纤维素结构

PPM活化剂处理对纤维素结构性能的影响

Effects of PPM activating agent treatment on cellulose structure and Properties

高度集束的原纱纤维高度非晶态纤维素结构

High strand integrity fibre highly amorphous cellulose structure

FT-IR和TG-DTA分析结果表明H2O2和O2不会引起半纤维素结构上明显的化学改变，木质素和碳水化合物的降解程度可能有所差异。

The results of FT-IR and TG-DTA analysis show that H2O2 and O2 can not cause obvious chemical change in the structure of hemicellulose . Also , the degree of degration of lignin and carbohydrate may be different .

预处理破坏了玉米秸秆的纤维素结构。

Pretreatment destroyed the fibrous structure of corn stalk significantly .

交联羧甲基羟丙基纤维素结构的研究

Structural study on crosslinking CARBOXYMETHYL HYDROXYPROPYL CELLULOSE

高度非晶态纤维素结构

Highly amorphous cellulose structure

然而，酶水解的最大困难是木质纤维素结构复杂使得纤维素酶与纤维素的可及度较低，不利于反应。

However , the main difficulty is the low accessibility of enzymes to the cellulose due to the complex structure of lignocellulose .

但是纤维素结构复杂稳定，降解纤维素的方法有不少缺陷，因此纤维素迄今还不能完全被利用作为化学资源。

Because of the complex structure and stability of cellulose , the degradation of cellulose have many defects , so cellulose can not yet be used as a chemical resource .

鉴于木质纤维素结构的高度复杂性以及纤维素酶的难回收性，将木质纤维素水解成还原糖成为生产燃料酒精的限速步骤。

Because of the complex configurations of cellulose and the low recycling of cellulase , the hydrolysis of cellulose to reducing sugars becomes the rate limiting step in the ethanol production process .

并提出了以与反应速度常数成比例的当量水解时间表示酶反应速度的方法，以解决因纤维素结构和产物抑制引起的非线性行为。

To avert some nonlinear influence caused by composition of cellulose material and product inhibition , an equivalent hydrolysis time , which is proportional to reaction rate constant , was used io express enzyme reaction rate .

NMMO工艺纤维素膜结构与性能的研究

Study of Structure and Property of Cellulose Membranes Prepared by NMMO Method

两种复合材料的FTIR谱图几乎一致，这说明超声波处理不会引起纤维素化学结构的改变。

From the FTIR spectra , it verified that there was no difference between these two composites . It indicated that ultrasonic force did not lead to the variation of the chemical structure of celluose .

CBH的纤维素结合结构域吸附纤维素后会导致纤维素超分子结构的破坏；则为EG的作用提供了条件。

Our study also indicated that CBH can non-hydrolytic disrupt the structure of cellulose fibers , and leads to synergism for EG in hydrolysis of crystalline cellulose .

利用X射线衍射法测得PF预聚物处理材的晶区大小和相对结晶度，结果表明，PF预聚物的引入没有改变纤维素的结构。

The size of crystalline region and relative crystallinity were measured by X-ray on the timber which was treated by PF resin . The measurement results show that the crystalline structure of cellulose baldly changed compared with untreated wood .

结果表明HEC为纤维素Ⅱ结构，随EO与纤维素质量比增加，HEC的摩尔取代度增大、结晶度减小、热稳定性能降低。

The results showed that HEC is belong to cellulose ⅱ structure , with the increase of mass ratio of EO to cellulose , MS increased , crystallinity decreased and thermal-stability reduced .

超声波作用下纤维素纤维结构与性质的研究

The Structure and Properties of Cellulose Fibers Treated with Ultrasonic Wave

复合膳食纤维素的结构及物性研究

Study on the structures and physical properties of dietary fiber complexes

氧化再生纤维素的结构与性能的表征

Characterization of Structure and Properties of the Oxidized Regenerated Cellulose

讨论建立半纤维素化学结构的一般步骤，介绍其化学结构研究的主要手段。

The general ways and means for building the chemical structure are narrated .

乙醇中碱纤维素的结构变化

The Structure Transformation of Alkaline Cellulose in Ethanol

钛醋酸纤维素溶液结构及流变性

The structure and rheology of TITANIUM-CELLULOSE acetate solution

相转化条件对纤维素膜结构与性能的影响及机理

Influence of Phase Coversion Conditions on Performance Structure of the Cellulose Membrane and It ′ s Mechanism

不同预处理条件下纤维素的结构变化及其在DMAc/LiCl中的溶解

The changes of structure and dissolution in DMAc / LiCl of cellulose after pretreated with different methods

预处理对纤维素微结构和反应性能影响的研究

A study on the effects of pretreatment by chemical activation on the fine structure and reactivity of cellulose fiber

鉴于此，本论文对江西省南昌市梅岭的6个月龄和12个月龄的毛竹竹竿半纤维素的结构进行了研究。

Therefore , in the study the hemicelluloses from bamboo stems aged six months and twelve months were characterized .

在本实验条件下，脱墨过程纤维素分子结构没有明显变化。

The results showed that molecular structure did not change obviously during enzymatic deinking of mixed office waste paper .

本文对细菌纤维素的结构特点、生物合成机理及其作为湿部添加剂在造纸工业中的应用作了详细阐述。

Its distinct structure , biosynthetic mechanism and application in papermaking as wet end additive are detailed in this paper .

壳聚糖是一种线性高分子，作为多糖是由β-（1，4）糖苷键连接的D-葡糖胺，壳聚糖可以通过甲壳素脱乙酰得到，类似于纤维素的结构。

Chitosan is a linear cellulose made up of β - ( 1,4 ) linked D-glucosamine , as well as deacetylate .

细菌纤维素在结构上主要特点为纳米级纤维束互相缠结，形成无规排列的三维网络状结构。

The main structure features of bacterial cellulose fiber bundles for the nano-scale entanglement with a random arrangement of the three-dimensional network-like .

初步研究阳离子纤维素的结构特征，并探讨阳离子纤维素对两种废纸浆的增强效果。

Meanwhile , the effects of cationic cellulose as wet end chemicals on the strengthening and the sizing of different recycled pulps were discussed in detail .