Compatibilization Modification of Bamboo Powders with Aluminic Acid Ester and Its Effect on Properties of PBAT Matrix Composites

doi:10.19491/j.issn.1001-9278.2020.04.013

Abstract

Abstract:

The bamboo powders (BP) were surface modified with aluminic acid ester and then melt blended with poly(terephthalic acid succinate) (PBAT) to prepare a series of PBAT/BP composites through a heterogeneous kneading twin?screw extruder. The mechanical, thermal properties and microstructure of PBAT/BP composites were characterized by a universal testing machine, thermogravimetric analysis and scanning electron microscopy. The results indicated that the thermal stability and mechanical properties of PBAT/BP composites were improved due to the surface modification of BF with aluminic acid ester. When 1 wt % of aluminic acid ester was incorporated, the PBAT/BF composites achieved an increase in impact strength by 42 %, and in elongation at break by 92.7 %.

Key words: bamboo?plastic composite material, aluminic acid ester, impact strength, thermal stability, compatibility

CLC Number:

TQ320.6

Xiwei XIE, Yunxuan WENG, Caili ZHANG, Xinyu SONG. Compatibilization Modification of Bamboo Powders with Aluminic Acid Ester and Its Effect on Properties of PBAT Matrix Composites[J]. China Plastics, 2020, 34(4): 78-83.

Figures/Tables 12

References 13

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样品编号	BF含量/%	PBAT含量/%
1^#	0	100
2^#	20	80
3^#	30	70
4^#	40	60
5^#	50	50

样品编号	BF含量/%	PBAT含量/%
1^#	0	100
2^#	20	80
3^#	30	70
4^#	40	60
5^#	50	50

样品编号	BF含量/%	铝酸酯含量/%
6^#	50	0
7^#	50	1
8^#	50	2
9^#	50	3
10^#	50	4

样品编号	BF含量/%	铝酸酯含量/%
6^#	50	0
7^#	50	1
8^#	50	2
9^#	50	3
10^#	50	4

波数/cm^?1	振动类型	化合物
3 600~3 200	结合O—H伸缩振动	醇、酸、羟基酯等
1 050~1 010	—C—O伸缩振动	伯醇
1 150~1 100	—C—O伸缩振动	仲醇
1 200~1 150	—C—O伸缩振动	叔醇
1 470~1 400	—CH₃和—CH₂变形振动	饱和烃和烃基