Results 131 to 140 of about 50,680 (325)

Hydrogen Permeation in Polyethylene: Effect of Crystallinity on Gas Transport Coefficients at Different Temperatures

open access: yesJournal of Polymer Science, Volume 64, Issue 3, Page 608-621, 1 February 2026.
Correlation of H2 permeability in semicrystalline polymers used as liners in Type IV composite tanks, versus temperature and crystallinity. ABSTRACT Semicrystalline polymers such as high‐density polyethylene (HDPE) are increasingly adopted as liners in compressed hydrogen storage tanks, due to low weight, easy processing, and high durability, together ...
Lorenzo Merlonghi   +3 more
wiley   +1 more source

Compatibility study of natural rubber and ethylene‐propylene‐diene rubber blends

open access: yesJournal of Applied Polymer Science, 2003
AbstractThe compatibility of natural rubber/ethylene‐propylene‐diene monomer (EPDM) blends with and without different compatibilizers was evaluated with viscosity measurements, differential scanning calorimetry, and scanning electron microscopy. The blends were modified with two methods. In the first method, high‐energy radiation, in the form of γ‐rays,
openaire   +1 more source

Hazards protection for space suits and spacecraft [PDF]

open access: yes, 1990
A flexible multi-layered covering article for protection against the hazards of exposure to the environment of outer space is disclosed. The covering includes an outer layer section comprising an outermost lamina of woven expanded tetrafluoroethylene ...
Dawn, Frederic S., Kosmo, Joseph J.
core   +1 more source

On the friction and sliding wear of rubber/layered silicate nanocomposites

open access: yeseXPRESS Polymer Letters, 2007
The dry sliding and friction behaviors of organoclay modified hydrogenated nitrile (HNBR) and ethylene/propylene/diene (EPDM) rubbers were studied using a pin (steel)-on-plate(rubber sheet) test configuration.
doaj   +1 more source

Morphological, Mechanical And Thermal Properties Of Amorphous Copolyester/polyoxymethylene Blends [PDF]

open access: yes, 2005
Kajian terhadap gaulan kopoliester amorfus/polioksimetilena (POM) yang telah dilaksanakan adalah terdiri daripada dua bahagian yang utama.
Kok Loon, Lam
core  

ESI-MS Analysis of Effluents from Medical Silicon Rubber [PDF]

open access: yes, 2000
The catheter tubes of medical silicon rubber were dipped in ethanol. The effluents were fractionated by thin-layer chromatography (TLC), and their fractions were analyzed by ion trap electrospray ionization mass spectrometry (ESI-MS).
Arakawa Ryuichi   +7 more
core   +1 more source

On the influence of nucleation on the toughness of iPP/EPR blends with different rubber molecular architectures

open access: yeseXPRESS Polymer Letters, 2008
The influence of α-and β-nucleating agents on the fracture performance of two different 32 wt% rubber modified isotactic Polypropylene (iPP) reactor blends is discussed as a function of the phase morphology of the investigated systems ...
doaj   +1 more source

Health Hazard Manual for Firefighters [PDF]

open access: yes, 1990
[Excerpt] Firefighters, as well as victims, can be exposed to a variety of toxic substances during a fire. Some of these toxicants are particularly insidious because they are produced by thermal decomposition before smoke makes a fire ...
Brown, Nellie J.
core   +1 more source

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