Plastic alloy refers to two or more than two kinds of plastic blend of a material, both in the function of the excellent function of two materials, it is not a brief combination of two materials, must have special equipment and common technology and additives. Such as PC-ABS PC-PBT PC-PMMA TPU-TPR.

 

 

PC-ABS

 

PC-ABS is a blend material of PC and ABS. It is usually supplied in the form of granule after blending. If after mixing two kinds of materials briefly only, direct injection molding, action is very poor, can present stratified phenomenon.

 

The advantage of PC is just and tough, the defect is stress cracking, viscosity; The advantage of ABS is good fluidity, but the external hardness is low; In this way, PC-ABS retains the advantages of both materials.

 

PC-ABS has high resistance to stress cracking. Its mechanical function is somewhere in between.

 

 

PC-PBT

 

PC-PBT is a blend material of PC and PBT. It is usually supplied in the form of granule after blending and granulation. If after mixing two kinds of materials briefly only, direct injection molding, action is very poor, can present stratified phenomenon.

 

The advantage of PC is room temperature just and tough, but in the case of high temperature, thermal deformation is serious. Defects are stress cracking and high viscosity. , the advantages of PBT is that its rigidity is not affected by temperature, deformation is small; The blended material PC-PBT thus retains the strengths of both.

 

PC-PBT has higher external hardness, higher rigidity and endurance, but also has a higher resistance to high temperature deformation performance, but also has a higher resistance to stress cracking performance; Its mechanical properties lie somewhere in between.

 

High temperature deformation resistance is of primary importance for large shell materials.

 

 

PC-PMMA

 

PC-PMMA is a blend material of PC and PMMA. It is usually supplied in the form of granule after blending. If after mixing two kinds of materials briefly only, direct injection molding, action is very poor, can present stratified phenomenon. PC and PMMA are high transparent materials, but the two of the refractive index of light is not the same, if the two materials, it will still be stratified, it is because of stratification, will find a common scene - - it can announce the special light.

 

Usually the special light powder toxic, can not be used for food packaging, however, PC-PMMA plastic transparent, tasteless, non-toxic, together can announce the special light, it is a senior food packaging materials.

 

 

TPU

 

TPU is a kind of thermoplastic elastomer, commonly known as Ulatan. PU is the abbreviation of polyurethane, it is mainly used to produce a foaming type of material, which is often said to be a sponge, but it can not be used for injection molding. Sponge is a kind of high elastic material. In order to be produced by injection molding, we used the modified method. TPU natural color light yellow, to feed grain shape. Lustless, elastic.

 

The advantage of TPU is that it has excellent elasticity at low temperature and normal temperature, similar to rubber. It has excellent oil resistance, excellent wear resistance and puncture resistance, and excellent outdoor aging resistance. The fact that it has no noise against the ground makes it the best material for making tires. Others include sealing rings, shock absorbers and so on.

 

 

TPR

 

TPR stands for thermoplastic rubber. R is short for rubber, rubber is primarily used to produce tires of a material, but it can not be used for injection molding. Rubber is a kind of high elastic material, usually by the method of molding, vulcanization technology production, we can use injection molding method production, on the modified method. TPR, supplied in granule shape. Lustless, elastic.

 

 

In the practical application, PC-ABS, PC-PBT, PC-PMMA widely used "Lubotai" YY-503A; TPU with YY - 503; YY-5035 is mainly used for TPR; It can help these alloys to improve the overall component compatibility, prevent peeling, delamination, cracking, and disperse fillers, improve the physical properties and apparent effect of products.