Phase-change energy storage dual-limit temperature-regulating mortar and preparation method thereof

Abstract

The invention discloses phase-change energy-storage dual-limit temperature adjustment mortar and a preparation method thereof. The phase-change energy-storage dual-limit temperature adjustment mortar comprises the following raw materials in parts by weight: 25 parts of cement, 20-55 parts of medium sand, 10-30 parts of phase-change microcapsules, 10-40 parts of expanded perlite shape-stabilized phase-change particles, 0.25-1 part of fibers, 0.2-0.5 parts of cellulose ether, 1.5-3 parts of redispersible latex powder and 25-30 parts of water, wherein the phase-change temperature of the phase-change microcapsules is 18-20 DEG C and the phase-change temperature of the expanded perlite shape-stabilized phase-change particles is 26-28 DEG C. The phase-change energy-storage dual-limit temperature adjustment mortar prepared by the method has a dual-limit temperature adjustment function, not only can remarkably adjust a room temperature to be within upper and lower limit ranges of a comfortable temperature of a human body and improve thermal comfort of a human settlement environment but also improves energy-storage and temperature-adjustment capabilities of a phase-change mortar product and overcomes performance deficiencies existent during addition of a single phase-change medium through compound addition of two phase-change mediums, that is to say, the phase-change microcapsules and the expanded perlite shape-stabilized phase-change particles.

Description

technical field

[0001] The invention belongs to the field of building materials, and in particular relates to a phase-change energy storage dual-limit temperature-regulating mortar and a preparation method thereof. Background technique

[0002] In modern buildings, especially high-rise buildings, lightweight envelope structures have been used more and more widely, mainly because lightweight envelope structures can not only greatly reduce the self-load of building structures, but also have good thermal resistance. , can improve the thermal insulation effect of the building envelope. However, due to the small heat capacity and poor heat storage capacity of the lightweight enclosure structure, it cannot absorb and store a large amount of solar radiant heat during the day, causing the indoor temperature to be too high during the day and too low at night, with large diurnal fluctuations and poor thermal comfort. This results in an increase in air conditioning and heating energy ...