Preparation of modified urea formaldehyde resin using for flame resistant composite material
363 viewsDOI:
https://doi.org/10.54939/1859-1043.j.mst.82.2022.120-126Keywords:
Urea formaldehyde; Melamine; PS foam; Flame resistant composite.Abstract
Urea-melamine-formaldehyde (MUF) resin was synthesised and used as additive for preparing flame resistant composites. MUF resin synthesis conditions was convestigated by changing the ratio of raw materials. Some properties of resin such as viscosity, free formaldehyde content and storage time was investigated. The results of performance test showed that with F/(U+M) ratio of 1.5 and U/M ratio of 1.5, MUF resin was of low free formaldehyde content, long storage time and moderate viscosity. Composite materials was prepared with MUF resin, PS foam and other additives were of tensile strength of 2.3 Mpa, density of 0.95 g/cm3, degree of swelling in seawater of 1.8% and limitting oxygen index of 28, which was demostrated to be suitable using for fire-resistant panels.
References
[1]. Ghafafian, C., "Shrinkage Behavior of Polystyrene-based Foam Molded Parts Depending on Volatile Matter Content and Other Factors". University of California PhD Thesis, (2016).
[2]. Ramli Sulong, N.H., S.A.S. Mustapa, M.K. Abdul Rashid, "Application of expanded polystyrene (EPS) in buildings and constructions: A review". Journal of Applied Polymer Science. 136(20): pp. 47529, (2019). DOI: https://doi.org/10.1002/app.47529
[3]. Petrella, A., R. Di Mundo, and M. Notarnicola, "Recycled Expanded Polystyrene as Lightweight Aggregate for Environmentally Sustainable Cement Conglomerates". Materials (Basel, Switzerland). 13(4): pp. 988, (2020). DOI: https://doi.org/10.3390/ma13040988
[4]. Wang, L., et al., "The flame resistance properties of expandable polystyrene foams coated with a cheap and effective barrier layer". Construction and Building Materials. 176: pp. 403-414, (2018). DOI: https://doi.org/10.1016/j.conbuildmat.2018.05.023
[5]. Cao, B., et al., "The flammability of expandable polystyrene foams coated with melamine modified urea formaldehyde resin". Journal of Applied Polymer Science. 134(5), (2017). DOI: https://doi.org/10.1002/app.44423
[6]. Wang, Z., et al., "Enhancing the thermal stability, water repellency, and flame retardancy of wood treated with succinic anhydride and melamine-urea-formaldehyde resins". Holzforschung. 74(10): pp. 957-965, (2020). DOI: https://doi.org/10.1515/hf-2019-0213
[7]. Park, B.-D., S.-M. Lee, J.-K. Roh, "Effects of formaldehyde/urea mole ratio and melamine content on the hydrolytic stability of cured urea-melamine-formaldehyderesin". European Journal of Wood and Wood Products. 67(1): p. 121-123, (2009). DOI: https://doi.org/10.1007/s00107-008-0277-x
[8]. No, B., M. Kim, "Syntheses and properties of low‐level melamine‐modified urea–melamine–formaldehyde resins". Journal of Applied Polymer Science. 93: pp. 2559-2569, (2004). DOI: https://doi.org/10.1002/app.20778
