生物基与生物可降解口罩过滤材料的研究进展
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孙玉发, 孙刚
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Research progress in bio-based and biodegradable facemask filter materials
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SUN Yufa, SUN Gang
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表1 不同可降解聚合物和增塑剂对PLA材料性能的影响
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Tab.1 Effects of different biodegradable polymers and plasticizers on properties of PLA materials
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| 改性剂 | 添加量/% | Tg/℃ | 结晶度/% | 拉伸强度/MPa | 断裂伸长率/% | 降解性能 | 参考文献 | | PBS | 5 | 63.2 | — | 2.28 | 30.36 | — | [37] | | PBS | 10 | 54.0 | 46.5 | 2.19 | 12.97 | — | [38] | | PCL | 10 | — | 18.4 | 9.00 | 189.0 | — | [42] | | ATBC | 15 | 26.0 | 15.9 | 4.50 | 105.0 | 10 d堆肥环境中易碎 | [46] | | TC | 7 | 53.0 | 34.7 | 1.02 | 12.21 | 50 oC,4 d酶降解30.51% | [47] | | GT | 7 | 52.0 | 31.1 | 1.08 | 12.53 | 50 oC,4 d酶降解34.18% | [47] | | OTOA | 5 | 61.3 | 7.4 | 1.20 | 22.50 | — | [50] | | PHBV | 5 | — | — | 2.50 | 45.00 | 4个月土壤中完全降解 | [59] | | PHBV | 25 | 49.4 | 13.8 | 3.10 | 24.20 | 3周模拟土壤中完全降解 | [60] | | OLA | 15 | 44.7 | 21.7 | 3.75 | 41.50 | 16 d堆肥环境中易碎 | [61] |
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