PDF
Full
Outline
In order to develop a safe and eco-friendly accelerator, the differences between zinc neodecanoate and zinc naphthenate were studied from the three aspects of volatility characteristic, Zn2+ ion content, and the promoting curing characteristics of epoxy anhydride resin. Using high purity bisphenol A epoxy and methyl hexahydrophthalic anhydride as resin matrix, zinc neodecanoate and zinc naphthenate accelerators was added to the resin matrix,respectively. And then resin cured samples were prepared through the same process, and the glass transition temperature (Tg) and thermogravimetric curves of the samples were tested. The results show that due to the characteristic of single molecular structure, high Zn2+ content, and very low volatile organic compounds (VOCs), zinc neodecanoate is environmentally friendly. Comparing to zinc naphthenate, zinc neodecanoate requires a higher temperature to ensure complete curing of the epoxy anhydride resin. But under the same existing process conditions, the Tg of cured sample accelerated by zinc neodecanoate can reach 152℃, which is 11℃ higher than that of zinc naphthenate (141℃), indicating that the cured product accelerated by zinc neodecanoate has better thermomechanical properties.
PDF
194
88
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
关闭全屏
No. 86 Xueyuan South Road, Haidian District, Beijing
010-62199257
qkjq@cast.org.cn
Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House
