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A brief introduction about grocery bags
Jul 24, 2015

Food bag is the main material for polyethylene PE, PP polypropylene food bags, food bags widely in food packaging food bags manufacturers must have QS certification.

In almost all plastics synthetic resin. Resin is the main ingredient in plastic, it plays the role of adhesive, can other components plastic cemented into a whole. While joining the various additives can alter the properties of the plastic, but the resin is to determine the fundamental factors of plastic type, performance and use.

The type of resin used in plastics decorative materials are: polyethylene (PE), polyvinyl chloride (PVC), polystyrene (PS), phenol (PF), urea-formaldehyde (UF), epoxy (EP), polyester (PR ), polyurethane (PU), poly methyl methacrylate (PUMA), silicone (SI) and the like.

According to different changes that occur when heated, the synthetic resin can be divided into two kinds of thermoplastic resins and thermosetting resins.


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