Technology of polymer and composite materials

Q Chemical Engineering Chemical Engineering Pub Date : 2020-01-01 DOI:10.31044/1684-5811-2020-21-12-543-547
I. G. Lukachevskaya, M. Lebedev, N. F. Struchkov
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Abstract

The influence of climatic factors on properties of basalt and fiberglass made by the infusion method has been studied by sequential laying some reinforcing material on the mold, impregnating with a three-component epoxy binder, consisting of ED-22, Iso-MTHFA, Agidol 53, and curing at a temperature of 160±2 °С, within 4 hours. Full-scale climatic tests of basalt fiber and fiberglass in a very cold climate zone demonstrated their resistance to climatic influences, which is confirmed by a high level of preservation of their strength parameters. Exposure of basalt fiber to natural conditions led to a decrease in tensile strength by 14% and an increase in flexural strength by 18%. The values of fiberglass increased by 9% (ultimate tensile strength) and 22% (ultimate tensile strength). Porosity measurements showed that after exposure, basalt-textolite samples increased open porosity by 62%, while glass-textolite samples decreased by 39%. After climatic tests, an increase in the average range of the inhomogeneities (Ra) of the surface of the basalt-textolite up to 0.48 μm (initial — 0.70 μm, after exposure — 1.18 μm). In fiberglass, the average roughness increases by 4 times after exposure (initial — 1.03 μm, after exposure — 4.08 μm).
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高分子及复合材料技术
研究了气候因素对灌注法制备的玄武岩和玻璃纤维性能的影响,在模具上依次铺设增强材料,用ED-22、Iso-MTHFA、Agidol 53组成的三组分环氧粘合剂浸渍,在160±2°С温度下固化4小时。玄武岩纤维和玻璃纤维在非常寒冷的气候区进行的全尺寸气候试验表明,它们对气候影响的抵抗能力,其强度参数的高水平保存证实了这一点。玄武岩纤维暴露在自然条件下,拉伸强度下降14%,弯曲强度增加18%。玻璃纤维的极限抗拉强度分别提高了9%和22%。孔隙度测量结果表明,暴露后,玄武岩-textolite样品的孔隙度增加了62%,而玻璃-textolite样品的孔隙度减少了39%。经气候试验,玄武岩-textolite表面不均匀性(Ra)的平均范围增加至0.48 μm(初始- 0.70 μm,暴露后- 1.18 μm)。在玻璃纤维中,暴露后平均粗糙度增加了4倍(初始为- 1.03 μm,暴露后为- 4.08 μm)。
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来源期刊
Chemical Engineering
Chemical Engineering 工程技术-工程:化工
CiteScore
0.06
自引率
0.00%
发文量
0
审稿时长
6-12 weeks
期刊介绍: Chemical Engineering is published monthly by Access Intelligence, primarily for chemical engineers and related technical people in the chemical process industries (CPI), as well as at engineering, design and construction companies that serve the CPI. The CPI consist of: chemicals, including petrochemicals; drugs and cosmetics; explosives and ammunition; fats and oils; fertilizers and agricultural chemicals; foods and beverages; leather tanning and finishing; lime and cement; synthetic fibers; metallurgical and metal products; paints and coatings; petroleum refining and coal products; plastics; rubber; soap and detergents; stone, clay, glass and ceramics; wood, pulp, paper and board; other chemically processed products.
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