The invention relates to a preparation method of modified shell powder. The shell is cleaned with clean water and dried in reserve; a high speed shredder or a ball mill is used to crush the coarse shellfish powder of 0.1 1mm; the shell coarse powder is placed in a high temperature resistance furnace for calcining and puffing, and calcined with three stages of gradient calcination, and the specific calcining operation is taken as a specific calcining operation. (a) it was calcined at 400 degrees centigrade at 30, and (b) heating up to 800 degrees at the temperature of 8 and 12 C /min, and calcined 30 of 60min at the temperature, and (c) heating up to 1200 at 5 8 degrees C, and calcined 30 of 60min at this temperature, and then cooled to room temperature after sintering, and the calcined puffing was coarse. The nano shell powder was obtained by nano crushing treatment with nano pulverizer. The various components of the invention have synergistic effect, which makes the coating with good wear resistance, strong adhesion, anti aging, acid and alkali resistance, and has the function of formaldehyde removal, green environmental protection, harmless to the human body, and has a broad market prospect.
【技术实现步骤摘要】
一种改性贝壳粉的制备方法本申请是申请号为201610209420.X,申请日:2016年04月06日,专利技术名称为“一种含有贝壳粉的环保外墙涂料”的专利技术专利的分案申请。
本专利技术涉及日用化学品涂装领域,涉及一种外墙涂料,具体而言涉及一种含有贝壳粉的环保外墙涂料。
技术介绍
当前,我国建筑物外墙装饰多数还使用花岗岩、马赛克、面砖、铝合金玻璃等传统建材,这些材料不仅造价高,且有坠落伤人的隐患,也不便于维护翻新。据报道,西欧各大城市的建筑外墙几乎是用涂料装饰。日本等国家用涂料装饰的建筑外墙的比例已高达70%~90%,在新加坡、马来西亚等国家建筑法规定了高层建筑不准许使用面砖等材料进行装饰。今后,我国建筑外墙装饰势必走用涂料替代面砖和马赛克材料之路。目前,我国外墙乳胶漆中已开发和投入使用的有以下几种:1、纯丙烯酸乳胶漆;2、硅丙乳胶漆,其耐侯性优于纯丙烯酸乳胶漆;3、水性氟碳涂料,它的耐侯性很好,但价格高;4、溶剂型外墙涂料,耐侯性好,但大多数不环保。贝壳粉是将人工养殖和天然的贝壳通过高温煅烧、粉碎后制成。其组成成分为碳酸钙、氧化钙、氢氧化钙等钙化物,本身为多孔状,具有吸附、分解(甲醛、苯、TVOC、氨气)的作用及调节空气湿度、消除异味功能。天然焙烧贝壳粉,古时称为“蜊灰”,在水泥出现前,被广泛应用于土建,如将蜊灰与糯米浆混合,制成粘接料,用于城墙和住宅墙壁石块间的粘结。经千百年风吹日晒,即使用于石块已经风化,固化的蜊灰粘接料,仍凸显在石块之间,不受侵蚀。专利文献(公开号:CN101774785A)公开了一种以贝壳粉为主要成份的内墙涂料,它以贝壳碳酸钙和氧 ...
【技术保护点】
1.一种改性贝壳粉的制备方法,其特征在于,其制备方法包括如下步骤:(1)将贝壳用清水洗净,干燥备用;采用高速粉碎机或者球磨机粉碎至0.1‑1mm的贝壳粗微粉;(2)将贝壳粗微粉置于高温电阻炉中进行煅烧膨化处理,煅烧采用三段式梯度煅烧,具体煅烧操作为:(a)在400℃下进行煅烧30‑60min;(b)以8‑12℃/min的升温速率升温到800℃,并在该温度下保温煅烧30‑60min;(c)以5‑8℃/min的升温速率升温到1200℃,并在该温度下保温煅烧30‑60min,煅烧结束后,自然冷却至室温;(3)将煅烧膨化后粗微粉利用纳米粉碎机进行纳米粉碎处理,得到改性纳米贝壳粉。
【技术特征摘要】
1.一种改性贝壳粉的制备方法,其特征在于,其制备方法包括如下步骤:(1)将贝壳用清水洗净,干燥备用;采用高速粉碎机或者球磨机粉碎至0.1-1mm的贝壳粗微粉;(2)将贝壳粗微粉置于高温电阻炉中进行煅烧膨化处理,煅烧采用三段式梯度煅烧,具体煅烧操作为:(a)在400℃下进行煅烧30-60min;(b)以8-12℃/min的升温速率升温到800℃,...
【专利技术属性】
技术研发人员:不公告发明人,
申请(专利权)人:安溪县智睿电子商务有限公司,
类型:发明
国别省市:福建,35
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