نتایج جستجو برای: rubber addition

تعداد نتایج: 730681  

Akhiani Maryam Fateh Soheil Ghanadan Alireza Lajevardi Vahideh

Blue rubber bleb nevus syndrome is a sporadic disease with widely distributed dark blue papules and nodules and soft skin-colored compressible protuberances (rubber blebs) as well as large vascular malformations. Gasterointestinal lesions are documented by upper endoscopy and colonoscopy; hemorrhages from these lesions create irondeficinecy anemia. Other sites of visceral involvement are less c...

2013
M. Kannan

This study examined the factors that influence agricultural production and exports with specific reference to the natural rubber in India. Secondary data was used for this study. Ordinary Least Squares (OLS) technique was used in analyzing the relevant data. The OLS findings revealed that natural rubber production is significantly (p<0.05) by export of natural rubber (β=0.05), stock (β=0.21) an...

2016
Hanbing Liu Xianqiang Wang Yubo Jiao Tao Sha

Recycling waste tire rubber by incorporating it into concrete has become the preferred solution to dispose of waste tires. In this study, the effect of the volume content of crumb rubber and pretreatment methods on the performances of concrete was evaluated. Firstly, the fine aggregate and mixture were partly replaced by crumb rubber to produce crumb rubber concrete. Secondly, the mechanical an...

Journal: :international journal of environmental research 2012
m. hatamoto h. nagai s. sato m. takahashi s. kawakami

a newly developed natural rubber deproteinization process produces deproteinized natural rubber (dpnr) wastewater as an intermediate product containing a high concentration of sodium dodecyl sulfate (sds) and rubber. in this study, a novel process to recover the residual rubber and energy as methane from dpnr wastewater was developed. as a pretreatment, sds and residual rubber in dpnr wastewate...

2000
Thanas Schuman Shelby F. Thames

Chlorinated rubber, the addition and substitution reaction product of natural rubber and chlorine gas, is knOWn for its low Water vapor permeability, good chemical resistance, abrasion resistance, corrosion resistance, and flame retardant properties.' Consequently, it is used as a coating component in a.variety of coating applications including marine coatings, swimming pool coatings, and corro...

Journal: :علوم و تکنولوژی پلیمر 0
میرحمیدرضا قریشی صدیقه سلطانی قاسم نادری

natural rubber/fiber composites were prepared in a laboratory mixer using new and waste short nylon fiber by a one-step mixing process. fiber loading and bonding agent effects on the microstructure and mechanical properties of the composites were studied. the cure characteristics of composites were investigated by using rheometer. cure and scorching times of the composites decreased while maxim...

2015
Xuchu Wang Dan Wang Yong Sun Qian Yang Lili Chang Limin Wang Xueru Meng Qixing Huang Xiang Jin Zheng Tong

Ethylene is a stimulant to increase natural rubber latex. After ethylene application, both fresh yield and dry matter of latex are substantially improved. Moreover, we found that ethylene improves the generation of small rubber particles. However, most genes involved in rubber biosynthesis are inhibited by exogenous ethylene. Therefore, we conducted a proteomics analysis of ethylene-stimulated ...

ژورنال: علوم آب و خاک 2013
ایوب مرادی, , حسن گلیج, , سید بهنام سروری نژاد, , محمود بینا, ,

Rubber dam body is a lying cylinder that lies in the width of channels, rivers and weir crests and is filled with water or air or a combination of both. Shape of this structure is one of the obvious features that does not change in the path of rivers or dam spillways. Rubber dams may be with or without deflectors. Deflector is a triangular or rectangular fin that is installed down the stream of...

2017
Yuko Makita Kiaw Kiaw Ng G. Veera Singham Mika Kawashima Hideki Hirakawa Shusei Sato Ahmad Sofiman Othman Minami Matsui

Natural rubber has unique physical properties that cannot be replaced by products from other latex-producing plants or petrochemically produced synthetic rubbers. Rubber from Hevea brasiliensis is the main commercial source for this natural rubber that has a cis-polyisoprene configuration. For sustainable production of enough rubber to meet demand elucidation of the molecular mechanisms involve...

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