In the earlier study about polymer network of phenolic and epoxies resins mixed with linseed oil, only Phencat 15 was used as the catalyst for the phenolic resin. In this study, Phencat 382 and UH (a urea hydrochloride solution based on a 1 : 1 mole ratio of urea : hydrochloric acid 32%) will be used as catalysts to study their effects on the polymer network of phenolic and epoxy resins mixed with epoxidized linseed oil (ELO) (58%). The effect of each one of these catalysts on the curing and the properties of the formed network were investigated. It was discovered that Phencat 382 was the best catalyst for the composites. It was also discovered that ELO can play its role as plasticiser in the blends of epoxy and phenolic resins and does improve the flexural strength and other mechanical properties of the prepared resins. The storage modulus, flexural modulus, stress at peak and glass transition temperature decreased with increasing percentage by weight of ELO added irrespective of the catalysts used, while the strain yield increased. The cross-link density decreased with the increasing amount of ELO in the resins. The best properties were obtained for the 80/20 epoxy/phenolic resin blends after post-curing for 4 hours. udud
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机译：在关于酚醛树脂与亚麻籽油混合的聚合物网络的早期研究中，仅使用Phencat 15作为酚醛树脂的催化剂。在这项研究中，将使用Phencat 382和UH（基于尿素：盐酸摩尔比为1：1的32％的尿素盐酸盐溶液）作为催化剂，以研究其对酚醛和环氧树脂与环氧化混合的聚合物网络的影响亚麻籽油（ELO）（58％）。研究了每种催化剂对固化的影响以及所形成网络的性能。发现Phencat 382是复合材料的最佳催化剂。还发现ELO可以在环氧和酚醛树脂的共混物中起增塑剂的作用，并确实改善了所制备树脂的挠曲强度和其他机械性能。随使用的催化剂量的增加，储能模量，挠曲模量，峰值应力和玻璃化转变温度随所添加的ELO的重量百分比的增加而降低，而应变产率则提高。交联密度随树脂中ELO含量的增加而降低。后固化4小时后，对于80/20环氧/酚醛树脂共混物，可获得最佳性能。 ud ud
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