Morphology， Rheological and Mechanical Properties of Polyethylene/Aluminium Oxide Composites

doi:10.19894/j.issn.1000-0518.220005

Chinese Journal of Applied Chemistry ›› 2022, Vol. 39 ›› Issue (10): 1593-1599.DOI: 10.19894/j.issn.1000-0518.220005

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Morphology， Rheological and Mechanical Properties of Polyethylene/Aluminium Oxide Composites

He-Chang SHI, Yan-Cun YU, Chang-Yu HAN()

Key Laboratory of Polymer Ecomaterials，Changchun Institute of Applied Chemistry，Chinese Academy of Sciences，Changchun 130022，China

Received:2022-01-05 Accepted:2022-05-31 Published:2022-10-01 Online:2022-10-05
Contact: Chang-Yu HAN
About author:cyhan@ciac.ac.cn

Abstract

Abstract:

Polyethylene （PE） and aluminium oxide （AO） are fused to prepare PE/AO composites with better comprehensive properties. The effect of AO mass fraction on the structure and properties of the composites is investigated by rheological analysis， thermodynamic analysis， mechanical analysis， thermal conductivity analysis and section microstructure analysis. The results show that the elastic modulus， yield strength， thermal conductivity and energy storage modulus of the composite gradually become brittle with the increase of AO mass fraction. When the AO mass fraction is 10%， the fracture strength of the composite is 18.2 MPa， and the comprehensive performance is the best.

Key words: Polyethylene, Aluminium oxide, Composites

CLC Number:

O635.1

He-Chang SHI, Yan-Cun YU, Chang-Yu HAN. Morphology， Rheological and Mechanical Properties of Polyethylene/Aluminium Oxide Composites[J]. Chinese Journal of Applied Chemistry, 2022, 39(10): 1593-1599.

Figures/Tables 7

References 22

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样品 Samples	第1次降温 First cooling		第2次升温 Second heating
样品 Samples	结晶峰温度 T_c/℃	结晶焓 ΔH_c/（J·g^-1）	熔融温度 T_m/℃	实测熔融热焓 ΔH_m/（J·g^-1）	结晶度 X_c/%
PE	112.6	109.8	127.1	160.1	54.6
PE/AO?5	113.8	119.5	127.0	175.4	63.0
PE/AO?10	114.8	115.9	127.4	169.5	64.3
PE/AO?20	116.2	102.4	126.9	144.9	61.8
PE/AO?30	114.8	90.47	126.7	121.6	59.3

样品 Samples	第1次降温 First cooling		第2次升温 Second heating
样品 Samples	结晶峰温度 T_c/℃	结晶焓 ΔH_c/（J·g^-1）	熔融温度 T_m/℃	实测熔融热焓 ΔH_m/（J·g^-1）	结晶度 X_c/%
PE	112.6	109.8	127.1	160.1	54.6
PE/AO?5	113.8	119.5	127.0	175.4	63.0
PE/AO?10	114.8	115.9	127.4	169.5	64.3
PE/AO?20	116.2	102.4	126.9	144.9	61.8
PE/AO?30	114.8	90.47	126.7	121.6	59.3

样品 Samples	模量 Modulus/MPa	屈服强度 Yield strength/MPa	断裂强度 Breaking strength/MPa	断裂伸长率 Elongation at break/%
PE	335.2±9.8	18.9±0.1	15.5±2.5	900.5±33.1
PE/AO?5	416.0±5.3	20.6±0.2	14.2±1.8	897.3±31.5
PE/AO?10	472.0±8.5	21.8±0.1	18.2±2.9	813.9±16.6
PE/AO?20	588.7±21.3	25.7±0.1	9.6±1.5	336.2±21.4
PE/AO?30	684.4±10.8	27.1±0.4	9.1±1.2	316.9±35.3

样品 Samples	模量 Modulus/MPa	屈服强度 Yield strength/MPa	断裂强度 Breaking strength/MPa	断裂伸长率 Elongation at break/%
PE	335.2±9.8	18.9±0.1	15.5±2.5	900.5±33.1
PE/AO?5	416.0±5.3	20.6±0.2	14.2±1.8	897.3±31.5
PE/AO?10	472.0±8.5	21.8±0.1	18.2±2.9	813.9±16.6
PE/AO?20	588.7±21.3	25.7±0.1	9.6±1.5	336.2±21.4
PE/AO?30	684.4±10.8	27.1±0.4	9.1±1.2	316.9±35.3

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Morphology， Rheological and Mechanical Properties of Polyethylene/Aluminium Oxide Composites

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