Journal of Jilin University(Engineering and Technology Edition) ›› 2022, Vol. 52 ›› Issue (10): 2300-2306.doi: 10.13229/j.cnki.jdxbgxb20210224

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Toughening effect of short basalt fiber on unsaturated polyester resin composites

Kai-feng YU1,2(),Xiao-ling HE1,2,Jun-tao LI3,Ce LIANG1,2()   

  1. 1.College of Materials Science and Engineering，Jilin University，Changchun 130022，China
    2.Key Laboratory of Automobile Materials，Ministry of Education，Jilin University，Changchun 130022，China
    3.Changchun Faway Adient Automotive Systems Co. ，Ltd. ，Changchun 130011，China
  • Received:2021-03-20 Online:2022-10-01 Published:2022-11-11
  • Contact: Ce LIANG E-mail:yukf@jlu.edu.cn;liangce@jlu.edu.cn

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Abstract:

The interlayer toughened basalt fiber/unsaturated polyester resin （BF/UP） composites with short basalt fiber（SBF） were prepared. The Mode II interlaminar fracture toughness， the tensile properties and bending properties of composites with different lengths and surface densities were investigated. The studies show that SBF can improve the Mode II interlaminar fracture toughness， tensile properties and bending properties of composites. When the length of SBF is 6 mm and the surface density is 30 g/m2， the Mode II interlaminar fracture toughness， tensile strength， elongation at break， flexural strength and energy absorption of the composites have the maximum improvement， which are 103%， 27%， 50%， 101% and 58% respectively.

Key words: composites, short basalt fiber, Mode II interlaminar fracture toughness, tensile properties, bending properties

CLC Number: 

  • TG327

Fig.1

Initial SBF and processed SBF"

Fig.2

Schematic representation of toughened composite fabrication process"

Fig.3

Schematic diagram of mode II interlaminarfracture test"

Fig.4

Schematic diagram of tensile test"

Fig.5

Schematic diagram of 3 point bending test"

Fig.6

Mode II interlaminar fracture toughness of composites with different SBF lengths"

Fig.7

Mode II interlaminar fractured morphology of composites with different SBF lengths"

Fig.8

Crack growth diagram of composite with SBF length of 6 mm and surface density of 30 g/m2"

Fig.9

Mode II interlaminar fractured morphology of composites"

Fig.10

Mode II interlaminar fracture toughness of composites with different SBF surface densities"

Fig.11

Mode II interlaminar fractured morphology of composites with different SBF densities"

Fig.12

Tensile properties of composites with different SBF lengths"

Fig.13

Tensile properties of composites with different SBF surface densities"

Fig.14

Flexural properties of composites with different SBF lengths"

Fig.15

Flexural properties of composites with different SBF surface densities"

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