Potassium hydroxide has important applications in chemical industry because of its strong alkalinity and corrosiveness. It can be widely used in drying agent, adsorbent, refractory adhesives and other fields. So let's take a look at the preparation of its refractory adhesives.

　　(1)原料及配方

　　(1) Raw materials and formulations

　　(1)耐火配方材料比/kg材料比/kg氢氧化钾8金属硅化物30粉末碳酸钠7水60。

　　(1) refractory formula material ratio / kg material ratio / kg potassium hydroxide 8 metal silicide 30 powder sodium carbonate 7 water 60.

　　无机耐火胶配方料比/质量料比/质量耐火溶液10稻壳5旧报纸80棉5。

　　Inorganic refractory formula ratio/mass ratio/mass refractory solution 10 rice husk 5 old newspaper 80 cotton 5.

　　(2)氢氧化钾耐火胶粘剂的制备方法

　　(2) Preparation of Potassium Hydroxide Refractory Adhesive

　　(1)难熔溶液的制备方法:反应釜中依次加入8kg颗粒氢氧化钾、7kg粉状碳酸钠(纯碱)(旭硝子玻璃有限公司)和30kg金属硅化物，再加入60l水。在自然反应开始的地方，自由基反应从氢氧化钾的较低水平开始，对流从反应池的底部到上部发生。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。反应温度不应超过92℃。反应在10h左右完成，固体被分离。可获得约48l(约70kg)的耐火材料。残余固体为金属硅化块。如果用水冲洗，大约会留下22公斤的金属硅化块。在剩余的金属硅化块中，加入约8kg的金属硅化块，总量为30kg的金属硅化块，供二次反应使用。以同样的方式作为主要的反应,8公斤的细粒度的氢氧化钾和7公斤的粉末碳酸钠(纯碱)(禁欲的玻璃有限公司)被添加到反应池,紧随其后的是22公斤的残留金属硅化物块和8公斤的新金属硅化物块从主反应,其次是60 l的水,开始二级耐火材料的制备反应。准备,根据个添加粒状氢氧化钾,然后添加碳酸钠(纯碱)粉,然后添加金属硅化材料块,然后添加水的顺序添加水,低水平的氢氧化钾开始反应,可以形成一个流上下积极反应,制备耐火性能好。

　　(1) Preparation method of refractory solution: 8 kg granular potassium hydroxide, 7 kg powdered sodium carbonate (soda ash) (Xunizi Glass Co., Ltd.) and 30 kg metal silicide were added into the reactor in turn, and 60L water was added. Where natural reactions begin, free radical reactions begin at a lower level of potassium hydroxide, and convection occurs from the bottom to the top of the reaction pool. The reaction temperature increases naturally. When the reaction temperature is in the range of 80 ~ 90 C, the reaction is in the active state. The reaction temperature should not exceed 92 C. The reaction was completed in about 10 hours and the solid was separated. About 48l refractories (about 70kg) can be obtained. Residual solids are metal silicides. If washed with water, about 22 kilograms of metal silicide will be left behind. In the remaining metal silicide blocks, about 8 kg of metal silicide blocks with a total amount of 30 kg were added for secondary reaction. In the same way as the main reaction, 8 kg of fine-grained potassium hydroxide and 7 kg of powder sodium carbonate (soda ash) (abstinent glass company limited) were added to the reaction tank, followed by 22 kg of residual metal silicide and 8 kg of new metal silicide from the main reaction, followed by 60 l of water, to start secondary fire resistance. The preparation reaction of the material. Prepare, according to the first adding granular potassium hydroxide, then adding sodium carbonate (soda) powder, then adding metal silicide blocks, then adding water sequentially, low level potassium hydroxide starts to react, can form a flow up and down positive reaction, preparation of good fire resistance.

　　(2)耐火胶的制备:耐火液、切旧报纸(其他旧纸也可以使用)、稻壳、棉花分别放入反应槽中，充分搅拌均匀生产耐火材料。

　　(2) The preparation of refractory adhesive: refractory liquid, cut old newspaper (other old paper can also be used), rice husk and cotton are put into the reaction tank respectively, and the refractory material is produced by fully mixing.

　　(3)如果这种耐火胶粘剂的性能是用耐火材料涂覆的，涂覆后的木材在1000~c火焰附近不会燃烧30分钟。将耐火混合料加压脱水45%含水率，180℃加压1h制得轻质耐火材料。火灾在1500℃下观察30min。10分钟后，火的表面被陶瓷化。燃烧30分钟后，将火切成大火。此外，耐火材料的隔音和耐冲击性也很好。其可切、锯、钉、螺丝等加工性能与木材相似。

　　(3) If the properties of this refractory adhesive are coated with refractory materials, the coated wood will not burn for 30 minutes near the 1000-c flame. The lightweight refractories were prepared by dewatering the refractory mixture under pressure to 45% moisture content and pressing at 180 C for 1 h. The fire was observed for 30 minutes at 1500 C. Ten minutes later, the surface of the fire was ceramized. After burning for 30 minutes, cut the fire into large pieces. In addition, refractories have good sound insulation and impact resistance. Its cutting, sawing, screw and other processing properties are similar to wood.

　　以上是氢氧化钾防火胶的制备方法和相关的知识介绍,这种防火胶可以替代传统的纸板,聚苯乙烯泡沫塑料和其他金属板,用于制备冷质量,电视机壳,包装材料和家具,厨具,等,功能非常大,希望你能理解。

　　The above is the preparation method and related knowledge of potassium hydroxide fire retardant glue. This fire retardant glue can replace traditional cardboard, polystyrene foam plastic and other metal boards. It can be used to prepare cold quality, TV case, packaging materials and furniture, kitchenware, etc. It has great functions. I hope you can understand.