Development of Water-Repellent Coating from P(VDF-HFP) Polymer for Krajood Product Substrate


  • Jureeporn Yuennan
  • Chaiporn Kaew-on
  • Aphinrat Khanklaeo
  • Uraiwun Wanthong
  • Chatchai Sangpud


Krajood products, Waterproof, Polyvinylidene fluoride, hexafluoropropylene


Krajood is a type of herbaceous plant. Its scientific name is Lepironia articulate handicrafts from krajood are continuously being promoted and products are developed in various forms to make good quality and beautiful products. This research aims to study the development of water repellent from polyvinylidene fluoride hexafluoropropylene or P(VDF-HFP) polymer solution in dimethylformamide or DMF solvent with different concentration between 5 – 25 weight/volume percentage (w/v%). It is found a clear and colorless solution. The viscosity of the prepared solution was obtained at a temperature of 24 degrees Celsius in the range of 16.4 to 1,768 cPs. The krajood surface coated with 25 w/v% P(VDF-HFP) polymer solution has an average water contact angle of 94.3 ± 6.2 degree, indicating a hydrophobic surface which can prevent water absorption and least swell in the water.


Bair, B. D., Victoria, A., Andrey, V. M., & Maxim, I. P. (2021). Rheological Properties of PVDF Solutions. Journal of Siberian Federal University. Mathematics & Physics.

Baji, A., Gangadoo, S., Truong, V. K., Abtahi, M., Budiman, A., & Oopath, S. V. (2022). Fabrication of superhydrophobic polyvinylidene fluoride-co-hexafluoropropylene films enabled by nanoimprint lithography. Materials Letters, 311, 131555.

Kalyanasundaram, S., Sundaresan, B., & Hemalatha, J. (2000). Study on the viscosity of polymer solutions. Journal of Polymer Materials, 17, 91-95.

Khongwong, W., Busabok, C., & Ngernchuklin, P. (2023). Synthesis of SiC nanowires on biochar surfaces by a simple direct method. Journal of Metals, Materials and Minerals, 33(3), 1717.

Nawae, S., Tohluebaji, N., Putson, C., Muensit, N., & Yuennan, J. (2021). Effect of flow rate on the fabrication of P(VDF-HFP) nanofibers. Journal of Physics: Conference Series, 1719(1), 012070.

Suksikarn R. (2007). Study and development of Krachud basketry product in Nakhon Si Thammarat province. The 45th Kasetsart University Academic Conference: Education Major, Economics and Business Major, Administration Humanities and social sciences Major. The 45th Kasetsart University Academic Conference. 219-226. (in Thai)

Stein M. and Thessri K. (2018). Coating synthesis Nanoproperties are hydrophobic. and experimental design for learning nanotechnology. Walailak Procedia 2018(2):st136. (in Thai)

Suksom K., Kongboon W., Phonnak C., and Lertworpreecha M. (2017). Efficiency and Effectiveness of Zinc Oxide Nanoparticles Against Aspergillus sp. Fungus on Basketry Product from Local Tube Sedge. 7th SCIUS FORUM, PP2_14_05. (in Thai)

Tamphu A. and Yuennan J. (2023). Preparation of hydrophobic substances for application to Krajood. The 8th National Conference on Science and Technology 2023. (139-152) (in Thai)

Tohluebaji N., Sayoh I. and Lateh N., (2023). The Production of Paper from Krajood Waste Mixed with Waste Paper from the Office for Community Product Development. Pridiyathorn Science Journal. 1(2), 1-12. (in Thai)

Whale, E., Bulling, A. E. K., & Fry, S. C. (2023). Biochemical characterisation of cellulose and cell-wall-matrix polysaccharides in variously oxidised sugar-beet pulp preparations differing in viscosity. International Journal of Biological Macromolecules, 253, 127356.

ศูนย์ส่งเสริมศิลปาชีพระหว่างประเทศ. (2552). จักสานกระจูด. องค์ความรู้ประเภทเครื่องจักสาน.




How to Cite

Yuennan, J., Kaew-on, C., Khanklaeo, A., Wanthong, U., & Sangpud, C. (2024). Development of Water-Repellent Coating from P(VDF-HFP) Polymer for Krajood Product Substrate. Pridiyathorn Science Journal, 2(2), 22–32. Retrieved from



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