Fabrication and Mechanical Properties of an Optically Transparent Glass Fiber/Polymer Matrix Composite
Fabrication and Mechanical Properties of an Optically Transparent Glass Fiber/Polymer Matrix Composite
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DOI：
10.1177/002199839202600806
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发表时间：
1992-08
影响因子：
2.9
通讯作者：
J. R. Olson;D. Day;J. Stoffer
中科院分区：
文献类型：
--
作者：
J. R. Olson;D. Day;J. Stoffer
采用单向硼硅玻璃纤维与聚甲基丙烯酸甲酯（PMMA）复合制备了具有良好光学透明度的复合材料。通过将玻璃纤维和聚合物基体的折射率（n D）匹配到±0.002以内，实现了复合材料的光学透明度。随着玻璃纤维体积百分比的增加，复合材料的透光率降低。在直径为12 μm的单向纤维中，体积占30%的复合材料在589.3 nm处的透射率在厚度为10 mm的情况下为20%。孔径为56 μm的纤维体积占30%的复合材料的透光率为45%。当把文字直接放在印刷的书页上时，可以通过复合材料清晰地阅读。含40%纤维的复合材料的抗弯强度为600mpa，是纯PMMA的6倍。同一复合材料的弯曲模量为18 MPa，比纯PMMA的2 MPa大9倍。断裂功为110 kJ/m2，是纯PMMA的45 kJ/m2的两倍多。提出了进一步改进光学性能的建议。
A composite with substantial optical transparency was produced by rein forcing poly(methyl methacrylate) (PMMA) with unidirectional borosilicate glass fibers. Optical transparency of the composite was achieved by matching the refractive index (n D ) of the glass fiber and polymer matrix to within ±0.002. The optical transmission of the composite decreased with increasing volume percentage of glass fibers. Composites con taining 30 volume percent of unidirectional 12 μm diameter fibers had a transmission at 589.3 nm of 20 percent measured through a 10 mm thickness. Composites containing 30 volume percent of 56 μm diameter fibers had an optical transmission of 45 percent. Type written text could be clearly read through the composite when it was laid directly on a printed page. Composites with 40 volume percent fiber had a flexural strength of 600 MPa which is six times greater than that of pure PMMA. The flexural modulus for the same composite was 18 MPa which is nine times greater than the 2 MPa measured for pure PMMA. The work of fracture was 110 kJ/m 2 or more than double the 45 kJ/m2 for pure PMMA. Suggestions are made for further improvements in the optical properties.