Adhesive bonding of eastern hemlock glulam panels with E-glass/vinyl ester reinforcement.
Adhesive bonding of eastern hemlock glulam panels with E-glass/vinyl ester reinforcement.
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东部铁杉胶合木板与无碱玻璃/乙烯基酯增强材料的粘合。
DOI：
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发表时间：
2000
影响因子：
0.9
通讯作者：
Janelle L. Hensley
中科院分区：
文献类型：
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作者：
R. Lopez;D. Gardner;Janelle L. Hensley
新型混杂纤维增强聚合物（FRP）木材复合材料的发展需要研究的树脂基体通常不与木材胶粘剂粘接。乙烯基酯树脂系统由于具有优异的耐化学性和拉伸强度以及低粘度和快速固化而广泛用于FRP复合材料的生产。提出了一种用于桥面应用的高效复合板，其通过用E-玻璃/乙烯基酯树脂面板增强铁杉胶合板来实现。在这项研究中，我们研究了乙烯基酯树脂粘合木材的粘合剪切强度，并比较这苯酚间苯二酚甲醛（PRF）粘合木材使用修改的ASTM D 905压缩剪切试验和循环分层试验。还检查了羟甲基化间苯二酚（HMR）底漆作为改善乙烯基酯与木材粘合的手段。剪切试样进行了测试干燥和真空压力饱和后的湿。在5个加速老化暴露周期期间对循环分层样本进行评价。结果表明，乙烯基酯树脂与HMR底漆可以形成牢固的、耐久的木材胶粘剂。
The development of novel hybrid fiber-reinforced polymer (FRP) wood composites requires the study of resin matrices not commonly associated with wood adhesive bonding. Vinyl ester resin systems are used extensively in the production of FRP composite materials due to excellent chemical resistance and tensile strength combined with low viscosity and fast curing. An efficient composite panel for decking applications is proposed by reinforcing eastern hemlock glulam panels with E-glass/vinyl ester resin face sheets. In this study, we examined the adhesive shear strength of vinyl ester resin bonded wood, and compared this to phenol resorcinol formaldehyde (PRF) bonded wood using a modified ASTM D 905 Compression Shear Test and a cyclic delamination test. A hydroxymethylated resorcinol (HMR) primer was also examined as a means to improve vinyl ester bonding with wood. Shear specimens were tested dry and tested wet after vacuum-pressure saturation. Cyclic delamination specimens were evaluated during five cycles of accelerated-aging exposure. Results indicated that vinyl ester resin with HMR primer can form strong and exterior-durable adhesive bonds with wood.