甲基丙烯酸丁酯-丙烯酸丁酯共聚物/碳酸钙复合功能树脂的制备和性能

n active tertiary hydrogen atom containing poly (butyl methacrylate- co- butyl acrylate) was firstly synthesized via suspension polymerization, and then a novel functional resin containing rigid calcium carbonate was prepared by reactive extrusion while poly (butyl methacrylate-co-butyl acrylate), nano-calcium carbonate, hydroxyethyl methacrylate and benzoyl peroxide were used as matrix polymer, filler, reactive monomer and initiator, respectively. The corresponding structure and properties of the prepared resin were characterized by using thermogravimetric analyzer, field emission scanning electron microscope and X-ray diffractometer. The oil absorption of the resin before and after acid treatment and the capability of the resin before and after alkali treatment to absorb cationic blue dye were investigated in detail. The results show that acid treatment can not affect the oil absorption of the resin, and the resin can completely remove oil from water through absorption when circulating absorption time reached 50-60 min; additionally, the composite after alkali treatment for 30 min has good capacity to absorb cationic blue dye in comparison with the untreated ones.