文献类型：期刊文献

中文题名：利用X射线衍射技术分析黄藤材微纤丝角、结晶度及γ射线的影响

英文题名：Analysis of the Microfibrilla Angles & Crystallinity Index of Daemonorops Margaritae with X-Ray Diffractometry and the Effects of γ-Ray Irradiation

作者：汪佑宏[1,2] 刘杏娥[2] 江泽慧[2] 费本华[2] 任海青[3]

第一作者：汪佑宏

通信作者：Liu, X.-E.

机构：[1]安徽农业大学林学与园林学院;[2]国际竹藤网络中心;[3]中国林业科学研究院木材工业研究所

年份：2010

期号：5

起止页码：1404-1407

中文期刊名：光谱学与光谱分析

外文期刊名：Spectroscopy and Spectral Analysis

收录：CSTPCD;;EI(收录号：20102212974710);Scopus(收录号：2-s2.0-77952793094);北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；PubMed;

基金：国家"十一五"科技支撑计划项目(2006BAD19B0401);国际竹藤网络中心基本科研业务费专项资金项目(06/07-B07;1632008011);中国博士后科学基金项目(20090450468)资助

语种：中文

中文关键词：黄藤;X射线衍射;微纤丝角;结晶度;辐照处理

外文关键词：Daemonorops margaritae; X-ray diffractometry; Microfibrilla angles; Crystallinity index; γ-ray irradiation

分类号：O657.3

摘要：为了解棕榈藤材基本材性、提高我国棕榈藤资源高附加值加工利用水平,以我国特有的黄藤为研究对象,应用X射线衍射法测定黄藤材微纤丝角、结晶度,并就γ射线辐照处理对微纤丝角、结晶度有何影响进行了分析。结果表明:纤维微纤丝角在33.4°～38.7°范围内,平均为36.1°;藤皮处微纤丝角不比藤芯处的大。当标准剂量率为2.5×103Gy.h-1、辐射剂量分别为3,9和15kGy三个水平时,辐照处理前后对应微纤丝角分别为36.2°和35.8°,35.9°和35.4°,36.2°和35.4°,较处理前分别减小了1.10%,1.39%和2.21%。纤维素结晶度在24.8%～32.0%范围内,平均为28.6%,藤皮处结晶度均比藤芯处高。辐照处理前后对应结晶度分别为28.1%和26.0%,28.1%和26.9%,28.5%和27.1%,较处理前分别减小了7.58%,4.34%和4.70%,其中当辐射剂量为3kGy时,辐照导致结晶度差异在0.001水平上极显著。
In order to find out the properties and improve the levels of high value-added processing and utilization of Chinese rattan resources, the Daemonorops Margaritae, a Chinese unique rattan, was chosen as the research material, then the microfibril angles （MFA） crystallinity index （CrI） were measured through the X-ray diffraction method, and the effects of γ-ray irradiation upon the MFA CrI were analyzed. The results show that the MFA of the cane varied from 33.4° to 38.7° with the average value of 36.1°, and the MFA of the coretex were not larger than that of the core. The MFA were 36.2 and 35.8 degrees, 35.9 and 35.4 degrees, and 36.2 and 35.4 degrees before and after irradiation with a radiation dose rate of 2.5×10^3 Gy·h^-1 and radiation dose of 3, 9 and 15 kGy, and decreased 1.10%, 1.39% and 2.21% respectively compared with the former. The CrI was in the range of 24.8%-32.0%, and the average CrI was 28.6%. The CrI of coretex was larger than that of the core. Under the same radiation conditions, the CrI was 28.1% and 26.0%, 28.1% and 26.9%, and 28.5% and 27.1% before and after irradiation, and the latter decreased 7.58%, 4.34% and 4.70% respectively compared to the former. With the radiation dose of 3 kGy, the differences in CrI between with and without irradiation were most notable in the 0.001 level.