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聚乳酸增韧改性:研究进展.docx

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聚乳酸增韧改性:研究进展

目录

聚乳酸增韧改性概述......................................3

1.1聚乳酸的性质与特点.....................................3

1.2聚乳酸增韧的必要性.....................................4

1.3增韧改性方法分类.......................................5

聚乳酸增韧改性研究进展..................................5

2.1纳米复合材料增韧.......................................6

2.1.1纳米二氧化硅增韧.....................................7

2.1.2纳米碳管增韧.........................................8

2.1.3纳米纤维素增韧.......................................9

2.2助剂增韧..............................................10

2.2.1增韧剂的选择与作用机理..............................11

2.2.2常用增韧剂的研究与应用..............................11

2.3共聚物增韧............................................12

2.3.1醇酸类共聚物增韧....................................13

2.3.2聚己内酯共聚物增韧..................................14

2.3.3聚乙烯醇共聚物增韧..................................15

2.4助剂/共聚物复合增韧...................................16

2.4.1助剂/共聚物复合增韧的协同效应.......................17

2.4.2复合增韧体系的研究与应用............................18

聚乳酸增韧改性材料的性能评价...........................19

3.1力学性能..............................................19

3.1.1拉伸强度与断裂伸长率................................20

3.1.2冲击强度............................................21

3.1.3弯曲强度与弯曲模量..................................21

3.2热性能................................................22

3.2.1熔融温度与结晶温度..................................23

3.2.2热稳定性............................................23

3.3环境性能..............................................24

3.3.1生物降解性..........................................25

3.3.2生物相容性..........................................26

聚乳酸增韧改性材料的应用...............................27

4.1包装材料..............................................27

4.2注射成型制品..........................................28

4.3纤维制品..............................................29

4.4其他应用领域..........................................30

聚乳酸增韧改性研究展望.................................31

5.1新型增韧剂的开发与应用................................31

5.2高性能聚乳酸材料的制备...................

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