NCC/碱木质素硬质聚氨酯泡沫的制备  

Preparation of NCC/Alkali Lignin Based Rigid Polyurethane Foam

作　　者：刘国超[1] 刘志明[1] 

机构地区：[1]东北林业大学材料科学与工程学院生物质材料科学与技术教育部重点实验室,黑龙江哈尔滨150040

出　　处：《广东化工》2013年第7期7-8,共2页Guangdong Chemical Industry

基　　金：人力资源和社会保障部留学回国人员科技活动择优资助项目(07041311401)

摘　　要：首先以多亚甲基多苯基多异氰酸酯(PAPI)为原料,水为化学发泡剂,正戊烷为物理发泡剂,二甲基硅油为泡沫稳定剂,三乙烯二胺为催化剂,PAPI与聚乙二醇(PEG)反应优化制备了硬质聚氨酯泡沫。制备优化工艺条件为异氰酸酯指数1.15,以20份(质量)PEG-400为标准,依次添加23份PAPI,0.2份二甲基硅油、0.2份水、1.5份正戊烷和0.02份三乙烯二胺;在此基础上,添加0.4%(以PEG-400计)纳米纤维素(NCC),碱木质素替代PEG-400用量10%的情况下制备了NCC/碱木质素硬质聚氨酯泡沫。Under the condition of polymethylene polyphenyl isocyanate（PAPI） as raw material,water as chemical foaming agent,n-pentane as physical blowing agent,dimethyl silicone as foam stabilizer,triethylenediamine as catalyst,the rigid polyurethane foam was prepared by PAPI reacting with polyethylene glycol（PEG）.20 parts（mass fraction） of PEG-400 as standard,optimal preparation conditions of polyurethane foam were isocyanate index 1.15,23 parts of PAPI,0.2 parts of dimethyl silicone,0.2 parts of water,1.5 parts of n-pentane,and 0.02 parts of triethylenediamine.On the basis of this condition,NCC/alkali lignin based rigid polyurethane foam was prepared with addding 0.4 % NCC（calculated as PEG-400）,adding 10 % alkali lignin in order to replace the dosage of PEG-400.

关 键 词：纳米纤维素 碱木质素 聚氨酯泡沫 

分 类 号：TQ352[化学工程]