At the same time, the influence factors on microphase separation of waterborne polyurethane were studied by FTIR and DSC, including soft segment type, DMPA and chain-extender contents, different NCO/OH ratio.

• 同时通过红外光谱(FTIR)、示差扫描量热法(DSC)等手段考察了软段组成、二羟甲基丙酸(DMPA)含量及不同NCO/OH比值和扩链剂用量对产物微相分离的影响。