合肥工业大学学报（自然科学版）
閤肥工業大學學報（自然科學版）
합비공업대학학보（자연과학판）
JOURNAL OF HEFEI UNIVERSITY OF TECHNOLOGY(NATURAL SCIENCE)
2014年
6期
725-729
,共5页
末端双键水性聚氨酯%乳液稳定性%热性能%力学性能
末耑雙鍵水性聚氨酯%乳液穩定性%熱性能%力學性能
말단쌍건수성취안지%유액은정성%열성능%역학성능
vinyl-terminated waterborne polyurethane (WPU )%emulsion stability%thermal property%mechanical property
文章以异佛尔酮二异氰酸酯和聚醚为主要原料、甲基丙烯酸羟丙酯为封端剂合成具有末端双键水性聚氨酯，与甲基丙烯酸甲酯、丙烯酸丁酯进行乳液共聚，制备核壳型聚氨酯-丙烯酸酯共聚物乳液。对乳液和乳胶膜进行结构和性能测试，结果表明：随着交联剂三羟甲基丙烷质量分数的增加，乳液粒径增大，稳定性变差；乳胶膜的力学性能增强，热稳定性提高。当交联剂质量为聚氨酯预聚体的1.6％时，乳液的稳定性良好、胶膜的综合性能良好。
文章以異彿爾酮二異氰痠酯和聚醚為主要原料、甲基丙烯痠羥丙酯為封耑劑閤成具有末耑雙鍵水性聚氨酯，與甲基丙烯痠甲酯、丙烯痠丁酯進行乳液共聚，製備覈殼型聚氨酯-丙烯痠酯共聚物乳液。對乳液和乳膠膜進行結構和性能測試，結果錶明：隨著交聯劑三羥甲基丙烷質量分數的增加，乳液粒徑增大，穩定性變差；乳膠膜的力學性能增彊，熱穩定性提高。噹交聯劑質量為聚氨酯預聚體的1.6％時，乳液的穩定性良好、膠膜的綜閤性能良好。
문장이이불이동이이청산지화취미위주요원료、갑기병희산간병지위봉단제합성구유말단쌍건수성취안지，여갑기병희산갑지、병희산정지진행유액공취，제비핵각형취안지-병희산지공취물유액。대유액화유효막진행결구화성능측시，결과표명：수착교련제삼간갑기병완질량분수적증가，유액립경증대，은정성변차；유효막적역학성능증강，열은정성제고。당교련제질량위취안지예취체적1.6％시，유액적은정성량호、효막적종합성능량호。
The vinyl-terminated waterborne polyurethane(WPU) was synthesized by taking isophorone diisocyanate(IPDI) and polyether as the main raw materials and hydroxypropyl methacrylate (HPMA) as end-capping agent . The acrylic/polyurethane (PUA ) hybrid emulsions with core-shell structure were prepared by waterborne polyurethane with methyl methacrylate (MMA) and butyl acrylate(BA) . The emulsion morphology and the properties of the film were characterized .The results show that the diameters of PUA latex particles increased with the increase of the crosslinker content ,while the me-chanical property and thermal stability of the film were improved .When the crosslinker mass content was 1.6% for the PU prepolymer ,stable emulsion and film with good comprehensive properties were obtained .
