Journal of Textile Research ›› 2022, Vol. 43 ›› Issue (12): 88-95.doi: 10.13475/j.fzxb.20210905408

• Dyeing and Finishing & Chemicals • Previous Articles     Next Articles

Preparation of modified carbonyl iron powder based on magnetron rough surface construction and its application in blue light curing superhydrophobic film

QIAO Luyang1, LÜ Qiaoli2, HU Qianheng1, WANG Chenglong1, ZHENG Jinhuan1   

  1. 1. Engineering Research Center for Eco-Dyeing and Finishing of Textiles, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
    2. Zhejiang Textile Engineering Society, Hangzhou, Zhejiang 310018, China
  • Received:2021-09-15 Revised:2022-05-11 Online:2022-12-15 Published:2023-01-06
  • Contact: WANG Chenglong

Abstract:

In view of the uncontrollable movement of functional particles in the curing process of superhydrophobic coating film, high energy consumption and long time consuming in traditional thermal curing process, the superhydrophobic film was prepared by modifying carbonyl iron powder and combining magnetic control technology and blue light curing technology. The optimal modification process was determined by analyzing the effects of modifier ratio, dosage, modified pH value and temperature on the modification effect of carbonyl iron powder, before the effects of magnetic field intensity on the surface contact angle and morphology of UV curable films were studied. The results show that when the mass ratio of modifier 3-(methacryloyloxy) propyl trimethoxysilane to 1H, 1H, 2H, 2H-perfluoro sunnyl trimethoxysilane is 1:3, the mass fraction is 20%, the modified pH value is 6, the modified temperature is 75 ℃ and the modified time is 1.5 h, the surface modification effect of carbonyl iron powder is the best with activity reaching 96% and the absolute value of zeta potential increasing from 22 mV to 43 mV. With the increase of magnetic field intensity, the surface contact angle of the film increases continuously. When the magnetic field intensity is set to 75 mT, the surface contact angle of the superhydrophobic film reaches 157.6° and the rolling angle is 6°, which meets the superhydrophobic standard.

Key words: superhydrophobic film, blue light curing, magnetic control technology, carbonyl iron powder, hydrophobic modification

CLC Number: 

  • TS190.8

Fig.1

Effect of mass ratio of KH570 and FAS on modification effect of carbonyl iron powder. (a) Activation degree; (b) Zeta potential"

Fig.2

Effect of mass ratio of KH570 and FAS on polymerization performance of UV curable coating slurry. (a)Polymerization rate;(b)Heat release"

Fig.3

Effect of pH value on modification effect of modified carbonyl iron powder. (a)Activation degree;(b)Zeta potential"

Fig.4

Effect of mass fraction of modifier on modification effect of carbonyl iron powder. (a) Activation degree; (b) Zeta potential"

Fig.5

Effect of mass fraction of modifier on polymerization properties of light cured coating slurry. (a)Polymerization rate;(b)Heat release"

Fig.6

Effect of reaction temperature on modification effect of carbonyl iron powder. (a) Activation degree; (b) Zeta potential"

Fig.7

XPS spectrum of carbonyl iron powder before and after modification. (a) Full spectrum; (a) F Spectrum; (c) C spectrum before modification; (d)C spectrum after modification"

Tab.1

Surface element content of carbonyl iron powder before and after modification%"

处理方式 Fe F O C Si
改性前 13.6 0 47.3 36.6 2.5
改性后 5.7 39.5 21.8 28.4 4.6

Fig.8

Hysteresis loop of carbonyl iron powder before and after modification"

Fig.9

Influence of magnetic induction on surface morphology of thin film"

Fig.10

Effect of magnetic induction on surface contact angle of UV curable film"

Fig.11

Rolling process of water droplets on film surface with contact angle of 157.6° over time"

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