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China Plastics ›› 2022, Vol. 36 ›› Issue (9): 74-84.DOI: 10.19491/j.issn.1001-9278.2022.09.012
• Processing and Application • Previous Articles Next Articles
MA Chao1, MA Lanrong2, WEI Liao2, YIN Huibo2, LIN Xiang1()
Received:
2022-05-27
Online:
2022-09-26
Published:
2022-09-26
CLC Number:
MA Chao, MA Lanrong, WEI Liao, YIN Huibo, LIN Xiang. A review of modification processing and water⁃soluble degradation ability of polyglycolic acid material[J]. China Plastics, 2022, 36(9): 74-84.
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URL: https://www.plaschina.com.cn/EN/10.19491/j.issn.1001-9278.2022.09.012
材料名称 | Tg/℃ | Tm/℃ | 拉伸强度/MPa | 弹性模量/GPa | 断裂伸长率/% | 弯曲强度/MPa | 弯曲模量/GPa |
---|---|---|---|---|---|---|---|
PGA[ | 35~40 | 220~230 | 115 | 7 | 16.4 | 222 | 7.8 |
PLA[ | 57~58 | 140~152 | 53 | 2.4 | 5 | 92 | 3.4 |
PHA[ | 2~5 | 170 | 50~25 | 1~2 | 4~7 | 33~40 | 1.3~2.0 |
PBAT[ | -30 | 110~120 | 20 | 0.08 | >900 | 3.1 | 0.08 |
PCL[ | -60 | 60 | 14.6 | 0.4 | 600~900 | 23.4 | 0.6 |
PBS[ | -32 | 90~120 | 30 | 17.69 | 600 | 25 | 400 |
PVA[ | 75~85 | 220~240 | — | — | 15~30 | — | — |
PHB[ | -1 | 160~170 | 40 | 1.7~3.5 | 3~6 | — | — |
材料名称 | Tg/℃ | Tm/℃ | 拉伸强度/MPa | 弹性模量/GPa | 断裂伸长率/% | 弯曲强度/MPa | 弯曲模量/GPa |
---|---|---|---|---|---|---|---|
PGA[ | 35~40 | 220~230 | 115 | 7 | 16.4 | 222 | 7.8 |
PLA[ | 57~58 | 140~152 | 53 | 2.4 | 5 | 92 | 3.4 |
PHA[ | 2~5 | 170 | 50~25 | 1~2 | 4~7 | 33~40 | 1.3~2.0 |
PBAT[ | -30 | 110~120 | 20 | 0.08 | >900 | 3.1 | 0.08 |
PCL[ | -60 | 60 | 14.6 | 0.4 | 600~900 | 23.4 | 0.6 |
PBS[ | -32 | 90~120 | 30 | 17.69 | 600 | 25 | 400 |
PVA[ | 75~85 | 220~240 | — | — | 15~30 | — | — |
PHB[ | -1 | 160~170 | 40 | 1.7~3.5 | 3~6 | — | — |
改性方法 | 优点 | 效果 | 缺点 |
---|---|---|---|
增韧 | 同为共混改性,操作方法简单方便,适用于工业化生产 | 加入弹性体增加韧性改善脆性 | 对材料性能改善单一化,只能通过加入改性料来调控材料性能 |
增容 | 增加共混物的相容性,强化界面效应,减少相分离 | ||
增强 | 加入高强度改性料,提高强度 | ||
增塑 | 增加热稳定性,扩大加工窗口 | 可选择性少,多为有毒、污染物,使用限制多 | |
溶液改性 | 属于共聚改性,通过调节材料分子结构来达到所需要的性能 | 订制调节材料的降解性能等多种性能 | 过程复杂,成本高,不适于量产 |
改性方法 | 优点 | 效果 | 缺点 |
---|---|---|---|
增韧 | 同为共混改性,操作方法简单方便,适用于工业化生产 | 加入弹性体增加韧性改善脆性 | 对材料性能改善单一化,只能通过加入改性料来调控材料性能 |
增容 | 增加共混物的相容性,强化界面效应,减少相分离 | ||
增强 | 加入高强度改性料,提高强度 | ||
增塑 | 增加热稳定性,扩大加工窗口 | 可选择性少,多为有毒、污染物,使用限制多 | |
溶液改性 | 属于共聚改性,通过调节材料分子结构来达到所需要的性能 | 订制调节材料的降解性能等多种性能 | 过程复杂,成本高,不适于量产 |
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