منابع مشابه
Measurement of Densities · of Synthetic , Rubbers
A method has been lieycloped f.or prepari~lg specimens of I'\ynthetic rubber jn a form suitable for precise meas'urements of t he density. 1'he rubber 'is outgassed in a vacuum chamber, and while still under vacuum is molded into' a sheet abOu E }16 in. ' (1.6 mm) thick . . Specimens 'weighing between 1 and 2 g each are cut from this sheet 'and are, erpployed for the measurement of the dens~t.Y...
متن کاملBiodegradation of Natural and Synthetic Rubbers
Alexandros Linos1, Alexander Steinbüchel2 1 Institut für Mikrobiologie, Westfälische Wilhelms-Universität Münster, Corrensstraûe 3, 48149 Münster, Germany; Tel. :49-251-8339821; Fax:49-251-8338388; E-mail : [email protected] 2 Institut für Mikrobiologie, Westfälische Wilhelms-Universität Münster, Corrensstraûe 3, 48149 Münster, Germany; Tel. :49-251-8339821; Fax:49-251-8338388; E-mail ...
متن کاملHealth aspects of the curing of synthetic rubbers.
A commonly used tread rubber formulation was cured in the laboratory under conditions simulating vulcanization in the Bag-O-Matic press. Volatile emissions were collected on charcoal and analyzed by combined GC-mass spectrometry. The compounds identified were either contaminants present in the raw material or reaction products. Some of these compounds were also identified in charcoal tube sampl...
متن کاملChemical modification of biocatalysts.
Although several powerful methods exist for the redesign of enzyme structure and function these are typically limited to the 20 most abundant proteinogenic amino acids. The use of chemical modification overcomes this limitation to allow virtually unlimited alteration of amino acid sidechain structures. If heterogeneous mixtures of enzyme products are to be avoided, however, the required chemist...
متن کاملChemical Modification of Pvc
The degradation of PVC at a processing temperature is mostly caused by its abnormal and unsta— ble molecular structures. It has been pointed out that its allyl chloride structures play a significant role as the abnormal and unstable structures. Inasmuch as the allyl chloride struc— tures are markedly more chemically active than the normal structure, the selective chemical treatments are applica...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of the Japan Society of Colour Material
سال: 1985
ISSN: 0010-180X
DOI: 10.4011/shikizai1937.58.275