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OALib Journal期刊
ISSN: 2333-9721
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竹束精细疏解与炭化处理对重组竹性能的影响
DOI: 10.3969/j.issn.1000-2006.2014.06.022, PP. 115-120
Keywords: 竹束,重组竹,竹基纤维复合材料,精细疏解,炭化处理
Abstract:
以去青留黄的竹片为原料,利用纤维原位可控分离技术,对竹片进行精细化疏解处理,再经浸胶、干燥后,采用热压法制备重组竹,并与普通的本色重组竹、低温炭化重组竹、高温炭化重组竹以及竹基纤维复合材料进行对比。结果表明:高温热处理是提高重组竹的耐水性能和尺寸稳定性的有效方法之一,其缺点是力学性能损失严重,静曲强度损失率达到45%;与高温炭化处理相比,精细疏解加工工艺简单,加工的重组竹力学性能基本不损失,且能更有效地改善重组竹的耐水性能和尺寸稳定性;与普通本色重组竹相比,采用精细化疏解竹束制备的重组竹,其吸水率降低75%,吸水厚度膨胀率降低67%,耐水性能和尺寸稳定性接近竹基纤维复合材料。
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