Study on the low shrinkage rate UV adhesiveof dual curing mechanism [PDF]
, 2015 紫外光固化胶黏剂是一种新兴的胶黏剂产品，因其具有高效、环保、经济 等特点，被广泛应用于多种工业领域。但目前国内对紫外光固化胶黏剂研究较 少，所研制的紫外光固化胶黏剂主要为自由基固化型，固化收缩率大多在5%以 上，而用于触摸屏、大屏幕彩电、智能手机屏幕等行业的紫外光胶黏剂要求固 化收缩率≤3%。本文研究内容旨在利用双重固化机理降低紫外光固化胶黏剂的 固化收缩率，制备固化收缩率小于3%的紫外光固化胶黏剂。 本文利用端羟基聚丁二烯、过氧化氢和乙酸为原料，成功制备了兼具不饱 和双键和环氧基的环氧聚丁二烯 ...
陆嘉
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Catalytic effects of transition metal oxides on HTPB-based fuel polymer matrices
FirePhysChemLow regression rate due to difficult pyrolysis is a major challenge in the practical application of terminated hydroxyl‑terminated polybutadiene (HTPB)-based fuels in hybrid rocket propulsion.
Hongwei Gao +6 more
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Lipid-absorbing Polymers [PDF]
The removal of bile acids and cholesterol by polymeric absorption is discussed in terms of micelle-polymer interaction. The results obtained with a polymer composed of 75 parts PEO and 25 parts PB plus curing ingredients show an absorption of 305 to 309%,
Marsh, H. E., Jr., Wallace, C. J.
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FirePhysChemPhotothermal dual-curing adhesive is not only required to realize the basic curing function, but also has the characteristics of rapid setting and strong curing, which possesses a vital role in the molding speed, stability and structure integrity for 3D ...
Bojun Tan +7 more
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Investigating Premature Ignition of Thruster Pressure Cartridges by Vibration-Induced Electrostatic Discharge [PDF]
, 2010 Pyrotechnic thruster pressure cartridges (TPCs) are used for aeroshell separation on a new NASA crew launch vehicle. Nondestructive evaluation (NDE) during TPC acceptance testing indicated that internal assemblies moved during shock and vibration testing
Saulsberry, Regor, Woods, Stephen S.
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Mechanical properties of HTPB composite propellants in the initial period of service life [PDF]
Scientific Technical Review, 2014 Uniaxial tensile tests of different composite solid rocket propellant compositions, based on hydroxyl-terminated polybutadiene (HTPB), have shown that mechanical properties extensively change after curing, up to 100% of their initial values, during the ...
Gligorijević Nikola +6 more
doaj
A feasibility study for Scout polar launches from NASA Wallops Flight Center [PDF]
The feasibility of launching the Scout vehicle into a polar orbit from Wallops Flight Center is discussed. The impact of proposed flights on vehicle hardware and range safety are defined.
Myler, T. R.
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Cationic vinyl pyridine copolymers and products thereof [PDF]
, 1978 Quaternized, cross-linked, insoluble copolymers of unsubstituted and substituted vinyl pyridines and a dihalo organic compound are spontaneously formed at ambient temperature on mixing the two monomers in bulk, in solution or in suspension. The amount of
Rembaum, Alan
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Conductive Circuit Containing a Polymer Composition Containing Thermally Exfoliated Graphite Oxide and Method of Making the Same [PDF]
A conductive circuit containing a polymer composite, which contains at least one polymer and a modified graphite oxide material, containing thermally exfoliated graphite oxide having a surface area of from about 300 m(sup.2)/g to 2600 m(sup.2)/g, and a ...
Aksay, Ilhan A., Prud'Homme, Robert K.
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Characterization, Operation and Analysis of Test Motors Containing Aluminized Hybrid Fuels [PDF]
NASA Marshall Space Flight Center's Materials and Processes Department, with support from the Propulsion Systems Department, has renewed the development and maintenance of a hybrid test bed for exposing ablative thermal protection materials to an ...
Boyer, J. Eric +2 more
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