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. 難熔膠的制備方法

　　1. Preparation method of refractory adhesive

　　耐火材料制備方法:在反應(yīng)池中加入8kg顆粒狀氫氧化鉀、7kg粉狀碳酸鈉(蘇打灰)(旭硝子公司生產(chǎn))和30kg金屬硅化物，再加入60l水。其中自然反應(yīng)開始了，從產(chǎn)物的底部開始劇烈反應(yīng)，在反應(yīng)池中從底部一側(cè)向上部一側(cè)發(fā)生對流。反應(yīng)溫度自然升高。當(dāng)反應(yīng)溫度在80~90℃范圍內(nèi)時，反應(yīng)處于活性狀態(tài)。反應(yīng)溫度不得超過92℃。反應(yīng)在10h左右完成，分離固體得到約48l(約70kg)的難熔液體。其余固體為金屬硅化物塊。如果用水清洗，大約有22kg的金屬硅化物塊殘留。在剩余的金屬硅化塊中，加入約8kg的金屬硅化塊，共30kg的金屬硅化塊供二次反應(yīng)使用。與一級反應(yīng)一樣，在反應(yīng)池中加入8kg的顆粒狀碳酸鈉(蘇打灰)(旭硝子公司)，7kg的粉狀碳酸鈉(旭硝子公司)，然后在一級反應(yīng)中加入22kg的剩余金屬硅化物塊和8kg的新金屬硅化物塊。在制備過程中，先加入顆粒狀的氫氧化鉀，再加入粉末狀的碳酸鈉(純堿)，再加入金屬硅化塊，再按進料順序加水。反應(yīng)從較低的產(chǎn)物開始，可形成上下相反流動的活性反應(yīng)，制備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.

　　(2)制備氫氧化鉀耐火膠:將耐火液、剪碎的舊報紙(其他舊紙也可以)、稻殼、棉花加入反應(yīng)槽中，充分攪拌均勻，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、本防火膠的性能如果使用耐火涂層木材，涂層木材將在接近1000~c火焰處放置30分鐘不會燃燒。將耐火膠料加壓脫水45%含水率，可在180℃加壓1h制得輕質(zhì)耐火材料。該耐火材料在接近1500℃的火焰中觀察了30分鐘。10min后，對耐火材料表面進行陶瓷化處理。燃燒30min后，將耐火材料切開。此外，耐火材料的隔音耐沖擊性也很好。它可以切割，鋸，釘，螺絲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.

　　以上是氫氧化鉀的防火膠的制備方法和相關(guān)的知識介紹,這種防火膠可以取代傳統(tǒng)的厚板,聚苯乙烯泡沫塑料和其它板材,用于準(zhǔn)備冷定性框架,電視機情況下,包裝材料和桌椅和廚房用具,影響非常大。

　　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.