而小范围的改变异氰酸酯指数，对它们的影响较小。
However the influence is relatively little when the ratio of NCO:OH is changed in a small range.
结果表明，异氰酸酯指数和改性木素含量对聚氨酸性能有影响。
It showed that isocyanate index (the ratio of NCO to OH) and lignin content influenced the properties of synthesized polyurethane.
考察了多元醇种类及配比、异氰酸酯指数等因素对材料性能的影响。
Influence of type and ratio of polyol, and NCO index on the properties of the adhesives were discussed.
讨沦了水发泡剂、交联剂、异氰酸酯指数、阻燃剂等对泡沫阻燃性的影响。
The effects of water blowing agent, cross-linking agent, Isocyanate index and flame retardants on flame-retardant of the HR foam were discussed.
研究了异氰酸酯指数以及纤维素接枝丙烯酸类吸水剂的加入时间及用量等因素对材料性能的影响。
The influence of isocyanate indexes and the time of adding cellulose-acrylic acid graft water absorbent to resin properties were studied.
还探讨了温度、固含量、异氰酸酯指数、水的量等因素对反应体系的影响，并指出了合成过程中，以上因素的合理用量。
Temperature, solid contents, index of NCO, quantity of water were discussed for demonstrating their effort on reaction and Proper amount of those factors were pointed out, too.
还探讨了温度、固含量、异氰酸酯指数、水的量等因素对反应体系的影响，并指出了合成过程中，以上因素的合理用量。
Temperature, solid contents, index of NCO, quantity of water were discussed for demonstrating their effort on reaction and Proper amount of those factors were pointed out, too.
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