pp/pph7060/皮帶 (參數(shù))petg kn200,、pc l-1250y,、pbt b700,、tpee 1163-201ml,、pa6 c216v35,、pp 2175,、pp r3410,、pbt wsf42,、tpe tf5wkb、
pbt kp513mt25,、tpe om 6059-9pa6 p1000p,、abs 2802tr q434、pc/abs nx10302,、pa66 rfl36s,、pa6 c246si v30、pc 7101-15,、pc gsh2030sr,、pc 8035、
pom 511ppp 7624 ,、pa66 3189hsl,、asa s210b
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
pp/pph7060/皮帶 (參數(shù))pp md000a 、pa66 a216v40,、pp 5012 ,、tpu 90ik69、pa6t rg430nk,、 pa1010 xe4116 wh,、tpv 6091-55a 、pc 241r,、pc/abs nx07354,、
pps a310mx04 、pp 3248rc pa12 l2101f,、pbt 4130-104f,、pbt s1040p、tpe tf6maa,、tpee bt-3028d,、pc gn-3730si bx310203、pbt wf-1003fruv,、pbt 8830 ,、
pc/abs c6200-whpbt 359、lcp 3481-1,、pa66 a3k
delivery grade: quality standard of linear low density polyethylene delivery for dalian mercantile exchange
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