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通过对海蓬子秸秆显微观察表明,海蓬子秸秆结构为散孔。导管单穿孔,导管壁纹孔为具缘纹孔;薄壁组织稀少,几乎不见。木纤维壁薄,为韧型纤维;对海蓬子秸秆化学组成成分分析表明,海蓬子的化学成分与木材相似,主要是纤维素、半纤维素和木质素;秸秆综纤维素含量为57.21%,木质素含量为20.11%,灰分含量为6.27%。由电子自旋共振仪测得,海蓬子秸秆碎料的自由基浓度高于海蓬子秸秆的自由基浓度。经粉碎后,海蓬子秸秆形态变小,自由基浓度增加,更利于提高其胶合强度。傅立叶红外光谱分析表明,海蓬子秸秆结构中含-CH_3、-CH_2、-OH及-C=O等官能团,经粉碎后,羟基缔合程度有所降低,游离羟基数目有所增加;表面自由能的测定表明,海蓬子碎料的表面自由能约为26.4ml/m~2,远低于木材,但是高于稻草。
Through the microscopic observation of the straw seedlings showed that the structure of the straw seedlings scattered pores. Catheter single perforation, duct wall pits with margin pits; thin-walled tissue scarce, almost missing. The wood fiber wall is thin and the fiber is tough. The chemical constituents of the stems of Pholiota have a similar chemical composition with that of the wood, which is mainly cellulose, hemicellulose and lignin. The content of straw holocellulose is 57.21 %, Lignin content of 20.11%, ash content of 6.27%. As measured by electron spin resonance, the free radical concentration of the straw pieces of the dried caragana was higher than that of the straw of the caragana. After crushed, the shape of the straw seedlings of Phragmites australis decreased, the concentration of free radicals increased, which was more conducive to improve the bonding strength. Fourier transform infrared spectroscopy analysis showed that the structures of the stems of E. salicina contained functional groups such as -CH_3, -CH_2, -OH and -C = O. After crushing, the degree of hydroxyl association decreased and the number of free hydroxyl groups increased. Measurement of energy showed that the surface free energy of the material was about 26.4ml / m ~ 2, much lower than that of wood but higher than straw.