化工进展
化工進展
화공진전
CHEMICAL INDUSTRY AND ENGINEERING PROGRESS
2010年
2期
285-288
,共4页
蒋洪权%宋湛谦%商士斌%尹延柏
蔣洪權%宋湛謙%商士斌%尹延柏
장홍권%송담겸%상사빈%윤연백
蓖麻油%水性聚氨酯%交联改性
蓖痳油%水性聚氨酯%交聯改性
비마유%수성취안지%교련개성
castor oil%waterborne polyurethane%modified crosslinking
以聚醚、甲苯二异氰酸酯(TDI)、一缩二乙二醇、蓖麻油为主要原料,二羟甲基丙酸(DMPA)为亲水扩链剂,三乙胺为中和剂制备了稳定的阴离子水性聚氨酯乳液(WPU),研究了NCO/OH摩尔比、DMPA及蓖麻油的加入量对WPU的耐水性、稳定性和力学性能的影响,结果表明:改性后的乳液具有较好的稳定性,适量的蓖麻油可提高胶膜的拉伸强度及耐水性.当聚醚与蓖麻油质量比为7:3、DMPA为5%、NCO与OH摩尔比为1.3时,WPU综合性能最好.
以聚醚、甲苯二異氰痠酯(TDI)、一縮二乙二醇、蓖痳油為主要原料,二羥甲基丙痠(DMPA)為親水擴鏈劑,三乙胺為中和劑製備瞭穩定的陰離子水性聚氨酯乳液(WPU),研究瞭NCO/OH摩爾比、DMPA及蓖痳油的加入量對WPU的耐水性、穩定性和力學性能的影響,結果錶明:改性後的乳液具有較好的穩定性,適量的蓖痳油可提高膠膜的拉伸彊度及耐水性.噹聚醚與蓖痳油質量比為7:3、DMPA為5%、NCO與OH摩爾比為1.3時,WPU綜閤性能最好.
이취미、갑분이이청산지(TDI)、일축이을이순、비마유위주요원료,이간갑기병산(DMPA)위친수확련제,삼을알위중화제제비료은정적음리자수성취안지유액(WPU),연구료NCO/OH마이비、DMPA급비마유적가입량대WPU적내수성、은정성화역학성능적영향,결과표명:개성후적유액구유교호적은정성,괄량적비마유가제고효막적랍신강도급내수성.당취미여비마유질량비위7:3、DMPA위5%、NCO여OH마이비위1.3시,WPU종합성능최호.
Stable waterborne polyurethane (WPU) was synthesized from toluene diisocyanate (TDI),a polyether polyol and dihydroxymethylpropionic acid (DMPA) using castor oil as the crosslinking agent.Effects of NCO/OH,DMPA and castor oil on the water-resistance,stability and mechanical properties were investigated.Results showed that the castor oil modified WPU has better stability,and suitable amount of castor oil can improve the tensile strength and water-resistant properties of the film from WPU.The obtained WPU has excellent balanced properties when prepared with 7:3 mass ratio of polyether to castor oil,5% mass percent of DMPA,and 1.3 molar ratio of NCO to OH.
