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- Lignin content in the pulp descreases, while carbonyl and phenolic hydroxylgroups in the residual lignin increase, and so do carbonyl groups in polysaccharides,after theactivating treatment. 经活化处理后纸浆中木素含量降低,残余木素中的羰基和酚羟基增多,聚糖中的羰基也增多。
- Modified (Ox-Dem) Kappa Number:A More Accurate Estimation of Residual Lignin Content in Pulps 改良(Ox-Dem)卡伯值:更加准确估计纸浆中残余木素的含量
- Keywords apocynum venetum;degumming;mathematical models;residual gum content;residual lignin content; 罗布麻;脱胶;数学模型;残胶率;残余木质素率;
- residual lignin content 残余木质素含量
- The results show that the lignin of Populus deltoid wood is a GS type lignin (Residual lignin in its APMP pulps is the same type) with a content of S-56.81%, G-42.42% and H-0.77%. 结果表明:黑杨木材中的木质素属GS型木质素(纸浆残余木质素仍属GS木素),而且紫丁香基型结构单元含量较高达56.;81%25,愈创木基结构单元42
- The changes in chemical structure of residual lignin in reed kraft pulp after treatment with a white rot fungus,Panus conchatus have been investigated in the present paper. 从元素组成,功能基含量,结构单元三种基团的比例和分子量及其分布等方面研究了生物降解纤维素酶苇浆残余木素的性质。
- The changes in chemical structure of residual lignin in reed kraft pulp were investigated by chemical analysis,element constitution and NMR spectroscopies. 从元素组成、功能基含量、结构单元三种基的比例和分子量及其分布等方面研究了苇浆残余木素的性质,并与芦苇木素进行了比较。
- Gengerally a higher lignin content in a particular wood species will result in lower movement or greater stability. 通常,木素含量高的某些树种,其胀缩较小或相当稳定。
- Generally a higher lignin content in a particular wood species will result in lower movement or greater stability. 通常,木素含量高的某些树种,其胀缩较小或相当稳定。
- The relationship between lignin content and relative absorptivity of IR-spectra of korean pine are studied. 研究了红松红外光谱的相对吸光度与木素含量的关系。
- The results indicate that FSSA increases with the pulp yield or lignin content of the bagasse pup decreases. 比表面积的提高有利于成纸强度的提高,紧度的增加,但使脆性增大,印刷适印性降低,不透明度下降。
- Kinetics of hydrolytic degrndation of aspen bleached and popular unbleached pulps with lignin content of 0. 本文研究了木素含量为0.23%25山杨漂白浆和1.05%25速生杨未漂浆稀酸低温多相水解降解反应动力学特性。
- The results indicated the bleaching mechanism of xylanase to be that a part of xylan and the structure of LCC in residual lignin were degraded by xylanase treatment, which makes it easier for ble... 研究认为,木聚糖酶对碱法麦草浆漂白作用主要是因为木聚糖酶降解了浆中部分木聚糖和残余木质素中的LCC结构,从而使后序漂白中漂液更易渗透,木质素的溶出更多、更易。
- The structure of p-coumaric acid and coniferyl aldehyde were founded both in residual lignin and in dissolved lignin, so resudial lignin and dissoled lignin both contained carbonyl. 残余木素和溶出木素中都发现存在对香豆酸和松柏醛结构,导致残余木素和溶出木素都中含有羰基;
- The analysis of chemical component showed that the lignin content of solid material was lower, but the carbohydrate content of solid heartwood was higher. 化学成分分析表明,实心材的木素含量较少,碳水化合物含量较高。
- Achne therum is a new non-wood fiber papermaking resource.Its ash content and lignin content are low, however, the holocellulose content is very high. 芨芨草是一种新型的、正在开发的非木材纤维造纸原料,它的木素和灰分含量低,综纤维素含量高。
- The average time at balanceable torque first decreased to least,then increased slight with the increase of lignin content. 木质素/EVA共混体系达到平衡扭矩时的平均时间随木质素的含量增加,扭矩值减小到最小后又逐渐增加。
- The lignin content of transgenic triploid Chinese white poplar (Populus tomentosa Carr.) expressing the antisense 4CL (4-coumarate: CoA ligase) cDNA was remarkably reduced. 将反义4CL(4-香豆酸辅酶A连接酶;4-coumarate: CoA ligase)基因转入三倍体毛白杨(Populus tomentosa Carr.;)
- Residual lignins from sodium sulfide pretreatment kraft pulping were studied by chemical and spectral methods. 用化学和波谱分析研究了硫化钠预处理硫酸盐制浆中残余木质素的化学结构特性。
- The results showed that lignin content,compatibilizer content,rate of plasticzier to lignin and rotation speed and temperature had obvious effects to torque. 结果表明木质素、增容剂、增塑剂、转速、温度对扭矩值有明显影响;