Journal of Textile Research ›› 2019, Vol. 40 ›› Issue (05): 70-77.doi: 10.13475/j.fzxb.20180601108

• Dyeing and Finishing & Chemicals • Previous Articles     Next Articles

In-situ synthesis of calcium carbonate from oleic acid and application there of in wet coating of polyamide

LEI Pengfei1, HUANG Yawei1, YUAN Senhao1, LI Hongyan2, WANG Chenglong1, ZHENG Jinhuan1,3()   

  1. 1. Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education,Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
    2. Huzhou Siny Label Material Co., Ltd.,Huzhou, Zhejiang 313000, China
    3. Engineering Research Center for Eco-Dyeing and Finishing of Textiles,Ministry of Education, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
  • Received:2018-06-01 Revised:2018-12-11 Online:2019-05-15 Published:2019-05-21
  • Contact: ZHENG Jinhuan E-mail:hzzjh1968@163.com

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Abstract:

In order to solve poor ink absorption and high pH value of polyamide coated fabric with calcium carbonate, novel calcium carbonate was prepared from oleic acid by in-situ synthesis. The effect of in situ synthesized calcium carbonate was evaluated by activation degree and sedimentation volume. The mechanism was investigated by Fourier transform infrared spectroscopy, X ray diffraction, scanning electron microscopy, transmission electron microscopy and thermogravimetric analysis. The in-situ synthesized calcium carbonate is used in the polyamide wet coating, the structure of the coating film and the ink absorption, mechanical properties and pH value of the coated fabric were investigated. The results show that when the content of oleic acid is 15% of the mass fraction of calcium carbonate, the in-situ synthesized calcium carbonate is the best in various properties, the activation degree is 99% and the sedimentation volume is 3.95 mL. The in-situ synthesized calcium carbonate is used in wet polyamide coating, the contact angle of coating film decreases by 8.29°, the ink length of coated fabric decreases by 10.42 mm and the pH value decreases to 7.27,the ink absorption increases, and the pH well meets the safety standards of textiles.

Key words: oleic acid, calcium carbonate, in-situ synthesis, polyamide wet coating, ink absorption

CLC Number: 

  • TS195

Fig.1

Influence of oleic acid content on activation grade and sedimentation volume of calcium carbonate"

Fig.2

FT-IR spectra of untreated calcium carbonate and calcium carbonate in-situ synthesized from oleic acid"

Fig.3

X-Ray diffraction of untreated calcium carbonate and calcium carbonate in-situ synthesized from oleic acid"

Fig.4

SEM images of untreated calcium carbonate (a) and calcium carbonate in-situ synthesized from oleic acid (b) (×5 000)"

Fig.5

TEM images of untreated calcium carbonate (a) and calcium carbonate in-situ synthesized from oleic acid (b)"

Fig.6

Influence of oleic acid content on surface morphology of polyamide wet coating film(×1 000)"

Fig.7

Influence of oleic acid content on mechanical properties of polyamide wet coating film"

Tab.1

Influence of oleic acid content on mechanical properties of polyamide wet coating film"

样品 断裂应力/MPa 断裂伸长率/% 初始弹性模量/MPa
1# 0.54 20.88 0.043 5
2# 0.66 22.17 0.078 3
3# 0.67 22.21 0.137 3
4# 0.68 23.50 0.146 2
5# 0.66 23.54 0.101 0
6# 0.62 21.71 0.052 3

Fig.8

Influence of oleic acid content on pH value of polyamide wet coated textile"

Fig.9

Influence of oleic acid content on ink length of polyamide wet coated textile"

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