自从有机合成高分子材料广泛使用后,人类即开始面临新的火灾威胁,原因是这类材料绝大部分是易燃或可燃的。当前,全球火灾形势仍很严峻。我国近年也火灾频繁、损失惨重。据粗略估计,目前工业发达国家的火灾直接经济损失约为GDP的0.1%～0.2%,间接经济损失有时可达GDP的1%。阻燃剂的使用是防止和减少火灾的战略性措施之一。下面介绍氢氧化铝的阻燃作用,让学生们多方位更深切地感受化学就在我们生活中以及培养他们的安全意识及社会责任感,同时也为学生们学习物质的用途打开一扇新的窗口。 Since the widespread use of organic synthetic polymer materials, humans are beginning to face new fire threats because most of these materials are flammable or flammable. At present, the global fire situation is still very serious. In recent years, our country has also had frequent fires and suffered heavy losses. According to a rough estimate, the current direct economic loss of fire in industrialized countries is about 0.1% to 0.2% of GDP and indirect economic losses can sometimes reach 1% of GDP. The use of flame retardants is one of the strategic measures to prevent and reduce fires. The following is an introduction of the flame retardant effect of aluminum hydroxide, which enables students to feel more deeply and deeply their awareness of safety and social responsibility in our lives. It also opens up a new window for students to study the uses of materials. .