Results 61 to 70 of about 81,798 (210)
Non-flammable elastomeric fiber from a fluorinated elastomer and containing an halogenated flame retardant [PDF]
, 1976 Flame retardant elastomeric compositions are described comprised of either spandex type polyurethane having incorporated into the polymer chain halogen containing polyols, conventional spandex type polyurethanes in physical admixture with flame retardant
Howarth, J. T. +3 more
core +1 more source
Hazards protection for space suits and spacecraft [PDF]
, 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.
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Hecheng xiangjiao gongyePolyester fiber was modified by blocked isocyanate impregnation system instead of resorcinol-formaldehyde-latex impregnation system. The effects of the amount of 2,2-dimethylolbutyric acid (DMBA) and the mass ratio of blocked isocyanate to butadiene ...
YANG Xue-qi, LIU Yao-wei, SHEN Mei, LIU Li, LI Lin
doaj +1 more source
Applied Sciences, 2016 Complicated environmental problems inevitably arise when technology advances. One major environmental problem is the presence of electromagnetic radiation. Long-term exposure to electromagnetic radiation can damage people’s health in many ways. Therefore,
Jia-Horng Lin +6 more
doaj +1 more source
Comparison of flexural properties of aramid-reinforced pultrusions having varied matrices, pretreatments and postcures [PDF]
Aramid-reinforced composite materials of equal fiber volume and varied polymer thermoset matrices were pultruded and flexurally tested to failure. The objective was to improve the flexural properties of aramid-reinforced pultrusions.
Johnson, Gary S. +2 more
core +1 more source
Potential contribution of high strength, high modulus aramid fibers to the commercial feasibility of lighter than air craft [PDF]
, 1975 Kevlar aramid fiber, fabric, rope and cable performance are reviewed along with the economics relevant to the material, structural, and reliability aspects of lighter than air ...
Sturgeon, D. L. G., Venkatachalam, T. K.
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Pengaruh Panjang Serat Dan Fraksi Volume Terhadap Sifat Bending Pada Komposit Widuri Polyester [PDF]
, 2015 The aims of this research are to find out the effect of fiber length and volume fraction on bending properties of widuri composite polyester. Widuri composite was treated by using NaOH 5% for 2 hours, fiber orientation was short random direction with the
Bate, Y. (Yanuarius) +2 more
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ALKALI TREATMENT OF POLYESTER FIBERS
Sen'i Gakkaishi, 1960 Fibers, made from polyesters of β-hydroxyethoxy aromatic acids, and their copolyester, and those from polyethylen terephthalate (PET), were treated with aqueous caustic soda solutions.Rate constants of solution, k (g/hr/cm2), are calculated from the equationwhere x is the loss of weight by solution, d0 (cm) the initial diameter of a fiber, t (hr) the ...
Sutezo Kuriyama, Mikio Korematsu
openaire +2 more sources
Komposit Hibrid Polyester Berpenguat Serbuk Batang Dan Serat Sabut Kelapa [PDF]
, 2011 Sawdust coconut trunks of palm trees and fiber coconut coir are two waste materials from the processing of coconuts and coconut tree trunks sawmill waste are plentiful materials can be utilized for producing composites using polyester resins.
Lumintang, R. C. (Romels) +2 more
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Scientific AfricanThis study investigates the production of eco-friendly polyester composites using short alkali-treated date palm fibers (DPF), bagasse fiber (BF), and hybrids with different weight percentages using compression molding technique.
Tolulope Akinkunmi Adewole +3 more
doaj +1 more source