【摘要】 以天然纤维如牛皮、纸浆、木质纤维等和异氰酸酯为主要原料,在催化剂作用下,热压反应成型聚氰酯板。设计了异氰酸酯用量、催化剂用量及温度三因素三水平正交试验,考察了诸因素对聚氨酯板性能的影响,获得了最佳试验条件,并通过IR谱的分析确证了反应产物的形成。更多还原

【Abstract】 With natural fibres such as wood fibre and isocyanate as main materials, Polyurethane sheet has been prepared under a catalyst present and hot-press. The e.xperement was arranged orthoganal test of temperature, content of isocyate (PAPl)and catalyst, examined the influence of these factors and between each other on the sheet perfomances.so obtained best processing conditions. And the formation of the reaction product was verified by 1R spectrometry.更多还原