The Preparation of Modified Fiber Reinforced Desulfurization Gypsum Insulation Board

Abstract:

Hydrogen peroxide was used as the foaming agent to reduce the density and thermal conductivity of composite insulation materials, and glass fibers were adopted to reinforce the performance of foamed composite insulation materials. Meanwhile, the mechanical properties of foamed composite insulation materials is studied, and the internal micro-morphology of samples were observed by SEM. The strengthening mechanism of fiber was analyzed. The results indicated that mixing foaming agent significantly decrease the density and thermal conductivity of samples, when the content of foaming agent was 4%, the minimum rate of thermal conductivity was 0.051W/(m•K). Wrapped VAE emulsion on the surface of glass fiber, glass fiber after surface modification could improve the strength of samples. The flexural and compressive strength of samples that adding glass fiber after surface modification were increased by 18.75% and 6.98% compared with samples that adding unmodified glass fiber.

• Periodical: Applied Mechanics and Materials (Volume 711)
• Pages: 177-180
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.711.177
• Online since: December 2014
• Authors: Lin Lin Li, Guo Zhong Li*
• Keywords: Foamed Gypsum, Mechanical Property, Modified Fiber, Strengthening Mechanism

References

[1] Gao Qi-liang: Engineering Technology, (2011), pp.115-116.

[2] Quan Liu-quan, Li Dong-xu: Metal Mine, (2008), pp.61-64.

[3] Zhang Zeng-shou: Advanced Materials Industry, (2007), pp.27-30.

[4] Zhang Ru-quan: Phosphate & Compound Fertilizer, (2009), pp.61-62.

[5] Zhou Hong-yi, Zhou Huan: Chemical industry and environmental protection, (2001), pp.344-246.