制备方法: 氯甲酸甲酯与尿素缩合成脲基甲酸甲酯,经水合肼环合成尿唑肼,最后以丙酮脱肼成尿唑,经重结晶而得成品。
合成制备方法: 氯甲酸甲酯与尿素缩合成脲基甲酸甲酯,经水合肼环合成尿唑肼,最后以丙酮脱肼成尿唑,经重结晶而得成品。
Magnetic resonance imaging (MRI) and a pilot-scale laboratory through-air dryer are used to study through-air drying of unbacked tufted nylon carpets. MRI is used to study the effect of the vacuum extraction procedure on local moisture distribution within the carpet and to measure local moisture profiles during through-air drying where airflow rate is held constant. The effects of several process and carpet construction parameters on drying are discussed.