TPU of grade different shore natural colour
Offer For Sale. ABS Resins Off Grade In Black Or White Color. To know more about us visit our website www.alrazaaq.com and ask us for further details.
From Pakistan we offer PP resin off grade. Please visit our website on your response, we will be pleased to make our offers with details.
Supplier: Plastic pellet and product, ABS, HIPS, PP, LDPE, Others, Recycled & Off Grade
Buyer: ABS, HIPS, PP, LDPE, Others Scrap.
PPA pellets off grade PPA pellets off grade, producer EMS Switzerland Color: White color Packaging: In big bags Quantity: 20 mt Origin of PPA pellets off grade: Italy Loading place:Turin Italy Polyphthalamide (aka. PPA, High Performance Polyamide) is a diverse subset of thermoplastic synthetic resins in the polyamide (nylon) family defined as when 60% or more moles of the carboxylic acid portion of the repeating unit in the polymer chain is composed of a combination of terephthalic (TPA) and isophthalic (IPA) acids. Some of them have been used to replace metals in high temperature automotive applications, as the housing for high temperature electrical connectors and multiple other uses. PPAs are polyamides containing aromatic rings in the diacid part of their backbones, which gives them high mechanical strength and thermal resistance. As a member of the nylon family, it is a semi-crystalline or amorphous material composed from a diacid and a diamine which means PPA is formed by the reaction of aromatic acids with aliphatic diamines. However, the diacid portion contains at least 55% terephthalic acid (TPA) or isophthalic acid (IPA). TPA or IPA are aromatic components which serve to raise the melting point, glass transition temperature and generally improve chemical resistance vs. standard aliphatic nylon polymers and reduce water absorption. If more than 55% of the acid part of a PPA is made out of IPA, then the copolymer is amorphous.