The nature of the particle surface in hevea latex and pastes of rubber hydrochloride and polyvinyl chloride
✍ Scribed by G. Schuur
- Publisher
- Elsevier Science
- Year
- 1957
- Weight
- 674 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0095-8522
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## Abstract **Summary:** Centrifugation of fresh __Hevea__ rubber latex yields three distinct fractions. The sediment bottom fraction (BF) content of membrane‐bound organelles is ca. 20 vol.‐% of latex. Prolonged storage or delayed use of fresh latex will result in disintegration and loss of the bo
The presence of the oxidative reactions of the pentose phosphate pathway in hevea latex and their interaction with the biosynthesis of rubber are demonstrated using radioisotopes. During the second oxidation±reduction reaction of the pentose phosphate pathway the tritium in C 3 of glucose-6phosphate
The aggregative stability of natural rubber ( N R ) latex stabilized by nonionic, fatty alcohol ethylene oxide condensate surfactant (Verol S-15) was studied in the presence of formic acid. Natural rubber latex having a n additional 3-5 phr surfactant is stable a t pH 2 when acidified by formic acid
The rheological behavior of centrifuged and creamed natural rubber latex concentrates and the effect of surface-active agents such as casein, polyvinyl alcohol (PVA), sodium alginate, and sodium carboxymethylcellulose ( NaCMC ) were studied at different shear rates and temperatures. The study showed