The latest research progress of fluorocarbon coatings

Abstract: The latest research progress of fluorocarbon coatings is introduced, including fluorocarbon containing silane urea-formaldehyde microcapsules, multi-stimulus triggering hydrophobic self-repairing fluorocarbon coatings, room temperature curing high solids FPVE fluorocarbon coatings, Bi2WO6/TiO2 composite material modified high-efficiency environmentally friendly sterilization PEVE coating, g-C3N4/Ag2WO4 fluorocarbon antibacterial coating, fluorocarbon coating for solar backplane bonding layer, NFTO/FEVE inorganic-organic hybrid coating, low temperature resistant transparent fluorocarbon coating for stainless steel, stain-resistant self-cleaning fluorocarbon elastomeric coatings, concrete coatings and anticorrosion aqueous acrylic modified fluorocarbon fluorocarbon powder coatings

Keywords: fluorocarbon resin; fluorocarbon coating; research progress

0 Preface

Fluorocarbon resin has excellent UV resistance, chemical resistance and weather resistance [1-2]

1 Solvent-based fluorocarbon coating

1.

Paul et al.

1.

Pan Yunfei et al.

1.

FEVE coating Chai et al.

1.

The attachment of marine organisms to ship hulls and marine infrastructure has always been a very important issue

1.

Gu Lizheng et al.

1.

Zhang et al.

1.
7 Low temperature resistant transparent fluorocarbon coating for stainless steel

Jiang Keruo et al.
[15] used fluorocarbon resin CF312 (FEVE) as matrix resin, isocyanate HT-100 as curing agent, and added silane coupling agent and ultraviolet absorber to prepare a low-temperature resistant transparent fluorocarbon coating for stainless steel.

.
The performance test and characterization results of the coating film show that when m (main paint): m (curing agent) = 8:1, w (ultraviolet absorber) = 1.
0%, the coating film has a flexibility of 2 mm and an impact resistance of 50 kg /cm, after being immersed in 3.
5% sodium chloride solution for 28 days, the corrosion current density is 0.
8920μA/cm2, neutral salt spray resistance is 1500h, -200℃ low temperature 48h, artificial aging 1200h.
The light rate is 15.
1%, and it has good application prospects in the field of drilling, petrochemical and liquid nitrogen stainless steel pipeline protection
.

2 Water-based fluorocarbon coating

2.
1 Stain-resistant self-cleaning fluorocarbon elastic coating

Liang Guangrong et al.
[16] used fluorocarbon elastic emulsion as the film-forming material, titanium dioxide and calcium carbonate as the main pigments and fillers, and selected appropriate additives to prepare a self-cleaning fluorocarbon elastic coating with good air permeability and stain resistance
.
The performance test and characterization results of the coating film show that m (fluorocarbon elastic emulsion) = 60%, m (fumed silica) = 1%, m (covering polymer) = 3%, m (diatomite) = At 4%, the coating's stain resistance, self-cleaning, scrub resistance, tensile strength and elongation at break meet the requirements of the elastic architectural coating standard JG/T172-2014
.

2.
2 Concrete anticorrosive water-based fluorocarbon coating

Chen Tongdan et al.
[17] used methyl methacrylate and methacrylic acid as hard monomers, butyl acrylate as soft monomer, dodecafluoroheptyl methacrylate as fluorine-containing monomer, and ammonium persulfate (APS) As initiators, sodium dodecyl sulfate (SDS) and polyoxyethylene octyl phenol ether-10 (OP-10) were used as emulsifiers to synthesize an aqueous fluorinated acrylic emulsion by semi-continuous emulsion polymerization
.
The performance test and characterization results of emulsion and coating film show: when w (dodecafluoroheptyl methacrylate)=8.
4%, w[SDS+(OP-10)]=2.
1%, w(APS) =0.
4%, the monomer conversion rate is 97.
6%, the average particle size of the obtained fluorine-containing water-based acrylic emulsion is 136.
2nm, and the solid content is 48.
2%.
Excellent anti-corrosion performance
.

3 Acrylic modified fluorocarbon powder coating

Wei Yufu et al.
[18] prepared a fluorocarbon powder coating for architectural aluminum profiles by compounding acrylic resin and fluororesin, using self-blocking isocyanate BF-1540 as curing agent
.
The performance test and characterization results of the coating film show that when w (FEVE)=w (acrylic resin)=28.
4%, w (BF-1540)=w (dodecanedioic acid DDDA)=7.
1% , W (pigment filler) = 22.
5%, w (leveling agent) = 1%, the gloss of the cured coating film is 60, the adhesion (dry/wet) is 0, and it is resistant to artificial aging after 4800h.
The rate is 90%
.
The coating has broad application prospects in the field of architectural aluminum profiles
.

