Journal of Textile Research ›› 2022, Vol. 43 ›› Issue (05): 92-96.doi: 10.13475/j.fzxb.20210700805

• Textile Engineering • Previous Articles     Next Articles

Effect of moisture regain on strength of quartz yarns before and after weaving

YU Pengju1, WANG Lili2, ZHANG Wenqi3, LIU Yang1, LI Wenbin1()   

  1. 1. State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan, Hubei 430200, China
    2. Hubei Sanjiang Boats Science & Technology Co., Ltd., Xiaogan, Hubei 432000, China
    3. Hubei Sanjiang Aerospace Hongyang Electromechanical Co., Ltd., Xiaogan, Hubei 432000, China
  • Received:2021-07-01 Revised:2021-12-03 Online:2022-05-15 Published:2022-05-30
  • Contact: LI Wenbin E-mail:Wenbin_li@wtu.edu.cn

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Abstract:

In order to study the factors affecting the strength of quartz yarns, the cross-sectional morphology of quartz fiber was characterized, the tensile properties of quartz yarns with different moisture regains and linear densities before and after weaving were tested, and the effects of warping, shedding as well as beat-up on the mechanical properties of quartz yarns were also investigated. The influence of the sizing agent on the mechanical properties of the quartz fiber was also explored. The results show that the tensile strength of quartz yarn significantly decreases with the increase of moisture regain. When the moisture regain of 95 tex quartz fiber yarn is 100%, the tensile strength decreases by 41% compared with 0%. The decrease of tensile strength of 95 tex quartz fabric that was woven under 1.0% moisture regain is as high as 60.94%. The addition of sizing agent can enhance the quartz fiber strength. When the 390 tex quartz fiber yarn is added with 100% sizing agent, the yarn strength increases by 17%. The hydrolyzing of silica and the hygroscopicity of wetting agent are the main reasons for the decrease of the strength of quartz fiber.

Key words: quartz fiber yarns, moisture regain, strength, weaving, sizing agent

CLC Number: 

  • TS102.4

Fig.1

Microscopic morphology of quartz fiber. (a) Fracture section(×15 000); (b) Fiber surface morphology(×10 000); (c) Interfibrillary morphology(×10 000)"

Fig.2

Effect of moisture regain on fracture strength"

Fig.3

Influence of moisture regain on fracture strain"

Fig.4

Quartz fiber yarns of 390 tex weaving damage (×180)"

Tab.1

Damage of warp yarn during quartz fiber yarns weaving"

线密度/tex 回潮率/% 断裂强度损失率/%
经纱1 经纱2
95 0.8 22.97 39.19
0.9 11.11 39.68
1.0 12.50 60.94
195 0.5 15.73 24.72
0.6 10.81 48.65
2.7 13.51 52.70
390 1.0 6.59 42.86
1.7 9.41 52.94
5.3 9.30 65.12

Fig.5

Effect of concentration of wetting agent on mechanical properties of quartz fiber yarns of 390 tex"

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