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epoxy-novolac
相关语句
  酚醛型环氧树脂
    Study on epoxy-novolac modified by bismaleimide
    双马来酰亚胺改性酚醛型环氧树脂的研究
短句来源
    In order to meet the needs,Epoxy-novolac resin was modified with N,N'-bismaleimido-4,4'-diphenyl methane(BMI).
    用二苯甲烷型双马来酰亚胺(BMI)对酚醛型环氧树脂(F-51)进行改性,合成了耐高温新型环氧胶粘剂。
短句来源
  酚醛型环氧树脂
    Study on epoxy-novolac modified by bismaleimide
    双马来酰亚胺改性酚醛型环氧树脂的研究
短句来源
    In order to meet the needs,Epoxy-novolac resin was modified with N,N'-bismaleimido-4,4'-diphenyl methane(BMI).
    用二苯甲烷型双马来酰亚胺(BMI)对酚醛型环氧树脂(F-51)进行改性,合成了耐高温新型环氧胶粘剂。
短句来源
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  epoxy-novolac
It has been established that changing the elasticity of rigid crosslinked epoxy-novolac block copolymers changes the friction mechanism and wear characteristics.
      
Wear resistance of cured epoxy-novolac compositions
      
The isothermal cure of an epoxy-novolac molding compound was studied by means of Fourier-transform infrared spectroscopy (FTIR) and dielectrometry (DE).
      
Cure monitoring via different techniques: Isothermal cure of an epoxy-novolac molding compound
      


Polyetherimide (PEI) was used to improve the brittleness of bisphenol A dicyanate- epoxy novolac resin blends. Inclusion of 15% PEI led to a 115% (mass fraction) increase of the fracture toughness (KIC) and slight increase in flexural strength with retention in flexural modulus compared to those of the unmodified cured blends. The microstrucures of the modified resins were examined by scanning electron microscopy and dynamic viscoelastic analysis. It was observed that the dichloromethane absorption of the...

Polyetherimide (PEI) was used to improve the brittleness of bisphenol A dicyanate- epoxy novolac resin blends. Inclusion of 15% PEI led to a 115% (mass fraction) increase of the fracture toughness (KIC) and slight increase in flexural strength with retention in flexural modulus compared to those of the unmodified cured blends. The microstrucures of the modified resins were examined by scanning electron microscopy and dynamic viscoelastic analysis. It was observed that the dichloromethane absorption of the modified resin with co-continuous phases structure increased significantly compared to the unmodified cured blends. The toughening improvement and the solvent resistance properties were correlated to the morphology of the modified blends. The cure schedules had no practical influence on the fracture toughness and morphologies of the blend incorporating 10% PEI modifier.

采用聚醚酰亚胺以提高双酚A二氰酸酯/酚醛环氧树脂共混物的断裂韧性.实验结果表明,聚醚酰亚胺是氰酸酯/酚醛环氧树脂共混物的有效增韧剂,加入15%的聚醚酰亚胺可使断裂韧性(KIC)提高到145MPa·m0.5,弯曲强度也有所提高.用扫描电子显微镜和动态粘弹谱研究了改性共混物的微观结构,具有双连续结构的共混物的耐溶剂性能大大下降,共混物的韧性和耐溶剂性主要与相行为有关, 固化工艺对含10%聚醚酰亚胺的共混物的断裂韧性和形态没有明显的作用.

The adhesive that had the property of high temperature resistance,good mechanical properties was needed for high temperature resistance antiradar coatings.In order to meet the needs,Epoxy-novolac resin was modified with N,N'-bismaleimido-4,4'-diphenyl methane(BMI).The result of the experiment showed that the optimal synthesis was180℃ for 2 h;When BMI concentration was higher,the adhesive force and the degradation temperature were increased,thermal stability was enhanced,whereas the shear strength decreased...

The adhesive that had the property of high temperature resistance,good mechanical properties was needed for high temperature resistance antiradar coatings.In order to meet the needs,Epoxy-novolac resin was modified with N,N'-bismaleimido-4,4'-diphenyl methane(BMI).The result of the experiment showed that the optimal synthesis was180℃ for 2 h;When BMI concentration was higher,the adhesive force and the degradation temperature were increased,thermal stability was enhanced,whereas the shear strength decreased with increasing BMI concentration.IR and TG analysis were used to study the curing process of the adhesive.

试图合成一种具有良好力学性能的耐高温胶粘剂,以满足耐高温吸波涂层的需要。用二苯甲烷型双马来酰亚胺(BMI)对酚醛型环氧树脂(F-51)进行改性,合成了耐高温新型环氧胶粘剂。实验结果表明:最佳的固化工艺是在180℃下固化2h;胶粘剂中BMI含量越高,其附着力越大,热分解温度越高,耐热性越好,但剪切强度较差。借助于红外光谱分析、热分析等现代测试手段探讨了环氧胶粘剂固化反应机理。

 

 


 
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