偶联剂处理使高硅氧纤维与树脂基体的粘结强度增加，从而提高复合材料的弯曲强度。
After high silica fiber is treated by coupling agent, excellent interfacial cohesion and flexural strength of super-hybrid composite are obtained.
为减少砂芯在湿度较大环境中存放时的强度下降，可在混砂时加入抗湿剂或增加粘结剂中聚异氰酸酯的比例。
The decrease in strength of sand cores can be reduced by adding an anti-moisture agent or increasing proportion of polyisocyanate in the mixture when the cores is stored up …
随着粘结剂用量增加，显气孔率下降，而抗弯强度提高；
The porosity increases and the flexural strength decrease6s with higher content of pore former.
随着粘结剂用量增加，显气孔率下降，而抗弯强度提高；
The porosity increases and the flexural strength decrease6s with higher content of pore former.
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