2014年3月2日星期日

PVC processing aid and the use of its characteristics

ACR acrylic esters (Acrylics) Abbreviation is generic acrylic ester series modifier , based acrylic ester polymer of copolymer . ACR is a copolymer of methyl methacrylate and acrylic acid ester as  WSD Calcium stearate a white flowable powder. Depending on acrylic esters , ACR different properties and uses the proceeds of its wide range of applications. ACR as processing aids , plasticizers can significantly shorten the time to accelerate melting and promote plasticized , extruded products can make to improve the balance of torque , making it even plastics ; pair of rolled products , adding ACR to overcome the surface wrinkles , help roll  WSD Plastic impact modifier package of materials , reducing air bubbles ; for vacuum forming products , adding ACR to improve melt extensibility overcome melt fracture phenomenon , easily deep drawing , and make uniform product thickness . From the looks of the article , ACR can significantly improve the surface gloss of products, to make products look smooth and delicate. The processing aids wide range of applications , in addition to rigid PVC products, the semi- rigid and soft PVC products, PVC products all have the effect of improving  WSD stearic acid processing performance for applications that require good weather resistance of opaque PVC products such as pipes, construction material ( siding, doors and windows profiles, pipe fittings , blinds, rain gutters , etc. ) as well as injection molding, blow molding products.

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