基于TD-NMR的PMMA木塑复合材吸湿和吸水研究

赵万磊,赵芝弘,张明辉,刘文静

Study on Moisture Absorption and Water Absorption of PMMA Wood-plastic Composites Based on TD-NMR

ZHAO Wanlei,ZHAO Zhihong,ZHANG Minghui,LIU Wenjing

表3 吸水120 h的未处理材和PMMA木塑复合材吸水率和平均T2及T2峰面积

Table 3 Water absorption, T2 average relaxation time and peak area of untreated wood and PMMA wood plastic composite material after 120 h

试件编号 吸水率/% T2(2)/ms T2(3)/ms 峰面积A(2) 峰面积A(3) 总面积A(总) PM#0 130.73 4.50 102.34 69.90 13389.10 13459.60 PM#6-25 96.68 3.65 89.09 56.75 10254.02 10310.77 PM#6-50 81.65 3.40 89.07 58.44 8295.25 8353.69 PM#6-100 34.48 2.76 33.70 47.73 4237.27 4280.99 PM#12-25 89.35 3.41 89.07 45.92 7672.14 7718.06 PM#12-50 59.67 3.40 155.52 50.78 5154.88 5205.66 PM#12-100 31.70 2.96 77.53 51.60 2316.82 2368.42 PM#24-25 90.03 3.65 135.10 50.51 7688.59 7739.10 PM#24-50 47.81 2.58 64.47 32.74 5035.80 5068.54 PM#24-100 20.79 2.40 31.14 38.36 2098.09 2136.45