卡夫木质蛋白和木质磺酸盐之间有什么区别|比较类似术语之间的差异

The卡夫木质素和木质磺酸盐之间的关键区别卡夫木质蛋白可以诱导增强并增加玻璃过渡和水溶性，而木质磺酸盐可以对机械性能产生增塑作用。

There are different types of lignin, such as soda lignin, Kraft lignin, hydrolyzed lignin, organosolv lignin, and lignosulfonates.

内容

1.Overview and Key Difference
2.What is Kraft Lignin
3.什么是木质磺酸盐
4.Kraft Lignin vs Lignosulfonate in Tabular Form
5.摘要 - 卡夫木质素与木质磺酸盐

What is Kraft Lignin?

Kraft lignin is a type of industrial lignin that is obtained fromKraft pulp. This pulp accounts for about 85% of the total lignin production in the world. The method known as the “Kraft pulp method” is the main method for the conversion of coniferous wood to pulp. This pulping method yields comparatively higher results thanalkaline制浆方法。

通常，卡夫木质素完全溶于碱性溶剂，例如NaOH。放宽蛋白是一种牛皮木蛋白。它也可溶DMSO, DMF, and ethylene glycol. However, the solubility of this substance in acetone, ethanol, and THF is poor. It is also poorly soluble in water.

We can extract kraft lignin from black liquor that is generated during wood digestion. Currently, there are some water-soluble kraft lignin types that have been prepared chemically. The method includes the preparation of a purified form of CO2-precipitated softwood kraft lignin. This forms a stable aqueous solution at a pH value of 8.9.

什么是木质磺酸盐?

Lignosulfonate is a water-soluble anionic polyelectrolyte polymer that comes as a byproduct of the production of wood pulp, which involves acidic cleavage of ether bonds. These ether bonds connect a number of constituents of lignin. Lignosulfonates are abbreviated as LS. There are other forms of sulfonated lignin (SL) types that are also lignin byproducts made mainly in the Kraft process. Both lignosulfonates and sulfonate lignin have similar uses and are often confusing terms. However, sulfonated lignin is comparatively much cheaper. Moreover, both these types appear as free-flowing powders with different colors: LS is light brown while SL is dark brown.

Kraft Lignin vs Lignosulfonate in Tabular Form

Figure 01: The Preparation of Lignosulfonate

Often, lignosulfonates show a broad range of molecular masses ranging from 1 000 to 140 000 Da. Comparatively, other types of lignin have smaller values for molecular mass, ranging from 2 000 to 3 000 Da. Lignosulfonate is nontoxic and noncorrosive; it is also biodegradable. Furthermore, we can add a range of modifications to this substance through oxidation, hydroxymethylation, sulfomethylation, and a combination of the two.

卡夫木质素和木质磺酸盐之间有什么区别?

There are different types of lignin, such as soda lignin, Kraft lignin, hydrolyzed lignin, organosolv lignin, and lignosulfonates. Kraft lignin is a type of industrial lignin that is obtained from Kraft pulp while lignosulfonate is a water-soluble anionic polyelectrolyte polymer that is a byproduct of the production of wood pulp. The key difference between Kraft lignin and lignosulfonate is that Kraft lignin can induce reinforcement and increase glass transition and water solubility, whereas lignosulfonate can have a plasticizing effect on mechanical properties.

下面的信息图列出了牛皮纸木质素和木质磺酸盐的差异，以表格形式进行比较。

摘要 - 卡夫木质素与木质磺酸盐

Kraft lignin is a type of industrial lignin that is obtained from Kraft pulp. Lignosulfonate is a water-soluble anionic polyelectrolyte polymer that comes as a byproduct of the production of wood pulp, which involves acidic cleavage of ether bonds. The key difference between Kraft lignin and lignosulfonate is that Kraft lignin can induce reinforcement and increase glass transition and water solubility, whereas lignosulfonate can have a plasticizing effect on mechanical properties.