A better method of decreasing free formaldehyde and free phenol during the synthesis of phenolic resol resin was investigated. 经分析,改性后的酚醛树脂中,游离酚和游离醛的含量进一步降低。
Indiaand China have agreed to speed up the process of resol. 印中加速边界划分对话进程。
Study on salt resistance of resol crosslinking partial hydrolytic polyacrylamide gel 水溶性酚醛交联聚丙烯酰胺凝胶体系耐盐老化性研究
Preparation of WS-F Adhesive of Resol WS&F酚醛树脂胶粘剂的合成研究
Thermocuring and heat resistance of the complexes of sodium borate with phenol-formaldehyde resol resin were studied by thermal analysis and infrared spectroscopy. 利用热分析法和红外分析法,研究了硼酸钠/甲阶酚醛树脂配合物的热固化反应过程和耐热性。
The paper analyses the structure, curing conditions and the properties of the cardanol resol which can be made from cashew nut oil produced in Hainan Island. 采用我国海南岛产腰果油制得的槚如果酚合成了高邻位热固性酚醛树脂,并对所合成的树脂的结均、固化条件、固化后树脂的性能进行了分析。
Influence of the composition on gelatification of phenol-formaldehyde ( PF) resol resin/ bo-rate ( Na2B4O7 · 10H2O) ( SB) aqueous solution systems was investigated by the phase diagram and the viscosity measurement. 利用凝胶相图和粘度测定研究了组成对甲阶酚醛树脂(PF)/硼酸盐(Na2B4O7·10H2O)(SB)水溶液体系凝胶化的影响。
Study on the modified resin for advanced offset ink ⅰ. synthesis and characterization of resol 高级胶印油墨树脂的合成与改性研究Ⅰ.甲阶酚醛缩合物的合成与表征
Free phenol content and free formaldehyde content in the water-soluble resol were not more than 10% and 1.4% respectively. 在适宜的反应条件下,制得了游离酚含量和游离甲醛含量均较小的水溶性酚醛树脂。
In this paper, the synthetic method of high-ortho resol resin and influence of other chemicals ingredients on the adhesive was discussed. 讨论了高邻位酚醛树脂合成及其它助剂对减震胶性能的影响。
The preparation and characterization of a resol type phenolic resin anchoring agent modified by nano-montmorillonite 纳米粘土改性酚醛树脂结合剂的制备及表征
In this paper, the studies on the technological process and mechanism of a new CO_2-hardened alkaline resol phenol-aldehyde resin used with cold-core box in foundry has been developed to meet this demand. 本文的铸造用新型CO2硬化酚醛树脂冷芯盒材料和工艺及机理的研究就是为适应这一要求而研究开发的。
Influence of pH Value on Curing Rate of Phenol Formaldehyde Resol Resins pH值对酚醛甲阶树脂固化速率的影响
The influence of NH_4Cl on curing speed of resol resins and free formaldehyde content 氯化铵对酚醛甲阶树脂固化速率和游离甲醛含量的影响
The synthesis conditions of the resol with dibenzyl ether bond are discussed in the first section and it is characterized by FT-IR and gel-time test. 本章主要讨论了这种酚醛树脂的合成条件,并用FT-IR对其表征,还研究了它的凝胶时间随温度的变化。
A TG-MS Study of Resol-type Phenolic Resin Pyrolysis Resol型酚醛树脂热解特征的TG&MS研究
The Research of Resol Modified Polyurethane Rigid Foam 酚醛树脂改性聚氨酯硬质泡沫塑料的研究
Resol phenolic resin is one of important resin adhesives in foundry industry. 热固性酚醛树脂是树脂砂铸造生产中重要的树脂粘结剂之一。
Chelate reaction between borate ions and phenol hydroxyl group, ortho-position hydroxymethyl group of phenol-formaldehyde resol resin 硼酸根与甲阶酚醛树脂中酚羟基和邻位羟甲基的螯合反应
Synthesis of High-Ortho Cardanol Resol and Analysis of Its Thermal Action 高邻位槚如果酚醛树脂的合成及其热行为分析
The results indicate high-quality ordered mesoporous carbons can be synthesized in a wide tunable range of the concentration and the loading amount of resol, which is propitious to convenient manipulation. 结果表明高质量的有序介孔碳在很宽的酚醛树脂浓度和酚醛树脂负载量范围内都可以被合成出来,这非常有利于实际操作。
While, the carbon hollow-spheres using phenolic resol as carbon source ( p-CHS) have rough surface, nonuniform wall thickness and serious partical agglomeration. 以酚醛树脂为碳源合成的碳空心球p-CHS表面粗糙,壁厚不均匀,团聚现象严重。