Preparation, Encapsulation, and Performance Evaluation of Ternary Phase Change Materials for Building Envelope

Table 1

Changes of mass and loss rate of phase change expanded perlite under different encapsulation methods.

Cycle number		0	10	20	30	40	50
Packaging materials
Unencapsulate	Mass/g	20.00	19.73	19.37	19.12	18.98	18.98
	Loss rate/%	0	1.4	3.2	4.4	5.1	5.1
Styrene-acrylic emulsion	Mass/g	39.52	39.34	39.2.4	39.16	39.16	39.16
	Loss rate/%	0	0.9	1.7	1.8	1.8	1.8
Cement powder	Mass/g	39.27	39.05	38.95	38.87	38.85	38.85
	Loss rate/%	0	1.1	1.6	2.0	2.1	2.1
Styrene-acrylic emulsion and cement powder	Mass/g	49.61	49.52	49.49	49.48	49.48	49.48
	Loss rate/%	0	0.44	0.60	0.65	0.65	0.65