Novel Reactive Polyhedral Oligomeric Silsesquioxane-Reinforced and Toughened Epoxy Resins for Advanced Composites

倍半硅氧烷 环氧树脂 复合材料 材料科学 聚合物
作者
Weibo Liu,Caiyun Wang,Feng Yu,Yongfeng Chen,Liqiang Wan,Farong Huang,Zuozhen Liu,Jianhua Qian,Weiping Liu
出处
期刊:Polymers [Multidisciplinary Digital Publishing Institute]
卷期号:16 (13): 1877-1877
标识
DOI:10.3390/polym16131877
摘要

Most toughening methods for epoxy resins are usually used at the expense of other properties. Some polyhedral oligomeric silsesquioxanes (POSSs) with both a rigid Si-O-Si structure and flexible organic chain segments could be expected to be effective toughening agents. In this study, three reactive polyhedral oligomeric silsesquioxanes with a thiol group (OMPPS), a carboxyl group (OCOPS), and an epoxy group (OGCPS) were synthesized and characterized. They were utilized as modifiers to toughen 3-(oxiran-2-ylmethoxy)-N,N-bis(oxiran-2-ylmethyl)aniline (AFG-90MH)/4,4′-methylenebis(2-ethylaniline) (MOEA) (epoxy resin) with different molar ratios to obtain hybrid resins named OMPPS-EP-i, OCOPS-EP-j, and OGCPS-EP-k. The effects of the amount of modifier added and the length of the organic chain on the cage structure on various properties of the hybrid resins were investigated. The results show that all three modifiers show good compatibility with the epoxy resin. The hybrid resins have a low viscosity at 45~85 °C and can be cured at a low temperature (110 °C). The cured hybrid resins display improved toughness. Typically, the critical stress intensity factor (KIC) and impact strength of OGCPS-EP-0.6-C are 2.54 MPa∙m−1/2 and 19.33 kJ∙m−2, respectively, which increased by 58.75% and 22.48% compared with the pristine epoxy resin, respectively. In addition, the glass transition temperature and flexural strength of the hybrid resins are basically unchanged.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
Xin完成签到,获得积分10
刚刚
Aurora.H完成签到,获得积分10
3秒前
3秒前
FashionBoy应助科研通管家采纳,获得10
4秒前
打打应助科研通管家采纳,获得10
4秒前
Jasper应助科研通管家采纳,获得10
4秒前
Ava应助科研通管家采纳,获得10
4秒前
顾矜应助科研通管家采纳,获得10
4秒前
上官若男应助科研通管家采纳,获得10
4秒前
duckspy发布了新的文献求助10
6秒前
6秒前
6秒前
xiaowan完成签到,获得积分10
7秒前
Terry完成签到,获得积分10
8秒前
张张张哈哈哈完成签到,获得积分10
8秒前
Research完成签到 ,获得积分10
8秒前
称心采枫完成签到 ,获得积分0
9秒前
9秒前
新新新新新发顶刊完成签到 ,获得积分10
10秒前
L3完成签到,获得积分10
11秒前
我是科研小能手完成签到,获得积分10
11秒前
风中的小丸子完成签到,获得积分10
12秒前
12秒前
时尚俊驰发布了新的文献求助10
13秒前
13秒前
13秒前
Grin完成签到,获得积分10
14秒前
周周完成签到,获得积分20
14秒前
15秒前
liufan完成签到 ,获得积分10
17秒前
guitarist完成签到 ,获得积分10
17秒前
饮汽水完成签到,获得积分10
17秒前
17秒前
yoyo20012623完成签到,获得积分10
18秒前
伦语发布了新的文献求助10
18秒前
韵苑完成签到,获得积分10
20秒前
烟花应助人生如梦采纳,获得10
20秒前
饮汽水发布了新的文献求助10
21秒前
先一完成签到 ,获得积分10
21秒前
22秒前
高分求助中
【提示信息,请勿应助】关于scihub 10000
Les Mantodea de Guyane: Insecta, Polyneoptera [The Mantids of French Guiana] 3000
徐淮辽南地区新元古代叠层石及生物地层 3000
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
Handbook of Industrial Diamonds.Vol2 1100
Global Eyelash Assessment scale (GEA) 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 550
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 4038201
求助须知:如何正确求助?哪些是违规求助? 3575940
关于积分的说明 11373987
捐赠科研通 3305747
什么是DOI,文献DOI怎么找? 1819274
邀请新用户注册赠送积分活动 892662
科研通“疑难数据库(出版商)”最低求助积分说明 815022