Photostabilization of an epoxy resin by forming interpenetrating polymer networks with bisphenol-A diacrylate

Autor: Lon-An Cheng, Ming-Wei Wang, Mu-Shih Lin
Rok vydání: 1999
Předmět:
Zdroj: Polymer Degradation and Stability. 66:343-347
ISSN: 0141-3910
DOI: 10.1016/s0141-3910(99)00085-3
Popis: Bisphenol-A diacrylate (BADA) was synthesized from the reaction of bisphenol-A and acrylol chloride. Interpenetrating polymer networks (IPNs) based on diglycidyl ether of bisphenol-A (DGEBA) and BADA in weight ratios of DGEBA/BADA=100/0, 75/25 and 50/50 were prepared by using 4,4′-diaminodiphenylmethane (MDA) and benzoyl peroxide (BPO) as curing agents. Samples were irradiated with ultraviolet in a Q-UVA weather-o-meter to study their aging behavior. Experimental results indicated that the BADA thus incorporated in the IPN structure confers significant photostabilization of the epoxy, as shown by less chain scission at C O C in the epoxy, with less property loss in mechanical tests.
Databáze: OpenAIRE