Results 151 to 160 of about 306,231 (286)

Testing of reciprocating seals for application in a Stirling cycle engine [PDF]

open access: yes
Six single stage reciprocating seal configurations to the requirements of the Stirling cycle engine were evaluated. The seals tested were: the Boeing Footseal, NASA Chevron polyimide seal, Bell seal, Quad seal, Tetraseal, and Dynabak seal.
Beck, T. L., Curulla, J. F.
core   +1 more source

DEGRADATION OF PROTECTIVE GLOVE MATERIALS EXPOSED TO COMMERCIAL PRODUCTS: A COMPARATIVE STUDY OF TENSILE STRENGTH AND GRAVIMETRIC ANALYSES [PDF]

open access: yes, 2014
Current glove guides attempt to assist in recommending which type of glove is appropriate for handling chemicals; however, they include information on less than 1% of the 89 million chemical products available today.
Pelham, Todd B
core  

Synthesis of carboxyl-terminated liquid nitrile-butadiene-butylacrylate rubber and mechanical properties of toughening epoxy resin

open access: yesHecheng xiangjiao gongye
"Carboxyl-terminated liquid nitrile rubber (CTBN) has been extensively studied for toughening modification of epoxy resin due to its good compatibility and telechelic polymer nature, allowing the carboxyl groups to react with the epoxy groups[1-2 ...
TONG Shao-kai1, YUE Yan-fang1, FENG Zhan-wei2, HE Jian-yun2 *, FAN Wei-feng2 *
doaj   +1 more source

Advanced Rotorcraft Transmission (ART) program summary [PDF]

open access: yes
The Advanced Rotorcraft Transmission (ART) Program was initiated to advance the state of the art for rotorcraft transmissions. The goal of the ART Program was to develop and demonstrate the technologies needed to reduce transmission weight by 25 pct. and
Kish, J. G., Krantz, T. L.
core   +1 more source

Study of advanced bladder technology, OF2 diborane Final report, 2 Sep. 1969 - 1 Jul. 1970 [PDF]

open access: yes
Development and characteristics of elastomeric materials for positive expulsion ...
Jones, J. F., Martin, J. W., Neff, J. A.
core   +1 more source

Technique for Evaluating the Erosive Properties of Ablative Internal Insulation Materials [PDF]

open access: yes
A technique for determining the average erosion rate versus Mach number of candidate internal insulation materials was developed for flight motor applications in 12 inch I.D. test firing hardware.
Hitner, J. M., McComb, J. C.
core   +1 more source

Modelling the permeability of nitrile rubber

open access: yes, 2016
Elastomer seals are widely used in the oil and gas industry and form small but crucial parts of critical mechanical and electronic components. Ideally, to prevent damage to such components, the seals should act as impermeable barriers. However, under the high pressures and temperatures found downhole, they are liable to suffer two main types of ...
openaire   +3 more sources

ASRM case insulation design and development [PDF]

open access: yes
This paper describes the achievements made on the Advanced Solid Rocket Motor (ASRM) case insulation design and development program. The ASRM case insulation system described herein protects the metal case and joints from direct radiation and hot gas ...
Bell, Matthew S., Tam, William F. S.
core   +1 more source

Estudo da influência de tratamentos químicos da fibra de sisal nas propriedades de compósitos com borracha nitrílica Study of the influence from chemical treatments of sisal fibers on the properties of composites with nitrile rubber

open access: yesPolímeros, 2010
A influência de diferentes tratamentos das fibras de sisal nas propriedades dos compósitos de borracha nitrílica/fibras de sisal, e borracha nitrílica/carbonato de cálcio/fibras de sisal foi investigada.
Marco A. Iozzi   +5 more
doaj  

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