetate and polyacrylonitrile.
Synthetic resin is a synthetic class of high molecular weight polymers. It is a resin that has the inherent characteristics of natural resins or exceeds them. ASTM D883-65T defines synthetic resins as organic substances with undefined molecular weights but often high molecular weight solids, semi-solids, or pseudo-(quasi-)solids, which have a tendency to flow when stressed, often have a softening or melting range, and are shell-like when broken.
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Summary. Hello, polyester resin is a synthetic resin.
Hello, polyester resin is a synthetic resin.
Polyester resin is a polymer material made by polycondensation of diols or diacids or polyols or polyacids.
Polyester resin is divided into saturated polyester resin and unsaturated polyester resin. Unsaturated polyester adhesives are mainly composed of unsaturated polyester resins, pigments and fillers, initiators and other additives. The adhesive has small viscosity, easy wetting, good processability, and the cured adhesive layer has a large hardness and seepage loss, good transparency, high brightness, rapid curing under pressure at room temperature, good heat resistance, and excellent electrical properties.
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