PU/HSP复合发泡材料的制备及性能

doi:10.12066/j.issn.1007-2861.1967

上海大学学报(自然科学版) ›› 2018, Vol. 24 ›› Issue (5): 773-781.doi: 10.12066/j.issn.1007-2861.1967

PU/HSP复合发泡材料的制备及性能

刘丽¹(), 蒋龙孙¹, 郝新敏², 陈晓², 黄杰³

1. 上海大学材料科学与工程学院, 上海 200444
2. 中国人民解放军总后勤部军需研究所, 北京 100082
3. 李宁 (中国) 体育用品有限公司, 北京 101102

收稿日期:2017-08-27 出版日期:2018-10-30 发布日期:2018-10-26
通讯作者: 刘丽 E-mail:liuli@staff.shu.edu.cn
基金资助:
国家高技术研究发展计划(863计划)资助项目(2015AA033905)

Preparation and properties of PU/HSP composite foams

LIU Li¹(), JIANG Longsun¹, HAO Xinmin², CHEN Xiao², HUANG Jie³

1. School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
2. The Quartermaster Research Institute of the General Logistics Department of the PLA, Beijing 100082, China
3. Lining (China) Sports Co., Ltd., Beijing 101102, China

Received:2017-08-27 Online:2018-10-30 Published:2018-10-26
Contact: LIU Li E-mail:liuli@staff.shu.edu.cn

摘要/Abstract

摘要：

以聚醚多元醇和多苯基多亚甲基多异氰酸酯(polyaryl polymethylene isocyanate, PAPI)为原料, 汉麻秆芯粉(hemp stem powder, HSP)为改性填料, 水为发泡剂制备了聚氨酯(polyurethane, PU)/HSP复合发泡材料, 研究了HSP的添加量对其75%压缩永久变形、回弹性等力学性能以及抗菌性的影响, 并探讨了HSP对75%压缩永久变形性能的影响机理. 研究发现, 随着HSP添加量的增加, 在一定的范围内PU/HSP复合发泡材料的回弹性、拉伸强度和断裂伸长率均有一定程度的增加. 75%压缩永久变形和抗菌性都随HSP添加量的增加而增加. 当HSP的添加量为15 phr时, PU/HSP复合发泡材料的综合性能最优, 密度小于 50 kg/m³, 压陷硬度可达256.1 N, 回弹性接近50%, 75%压缩永久变形小于等于5%, 拉伸强度达到124 kPa.

关键词: 聚氨酯, 汉麻秆芯粉, 链滑移机理, 抗菌性

Abstract:

Polyurethane (PU) foam reinforced by free-rising hemp stem powder (HSP) is prepared with polyols and polyaryl polymethylene isocyanate (PAPI). Water is used as a blowing agent. Effects of the HSP on the physical properties and bacteria inhibitive rate are studied. The results shows that rebound resilience, tensile strength and elongation at break increase with the increasing HSP content within a certain range. The 75% compression set and bacteria inhibitive increase with the HSP content. The composite foams with 15 phr HSP shows the optimum overall properties with density and the 75% compression set are less than 50 kg/m³ and 5%, respectively. Hardness and tensile strength reach 256.1 N and 124 kPa, and rebound resilience around 50%.

Key words: polyurethane (PU), hemp stem powder (HSP), chain slippery effect, bacteria inhibition

中图分类号:

TQ328

刘丽, 蒋龙孙, 郝新敏, 陈晓, 黄杰. PU/HSP复合发泡材料的制备及性能[J]. 上海大学学报(自然科学版), 2018, 24(5): 773-781.

LIU Li, JIANG Longsun, HAO Xinmin, CHEN Xiao, HUANG Jie. Preparation and properties of PU/HSP composite foams[J]. Journal of Shanghai University（Natural Science Edition）, 2018, 24(5): 773-781.

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PU/HSP复合发泡材料的制备及性能

Preparation and properties of PU/HSP composite foams

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