PVC Suction Hose Material Classification
PVC Suction Hose As one of the main varieties of polymer plastic, there are currently more than 50 kinds of commonly used, the world a total of more than 300 kinds. There are a variety of classification methods for plastic, plastic classification is currently no exact classification, the general classification is as follows:
1. According to the physical and chemical properties of plastic points by the performance of plastic Xingtai performance, can be divided into thermoplastic and thermosetting plastics. Thermoplastics can be heated in a specific temperature range of softening cooling curing, so easy processing and processing, is conducive to the regeneration of plastic products. The mechanical properties of this type of plastic is better, but the rigidity and heat resistance is poor. Thermoplastics accounted for more than 70 percent of the total production of plastic, large tonnage varieties are polyethylene polypropylene and so on. Thermosetting plastic is a specific temperature of the monomer or prepolymer heated to flow, and cross-linked to produce non-melting products. Cross-linked polymer can only be decomposed after heating, can not return to the plastic state. This kind of plastic has the characteristics of high heat resistance and easy deformation under load. Thermosetting plastics are the main varieties of amino plastic unsaturated polyester.
2. According to the use of plastic sub-general plastic: generally refers to the production of large-scale wide-forming good performance in general, cheap plastic. Mainly used as non-structural materials, such as polyethylene polypropylene and so on. Engineering plastics: generally refers to can withstand a certain external force, and have good mechanical properties and dimensional stability, at high and low temperatures can still maintain its excellent performance, can be used as engineering structural parts of the plastic. Such as ABS nylon polymethanol and so on. Special plastic: generally refers to a special function (such as heat self-lubricating, etc.) applications with special needs of plastic. Such as silicone, due to the excellent performance of engineering plastics, its use value is far more than general plastic, the development speed is very fast.
3.PVC Suction Hose According to the plastic molding method sub-molding plastic: for molding with the resin mixture. Such as general thermosetting plastics. Laminated plastic: refers to the resin impregnated with fiber fabric, hot and pressed into a whole material. Injection Extrusion and Blow Molding Plastics: generally refers to the melt at the barrel temperature melt, in the mold Xu Su hardened resin mixture. Such as general thermoplastics. Casting plastic: in the case of no pressure or a little pressure, pouring in the abrasive can be hardened into a certain shape of the liquid resin mixture. Such as nylon. Reaction injection molding compound: generally refers to the liquid raw materials, pressurized into the mold cavity, so that the reaction of the finished product. Such as polyurethane.
4. According to the plastic semi-finished products and products sub-mold powder: also known as plastic powder, mainly by the thermosetting resin (such as phenolic) and filler, etc. by the full mixing and crushing derived. Such as phenolic plastic. Reinforced plastic: refueling reinforced materials and some mechanical properties than the original resin has a greater increase in a class of plastic. Foam: There are numerous microporous plastics in the whole. Film: generally refers to the thickness of 0.25mm below the flat and soft plastic products.
5.PVC Suction Hose According to the number of plastic components, can also be divided into a single component of plastic and multi-component plastic. The single component plastic is essentially a synthetic resin containing only a small amount of auxiliaries such as a fuel lubricant, such as polyethylene polypropylene polystyrene plastic. Multi-component plastic in addition to containing synthetic resin, but also contains more additives, such as plasticizer stabilizer filler modifier, such as polyvinyl chloride phenolic plastic.