Dynamic crystallization kinetics and morphology of carbonaceous nanofillers-reinforced poly (lactic acid) foams

结晶 材料科学 化学工程 乳酸 活化能 动力学 复合材料 化学 遗传学 量子力学 生物 物理 工程类 有机化学 细菌
作者
Amirali Soleimanpour,Hanieh Khonakdar,Seyed Rasoul Mousavi,Farkhondeh Hemmati,Mohammad Arjmand,Kerstin Arnhold,Uta Reuter,Hossein Ali Khonakdar
出处
期刊:Thermochimica Acta [Elsevier BV]
卷期号:716: 179308-179308 被引量:18
标识
DOI:10.1016/j.tca.2022.179308
摘要

Carbon black (CB), multi-walled carbon nanotubes (CNT), and graphene oxide (GO)-reinforced poly (lactic acid) (PLA) foams were prepared. Morphological studies indicated that incorporating nanoparticles into foamed PLA (F-PLA) changed the sphericity degree, diameter, and homogeneity of cells. Among all samples, foamed PLA containing 0.25 phr GO exhibited the highest void content (+46%) compared to foamed neat PLA, while its cell density diminished by 21%. In contrast, despite a lower improvement in void content (+18%), foamed PLA containing 0.25 phr CNT experienced a +3% enhancement in cell density compared to foamed neat PLA. Also, the nanoparticles were well dispersed in un-foamed PLA without any obvious aggregation. The crystallization kinetics of foams were studied using DSC. The results revealed that PLA foams reinforced with 0.25 phr CNT and GO had a significant effect on crystallization promotion. The crystallization kinetics of foamed samples were studied using different models such as Jeziorny, Avrami, Ozawa, Kissinger, and Doyle-Ozawa. The results demonstrated that adding nanofillers did not affect the crystallization mechanism of foamed PLA. Also, incorporating up to 0.5 phr CNT and GO decreased the apparent crystallization activation energy compared to neat F-PLA. An almost similar trend was observed for the local crystallization activation energy.
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
刚刚
Rondab应助Luos采纳,获得10
2秒前
yx_cheng应助lilila666采纳,获得30
5秒前
7秒前
7秒前
8秒前
10秒前
Xiaoyang完成签到,获得积分10
10秒前
loski发布了新的文献求助10
10秒前
11秒前
虚心月饼发布了新的文献求助10
12秒前
13秒前
Lucas应助123采纳,获得10
15秒前
香蕉觅云应助KIORking采纳,获得10
16秒前
16秒前
Liufgui应助执着又蓝采纳,获得20
17秒前
17秒前
正直水池完成签到 ,获得积分10
17秒前
17秒前
阿克完成签到,获得积分10
17秒前
一方通行发布了新的文献求助10
18秒前
perovskite完成签到,获得积分10
18秒前
如梦如幻91完成签到,获得积分10
18秒前
18秒前
18秒前
妮露的修狗完成签到,获得积分10
19秒前
20秒前
21秒前
文献发布了新的文献求助30
23秒前
无花果应助我不吃胡萝卜采纳,获得10
24秒前
24秒前
25秒前
自信的电灯胆完成签到,获得积分20
25秒前
量子星尘发布了新的文献求助10
26秒前
27秒前
28秒前
清辉夜凝发布了新的文献求助10
28秒前
30秒前
少敏敏发布了新的文献求助10
31秒前
32秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
‘Unruly’ Children: Historical Fieldnotes and Learning Morality in a Taiwan Village (New Departures in Anthropology) 400
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
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 3989378
求助须知:如何正确求助?哪些是违规求助? 3531442
关于积分的说明 11254002
捐赠科研通 3270126
什么是DOI,文献DOI怎么找? 1804887
邀请新用户注册赠送积分活动 882087
科研通“疑难数据库(出版商)”最低求助积分说明 809173