Product Name:Thermoplastic urethanes TPU glass fiber compound
Thermoplastic urethanes TPU ong glass fiber compound Products customized processing.
TPU is divided into three types: polyester type TPU, polyether type TPU and polybutadiene type TPU, which respectively contain ester group, ether group or butenyl group;
TPU+GF long glass fiber has excellent performance; its application can penetrate into various industrial fields: automotive manufacturing, paving materials, shock-absorbing cushioning materials, tanning, construction and other fields;
TPU raw materials have particularly good wear resistance; high mechanical strength, good oil resistance; excellent chemical resistance; but the shortcomings of TPU materials are poor formability and relatively high cost.
The main processing methods of TPU+GF ong glass fiber are injection molding and extrusion. The injection conditions are mainly related to the variety of raw materials, the shape of the product and the type of injection molding machine. In the process of injection molding, TPU is the first. The material is melted at a certain temperature, and then injected into the mold under a certain pressure, and rapidly cooled and shaped, which mainly bears the shearing force; because the TPU melt viscosity is high, the melting range is narrow, and the fluidity is Poor, this requires that the viscosity and morphology of the synthesized TPU must be constant, which makes TPU extrusion molding process performance requirements and injection molding TPU can be said to be completely different, they are less shearing This can form a completely uniform melt, making the surface of the product uniform and free of defects.
At present, since the beginning of the 21st century, with the advancement of the polyurethane industry and the expansion of the application of polyurethane, the research on TPU modification and modification methods will become more and more important and valued;
