膳食纤维是一般不易被消化的食物营养素,主要来自于植物的细胞壁,包含纤维素、半纤维素、树脂、果胶及木质素等。
Dietary fiber is generally not be digested food nutrients, mainly comes from the plant cell, including hemicellulose, cellulose and lignin pectin and resin, etc.
选用合适的复合酰化体系,通过电位滴定,测定了工业碱木质素及其改性树脂的羟值。
Hydroxyl values of straw alkali lignin and modified lignin resin were determined by potentiometric titration in suitable composite acylation system.
树脂和粘合剂(木质素)是锯末中自然存在的,能够使木屑颗粒粘合,所以它们通常不含添加剂。
Resins and binders (lignin) occurring naturally in the sawdust hold wood pellets together, so they usually contain no additives.
合成高沸醇木质素改性松香树脂,测定改性树脂的软化点、酸值和DSC - TGA曲线,并与原料松香进行比较。
High boiling solvents (HBS) lignin modified rosin was successfully synthesized by rosin and HBS lignin. These resins were characterized by acid value, soft point, DSC-TGA, and compared with rosin.
以合成的木质素基环氧树脂为基体,蒙脱土为增强材料,采用插层复合法制备了酶解木质素基复合材料。
Based on the resin with the montmorillonite as reinforcing material, the lignin-based composite material was acquired by the intercalation compounding method.
本发明公开了一种采油用堵水剂,由环氧树脂、聚乙烯聚氨、木质素磺酸钙、氯化钙、水混合组成。
The invention discloses a water shutoff agent for oil extraction, which is prepared by mixing epoxy resins, polyethylene ammonia, calcium lignosulphonate, calcium chloride and water.
木质素用于环氧树脂合成的主要方式有三种:与通用环氧树脂共混;
The application of lignin in epoxy resin can be summarized into three main ways: lignin can be used by blending with epoxy resin;
利用碱性条件下酚化改性的麦草碱木素代替部分苯酚制备了高木质素/苯酚比例和胶粘强度高的木质素酚醛树脂(LPF)胶粘剂。
The lignin-based phenol formaldehyde (LPF) adhesive with high ratio of lignin to phenol and strong adhesive was prepared by using the wheat straw soda lignin (WSSL) phenolated in alkaline medium.
利用碱性条件下酚化改性的麦草碱木素代替部分苯酚制备了高木质素/苯酚比例和胶粘强度高的木质素酚醛树脂(LPF)胶粘剂。
The lignin-based phenol formaldehyde (LPF) adhesive with high ratio of lignin to phenol and strong adhesive was prepared by using the wheat straw soda lignin (WSSL) phenolated in alkaline medium.
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