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本文采用环氧丙烯酸酯与聚氨酯丙烯酸酯共混聚合的方法制备出新型的UV-光固化光纤涂料,其主要性能较好.研究了基体组成、引发剂、稀释剂以及固化工艺对UV-固化光纤涂料的光固化速度的影响.通过实验发现,环氧丙烯酸酯与聚氨酯丙烯酸酯的配比为 4:6~6:4、稀释剂的含量不大于20%时固化速度较快、性能较好,同时固化时灯距与固化膜厚度对固化速度的影响较大. 相似文献
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Eyewear-style three-dimensinal endoscope derived from microstructured polymer fiber with function of image transmission
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A method of fabricating multi-core polymer image fiber is proposed. Image fiber preform is fabricated by stacking thousands of polymer fibers each with a 0.25-mm diameter orderly in a die by only one step. The preform is heated and stretched into image fiber with an outer diameter of 2 mm. Then a portable eyewear-style three-dimensional (3D) endoscope system is designed, fabricated, and characterized. This endoscopic system is composed of two graded index lenses, two pieces of 0.35-m length image guide fibers, and a pair of oculars. It shows good flexibility and portability, and can provide the depth information accordingly. 相似文献
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Eyewear-style three-dimensional endoscope derived from microstructured polymer fiber with the function of image transmission
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A method of fabricating multi-core polymer image fiber is proposed.Image fiber preform is fabricated by stacking thousands of polymer fibers each with a 0.25-mm diameter orderly in a die by only one step.The preform is heated and stretched into image fiber with an outer diameter of 2mm.Then a portable eyewear-style three-dimensional(3D) endoscope system is designed,fabricated,and characterized.This endoscopic system is composed of two graded index lenses,two pieces of 0.35-m length image guide fibers,and a pair of oculars.It shows good ?exibility and portability,and can provide the depth information accordingly. 相似文献
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采用溴苯作为高折射率掺杂剂,通过界面凝胶聚合法制备了折射率呈梯度型分布的塑料光纤棒,研究发现,在聚合反应前期,混合物在真空与60-70℃的条件下聚合,而后期反应在高压气氛中进行,可以消除光纤棒中的气泡或真空泡,利用Vrentas-Duda自由体积理论,对梯度型折射率分布的形成进行了分析,建立了物理模型,并进行了模拟分析。 相似文献
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有机在同聚物改性环氧树脂的方法与机理 总被引:18,自引:0,他引:18
综述了有机硅高聚物改性环氧树脂的各种改性方法、反应机理以及改性机理的研究进展。 相似文献
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利用洛仑兹函数对梯度型聚合物光纤(棒)中折射率分布曲线进行模拟,建立折射率分布的洛仑兹函数模型.该模型只需掺杂物的初始浓度、分子体积和聚合温度3个基本参数.利用该模型对各种高折射率的掺杂物掺杂聚甲基丙烯酸甲酯(PMMA)制备的梯度型聚合物光纤中的折射率分布进行了预测,发现掺杂物的折射率比分子体积对折射率梯度的影响更大;惰性掺杂物中二苯硫(DPS)掺杂效率最高;共聚掺杂物中苯甲酸乙烯酯(VB)掺杂效率最高. 相似文献
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通过对PMMA塑料光纤中的主要损耗因素C-H谐波吸收进行了理论分析,并进行了定量计算,结果与实际测量数据一致.并从理论上验证了氘化、氟化降低塑料光纤损耗的机理.得到不同量子数的伸缩振动和弯曲振动的吸收波数和损耗.随着波长的增加,C-H谐波吸收损耗增加,而伸缩振动的吸收损耗比弯曲振动高一个数量级,且两者分别与量子数呈线性关系. 相似文献