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- The results show that coal tar pitch and terephthalic aldehyde can be used to synthesize COPNA resin. 结果表明,煤沥青能够与对苯二甲醛合成COPNA树脂,其反应机理为酸催化下的阳离子型缩聚反应;
- Furthermore, differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) are employed to study curing reaction and thermo-stability of COPNA resin. 采用差示扫描量热法 (DSC)和热解重量分析法 (TGA)研究 COPNA树脂固化反应及热稳定性。
- Mesophase microbead was used to analyze the growth of COPNA resin with SEM during reaction, and the thermostability of COPNA resin was analyzed with TGA. 采用扫描电镜(SEM)对反应过程中生成的中间相小球的尺寸变化分析COPNA树脂的生成情况;采用热重(TGA)研究COPNA树脂的热稳定性。
- The properties and carbonizing yield of several kinds of matrix precursors, such as bitumen, phenolic resin, COPNA resin, furan resin, polyarylacetylene are also mentioned. 讨论了不同物质,其中包括工业沥青、酚醛树脂、呋喃树脂、缩合多核芳香(COPNA)树脂以及聚芳基乙炔树脂作为碳/碳复合材料基体前驱体的特点。
- The results show that coal tar pitch and PMB can be used to synthesize COPNA resin, the reaction mechanism of which is a positive ion-typed condensation polymerization catalyzed by acid. 研究表明煤沥青能与PMB合成COPNA树脂,其反应机理为酸催化下的阳离子型缩聚反应;
- Results showed that the mechanical properties of the composites from COPNA resins fr. 以四种不同的油浆为原料,在酸性催化剂存在下,与对苯二甲醇反应,得到四种COPNA树脂。
- Keywords triarylmethane;COPNA resin;stable freeradicals;ferromagnetic; 三芳基甲烷;COPNA树脂;稳定自由基;铁磁性;
- Keywords coal tar pitch;divinylbenzene;COPNA resin;reaction mechanism;mesophase microbead;thermostability; 煤沥青;二乙烯基苯;COPNA树脂;反应机理;中间相小球;热稳定性;
- The basin is made of synthetic resin. 这个盆是用合成树脂做的。
- They are made of a common plastic resin. 它们是用一种普通的塑胶合成树脂做成的。
- This shelf was made of synthetic resin. 这个架子是合成树脂做的。
- A paint containing acrylic resin. 丙烯酸树脂漆含丙烯酸树脂的涂料
- Amber is the resin of pine trees that grew very very long ago. 琥珀是古老的松脂。
- COPNA resin 沥青树脂
- Excess resin is suspended in the crude homogenate. 过量的树脂悬浮于粗匀浆中。
- Opacity is due to crazes in the resin. 不透明是因树脂中产生裂纹。
- The sodium is removed with cation exchange resin. 钠用阳离子交换树脂来分离。
- How does the supplier control resin content? 如何控制树脂砂含量?
- The modified resin hasgreat application foreground. 这些改性树脂具有较好的应用前景。
- Diethylenetriamine will swell the resin. 二乙烯三胺将使树脂膨胀。