Year-end Sale % OFF 
Abstract
ABSTRACTThis study aims to observe the effect of addition of silane coupling agent on polyvinyl alcohol and starch-PVA blend. Starch and PVA blend with citric acid addition was prepared. Silane-modified polymer was obtained by treating polyvinyl alcohol and starch-PVA blend with Trimethoxyvinylsilane. The blend has been tested against the canarium wood substrate for tensile strength. A further property like viscosity has also been evaluated. Analytical tests such as DSC and DMA proved the phenomenon of cross-linking, having shown an increase in glass transition temperature and area under the curve of tan delta. The efficient and novel method for polymerization of vinyl groups present in the PVA and PVA-starch blends has contributed to better adhesion on the wood substrate and also better cohesion between the chains.
Highlights
Polyvinyl alcohol (PVA) has been known to possess a high degree of orientation and high crystallinity in its structure [1,2,3,4,5]
Another polymer which is highly similar to PVA in structure and naturally sourced with minimum cost for processing is starch [8]
The presence of citric acid in the starch PVA blend, crosslinking of hydroxyl groups and polymerization of vinyl group in silane has increased the viscosity (SM SPVA). This is seen because citric acid helps in gelatinization of starch molecules, thereby helping the vinyl silane to create a networked structure
Summary
Polyvinyl alcohol (PVA) has been known to possess a high degree of orientation and high crystallinity in its structure [1,2,3,4,5]. Over the years PVA has been in the industrial use for various paper, textile and adhesive industries [6,7] Another polymer which is highly similar to PVA in structure and naturally sourced with minimum cost for processing is starch [8]. Starch (S) is known to exist abundantly in nature and is readily available in nature. It has many advantages such as low cost, renewable, abundant supply and environmental available. It is widely used in food, paper-making, fine chemicals, packing material industry, adhesives, etc. These starch-based wood adhesives still lack the high bonding strength and water resistance
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
