Question 1: It contains encapsulated substances, which passively cool buildings by absorbing heat. (2 points)

Question 1: Stir the melted wax quickly with hot water. Because wax and water repel each other, wax will form many tiny wax drops in water. And is wrapped by an acrylic acid precursor added to the wax-water mixture. The wet mixture thus obtained can be added to powder used for manufacturing gypsum board, or dried and added to other building materials such as cement and gypsum. (4 points)

Question 1:① Each polymer capsule contains solid paraffin, which will melt at room temperature. (2 points)

② Research and development of capsules. (2 points)

Problem 1: absorbs heat during the day and releases heat at night, thus reducing the use of air conditioners; It helps to promote the "green" trend in the construction industry-using green building materials that can maintain comfortable indoor temperature without using electricity. (4 points)

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