Curing Kinetics of Polyurethane Elastomers Depending on the Amount of Curing Agent and Temperatures by Real Time FTIR Spectroscopy

固化(化学) 预聚物 聚氨酯 傅里叶变换红外光谱 弹性体 甲苯二异氰酸酯 材料科学 化学计量学 高分子化学 乙醚 复合材料 化学工程 化学 有机化学 工程类
作者
Se Mi Kim,Seon Hong Kim,Eun Ju Lee,Hee Jung Park,Kee Yoon Lee
出处
期刊:Polymer-korea [The Polymer Society of Korea]
卷期号:41 (4): 610-618 被引量:4
标识
DOI:10.7317/pk.2017.41.4.610
摘要

본 연구에서는 경화제의 함량과 경화 온도가 폴리우레탄 탄성체의 경화반응속도에 끼치는 영향에 대해 연구하였다. 톨루엔 디이소시아네이트와 폴리테트라메틸렌 에테르 글리콜을 질소 분위기 하에 80℃에서 한 시간 동안 반응시켜 폴리우레탄 프리폴리머를 합성하였으며 폴리우레탄 탄성체를 만들기 위해 4,4"-메틸렌 비스(2-클로로아닐린)을 경화제로 적용하였다. 아민-이소시아네이트 비율은 0.85에서 1.05까지, 경화온도는 각각 80℃에서 120℃까지 진행하여 폴리우레탄 탄성체의 경화반응성은 실시간 FTIR을 통해 확인하였다. 아민-이소시아네이트 비율과 경화온도를 높일수록 전환율과 반응속도가 증가함을 알 수 있었으며 수치 해석을 위해 Kamal 식을 적용하였다. The effects of stoichiometric ratios of curing agent to prepolymer and temperature on the curing reaction rates of polyurethane elastomer were investigated. The prepolymers were made from toluene diisocyanate (TDI) and polytetramethylene ether glycol (PTMEG) at 80℃ in nitrogen atmosphere for an hour. Then the prepolymers were mixed with the curing agent, 4,4"-methylene bis(2-chloroaniline) (MOCA) to produce polyurethane elastomer. The curing reactivities of polyurethane prepolymer with curing agent were measured by real time FTIR spectroscopy. The stoichiometric ratios were controlled from 0.85 to 1.05 at fixed curing temperatures from 80 to 120℃. Conversions and reaction rates were increased, as the stoichiometric ratios increased. And they were increased, as the reaction temperatures increased. Kamal’s equation was adopted for simulation as a kinetic model.
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
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
专注水壶发布了新的文献求助10
刚刚
zzy完成签到,获得积分10
刚刚
1秒前
harden9159完成签到,获得积分0
1秒前
Jun发布了新的文献求助10
1秒前
Cheferr发布了新的文献求助10
2秒前
2秒前
2秒前
香菜大姐发布了新的文献求助10
2秒前
3秒前
Lucas应助何kunpeng采纳,获得10
4秒前
田様应助张涵秋采纳,获得10
5秒前
5秒前
h777发布了新的文献求助10
5秒前
嘉言发布了新的文献求助10
6秒前
曦熙完成签到,获得积分10
7秒前
兔仔仔儿发布了新的文献求助10
7秒前
8秒前
8秒前
爱科研的小多肉完成签到,获得积分10
8秒前
8秒前
8秒前
jochimchan发布了新的文献求助10
8秒前
专注水壶完成签到,获得积分10
11秒前
kk发布了新的文献求助10
11秒前
13秒前
13秒前
Tttt关注了科研通微信公众号
13秒前
13秒前
13秒前
所所应助yyy采纳,获得10
14秒前
月月发布了新的文献求助10
14秒前
ding应助勤劳笑槐采纳,获得10
14秒前
晚风发布了新的文献求助10
15秒前
喻白玉发布了新的文献求助10
15秒前
Jasper应助迷人葶采纳,获得10
16秒前
章锦镒完成签到 ,获得积分10
16秒前
爱撒娇的从丹完成签到,获得积分10
17秒前
大模型应助yyy2025采纳,获得50
17秒前
思源应助lacia采纳,获得10
17秒前
高分求助中
(应助此贴封号)【重要!!请各用户(尤其是新用户)详细阅读】【科研通的精品贴汇总】 10000
The Multiple Self-States Drawing Technique 600
Organizational Behavior 510
Management and the Arts 510
Matrix Methods in Data Mining and Pattern Recognition Second Edition 510
Rosenblum, Global Change Biology 500
CLSI VET01S-2024 Performance Standards for Antimicrobial Disk and Dilution Susceptibility Tests for Bacteria Isolated From Animals (7th Ed) 500
热门求助领域 (近24小时)
化学 材料科学 医学 生物 纳米技术 计算机科学 化学工程 工程类 有机化学 物理 复合材料 生物化学 内科学 细胞生物学 基因 遗传学 免疫学 冶金 光电子学 癌症研究
热门帖子
关注 科研通微信公众号,转发送积分 7770193
求助须知:如何正确求助?哪些是违规求助? 9313065
关于积分的说明 20332009
捐赠科研通 7355404
什么是DOI,文献DOI怎么找? 3316178
关于科研通互助平台的介绍 2465033
邀请新用户注册赠送积分活动 2331024