Then the product have been characterized in purity, viscosity and char yield with IR, TGA.

采用红外光谱仪、热重分析仪 、 流变仪等分析了酚醛型氰酸酯树脂的纯度 、 残碳率及粘度特性.

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Char yield of these resins was studied using TG and electro paramagnetic resonance EPR.

用热重、电子顺磁共振等方法研究了改性酚醛树脂的残碳率.

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