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Plastic tray plastic heating identification

by:Qusheng     2020-11-12
Plastic tray plastic heating identify
& emsp;   The above three kinds of heating characteristics of the plastic is also each are not identical, can be identified by the method of heating. Thermoplastics are heated bate, easy to melt, and melt to become more transparent, often can lift from the melt, usually easy to heat sealing. Thermosetting plastic heated to materials chemistry decomposition before, keep its original not soften hardness, size, the more stable to decomposition temperature carbonization. When heated, elastomer until the chemical decomposition temperature, the flow does not occur, and decomposition temperature decomposition carbonized materials.


common thermoplastics soften or melt temperature range shown in table
& emsp;   Plastic varieties soften or melt range / ° c plastic varieties soften or melt/oc


& emsp;   Poly (vinyl acetate 35 ~ 85 poly methylene oxide 165 ~ 185


& emsp;   Polystyrene 70 ~ 115 pp 160-170


& emsp;   Polyvinyl chloride (PVC) 75 ~ 90 nylon 12 170 ~ 180


& emsp;   Polyethylene


& emsp;   Density of 0. 92 / cm3 110 nylon 11 180 ~ 190


& emsp;   Density of 0. 94 / cm3 120 polytrifluorochloroethylene 200 ~ 220


& emsp;   Density of 0. About 130 nylon 96 / cm3 610 210-220


& emsp;   Poly - 1 - Butene nylon 6 125 ~ 135, 215 ~ 225


& emsp;   Polyvinylidene chloride (115 ~ 140 Softening) Polycarbonate 220 ~ 230


& emsp;   Organic glass poly - 126 ~ 160 4 - Methylpentene - 1 240


    Cellulose acetate 125 ~ 175, nylon 66, 250-260


& emsp;   Polyacrylonitrile (130 ~ 150 Softening) Polyethylene terephthalate. 250 ~ 260
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