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日本松下技研公司最近研制出蓄热量约为40千卡/克的新型蓄热材料,该材料适合用作温室暖房装置的潜热、蓄热材料。该公司利用控制熔点技术的原理,在10水硫酸钠(Na_2SO_4·10H_2O,熔点为32℃)内加入尿素[CO(NH_2)_2],使其熔点控制在18—22℃之内,以适合用作温室的蓄热材料。并且研究出利用凝胶化延长使用寿命的技术。
Japan’s Matsushita Institute of Technology recently developed a heat storage capacity of about 40 kcal / g of new thermal storage materials, the material is suitable for greenhouse heating equipment, latent heat, thermal storage materials. The company uses the principle of melting point control technology, the addition of urea [CO (NH_2) _2] in 10% sodium sulfate (Na_2SO_4 · 10H_2O, melting point of 32 ° C) to control the melting point within 18-22 ℃, suitable for For the greenhouse heat storage material. And developed the use of gelation to extend the service life of the technology.