测试了由四种粘接工艺(常规粘接、快料粘接、常温紫外光固化粘接和升温紫外光固化粘接)制备的有机玻璃粘接缝试样的抗拉强度;应用Weibull分布理论分析了四组试样抗拉强度数据的分散性.研究表明:Weibull分布函数能够很好地描述有机玻璃粘接缝的强度分布;快料粘接工艺制备的粘接缝试样平均强度较高,粘接系数为0.83,且粘接过程耗时短,较适用于大型工程中有机玻璃结构的拼接.
Tensile strengths of PMMA specimens with adhesive joints made by four kinds of bonding technologies (conventional bonding, quick bonding, ultraviolet light polymerization bonding and ultraviolet light polymerization bonding with heat treatment) were tested.The Weibull distribution theory was used to evaluate the dispersion of tensile strength data.The results show that Weibull distribution function can well describe strength distributions.Average strength of specimens by quick bonding technology was higher and the dispersion of strengths was lower.The bonding coefficient was obtained to be 0.83.Besides, the bonding process consumed less time.So the quick bonding technology is more suitable for bonding of PMMA structures in large engineering.
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