INDUCED OF GAMMA IRRADIATION ON POLY VINYL ALCOHOL (PVA)

 

Hasan Fikri Safar and Ishak Ahmad*

 

Department of Chemical Sciences, Faculty of Science and Technology,

Universiti Kebangsaan Malaysia (UKM), Bangi, 43650, Selangor, Malaysia

Email: gading@ukm.edu.my

 

Introduction

 

PVA is one of the known biocompatibility water-soluble and hydrophilic polymer which is widely used in many application from an industrial view point. The effectiveness of PVA are usually improved by adding crosslinker and silane derivatives product but it comes along with several environmental implications. The potential of gamma irradiation as a source of crosslinker for development of PVA aerogel was determined. The hydrophobicity of PVA aerogel was developed by applying Chemical Vapor Deposition (CVD) technique. The property of PVA aerogel was examined. This work was successfully prepared PVA aerogel as an eco-environment approach towards a sustainable development.

 

Methodology

Solution of PVA

PVA solution in bottle

PVA irradiated in gamma cell

Polymeric solution of PVA was freeze dried

PVA aerogel was treated with silane

PVA aerogel was examined

Fig 1. Preparation of PVA aerogel with CVD

 

Results and Discussion

 

Fig 2. TGA analysis of 6 PVA aerogels

 

Fig 3. Tg analysis of 6 PVA aerogels

 

Fig 4. Water contact angle of 5 PVA aerogels: (a) 10 KGy (b) 20 KGy (c) 30 KGy (d) 40 KGy (e) 50 KGy

 

Fig 5. Morphology of 5 PVA aerogels in SEM: (a) 10 KGy (b) 20 KGy (c) 30 KGy (d) 40 KGy (e) 50 KGy

 

Conclusions

 

The PVA aerogel was successfully fabricated by using gamma radiation and enhanced hydrophobicity with CVD technique. The thermal result indicate property of PVA aerogel was improved. The PVA aerogel can be utilize for further extent especially in water remediation. The exploration of radiation energy can be conducted for new finding of green polymer and energy.

 

Acknowledgments

 

This work was supported through GP-2021-K007256 from Faculty of Science and Technology, National University Of Malaysia

 

References

 

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