4 Conclusion

At present, fluorocarbon coatings are still the coating varieties with the longest service life [19-20]
.
The research and application of fluorocarbon coatings has always been a research hotspot in the coating industry [21-24]
.
Future research directions [25-31] are: modification of fluororesin; water-based fluorocarbon coatings; research on fluorocarbon powder coatings; research on functional fluorocarbon coatings; research on high-solid fluorocarbon coatings; fluorine hybrid modified carbon coating; research fluorocarbon coating raw materials and additives
.

references

[1] Yang Fan, Wang Zhongquan, Zhong Ziqiang.
Research progress in processing technology and application of fusible polytetrafluoroethylene[J].
Organic Fluorine Industry, 2019(1): 37 － 41.

［2］，，，．[J].
，2018，33(9) : 31 － 35．

［3］，，，．[J].
，2019，40(10) : 49 － 52．

［4］，，． UV [J].
，2019，57( 5) : 27 － 30．

［5］VANESSA M M，LIVIA A，PASCALE C，et al.
Oxidative plasmatreatment of fluorocarbon surfaces for blood － contacting applications[J].
Materials ScienceForum，2019，4559: 2528 － 2533．

［6］，，，．[J].
，2019，49 ( 5) : 328 － 334，340．

［7］，．[J].
，2018，39( 12) : 28 － 31．

［8］．[J].
，2018，39( 12) : 39 － 42，48．

［9］PAUL U, LIU F C, HAN E H.
Multi - stimuli - triggered and self － repairable fluorocarbon organic coatings with urea － formaldehyde microcapsules filled with fluorosilane[J].
Journal of Materials Science ＆ Technology，2020，45: 70-83．

［10］，，，．FPVE [J].
，2018，39( 6) : 18 － 23．

［11］CHAI Y H, ZHOU F, ZHU Z Y.
High － efficiency and environment - friendly sterilization PEVE coatings modified with Bi2WO6 / TiO2 composites[J].
  Chemical Physics Letters，2018，715: 173 － 180．

［12］ ZHU Z Y, ZHOU F, ZHAN S.
Enhanced anti-fouling property of fluorocarbon resin coating ( PEVE) by the modification of g － C3N4 /Ag2WO4 composite step - scheme photocatalyst[J].
Applied Surface Science, 2019．

［13］，，，．[J].
，2019，49( 9) :26 － 29．

［14］ZHANG J Z, LI C, YAN K L, et al.
Influence of the aspectratio of sodium iron titanate whiskers on the mechanical and tribological performances of fluorocarbon composite coatings [J].
Coatings, 2019, 9( 10) : 683 － 691．

［15］，，，．[J].
，2020，39( 6) : 306 － 310．

［16］，，，．[J].
，2020，23(1) : 20 － 22．

［17］，，，．[J].
，2019，47( 10) : 246 － 249，254．

［18］，．[J].
，2018，48( 10) : 10 － 14．

［19］，，，．[J].
，2019，38( 6) : 101 －105．

［20］，，． VOC [J].
，2020，41( 4) : 14 － 17，39．［21］，，，． PVDF [J].
，2018，39( 1) : 42 － 45．

［22］，，，．[J].
，2020，41 ( 3) :37 － 40．

［23］ MEGAN M D，PASCALE C，STEPHANE T，et al.
Enhancing thebarrier properties of a fluorocarbon plasma - deposited coating by producing aninterface of amorphous oxide layer on 316L stainless steel for stent applications[J].
Surface ＆ Coatings Technology，2018，347: 209 －216．

［24］，，，．[J].
，2020，39(2) : 111 － 115．

［25］，，．[J].
，2019，29(5) : 68 － 72．

[26] Ma Haixu, Wang Liansheng, Jiang Guangming, et al.
Research on low fluorine content water-based self-cleaning fluorocarbon coatings[J].
China Paint, 2018, 33( 8): 51-53, 62.

[27] Asked Juanjuan, Liu Langlang, Liu Bin, et al.
Development of fluorocarbon resin modified water-based exterior wall coatings[J].
Chemical and Biological Engineering, 2019, 36(10): 20 -23.

[28] Yu Guoling, Li Xiaoli, Chang Jianying.
Research progress of several new zinc-rich coatings[J].
Shanghai Paint, 2020, 58(2): 30-33.

[29] Zhang Jinghai, Guo Xigang, Shi Yangdu, et al.
Development of thermosetting FEVE tetrafluorocarbon powder coating resin[J].
Organic Fluorine Industry, 2018 (4): 13 -15, 40.

[30] Yu Guoling, Zhang Jifang, Wang Xueke, et al.
The latest research progress of new high-solid coatings[J].
Elastomers, 2020, 30(2): 73-76.