酚醛树脂

The catalysts were made up of a kind of tertiary amine and a small amount of barium hydroxide.

通过理论分析和实验总结，研究了不同种类的碱性催化剂对酚醛树脂水溶性的影响，最后确定同时使用某种叔胺类化合物和少量氢氧化钡作为合成水溶性酚醛树脂的催化剂。

Phenol resin was modified by choosing cashew nut shell oil, polysulphone as modifier and adding other assistant.

以腰果壳油、聚砜为改性剂对酚醛树脂进行增强改性，将改性后的酚醛树脂通过湿缠绕方法和玻璃纤维粘合，制成了水润滑轴承外壳，并研究了玻璃纤维含量对水润滑轴承外壳压缩强度的影响。

Researches on Continuous Viscosity Determination in Polysulphone Production;2. Phenol resin was modified by choosing cashew nut shell oil, polysulphone as modifier and adding other assistant.

以腰果壳油、聚砜为改性剂对酚醛树脂进行增强改性，将改性后的酚醛树脂通过湿缠绕方法和玻璃纤维粘合，制成了水润滑轴承外壳，并研究了玻璃纤维含量对水润滑轴承外壳压缩强度的影响。

A series of structural parameters and component parameters of novolac resin were concluded through DEPT 135 spectrum of typical novolac resin with low or high mass fraction,including o-o,o-p and p-p condensation percentage of total condensation reaction;o-,p-percentage of active point in condensation reaction;reaction percentage of different active points;condensation ratioof phenolic resin in double ortho way and the average number of resin.

为准确了解线形酚醛树脂的组成和微细结构，利用高分辨率核磁共振技术中近年发展起来的DEPT135测定方法，测定了线形酚醛树脂的有关结构参数：o-o位缩聚百分率、o-p位缩聚百分率、p-p缩聚百分率；参与缩聚反应活性点中o位占据百分率、p占据百分率以及各个活性点参与反应百分率；同核双邻位缩聚值；不同类型酚醛树脂的平均核体数。

TG curve of cured PWF were same with that of cured PF during the range of 30 to 291℃.Both were thermal stable and had no weight loss before 200℃and they began to loss weightwith increasing temperature. The temperatures of thermal decomposability of cured PWF andPF were 291℃and 296℃, respectively.

8液化木基树脂和纯酚醛树脂的热重曲线在30～291℃完全相同，两者在200℃以前几乎没有发生失重现象，比较稳定，当温度超过200℃后，两者皆有轻微的失重，液化木基树脂的热降解温度约291℃，纯酚醛树脂的热降解温度约296℃。

The thermoset phenolic resin was synthesized by all the waste water from the former process, paraformaldehyde and phenol.

以上述热塑性酚醛树脂生产中排放的全部废水、多聚甲醛、苯酚为原料可以合成多种用途的热固性酚醛树脂。

Were used to enhance the toughness of phenolic resin, Carbon nanotube, nanosoil, bismaleimide, boron, tar, organic silicon, benzotriazine, phenolic-triazine resin were used to heighten the heat resistance of phenolic resin.

为提高酚醛树脂的性能，扩大其适用范嗣，国内外酚醛树脂行业及塑料行业对酚醛树脂改性开展了大量的研究T作，提高其韧性和耐热性是酚醛树脂的发展方向。

In application of modified phenol-formaldehyde resin in OCC pulp, firstly the application effictiveness of phenol-formaldehyde resin modified by triethylamine and diethylene triamine in OCC pulp was researched, and the optimum application effictiveness was gotten through mon- factor trial.

通过对改性酚醛树脂在OCC废纸浆中的应用研究，考察了二乙烯三胺和三乙胺改性酚醛树脂在OCC废纸浆中的应用效果，并通过单因素实验得到了改性酚醛树脂的最佳应用效果。

Considering the strength enhancing efficiency of phenol-formaldehyde resin modified by triethylamine and diethylene triamine in OCC pulp, the efficiency of phenol-formaldehyde resin modified by diethylene triamine was better than triethylamine.

综合考察二乙烯三胺和三乙胺改性的酚醛树脂的增强作用，二乙烯三胺作为改性剂时改性的酚醛树脂要优于三乙胺改性的酚醛树脂。

The temperature behavior in mats was measured using CopperConstantan Thermocouples, and the core temperature cure during both pressings was simulated by means of a computer under various conditions.Reflected-fluorescence microscopy and image analysis techniques were used to measure the flow and penetration of PF adhesive into the Polar flake under various steam-injection-vacuum-pressing conditions. The paper also studied the effects of adhesive and penetration on flakeboards'mechanical properties.

研究结果表明：采用聚合度较大的水溶性A阶酚醛树脂胶，可以比较有效地克服目前水溶性酚醛树脂胶喷蒸热压大片刨花板中的树脂胶过度稀释、渗透及胶线缺胶的问题；适当选择饱和蒸汽压力、喷蒸时机、喷蒸时间、蒸汽保持时间和抽真空处理程度，是解决目前水溶性A阶酚醛树脂胶在喷蒸热压中所存在的问题的另一个重要途径。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。