聚丙烯酸丁酯-丙烯酸/苯乙烯辐射接枝共聚物粘接性能的研究

采用过氧化预辐射法将生产高分子特效膜残留下的废苯乙烯（Ｓｔ）与聚丙烯酸丁酯－丙烯酸（ＰＢＡ－ＡＡ）接枝，制得ＰＢＡ－ＡＡ／Ｓｔ接枝共聚物。比较了辐射法和化学法所制接枝共聚物的粘接性能，考察了Ｓｔ含量、丙烯酸丁酯（ＢＡ）／ＡＡ共聚物特性粘度、ＡＡ用量、ＢＡ和Ｓｔ预辐射剂量对接枝共聚物粘接性能的影响。结果表明，采用辐射法所制接枝共聚物的粘接性能优于化学法所制接枝共聚物的粘接性能；废Ｓｔ比纯Ｓｔ效果好；当Ｓｔ含量为３３％、ＢＡ／ＡＡ共聚物特性粘度适中、ＡＡ用量为５．５份（ＢＡ用量固定为１００份）、ＢＡ预辐射剂量为１６．０ｋＧｙ、Ｓｔ预辐射剂量为３２．０ｋＧｙ时，制得的接枝共聚物的粘接性能最为理想

Study on Bonding Properties of PBA-AA/St Radiation Grafting Copolymer

A PBA AA/St grafting copolymer was made by grafting the waste styrene (St) from the production of functionalized polymeric membrane to poly butyl acrylate (BA) acrylic acid (AA)]through peroxidation preirradiation.The bonding property of the radiation grafting copolymer was compared to that of the chemically grafting copolymer.The influence of St level,characteristic viscosity of BA AA copolymer,AA level,preirradiation dose on the bonding property of the graft copolymer was investigated.The results showed that the radiation grafting copolymer was better than the chemically grafting copolymer in terms of the bonding property;the waste St was better than the raw St;the optimum bonding property of the graft copolymer was obtained when 33 wt% of St,BA AA copolymer with appropriate characteristic viscosity,5 5 parts of AA (based on 100 parts of BA),16 0kGy of preirradiation dose to BA,32.0kGy of preirradiation dose to St were used.