High quality polypropylene curb stone mold performance and advantages

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100%

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100%

抗断裂：

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Generally, the commonly used models of high-quality curb stone molds
are processed using raw materials with a relatively tight internal molecular structure. This feature is mainly reflected in the reliability characteristics of the curb stone mold during actual use. The difference is that This material requires corresponding care and maintenance, because the roughness of concrete is very high. In order to increase the overall durability of the mold, some manufacturers will also choose to increase the wall thickness of the mold to increase the strength and have a higher of support strength. Polypropylene resin is a white waxy solid with a very low density, between . Polypropylene has good comprehensive properties, rich sources of raw materials, simple production process, and low price. Compared with polyethylene, its mechanical properties are higher in strength, stiffness and hardness, and its gloss is also good. But it is still relatively low among plastic materials. If high strength is required, highly crystalline polypropylene or filled or reinforced polypropylene can be used. The impact strength is highly dependent on temperature, and its impact strength is low, especially at low temperatures. The impact strength of polypropylene is also related to factors such as molecular weight, crystallinity, and crystal size.
.Polypropylene has high crystallinity and regular structure, so it has excellent mechanical properties. Its strength, hardness and elasticity are relatively high. However, at room temperature and low temperature, due to its high regularity of molecular structure, it The impact strength is poor. When the molecular weight increases, the impact strength also increases, but the molding and processing performance becomes worse. Polypropylene also has excellent bending fatigue resistance, and its products can be bent several times at room temperature without damage.
3. Polypropylene has good heat resistance, with a melting point of ~°C. The products can be sterilized at temperatures above ~°C and will not deform without external force. The embrittlement temperature is at Below the temperature embrittlement will occur.
.Polypropylene has excellent high-frequency insulation properties. Since it hardly absorbs water, its insulation properties are not affected by humidity. It has high dielectric properties and can be used to make heated electrical insulation as the temperature rises. Paper products.