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Abstract：
The research aimed to determine the tensile bond strength (TBS) between polymerized intact and ground fiber-reinforced composite (FRC) surfaces. FRC prepregs (a reinforcing fiber pre-impregnated with a semi-interpenetrating polymer network (semi-IPN) resin system; everStick C&B) were divided into two groups: intact FRCs (with a highly PMMA-enriched surface) and ground FRCs (with a low PMMA gradient). Each FRC group was treated with: StickRESIN and G-Multi PRIMER. These groups were further divided into four subgroups based on the application time of the treatment agents: 0.5, 1, 2, and 5 min. Next, a resin luting cement was applied to the FRC substrates on the top of the photo-polymerized treating agent. Thereafter, weight loss, surface microhardness, and TBS were evaluated. Three-factor analysis of variance (p ≤ 0.05) revealed significant differences in the TBS among the FRC groups. The highest TBS was recorded for the intact FRC surface treated with G-Multi PRIMER for 2 min (13.0 ± 1.2 MPa). The monomers and solvents of G-Multi PRIMER showed a time-dependent relationship between treatment time and TBS. They could diffuse into the FRC surface that has a higher PMMA gradient, further resulting in a high TBS between the FRC and resin luting cement.
摘要：
该研究旨在确定聚合的完整和地面纤维增强复合材料（FRC）表面之间的拉伸粘结强度（TBS）。FRC预浸料（用半互穿聚合物网络（半IPN）树脂体系预浸渍的增强纤维；everStickC＆B）分为两组：完整的FRC（具有高度富含PMMA的表面）和磨碎的FRC（具有低PMMA梯度）。每个FRC组都用：StickRESIN和G-MultiPRIMER治疗。根据治疗剂的应用时间，将这些组进一步分为四个亚组：0.5、1、2和5分钟。接下来,将树脂胶凝水泥施加到光聚合处理剂顶部的FRC基材上。此后,减肥,表面显微硬度，和TBS进行评估。三因素方差分析（p≤0.05）显示FRC组之间TBS的显着差异。对于用G-MultiPRIMER处理2分钟(13.0±1.2MPa)的完整FRC表面,记录到最高TBS。G-MultiPRIMER的单体和溶剂在处理时间和TBS之间显示出时间依赖性关系。它们可以扩散到具有较高PMMA梯度的FRC表面，进一步导致FRC和树脂胶凝水泥之间的高TBS。
