methylol
英
美
n. 甲基醇；羟甲基
双语例句
- In the second route and third route, the insertion of benzoylation can effectively protect the active methylol radical and may advantageously be employed to facilitate the separation of cis-and trans-forms of the intermediate.
路线二和路线三中用苯甲酯保护活泼羟基，并可以分离顺式和反式异构体。 - Methylated methylol urea resin
甲醚化羟甲基脲树脂 - Methylol groups react with the hydroxyl groups of the cellulose to form stable ether linkage.
甲氧基基团可以和纤维素上的羟基反应形成稳定的醚键。 - The effects of molecular weights, ethynyl contents and methylol contents on thermal cure and cure kinetics of typical propargyl resins are also reviewed.
研究影响热固化过程的因素（分子量、炔基含量、羟甲基含量）和典型树脂的固化动力学。 - Synthesis of PF resins containing high methylol group content and low free formaldehyde content
低游离醛高羟甲基含量酚醛树脂的合成 - It was shown that the curing process of resoles, at first, proceeded by condensation reaction of methylol groups, and the formation of dimethylene ether linkage was predominant.
结果表明热固性酚醛树脂的固化过程，首先是羟甲基发生缩合反应，缩合反应形成醚键是主要的。 - The influence of different quantity of catalyst, reaction time and reaction temperature on the indexes of content of free formaldehyde and content of methylol group was investigated by means of orthogonal experiments.
采用正交试验方法研究了催化剂用量、反应温度、反应时间对酚醛树脂的游离醛含量、羟甲基含量2个指标的影响。 - The Influence of Methylol Decomposition on Molecular Species Distribution of the Additive Product of Polyamine and Formaldehyde
羟甲基分解对多元胺-甲醛加成物组分分布的影响 - Varying the amount of used formaldehyde, the melamine resin, which was prepared by different methylol melamine, could be obtained.
改变甲醛用量，可以制得由不同羟甲基三聚氰胺得到的密胺树脂； - A chemical determination of methylol group in active phenol-formaldehyde ( PF) resins was introduced. Methylol contents in PF resins were determined by 13C NMR and the chemical analysis method respectively.
本文提出一种酚醛树脂中羟甲基含量的化学分析法，分别以~（13）cNMR和化学分析法测定酚醛树脂的羟甲基含量。 - The rotational motion of the adsorbed water molecules is the main reason that lead to the α-relaxation process of wood. The β-relaxation process is due to the motions of the methylol groups of the cell-wall polymers in the non-crystalline region.
木材发生α松弛过程的主要原因是吸着水分子的回转取向运动，发生β松弛过程的主要原因是无定形区细胞壁物质中的伯醇羟基基团的运动。 - Reaction kinetics of Chinese black wattle tannin with methylol groups
中国黑荆单宁与羟甲基反应动力学的研究 - Determination of the Content of Methylol Group in Active Phenol-formaldehyde Resins
活性酚醛树脂中羟甲基含量的测定 - While conventional adhesive will cause free formaldehyde because of using another self-crosslinking reactive monomer methylol acrylamide.
该粘合剂一改以往自交联反应单体采用羟甲基丙烯酰胺，使粘合剂游离甲醛超标的弊端。 - In this paper, PF resins with low free formaldehyde and higher methylol content was synthesized with CaO as catalyst.
通过实验，以CaO作催化剂合成了低游离醛高羟甲基含量酚醛树脂。 - The results show that the resole resin whose methylol group index is about 3 and inherent viscosity is about 8 satisfies this system.
结果显示适合于这种体系的可熔性酚醛树脂的羟甲基指数为3左右，固有黏度为8左右； - Modification and property of nylon-66 by N methylol and N methoxymethyl
尼龙-66的N-羟甲基化和N-甲氧甲基化改性及性能 - Effects of reaction conditions on the molecular weight and methylol group content of the resole resin were studied, and the composition of the plate's thermo-sensitive layer was also studied.
研究了合成反应条件对可熔性酚醛树脂的相对分子质量和羟甲基指数的影响及该版材的热敏涂层配方。 - With no hardener, the content of methylene ether of cured UF resin is low, methylol is high, crosslinkage is low, FE is high also.
不添加固化剂时，UF树脂固化产物中亚甲基醚含量低，羟甲基含量高，其固化交联反应程度低，甲醛释放量也高。 - With hardener, the content of methylol decrease, methylene ether increase, curing agent accelerate the crosslinking and curing reaction.
添加固化剂后，UF树脂固化产物中羟甲基含量普遍降低，亚甲基醚含量提高，说明固化剂的加入促进了树脂的交联固化反应。 - The second is the first synthesis of methylol urea between urea and formaldehyde, and then add it into soy protein solution to be copolymerization.
第二种是先将甲醛与脲素合成羟甲基脲，然后在将其与大豆蛋白胶共聚。