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ROMO-NOVOLAC (BN) is prepared via condensation polymerization of Bromophenol with formaldehyde using oxalic acid as a catalyst. Epichlorohydrine was further reacted in basic medium to form Epoxy-Bromo-Novolac (EBN). FT-IR confirmed the preparation of BN and EBN. EBN is added to the commercial glass fiber, which was produced as sheets filled with polyester to be connected, the hardeners used were novolacresolehexamethylenediamine HMDA with ratios 10, 20, 30 % of the total added resin weight. A strong composite material was formed (Glass fiber enforced with epoxy bromo novolac).

Modification of The Physical and Chemical Properties of Formaldehyde by The Addition of The Glass-fiber