Liquid oxygen compatibility and cryogenic mechanical properties of a novel phosphorous/silicon containing epoxy-based hybrid

RSC Advances ◽  
2016 ◽  
Vol 6 (93) ◽  
pp. 91012-91023 ◽  
Author(s):  
Jialiang Li ◽  
Zhiwei Li ◽  
Hongyu Wang ◽  
Zhanjun Wu ◽  
Zhi Wang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Epoxy Resin ◽  
Liquid Oxygen ◽  
Cryogenic Mechanical Properties

A novel phosphorous/silicon containing epoxy-based hybrid was synthesized by 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) containing epoxy resin and 3-glycidoxy-propyltrimethoxysilane (GLYMO).

Cryogenic mechanical properties of epoxy resin toughened by hydroxyl-terminated polyurethane

2019 ◽  
Vol 74 ◽  
pp. 45-56 ◽  
Author(s):  
Tong Wu ◽  
Yu Liu ◽  
Na Li ◽  
Gui-Wen Huang ◽  
Cheng-Bing Qu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Epoxy Resin ◽  
Cryogenic Mechanical Properties

Study of the epoxy/amine equivalent ratio on thermal properties, cryogenic mechanical properties, and liquid oxygen compatibility of the bisphenol A epoxy resin containing phosphorus

2019 ◽  
Vol 32 (4) ◽  
pp. 429-443 ◽  
Author(s):  
Hongyu Wang ◽  
Shichao Li ◽  
Yuhuan Yuan ◽  
Xin Liu ◽  
Tao Sun ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Epoxy Resin ◽  
Photoelectron Spectroscopy ◽  
Liquid Oxygen ◽  
Test Results ◽  
Spectroscopy Analysis ◽  
X Ray ◽  
Equivalent Ratio ◽  
Epoxy Amine ◽  
Phosphorus Containing

A liquid oxygen-compatible epoxy resin is successfully prepared by changing the epoxy/amine equivalent ratio (SR) of a phosphorus-containing epoxy resin. The liquid oxygen impact test results showed that the modified resin was compatible with liquid oxygen only when the SR was 0.8. The mechanical properties at 90 K showed that the strain energy and impact toughness reached the maximum when the SR was 0.8, which suggested that the reduced rigidity might be beneficial to improve the liquid oxygen compatibility of the polymer. The thermomechanical and thermal results showed that the cross-linking density and thermal stability was proportional to SR. Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy analysis showed that the P=O group in the resin decomposed into phosphoric oxidative solids and P–N intermediates to inhibit the resin from decomposing and contacting with liquid oxygen during impact. Overall, this study provides a new idea for the design of liquid oxygen-compatible epoxy resin.

scholarly journals Effect of free volume on cryogenic mechanical properties of epoxy resin reinforced by hyperbranched polymers

2021 ◽  
Vol 202 ◽  
pp. 109565
Author(s):  
Yalin Zhao ◽  
Rongjin Huang ◽  
Zhixiong Wu ◽  
Hua Zhang ◽  
Zhengrong Zhou ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Epoxy Resin ◽  
Free Volume ◽  
Hyperbranched Polymers ◽  
Cryogenic Mechanical Properties

Effect of Epoxy Resin Concentration on Some Mechanical Properties of Carbon Fabric/ Nitrile Rubber Reinforced Composites

2019 ◽  
Vol 9 (1) ◽  
pp. 1-15
Author(s):  
Sawsan Fakhry Halim ◽  
Said Sayed Gad El Kholy ◽  
HalaFikry Naguib ◽  
Riham Samir Hegazy ◽  
Nermen Mohamed Baheg
Keyword(s):  
Mechanical Properties ◽  
Epoxy Resin ◽  
Nitrile Rubber ◽  
Reinforced Composites ◽  
Carbon Fabric

The Mechanical Properties of Organic Modified Epoxy Resin

2020 ◽  
Vol 43 (3) ◽  
pp. 10-14
Author(s):  
Georgel MIHU ◽  
Claudia Veronica UNGUREANU ◽  
Vasile BRIA ◽  
Marina BUNEA ◽  
Rodica CHIHAI PEȚU ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Epoxy Resin ◽  
Epoxy Matrix ◽  
Epoxy Resins ◽  
Mechanical Tests ◽  
Organic Modification ◽  
Three Point Bending ◽  
Modified Epoxy

Epoxy resins have been presenting a lot of scientific and technical interests and organic modified epoxy resins have recently receiving a great deal of attention. For obtaining the composite materials with good mechanical proprieties, a large variety of organic modification agents were used. For this study gluten and gelatin had been used as modifying agents thinking that their dispersion inside the polymer could increase the polymer biocompatibility. Equal amounts of the proteins were milled together and the obtained compound was used to form 1 to 5% weight ratios organic agents modified epoxy materials. To highlight the effect of these proteins in epoxy matrix mechanical tests as three-point bending and compression were performed.

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