羟基硅油共聚改性水性聚氨酯的制备_表征与性能_宋海香

第57卷 第10期 化 工 学 报

V o l 157 N o 110

2006年10月

Jou rnal of Chem ical Industry and Eng ineer i ng (Ch i na) O ctober 2006

研究简报

羟基硅油共聚改性水性聚氨酯的

制备、表征与性能

宋海香1,3

,罗运军1

,罗巨涛2

,林洪升2,瞿少敏

2

(1北京理工大学材料科学与工程学院,北京100081;

2

浙江传化股份有限公司,浙江杭州311215;

3

河南安阳工学院化学工程系,河南安阳455000)

关键词:水性聚氨酯;皮革涂饰剂;羟基硅油;流平性

中图分类号:TQ 32318;TQ 26411+7 文献标识码:A

文章编号:0438-1157(2006)10-2486-05

Preparati on ,characteri zati on and properties of waterborne po l yuret hane mod ifi ed

t hrough copo l y m erizati on by hydroxy -ter m i nated silicon o il

SONG H aix iang 1,3,L UO Yun j u n 1,LUO Jutao 2,LI N H ongsheng 2,QU Shao m i n

2

(1Schoo l of M aterials Science and Eng i neering ,B eijing Ins titute of T ec hnology ,B eij i ng 100081;2

Zhejiang T ransfarche m C o 1,L t d ,H angzhou 311215,Zhej i ang ,China ;

3

D epart m ent of

Che m ical Eng i neering ,A nyang Instit ute of T echnology ,Any ang 455000,H enan ,Ch i na )

Abstrac:t A series of w aterbo r ne polyurethane e m u lsions m odified by copo l y m er izati o n w ith WACKER I M 22、RHODORSI L O I L 1647V60、KF-6001and traditi o na l hydroxy -ter m i n ated silicon o il respecti v ely for leather fi n ish i n g w ere synthesized ,and character ized w ith GPC ,DSC ,TE M and TGA and the ir fi n ish i n g properties on leathers w ere m easured 1The resu lts show ed tha,t the nu m ber average re lative m o lecular w eight decreased,wh ile the

t h er m a l deco mposab ility w as si m ilar to the un m odified w ater bo r ne po l y urethane .The co m pati b ility o f soft and har d seg m en ts o fw aterborne polyure t h ane m odified by WACKER I M 22w as good.The freezing resistance and leveling effectw ere good when t h e m ass ratio of theWACKER I M 22to po lypropy lene glyco lw as 20%.The b i n d i n g po w er w as good when t h e leathers w ere finished by w aterborne polyuret h ane modified by hydr oxyl based silicon o i.l The hand fee li n g of said leat h er sty le w as n ice and soft and the w ater resistance property w as increased.K ey w ords :w aterborne po l y urethane ;leather fi n ish i n g ;hydroxy -ter m i n ated silicon o i;l leve li n g effect

2006-05-11收到初稿,2006-07-24收到修改稿.

联系人:罗运军.第一作者:宋海香(1966)),女,博士,副教授.

引 言

水性聚氨酯是一类重要的皮革涂饰剂,它耐磨、柔韧性好,可增加皮革的美观和耐用性.水性聚氨酯链上含有亲水基团,因此形成的涂膜耐水性差,常需要改性.目前改性方法有交联、共混、共

聚、纳米技术等,而采用有机硅改性聚氨酯是当前的研究热点之一

[1-3]

.传统的端羟基聚二甲基硅氧

烷的)OH 与)NC O 反应形成极易水解的Si )O )C

键,而有机硅低聚物二元醇(siloxane oligo m er d-i o ls ,SOD)中)OH 基团通过烷基或醚键与硅原子 Recei ved d ate :2006-05-11.

Correspond i ng author :P ro.f L UO Yun j un .

E -m ai:l

yjl uo@

b it 1edu 1cn

相连,与)NC O 反应后无S i )O )C 键形成,因此稳