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Best Selling Various Models Plastic Blow Molding Machines

Best Selling Various Models Plastic Blow Molding Machines

Requirements and introduction of blow molding materials The development and application of blow molding technology is so wide that it is complementary to the development of blow molding materials. The blow molding materials have been developed by the initial LDPE, PET, PP and PVC products to blow molding engineering plastics, rubber, and some composite materials.

Best selling various models plastic blow molding machines



Requirements and introduction of  blow molding materials

The development and application of blow molding technology is so wide that it is complementary to the development of blow molding materials. The blow molding materials have been developed by the initial LDPE, PET, PP and PVC products to blow molding engineering plastics, rubber, and some composite materials.

1) special requirements for all kinds of plastics for plastics

A. extrusion blow molding

Extrusion blow molding is carried out under the viscous flow state. Therefore, in order to reduce the vertical extension of the blank and optimize the wall thickness distribution, the larger molecular weight plastic is usually used.

B. injection blow molding

Injection molding blow molding is carried out under high elastic state. In order to reduce energy consumption of injection molding, some easily flowing plastics (smaller molecular weight plastic) are used.

C. injection stretching blow molding

Non crystalline plastics are generally used because the intermolecular entanglement force of amorphous plastics is smaller and easier to stretch. Although PET is also crystallized, it is still the main stretch blown material, and its crystallization rate is rather slow. In conclusion, most of blow molding plastics have medium to high molecular weight distribution.

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