期刊论文

中文

湖北民族大学学报(自然科学版)

2096-7594

2024

42

02

164-171

10.13501/j.cnki.42-1908/n.2024.06.003

2021CFB583:湖北省自然科学基金 B2022235:湖北省教育厅科学技术研究项目

本校为第一机构

为了探究蓖麻油基聚氨酯(castor oil-based polyurethane,CO-PU)薄膜最佳成膜条件及其综合性能,以蓖麻油(castor oil,CO)、二苯基甲烷二异氰酸酯(4,4-diphenylmethane diisocyanate,MDI)为主要反应物,以过氧化二苯甲酰(benzoyl peroxide,BPO)为自由基引发剂,二月桂酸二丁基锡(dibutyltin dilaurate,DBTDL)为催化剂,控制单一变量,采用预聚体法,制备不同R值(-NCO与-OH物质的量之比)的CO-PU薄膜.探究不同R值、DBTDL含量和成膜固化温度对CO-PU薄膜的力学性能和成膜状态的影响,从而确定CO-PU薄膜的最佳成膜条件.结果表明,当R值为2.5,DBTDL含量为 0.1‰,成膜固化温度为 80℃时,CO-PU薄膜的抗拉强度和断...

To investigate the optimal film-forming conditions and comprehensive performance of castor oil-based polyurethane(CO-PU)films,we used castor oil(CO)and 4,4-diphenylmethane diisocyanate(MDI)as the main reactants,benzoyl peroxide(BPO)as the free radical initiator,and dibutyltin dilaurate(DBTDL)as a catalyst,CO-PU films with different R-values(the ratio of the amount of-NCO to the amount of-OH)were prepared through the pre-polymerisation method while controlling a single variable.The mechanical properties and film-forming state of CO-PU films were...