Spectroscopic techniques were applied to the study of natural and synthetic gems, especially rubies. It is shown that among the spectroscopic techniques available, micro-Raman spectroscopy is the easiest to use and the most efficient. Moreover, this technique can be applied to mounted gems without r
Applications of phase transfer technique to the study and development of natural rubber
β Scribed by P. Tangboriboonrat; S. Kuhakarn; C. Tiyapiboonchaiya
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 156 KB
- Volume
- 78
- Category
- Article
- ISSN
- 0021-8995
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β¦ Synopsis
The phase transfer technique was used for surface characterization of natural rubber latex and for preparation of toughened polystyrene based on β₯-radiation vulcanized natural rubber. This process was extended to embed deproteinized natural rubber latex particles, crosslinked by β₯-ray, in polystyrene for morphologically study.
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Natural rubber (NR) was blended in various ratios with 12 kinds of tackifiers that were prepared from petroleum. The blends were heated to various temperatures (20-120ΠC) to investigate their miscibility. The blends were visually observed for transparency or opacity at each temperature and further o
Natural rubber (NR) was blended in various ratios with 17 kinds of tackifiers, which were prepared from rosin and terpenes. The blends were heated to various temperatures (20-120ΠC) in order to investigate their miscibility. The blends were visually observed for transparency or opacity at each tempe
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