Preparation method of carbamide resin phase change microcapsule

Abstract

The invention discloses a preparation method of a carbamide resin phase change microcapsule, and belongs to the field of preparation of textile materials. The method is characterized by comprising thefollowing steps: dissolving n-octadecane and TDI in a cyclohexane solvent, so as to form a uniformly mixed oil phase system; weighing an emulgator and OP-10, feeding the emulgator and OP-10 into a flask containing distilled water, and stirring, so as to form a uniformly mixed aqueous phase system; pouring the oil phase into an aqueous phase flask, and stirring with a homogenizer, so as to form uniform O/W emulsion; transferring the emulsion into a three-mouth flask, and reducing the rotate speed; uniformly mixing DETA and distilled water, dropwise adding the DETA and distilled water into theemulsion at a constant speed, and slowly performing temperature reaction after dropwise adding is accomplished, so as to obtain microcapsule suspension; performing suction filtration on an obtained product, washing the obtained product through distilled water and alcohol, performing suction filtration, and finally drying an obtained filter cake in a vacuum drying oven, so as to obtain a n-octadecane/carbamide resin phase change microcapsule. The carbamide resin/n-octadecane phase change microcapsule has the advantages that the enthalpy value of the microcapsule is 95.81 J/g, the packaging efficiency is 92.13 percent, and the thermal stability of the microcapsule taking carbamide resin as a wall material is excellent.

Description

technical field [0001] The invention belongs to the field of textile material preparation, and in particular relates to a preparation method of polyurea resin phase-change microcapsules. Background technique [0002] With the rapid development of the global industry, the energy problem is becoming more and more prominent. The crisis of the near-exhaustion of mineral energy and environmental pollution have attracted more and more attention. How to improve the utilization rate of energy and develop and utilize renewable energy has become a challenge for mankind. important tasks and challenges. Especially with the outbreak of the two oil crises, energy and energy utilization have become an issue of keen concern to all mankind. The energy situation in the world today is very severe: on the one hand, the crisis caused by the depletion of traditional energy sources, the existing proven reserves of coal, oil, and natural gas in the world are only enough for human use for hundreds ...

AI Technical Summary

Problems solved by technology

Moreover, the improper exploitation and use of energy has caused serious health and environment...