Abstract
Coatings from poly(glycidoxy siloxane) resins were developed and their mechanical properties examined. Three different resins with varying numbers of methyl siloxane and glycidyl siloxane units were tested. Crystallinity was found to be a very important indicator of the mechanical properties of coatings, as the parameters such as cupping and hardness were linearly dependent on the degree of crystallinity of coatings. The method involving the spectrophotometric determination of unbounded amine curing agent was successfully applied as a way of optimizing the curing process both for expected mechanical properties and for ecological aspect. It was found that the resin with 50 methyl siloxane and 25 glycidyl siloxane units was the most appropriate for technological use because of the preferred mechanical properties and stability of technological parameters. Interestingly, this type of resin was characterized by the lowest degree of crystallinity. The curing conditions leading to the optimal product corresponded to 30 min of curing at 120°C or 20 min at 140°C. Under such conditions, the amount of released unbounded amine was the lowest. It was also found that poly(glycidoxy) siloxane resins may be ecologically valuable since the release of amine from this type of resins is smaller than that from a typical epoxy resin.
Acknowledgments
The authors wish to thank Dr. Dorota Ziółkowska for obtaining the X-ray spectra, as well as Prof. Hieronim Maciejewski from Adam Mickiewicz University Foundation for supplying poly(glycidoxy siloxane) resins.
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Articles in the same Issue
- Frontmatter
- Original articles
- Levofloxacin loaded gelrite-cellulose polymer based sustained ocular drug delivery: formulation, optimization and biological study
- Tailoring the in vitro characteristics of poly(vinyl alcohol)-nanohydroxyapatite composite scaffolds for bone tissue engineering
- Effect of nonthermal plasma treatment on the surface of dental resins immersed in artificial saliva
- Spray dried hydroxyapatite-polyvinyl alcohol biocomposites
- Study on the thermal stability and ablation properties of metallic oxide-filled silicone rubber composites using uniform design method
- NR/SBR composites reinforced with organically functionalized MWCNTs: simultaneous improvement of tensile strength and elongation and enhanced thermal stability
- The control and optimization of the curing process of epoxy coatings: a case of poly(glycidoxy siloxane) resins
- Effect of γ irradiation on the impact response of rigid polyurethane foam
- Effects of fiber surface modification on the friction coefficient of luffa fiber/polyester composites under dry sliding condition
- Effect of surface modification on the compressive properties of silica fume/polyurethane composites
- Weldability of pipe grade polyethylenes as realized from thermal and mechanical properties assessments
- Analysis on vibration characteristics of screw in filling process of dynamic injection molding machine
Articles in the same Issue
- Frontmatter
- Original articles
- Levofloxacin loaded gelrite-cellulose polymer based sustained ocular drug delivery: formulation, optimization and biological study
- Tailoring the in vitro characteristics of poly(vinyl alcohol)-nanohydroxyapatite composite scaffolds for bone tissue engineering
- Effect of nonthermal plasma treatment on the surface of dental resins immersed in artificial saliva
- Spray dried hydroxyapatite-polyvinyl alcohol biocomposites
- Study on the thermal stability and ablation properties of metallic oxide-filled silicone rubber composites using uniform design method
- NR/SBR composites reinforced with organically functionalized MWCNTs: simultaneous improvement of tensile strength and elongation and enhanced thermal stability
- The control and optimization of the curing process of epoxy coatings: a case of poly(glycidoxy siloxane) resins
- Effect of γ irradiation on the impact response of rigid polyurethane foam
- Effects of fiber surface modification on the friction coefficient of luffa fiber/polyester composites under dry sliding condition
- Effect of surface modification on the compressive properties of silica fume/polyurethane composites
- Weldability of pipe grade polyethylenes as realized from thermal and mechanical properties assessments
- Analysis on vibration characteristics of screw in filling process of dynamic injection molding machine