摘要:
Provided are a latent heat storage material that functions as a high-capacity heat storage material at a medium-to-low temperature region using a latent heat storage material composition including at least one kind of n-paraffin having 14 to 18 carbon atoms in a total amount of 100 parts by mass (hereinafter referred to as "n-paraffin-based latent heat storage material composition") that contains, as a supercooling preventing agent, an n-alkyl alcohol and/or an n-alkyl amine having 20 to 24 carbon atoms (hereinafter referred to as "n-paraffin derivative"), and is obtained by the following a) step and b) step, a microcapsule heat storage material containing the latent heat storage material as a core material, and a method for producing the same. a) A step of melting and homogenizing the n-paraffin derivative and the n-paraffin-based latent heat storage material composition at a temperature range of 50 to 100°C. b) A step of cooling the homogeneous solution obtained in the step to precipitate the n-paraffin derivative in the n-paraffin-based latent heat storage material.
摘要:
A microcapsule having a functional organic compound as a core material and a cross-linked or non-cross-linked polymer as a shell material achieves stabilization and efficiency of expression of function of the core material. Provided is a method for producing a microcapsule that is obtained by a polymerization reaction of at least one species of vinyl monomer using an O/W dispersion containing an organic compound having no vinyl group and the vinyl monomer as raw material, and has a core-shell structure in which a core is the organic compound having no vinyl group and a shell is a polymer of the vinyl monomer compound, including the step of emulsifying the O/W dispersion by continuously and successively passing the O/W dispersion through a plurality of net bodies that are provided along a flow path and disposed at certain intervals before the polymerization reaction
摘要:
In a microcapsule having a latent heat storage material having no vinyl group as a core material and a cross-linked polymer as a shell material, functions of the latent heat storage material is stably and efficiently expressed. In a method of producing a microcapsule that is obtained by a polymerization reaction of at least two types of vinyl monomers using an O/W dispersion containing a latent heat storage substance having no vinyl group and the vinyl monomers as raw material, and has a core-shell structure in which a core is the latent heat storage substance having no vinyl group and a shell is a copolymer of at least two components of the vinyl monomers, the vinyl monomers contain a vinyl monomer having an electron withdrawing group and a vinyl monomer having an electron donating group and the method includes a step of continuously and successively passing the O/W dispersion through a plurality of net bodies that are provided along a flow path and disposed at certain intervals before the polymerization reaction, resulting in emulsification. The object is achieved by using the method of producing a microcapsule.