Effect of basalt modified by coupling agents with different molecular structures on foaming behavior and properties of basalt/polypropylene composites

ZHU Nenggui; LI Shengnan; ZENG Xiangbu; SHEN Chao; JIANG Tuanhui; GONG Wei; HE Li; HUANG Anrong

doi:10.13801/j.cnki.fhclxb.20230707.002

Volume 41 Issue 3

Mar. 2024

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ZHU Nenggui, LI Shengnan, ZENG Xiangbu, et al. Effect of basalt modified by coupling agents with different molecular structures on foaming behavior and properties of basalt/polypropylene composites[J]. Acta Materiae Compositae Sinica, 2024, 41(3): 1281-1289. doi: 10.13801/j.cnki.fhclxb.20230707.002

Citation:

ZHU Nenggui, LI Shengnan, ZENG Xiangbu, et al. Effect of basalt modified by coupling agents with different molecular structures on foaming behavior and properties of basalt/polypropylene composites[J]. Acta Materiae Compositae Sinica, 2024, 41(3): 1281-1289. doi: 10.13801/j.cnki.fhclxb.20230707.002

Citation:

ZHU Nenggui, LI Shengnan, ZENG Xiangbu, et al. Effect of basalt modified by coupling agents with different molecular structures on foaming behavior and properties of basalt/polypropylene composites[J]. Acta Materiae Compositae Sinica, 2024, 41(3): 1281-1289. doi: 10.13801/j.cnki.fhclxb.20230707.002

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Effect of basalt modified by coupling agents with different molecular structures on foaming behavior and properties of basalt/polypropylene composites

doi: 10.13801/j.cnki.fhclxb.20230707.002

ZHU Nenggui^{1, 2},
LI Shengnan¹,
ZENG Xiangbu^{1, 2},
SHEN Chao¹,
JIANG Tuanhui^{1, 2
,
,},
GONG Wei²,
HE Li²,
HUANG Anrong¹

1.
National Engineering Research Center for Compounding and Modification of Polymer Materials, Guiyang 550022, China
2.
College of Materials and Metallurgy, Guizhou University, Guiyang 550025, China

Funds: Talents from Guizhou Science and Technology Cooperation Platform-GCC[2022]045; Talents from Guizhou Science and Technology Cooperation Platform-GCC[2022]043; National Natural Science Foundation of China (51863003)

Received Date: 2023-04-26
Accepted Date: 2023-06-24
Rev Recd Date: 2023-06-15

Available Online: 2023-07-10

Publish Date: 2024-03-01

Abstract

Abstract

In this paper, basalt fiber (BF) was used as reinforcement phase and polypropylene (PP) as the matrix, BF/PP foam composites were prepared using a chemical foaming secondary mold opening process. The thermal properties, rheological properties, foaming behavior and mechanical properties of BF/PP foam composites modified with different sub structure coupling agents were studied using DSC, SEM and other characterization techniques. The results show that after modifying BF with different molecular structure coupling agents, the crystallization and rheological properties of the composite improve, the crystallinity increase, and the melt viscoelasticity improve. When KH-550 is used to modify BF, the foaming quality of BF/PP foamed composites is the best, with a foam cell size of 84.52 μm. Cell density is 2.45×10⁵ cells/cm³. After BF is modified by coupling agent, the flexural strength, flexural modulus, and tensile strength of the foam composite are improved compared to those of the unmodified BF; When modifying BF with KH-792, the maximum flexural strength, flexural modulus, and tensile strength are 33.4 MPa, 1919 MPa, and 21.4 MPa, respectively. This study provides a theoretical reference for the development and industrial application of BF/PP foam composite materials.
- coupling agent,
- polypropylene,
- basalt fiber,
- foaming behavior,
- mechanical property
Long Abstrsct
Innovation Points

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References(24)

References

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