tpv丨8271-55b100丨埃克森美孚<物性表>pp k4715、tpu 58133、pa6 1013g15-1、pmma ird-30、pp bi730、pc 940a 、lcp e5002l、tpu 101lgf40nat、tpe v-978、
pc ir1900、petg jn100pa6 6mv14fr4k1681、pa66 77g33l-nc、pc glx143、pa46 ts300、pc l200kl、tpv 251-75、pa66 h2g/25-v0、pp 18751 、
pa6 dp2037/30h2.0ltpbt gp2306fc、pp 7032e3、tpe tp5ccz
electrochemical properties
tpv丨8271-55b100丨埃克森美孚<物性表>tpu e1160d50、pmma hi-835ms、ppo wcv063-111、pp j-466hp、tpee pl460-s-vo、pa6 1340gm8、pp 526k 、ppo px9406、tpe 1080n/1002、
pc/abs 2-1466、pbt 5010gn1-30asa u307、ppo gtx909、tpv 8211-65、tpu c85a55、tpu s168d、pc 8410-15、tpe g7723g、pa66 a3wg7hpr01、
abs 910-x01tpe 5502-ab、pp bp-402 、tpu 1190a
the monomer lets are dispersed in the aqueous phase suspension polymerization method, using oil soluble initiator were dissolved in monomer, polymerization reaction in the let, the polymerization heat absorbed by the water in time, in order to ensure that these lets in water were bead dispersed, need to join the suspension the stabilizer, such as gelatin&polyvinyl alcohol, methyl cellulose, hydroxyethyl cellulose, etc.. most of the initiators are organic peroxide&azo compounds, such as peroxide two, two isopropyl carbonate, peroxide two, bicarbonate, peroxide two, two ethylhexyl ester, azo two isoheptane, azo two isobutane&so on. the polymerization is carried out in a polymerizer with a agitator. after polymerization, the monomer material flows into the recovery tank/stripper recycle monomer. then into the mixing kettle, water washing then centrifuge dehydration, drying&resin finished products. the vinyl chloride monomer should be removed from the resin as much as possible. as the pvc for food packaging, the content of free monomer should be controlled below 1ppm. during polymerization, the temperature&pressure of the polymerization process must be controlled to ensure that the specified molecular weight&molecular weight distribution range are obtained&the detonation is prevented. the particle size&particle size distribution of the resin is controlled by the stirring speed&the ion&dosage of the suspension stabilizer. the quality of resin is characterized by particle size&particle size distribution, molecular weight&molecular weight distribution, apparent density, porosity, fisheye, thermostability, color, impurity content&free mobility of powder. polymerization reaction
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