Sunny Raj@

 Gravity Of Polymers By :- Sunny Raj 1. Polyolefins Polymer Abbreviation Specific Gravity Low density polyethylene LDPE 0.91 – 0.92 High density polyethylene HDPE 0.94 – 0.96 Linear low density polyethylene LLDPE 0.91 – 0.93 High molecular high density polyethylene HMHDPE 0.94 – 0.97 Ultra high molecular HDPE UHMHDPE 0.97 Polypropylene PP 0.89 – 0.91 2. Chlorinated Polymers Polymer Abbreviation Specific Gravity Poly vinyl chloride PVC 1.38 – 1.41 Poly vinyledene chloride PVDC 1.65 – 1.75 Chlorinated PVC PVCC 1.44 – 1.47 Co-polymer of vinyl chloride & vinyl acetate PVC-co-VA 1.16 – 1.36 Poly vinyl alcohol PVA 1.21 – 1.32 Poly vinyl acetate PVAc 1.17 – 1.26  3. Fluoro Polymer Polymer Abbreviation Specific Gravity Polyvinyl fluoride PVF 1.44 Poly vinyledene fluoride PVDF 1.76 – 1.771 Ploy chloro tri fluoro ethylene PCTFE 2.10 – 2.20 Poly tetra fluoro ethylene PTFE 2.10 – 2.30  4. Polystyrene & co-polymer Polymer Abbreviation Specific Gravity Acrylonitrile butadiene styrene ABS 1.0

Melting Points Of Plastics By:- Sunny Raj 1. Polyolefins Polymer Abbreviation Melting Points ( ° C)     Low density polyethylene LDPE 110 High density polyethylene HDPE 130 Linear low density polyethylene LLDPE 125 High molecular high density polyethylene HMHDPE 135 Ultra high molecular HDPE UHMHDPE 130 Polypropylene PP 160 2. Chlorinated Polymers Polymer Abbreviation Melting Points  ( ° C) Poly vinyl chloride PVC  160-220 Poly vinyledene chloride PVDC 190-200 Chlorinated PVC PVCC 200-210 Co-polymer of vinyl chloride & vinyl acetate PVC-co-VA 130 Poly vinyl alcohol PVA 218 Poly vinyl acetate PVAc 175  3. Fluoro Polymer Polymer Abbreviation Melting Points  ( ° C) Polyvinyl fluoride PVF 200 Poly vinyledene fluoride PVDF 172 Ploy chloro tri fluoro ethylene PCTFE 210 Poly tetra fluoro ethylene PTFE 320  4. Polystyrene & co-polymer Polymer Abbreviation Melting Points  ( ° C) Acrylonitrile butadiene styrene ABS 200-210 Styrene acrylo nitrile SAN 200 Polystyrene PS 190  5. Polyamides