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- The modified larch bark tannin extracts can be used in production of bakelite bond. 可应用于酚醛树脂绝缘板的黏合剂生产。
- The high sulfitated larch bark tannin extracts are more available to decrease the solution viscosity than the alkali treated extracts. 高度亚硫酸化的改性落叶松栲胶相比碱处理的改性落叶松栲胶更有效地降低其黏度和相对分子质量。
- The modified larch bark tannin extracts can be used in production of bakelite bo... 可应用于酚醛树脂绝缘板的黏合剂生产。
- This paper illustrates the reaction of larch bark tannin extracts with sulfite and sodium hydroxide and the tests of its solution viscosity, MW-distribution and thin-layer chromatography. 摘要通过对落叶松栲胶进行亚硫酸盐和氢氧化钠的改性,则定其溶液黏度,用不同溶剂进行分级和薄层色谱。
- Keywords larch bark tannin extracts;modification;high sulfitation;bakelite bond; 落叶松栲胶;改性;高度亚硫酸化;酚醛树脂黏合剂;
- Keywords vegetable tannin;larch bark tannin extract;intensive sulfitation;leather chemicals; 植物单宁;落叶松树皮栲胶;高度亚硫酸化;皮革化学品;
- larch bark tannin extracts 落叶松栲胶
- 10.This paper illustrates the reaction of larch bark tannin extracts with sulfite and sodium hydroxide and the tests of its solution viscosity, MW-distribution and thin-layer chromatography. 摘要通过对落叶松栲胶进行亚硫酸盐和氢氧化钠的改性,则定其溶液黏度,用不同溶剂进行分级和薄层色谱。
- PREPARATION AND PROPERTY OF SODIUM LIGNOSULFONATE FROM DAHURIAN LARCH BARK RESIDUE AFTER TANNIN EXTRACTION 落叶松树皮栲胶废渣木质素磺酸钠的制备及其物化性能研究
- Vegetable tannin extracts have been widely used in leather industry. 摘要栲胶已在制革工业获得了广泛的应用。
- Extraction and separation of oligomeric proanthocyanidins(OPC) from larch bark and quantitative (determination) of OPC has been carried out. 对落叶松树皮中的低聚原花青素进行了提取分离和含量测定。
- The key technique of the new process of tannin extraction from black wattle bark is to divide the extraction into two steps. 采用分段浸取新工艺是黑荆树皮单宁提取的关键技术。
- Meanwhile, the modification approaches of vegetable tannin extracts for the purpose of combination tanning are described. 同时,总结了有利于实施结合鞣的栲胶改性方法。
- Main ingredients: Black fat-tail scorpion, sophora flavescens, common cnidium fruit, golden larch bark, radix geutianae, tuber corydalidis, red paeony root, borneol, chlorhexidine acetate, etc. 黑肥尾蝎、苦参、蛇床子、土荆皮、龙胆草、延胡索、赤芍、冰片、醋酸洗必泰等。
- This paper reviews the combination tannages on the basis of vegetable tannin extracts,includingtheirreactionmechanisms and technological processes. 本文对各种以栲胶为基础的结合鞣法进行了综述,阐述了结合鞣的反应机理、工艺过程。
- The method of sulfomethylation modification of bayberry tannin extract was investigated. 研究了毛杨梅栲胶的磺甲基化改性方法。
- Their combination with tanning agents Cr, Al, HCHO and vegetable tannin extract was also studied. 同时研究了它们与铬、铝、甲醛和栲胶等鞣剂的结合稳定性及其产生的助鞣作用。
- Based on purification by alcohol precipiation,the purity of black wattle bark tannins was increased by 10%. 通过对黑荆树皮单宁进行醇沉纯化,可以使单宁质量分数提高10%25。
- Keywords bark residue;lignosulfonate;residue of tannin extracts; 树皮;木质素磺酸盐;栲胶废渣;
- Influencing factor was discussed for tannin extract solution absorb and regenerate by tannin extract method in production. 主要讨论栲胶法脱硫在生产中对栲胶溶液吸收和再生的诸多影响因素。
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