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Effect of high‐temperature treatment on the mechanical and thermal properties of phenolic syntactic foams
Author(s) -
Huang Chi,
Huang Zhixiong,
Wang Qiong
Publication year - 2018
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.24835
Subject(s) - materials science , syntactic foam , composite material , flexural strength , thermogravimetric analysis , thermal conductivity , glass microsphere , compressive strength , chemical engineering , microsphere , engineering
Phenolic syntactic foams were prepared with phenol–formaldehyde resin (PF), p‐toluene sulfonic acid, γ‐aminopropyltriethoxysilane (APTES), and glutaraldehyde (GA) cooperative treated hollow glass microsphere (HGM). Five types of syntactic foams were fabricated by filling different content of modified HGM. Compressive, flexural and thermal properties of the foams were investigated with respect to HGM content and treated temperature. Thermogravimetric analysis (TGA) studies presented a considerable reduction in the weight loss rate of system with the addition of HGM, the residual weight of syntactic foam with 50 vol% HGM at 800°C is 72.45%. Compression and bending tests results showed an increase on compressive and flexural properties for syntactic foams treated at high temperature with increasing HGM volume fraction. The thermal conductivity of all syntactic foams increased with temperature while decreased with introducing HGM, and thermal conduction through solid phase was the main heat transfer approach. The incorporation of HGM was beneficial to improving the thermal insulation property of syntactic foams especially at high temperatures. POLYM. ENG. SCI., 58:2200–2209, 2018. © 2018 Society of Plastics Engineers