نتایج جستجو برای: granulated rubber

تعداد نتایج: 19220  

2015
Nasser Al-Aqeeli

Scrap tires continue to be a major source of waste due to the lack of valuable and effective disposal routes. A viable solution to this problem is to recycle crumb rubber (CR)-a granulated material derived from scrap tires-and use it to develop other valuable products. Herein we report the fabrication and characterization of CR-modified coatings with anticorrosive properties on metal substrates...

Journal: :Periodica Polytechnica-civil Engineering 2021

In this study, the effects of recycled tire rubbers (RTR) and steel fiber (SF) on fresh hardened state properties self-compacted alkali activated concrete (SCAAC) were investigated. The ground granulated blast furnace slag, 1 % hooked-end SF, two types RTR utilized. crumb (CR) rubber chips (TCR) used as a substation to natural aggregates at levels 10 15 %. performances evaluated by T50 value, s...

Journal: :نشریه دانشکده فنی 0
حسین شکوهمند

in this article the transient heat transfer in rubber parts has been studied. this study is usefull for estimation of the minimum curing time of the rubber parts and thereby to ensure the quality of the rubber. also is the temperature distribution during the rubber curing is well know, then the curing time could accurately be estimated, which will lead to a better curing process. in this regard...

G.B. Das M.J. Khatun, M.K.I. Khan M.Z. Karim

The experiment was to study the effects of replacing soybean meal by rubber seed meal on growth, economics and carcass characteristics of broiler. A total of 150 day-old commercial broiler (Cobb-500) was reared for a period of 35 days. There were five treatments including T0 (without rubber seed meal), T1 (10% rubber seed meal), T2 (20% rubber seed meal), and T3 (30% rubber seed meal) and T4 (4...

Journal: :Archives of biochemistry and biophysics 2006
Stephanie C Espy Jay D Keasling Javier Castillón Katrina Cornish

The rubber-producing tree, Ficus elastica (the Indian rubber tree), requires the same substrates for rubber production as other rubber-producing plants, such as Hevea brasiliensis (the Brazilian or Para rubber tree), the major source of commercial natural rubber in the world, and Parthenium argentatum (guayule), a widely studied alternative for natural rubber production currently under commerci...

Effect of different fillers on natural rubber compounds was investigated through curing, mechanical properties and morphology studies for improving mechanical performance of rubber articles. In this work, natural rubber blends with Silica as Single-filler compounds, and blends with Silica and Carbon black as Bi-filler compounds were considered. Then, natural rubber blends with Silica, Carbon bl...

Journal: :علوم و تکنولوژی پلیمر 0
سعید تقوایی گنجعلی ارسلان بیگ زاده کاظم سبحان منش فرسا فتوحی نصراله مجیدیان

in some special cases, rubber compounds with high amounts of unsaturated elastomer are recommended with organic sulfur donors instead of mineral sulfurs. in this condition, activated sulfur is produced in situ and curingprocess is facilitated without accelerators. organic sulfur donor compounds have low thermal stability and in the vulcanization temperature produce free and activated sulfurs. t...

2008
MIN ZHANG XIAN-HUI FU WEN-TING FENG XIAOMING ZOU

Abstract: Rubber tree (Hevea brasiliensis) plantation is a major land use practiced in Xishuangbanna of south-western China. Effects of rubber plantation (RP) and tea-rubber intercropping (TRI) systems on soil organic carbon pools were evaluated by recording changes in soil organic carbon in an age sequence of 12-, 20-, 26-, and 40-year old plantations. Labile organic carbon (LOC) increased in ...

Journal: :Archives of disease in childhood 1980
L Dollberg M Gurevitz S Freier

Intestinal biopsies were performed in children suffering from coeliac and other diseases and were stained by the 'astra-blau' method for visualising granulated mast cells. The density of granulated mast cells (per microscopical field) in treated coeliac disease and in 3 control groups (patients suffering from milk allergy, failure to thrive, or protracted diarrhoea) was 15--18 cells per microsc...

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