Effect of glass frits on high-temperature resistance properties of ceramifiable silicone rubber matrix composites

被引：0

作者：

Meng P. ^{[1
]}

Zhang G. ^{[1
]}

Xiong M. ^{[1
]}

Chen X. ^{[1
]}

Huang Z. ^{[1
]}

Wang Y. ^{[1
]}

机构：

[1] School of Materials Science and Engineering, Wuhan University of Technology, Wuhan

来源：

Wang, Yanbing (wangyb@whut.edu.cn) | 1600年 / Beijing University of Aeronautics and Astronautics (BUAA)卷 / 33期

关键词：

Ceramic mechanism; Fire-retardant composite; Glass frit; Muscovite; Silicone rubber;

D O I：

10.13801/j.cnki.fhclxb.20151217.002

中图分类号：

学科分类号：

摘要：

Using glass frits can improve mechanical strength and keep structure integrity of ceramifiable silicone rubber matrix composites after pyrolysis at high temperature. In order to study the effects of composition of glass frits on the high-temperature resistance properties of muscovite/silicone rubber composites, two composites were prepared by using glass frits A and B as fluxing agent, respectively. The mechanical properties, microstructure, thermal decomposition properties and ceramic mechanism of both composites were studied. The results show that tensile strength of muscovite/silicone rubber composites is 3~4 MPa at room temperature, and flexural strength of the samples after pyrolysis is 0.3-4.5 MPa and can keep structure integrity at 600-1200℃. SEM results reveal that glass frit B is helpful to form a large amount of liquid phase structure, and improve the strength and structure of ceramic layer produced after pyrolysis. TG results show that glass frits can accelerate the decomposition of silicone rubber, so the amount of glass frits should be controlled. XRD results show that adding glass frit B which includes more SiO2 and K2O to muscovite/silicone rubber composites can form an amorphous phase and a potassium aluminum silicate (K2O·Al2O3·6SiO2) during the temperature change and therefore increase the strength of ceramic layer. © 2016, BUAA Culture Media Group Ltd. All right reserved.

引用

页码：2205 / 2214

页数：9

共 15 条

[1]

Hanu L.G., Simon G.P., Mansouri J., Et al., Development of polymer ceramic composites for improved fire resistance, Journal of Material Processing Technology, 153-154, pp. 401-407, (2004)

[2]

Anyszka R., Bielinski D.M., Pedzich Z., Et al., Influence of surfaces of modified montmorillonites on properties of silicone rubber-based ceramizable composites, Journal of Thermal Analysis and Calorimetry, 119, 1, pp. 111-121, (2015)

[3]

Hamdani S., Longuet C., Perrin D., Et al., Flame retardancy of silicone-based materials, Polymer Degradation and Stability, 94, 4, pp. 465-495, (2009)

[4]

Hamdani S., Longuet C., Lopez-Cuesta J.M., Et al., Calcium and aluminium-based fillers as flame-retardant additives in silicone matrices. I. Blend preparation and thermal properties, Polymer Degradation and Stability, 95, 9, pp. 1911-1919, (2010)

[5]

Hshieh F.Y., Shielding effects of silica-ash layer on the composition of silicones and their possible applications on the fire retardancy of organic polymers, Fire and Materials, 22, 2, pp. 69-76, (1998)

[6]

Mansouri J., Burford R., Cheng Y.B., Pyrolysis behaviour of silicone-based ceramifying composites, Materials Scienceand Engineering A-Structural, 425, 1-2, pp. 7-14, (2006)

[7]

Mansouri J., Burford R., Cheng Y.B., Et al., Formation of strong ceramified ash from silicone-based compositions, Journal of Materials Science, 40, 21, pp. 5741-5749, (2005)

[8]

Hanu L.G., Simon G.P., Cheng Y.B., Thermal stability and flammability of silicone polymer composites, Polymer Degradation and Stability, 91, 6, pp. 1373-1379, (2006)

[9]

Hanu L.G., Simon G.P., Cheng Y.B., Preferential orientation of muscovite in ceramifiable silicone composites, Materials Science and Engineering A-Structural, 398, 1-2, pp. 180-187, (2005)

[10]

Mansouri J., Wood C.A., Roberts K., Et al., Investigation of the cerami-fying process of modified silicone-silicate compositions, Journal of Materials Science, 42, 15, pp. 6046-6055, (2007)

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