The present invention relates to a shape memory fiber and its preparation method, the shape memory fibers are made from a shape memory polyurethane, said polyurethane formed by the reversible phase component (A) to form a fixed phase component (B) prepared by . The shape memory fiber preparation met.....
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The utility model relates to an electronic device for detecting atherosclerosis. The device includes an ECG sensor for collecting ECG signals, an ECG amplifier connected with the ECG sensor for amplifying the ECG signals collected by the ECG amplifier, a voltage comparator connected with the ECG amp.....
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本发明涉及一种具有封端或不饱和键结构的水性聚氨酯的生产过程和对织物防皱、保型的整理方法，其作为织物整理剂的应用是一种新的应用。采用预聚物聚合及封端技术，制得具有反应型端基的稳定的水性聚氨酯，其乳胶粒径分布在５０－５００ｎｍ可调控。具有粘接强度高、抗冲性能优良、耐水解性好以及形状记忆的功能。稀释后作为织物整理，能使织物获得防皱以及折痕保留等功能，同时保留良好的柔软性、手感度和较佳的白度，具有极佳的耐水洗性，无明显的强力损失。使用形状记忆水性聚氨酯整理剂，还可以使织物在热水或热空气中能恢复日常穿着或洗涤中产生的折皱，具有明显的形状记忆功能。
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一种检测调校光电控制器的可变照明装置包括：在箱体光室中一端的光度可调的白炽灯泡。在光室中靠近灯泡的、使灯泡发出的光多次反射的光障。在光室中另一端的让该多次反射后的光线射出光学室的透明窗口。在光室中窗口附近的具有窗口相同光度的测光表。在光室外的围绕该窗口的遮光圈。与测光表连接的在箱体电器室中可由外部读数的显示器。在电器室中向灯泡供电的电池组。在电器室中可由外部调节的控制该电池组供电电流大小的变流器。在电器室中的可由外部调节测光表的调节器。本实用新型装置结构简单，造价低廉，体积小巧，可用于不同尺寸的光电控制器感光窗，使得街灯用的光电控制器在任何强度的环境光下都能检测调校。
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The present invention relates to a preparation of shape memory polyurethane shape memory fiber and its preparation method, the shape memory polyurethane is a hydroxyl group-containing organic polymer material, a chain extender, a diisocyanate, blocking agent, the molar ratio of 1: 1-3:2.4-4.8:0.8-1......
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