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In the production process of plastic profile, how to ensure the quality and technology of profile?
Author: plastic profiles   Source: Original   Release time: 20:05:44, April 8, 2018   read: one hundred and eighty-five second

Plastic profiles are listed as one of the most important building materials in China because of its excellent heat insulation performance. In the production process of plastic profile, what problems need to be paid attention to in order to ensure the quality and technology of profile. Let's understand what plastic profile additives have?

Plastic profile additive 1: impact modifier

If the impact modifier is not added in the production of plastic profile, the plastic profile will be very brittle and hard, and easily broken with a little impact. There are three kinds of modifiers commonly used in the production of plastic profiles: chlorinated polyethylene, polyacrylate and ethylene vinyl acetate copolymer.

Plastic profile additive 2: heat stabilizer

Plastic profiles are heat sensitive plastics, so heat stabilizers are essential in the production and processing of plastic profiles. The metal salt in heat stabilizer can absorb HCl decomposed from PVC, so it can delay the decomposition speed and prolong the decomposition time of plastics. Compound lead salts are most commonly used in the production of plastic profiles, with high thermal stability efficiency and low price.

Plastic profile additive 3: lubricant

The main function of lubricant is to reduce the friction between polymer and processing equipment and between polymer internal molecules, prevent resin degradation caused by excessive friction heat, and improve the efficiency of heat stabilizer.

Plastic profile additives 4: processing aids

Processing aids are mainly used to improve the processing properties of plastics. The processing temperature of plastic profile is close to that of decomposition temperature, and the fluidity is poor, and it is easy to stick on the equipment for coking. Therefore, it is necessary to add a certain amount of processing aids in the production of plastic profiles to overcome the defects of plastic profiles.

Plastic profile additive 5: light stabilizer

Light stabilizers can inhibit the photodegradation reaction of polymers by shielding and absorbing ultraviolet rays, quenching excitation energy and capturing free radicals, so as to give the products good light stabilization effect and prolong their service life.

Plastic profile additives 6: Fillers

Filler is a kind of solid additive different from plastics in composition and structure, also known as filler. It has obvious effect and economic value to improve some physical and mechanical properties of plastics and reduce the cost of plastics. Adding fillers into the formula of plastic profiles can reduce the size change rate, improve the impact strength and rigidity, and reduce the production cost.

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