- Waterborne polymers for water repellent wood
coatings.
Waterborne polymer emulsions composed of vinyl acetate-ethylene (VAE), ethylene-vinyl chloride (EVCl), and other vinyl acetate copolymers were evaluated as polymer systems in water repellent coatings for exterior wood applications. Data presented indicates that these polymer emulsions exhibit an excellent balance of performance properties, making them the polymer of choice in ......
- Impact modifiers.
AMOCO CHEMICAL CO. Polybutene improves impact resistance of many thermoplastics, including crystal PS, high-impact PS, PP homopolymer, and elastomer-modified PP. Polybutenes are clear and stable viscous polymers with little or no odor plus resistance to thermal degradation. Available in a wide range of viscosities. In PS, polybutenes can improve impact ......
- POLYURETHANES ARE THE KEY to low emission
coatings.
Polyurethanes are growing in their popularity and use because of their design flexibility. They can be altered to suit many applications and modern systems combine flexibility, durability and strength. Polyurethane technology is versatile. Few other polymers offer such a scope of physical forms and application areas. Growing ecological concerns are ......
- Impact modifiers: product lines
reviewed.
ADVANCED RESINS INC. Manufactures a line of liquid 1,2-polybutadienes and 1,2-polybutadienestyrene copolymers for use as low-temperature impact modifiers in polyolefins, styrenics and TPE. Called Ricon, products have application in PP, peroxide-cured PE, as crosslinking polymers, and also in TPE. AMOCO CHEMICAL CO. Amoco polybutene improves impact resistance of many types ......
- Effect of plasticizer on the thermal, mechanical, and
anticorrosion properties of an epoxy primer.
The influence of the glass transition temperature and the mechanical and anticorrosion properties of factors such as the amount of plasticizer added to an epoxy primer were investigated by DSC (differential scanning calorimeter), DMA (dynamic mechanical analysis), stress-strain tests, salt fog spray tests, accelerated tests, and electrochemical tests. The addition ......
- Solvent-free urethane-acrylic hybrid polymers for
coatings.
Urethane-acrylic hybrid polymer dispersions (HPDs) can offer cost/performance advantages over common 1K coating materials such as polyurethane dispersions (PUDs), acrylic emulsions, and blends thereof. One disadvantage of both PUDs and HPDs is the inclusion of N-methylpyrrolidone (NMP) solvent, which is commonly a necessary processing solvent included at levels ranging from ......
- An integrated approach towards the study of scratch
damage of polymer.
To seek a better understanding of the scratch damage of polymers, an integrated analysis approach is proposed in this article. This integrated approach essentially involves (a) the use of a new scratch test device for testing, (b) employing microscopy techniques and image an analysis tool, VIEEW[R], for studying material damage ......