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氢氧化钾的耐火粘合剂的制备方法

发布来源:http://www.jinhao360.com    更新时间:2019-12-04 点击数:

  氢氧化钾由于具有强碱性和腐蚀性,所以在化工等一些行业有着非常重要的应用,也可以作为许多不同领域的试剂,如干燥剂、吸附剂、耐火胶粘剂等。那么,让我们来看看耐火粘结剂的制备。

  Because of its strong alkalinity and corrosiveness, potassium hydroxide has a very important application in chemical industry and other industries. It can also be used as a reagent in many different fields, such as desiccant, adsorbent, fire-resistant adhesive, etc. So, let's look at the preparation of refractory binder.
  1. 难熔胶的制备方法
  1. Preparation method of refractory adhesive
  耐火材料制备方法:在反应池中加入8kg颗粒状氢氧化钾、7kg粉状碳酸钠(苏打灰)(旭硝子公司生产)和30kg金属硅化物,再加入60l水。其中自然反应开始了,从产物的底部开始剧烈反应,在反应池中从底部一侧向上部一侧发生对流。反应温度自然升高。当反应温度在80~90℃范围内时,反应处于活性状态。反应温度不得超过92℃。反应在10h左右完成,分离固体得到约48l(约70kg)的难熔液体。其余固体为金属硅化物块。如果用水清洗,大约有22kg的金属硅化物块残留。在剩余的金属硅化块中,加入约8kg的金属硅化块,共30kg的金属硅化块供二次反应使用。与一级反应一样,在反应池中加入8kg的颗粒状碳酸钠(苏打灰)(旭硝子公司),7kg的粉状碳酸钠(旭硝子公司),然后在一级反应中加入22kg的剩余金属硅化物块和8kg的新金属硅化物块。在制备过程中,先加入颗粒状的氢氧化钾,再加入粉末状的碳酸钠(纯碱),再加入金属硅化块,再按进料顺序加水。反应从较低的产物开始,可形成上下相反流动的活性反应,制备出性能良好的防火液。
  Preparation method of refractories: add 8kg of granular potassium hydroxide, 7kg of powdered sodium carbonate (soda ash) (produced by xUnit subsidiary company) and 30kg of metal silicide into the reaction tank, and then add 60L of water. The natural reaction starts, the violent reaction starts from the bottom of the product, and convection occurs from the bottom side to the upper side in the reaction tank. The reaction temperature rises naturally. When the reaction temperature is in the range of 80 ~ 90 ℃, the reaction is in an active state. The reaction temperature shall not exceed 92 ℃. The reaction was completed in about 10 hours, and about 48l (about 70kg) of refractory liquid was obtained by separating the solid. The other solids are metal silicides. If washed with water, about 22 kg of metal silicide remains. In the remaining metal silicides, add about 8kg of metal silicides, a total of 30kg of metal silicides for secondary reaction. As in the first stage reaction, add 8kg of granular sodium carbonate (soda ash) (subsidiary of Asahi), 7kg of powdered sodium carbonate (subsidiary of Asahi), and then add 22kg of residual metal silicides and 8kg of new metal silicides in the first stage reaction. In the preparation process, first add granular potassium hydroxide, then add powdered sodium carbonate (soda ash), then add metal silicide block, and then add water according to the feeding sequence. Starting from the lower product, the reaction can form an active reaction with opposite flow from top to bottom, and a fire resistant liquid with good performance can be prepared.
氢氧化钾的耐火粘合剂的制备方法
  (2)制备氢氧化钾耐火胶:将耐火液、剪碎的旧报纸(其他旧纸也可以)、稻壳、棉花加入反应槽中,充分搅拌均匀,制成耐火材料。
  (2) preparation of potassium hydroxide fire-resistant adhesive: add the fire-resistant liquid, old newspaper (other old paper can also be used), rice husk and cotton into the reaction tank, mix them well and make them into fire-resistant materials.
  2、本防火胶的性能如果使用耐火涂层木材,涂层木材将在接近1000~c火焰处放置30分钟不会燃烧。将耐火胶料加压脱水至45%含水率,可在180℃加压1h制得轻质耐火材料。该耐火材料在接近1500℃的火焰中观察了30分钟。10min后,对耐火材料表面进行陶瓷化处理。燃烧30min后,将耐火材料切开。此外,耐火材料的隔音耐冲击性也很好。它可以切割,锯,钉,螺丝等木材的加工性能相似。
  2. If the fire-resistant coating wood is used for the performance of the fire-resistant adhesive, the coated wood will not burn for 30 minutes at the place close to 1000 ~ C flame. The lightweight refractories can be made by pressing and dehydrating the refractories to 45% moisture content and pressing at 180 ℃ for 1H. The refractories were observed for 30 minutes in a flame close to 1500 ℃. After 10 minutes, the surface of refractory was treated with ceramic. After burning for 30min, cut the refractory. In addition, the sound insulation and impact resistance of refractories are also very good. It can cut, saw, nail, screw and other wood with similar processing performance.
  以上是氢氧化钾的防火胶的制备方法和相关的知识介绍,这种防火胶可以取代传统的厚板,聚苯乙烯泡沫塑料和其它板材,用于准备冷定性框架,电视机情况下,包装材料和桌椅和厨房用具,影响非常大。
  The above is the preparation of potassium hydroxide fire retardant and related knowledge introduction. This kind of fireproof adhesive can replace traditional thick plate, polystyrene foam plastics and other plates, and is used to prepare the cold qualitative framework. Under the condition of TV sets, the packaging materials and tables and chairs and kitchen utensils are very influential.

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