Preparation and Performance of Porous Silica of Sound-Absorbing Coating

Abstract:

Using the poly-acrylic acid ester modified porous silica as fillers, the E-44 epoxy resin as matrix, ethylene diamine as curing agent prepared the sound absorption coating, and the sound absorption properties of and wear resistance were tested. The results showed that: the coating wear resistance increased with the addition of filler increasing，and then decreased. The wear mass of 60%filler coating is the lowest. The absorption coefficient increases with the filler increasing, the average absorption coefficient can reach 0.22 of 1000Hz frequency sound.

• Periodical: Advanced Materials Research (Volume 568)
• Pages: 307-310
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.568.307
• Online since: September 2012
• Authors: Jin Chen, Xiao Gang Wang, Min Zhang, Ai Xia Guo, Lei Tang
• Keywords: Absorption Material, Epoxy Resin (ER), Silica

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