Polyvinyl chloride (PVC) related knowledge and common film types

 

For everyone's knowledge of polyvinyl chloride (PVC), what is polyvinyl chloride (PVC)? What is the performance of polyvinyl chloride (PVC)? How to apply it to injection molding?

 

     What is polyvinyl chloride (PVC)?

 

 Polyvinyl chloride, abbreviated as PVC, is a thermoplastic resin obtained by polymerizing vinyl chloride under the action of an initiator. Common thermoplastic materials, pcv is not flammable, and the shrinkage rate is relatively low. It is often used as a rental material for stabilizers, lubricants, auxiliary processing agents and colorants.

 

Products: Polyvinyl chloride (PVC) common film types

 

A. Ordinary PVC shed film: The film-making process does not add anti-aging batch auxiliaries. The use period is 4-6 months, which can produce one season crop, which is gradually being eliminated.

 

B. PVC anti-aging film: The anti-aging additive is added into the raw material to form a film by calendering. The effective use period is 8-10 months, and it has good light transmittance, heat preservation and weather resistance.

 

C, PVC non-drip anti-aging film: at the same time has anti-aging and dripping characteristics, light transmission and heat preservation, no dripping can be maintained for 4-6 months, safe service life of 12-18 months, widely used It is currently the most energy-efficient solar greenhouse to cover materials first.

 

D, PVC weather-resistant and drip-free dust-proof membrane: In addition to the characteristics of weather-resistant dripping, the surface of the film is treated, the amount of plasticizer is less, the dust is less, and the light transmittance is improved, which is more favorable for winter and spring cultivation in the solar greenhouse. .

 

E, PVC tree can also be used as a mulch film, adding a certain amount of color masterbatch can produce a variety of different color film.

 

Application: Polyvinyl chloride (PVC) plastic gusset

 

 Installation: First, the elevation line should be popped on the wall, the pressure line should be fixed at both ends of the wall, and the cement nail and the wall surface should be fixed firmly. The board is cut according to the actual size of the ceiling, and the board is inserted into the second board... The last board should be cut according to the actual size. When cutting, use a sharp cutting knife, use a steel ruler to press the elastic line to cut, and do a little while loading. Bending can be inserted into the top plate of the upper plate, and the bead seals on both sides after the installation.

 

If you are a practitioner in the plastics and related industries (materials, equipment, molds, products, automobiles, toys, home appliances), if you want to know about injection molding, extrusion, blow molding, calendering, rogue technology, etc., please click Zhenye Injection Molding; ID :zy-plas is off.

 

Maintenance: PVC ceiling type has strong water and scrub resistance. After daily use, it can be scrubbed with a cleaning agent and clean water.

 

Cleaning; the gap between the plates is easily contaminated by oil stains. After cleaning, brush with a cleaning agent and brush with clean water; pay attention to the lighting circuit.

 

Quality appraisal: When purchasing PVC ceiling profiles, you must ask the dealer for quality inspection report and product inspection certificate. Visual inspection of the quality of the board surface should be smooth and smooth, no cracks, no bumps, can be assembled and disassembled freely, the surface is shiny, no scratches; the surface of the board is smooth by hand. In the inspection test report, the product performance indicators should meet: heat shrinkage rate less than 0.3%, oxygen index greater than 35%, softening temperature above 80 degrees Celsius, ignition point above 300 degrees Celsius, water absorption rate less than 15%, moisture absorption rate less than 4%.