Blends of native corn starch and poly(ethylene-co-vinyl alcohol) (EVOH), with starch : EVOH ratios of 1 : 1 (SE-50) and 2 : 1 (SE-67A, SE-67B), were processed into blown films. SE-67A had a higher glycerol and water content and was processed at 5ЊC higher than was SE-67B. The films were conditioned
Structure and properties of flame-sprayed poly(ethylene-co-vinyl alcohol) copolymer coatings
✍ Scribed by Mustafa Öksüz; Hüseyin Yıldırım
- Publisher
- John Wiley and Sons
- Year
- 2004
- Tongue
- English
- Weight
- 373 KB
- Volume
- 94
- Category
- Article
- ISSN
- 0021-8995
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Powder coatings formed by flame spraying are being used in industrial applications. The resistance of plastics and their composite materials to chemicals, solvents, and atmospheric conditions and their high impact strength even at low service temperatures increase the importance of plastic and plastic‐based coatings. In this study, an ethylene vinyl alcohol copolymer powder was coated via flame spraying with gases of oxygen and acetylene. The bond strengths and microstructures of the coatings were determined with tensile testing, scanning electron microscopy, and Fourier transform infrared. The bond strengths of the coatings were determined according to ASTM C 633. Oxidizing, carburizing, and neutral flames were used. The bond strengths were lower for the oxidizing and carburizing coatings than for the neutral flame coatings. The results indicated that during the flame‐spraying process, the composition, gas, spraying distance, and coating thickness were important factors in the coating bond strength. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 94: 1357–1364, 2004
📜 SIMILAR VOLUMES
In the present study, ethylene/vinyl alcohol (EVAL) copolymers with different hydroxyl contents were melt mixed with styrene/maleic anhydride (SMA) copolymers. These two copolymers have functional groups capable of reacting intermolecularly, giving stable products. All EVAL copolymers were prepared
## Abstract The miscibility behavior and morphology of a series of poly(vinyl butyral‐__co__‐vinyl alcohol) (PVBA) copolymers containing 29, 52, 76, and 88 mol % of vinyl alcohol units with poly(ethylene terephthalate‐__co__‐ethylene naphthalate) (PETN) was investigated by DSC and SEM. Blends of th
Hydrogenated and maleated S-B-S block copolymer (SEBS-g-MA) was applied as a compatibilizer in melt-mixed binary blends with poly(ethylene-co-vinyl alcohol) (EVOH) and in ternaries containing high-density polyethylene (HDPE) as the major component. The techniques applied were dynamic, mechanical, an
## Abstract Isothermal melt crystallization of poly(vinyl alcohol–__co__–ethylene) with different ethylene contents was studied in the temperature range of 140°C–160°C. A differential scanning calorimeter was used to follow the energy of the crystallization process. The results were analyzed by Avr