Water sorption (WS), mechanical strength, and ion release of polymeric composites formulated with 40% as-made or milled amorphous calcium phosphate (ACP) are compared after 1, 2 and 3 months of aqueous exposure. Ethoxylated bisphenol A dimethacrylate, triethylene glycol dimethacrylate, 2-hydroxyethyl methacrylate, and methacryloxyethyl phthalate comprised the resin. The WS (mass%) peaked at 3 months. WS of as-made ACP composites was significantly higher than WS of milled ACP composites and copolymers. Both composite groups experienced decreases in biaxial flexural strength (BFS) with water aging, with milled ACP composites retaining a significantly higher BFS throughout immersion. Ion release was moderately reduced in milled ACP composites, though they remained superior to as-made ACP composites due to significantly lower WS and higher BFS after prolonged aqueous exposure.

中文翻译：

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阐明附聚物对无定形磷酸钙复合材料关键物理化学性质的作用

在暴露于水后 1、2 和 3 个月后，比较了用 40% 制成或研磨的无定形磷酸钙 (ACP) 配制的聚合物复合材料的吸水 (WS)、机械强度和离子释放。乙氧基化双酚A二甲基丙烯酸酯、二甲基丙烯酸三甘醇酯、甲基丙烯酸2-羟乙酯和邻苯二甲酸甲基丙烯酰氧基乙酯构成树脂。WS（质量%）在 3 个月时达到峰值。制成的 ACP 复合材料的 WS 显着高于研磨的 ACP 复合材料和共聚物的 WS。随着水老化，两个复合材料组的双轴弯曲强度 (BFS) 均有所下降，而经过研磨的 ACP 复合材料在整个浸泡过程中保持了显着更高的 BFS。研磨的 ACP 复合材料中的离子释放适度减少，