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氫氧化鉀的耐火粘合劑的制備方法
來源：http://www.gaozhifeng.com/ 日期：2023-07-15 發(fā)布人：admin
對(duì)于氫氧化鉀大家可能是不大熟悉，氫氧化鉀這種化合物因?yàn)榫哂袕?qiáng)堿性及腐蝕性，因而在化工行業(yè)和其它一些行業(yè)中都有很重要的應(yīng)用，也可以作為很多類試劑應(yīng)用于不同的領(lǐng)域，比如干燥劑、吸收劑、耐火粘合劑等。用于干燥劑我們較常見的就是食品包裝里面裝的干燥劑是為了防止食品受潮。
People may not be familiar with potassium hydroxide. Because of its strong alkalinity and corrosiveness, potassium hydroxide is an important compound in the chemical industry and other industries. It can also be used as a variety of reagents in different fields, such as desiccant, absorbent, fire-resistant adhesive, etc. The common use of desiccants in food packaging is to prevent food from getting damp.
（1）原材料與配方
(1) Raw materials and formulas
①耐火液配方材料 配比/kg 材料 配比/kg氫氧化鉀 8金屬硅化物 30粉末狀碳酸鈉 7水 60。
① Refractory liquid formula material ratio/kg material ratio/kg potassium hydroxide 8 metal silicide 30 powdered sodium carbonate 7 water 60.
②沒有機(jī)耐火膠配方材料 配比/質(zhì)量份 材料 配比/質(zhì)量份耐火液 10稻殼 5舊報(bào)紙 80棉 5。
② There is no formula material ratio/mass ratio material ratio/mass ratio refractory liquid 10 rice husks 5 old newspapers 80 cotton 5.
（2）氫氧化鉀耐火粘合劑的制備方法
(2) Preparation method of potassium hydroxide refractory adhesive
①耐火液制備方法：在反應(yīng)槽內(nèi)順序加入顆粒狀氫氧化鉀8kg、粉末狀碳酸鈉（蘇打灰）（旭硝子株式會(huì)社制）7kg和金屬硅化物30kg，再加入60l的水。
① Preparation method of refractory liquid: add 8kg of granular potassium hydroxide, 7kg of powdered sodium carbonate (soda ash) (made by Asahi Co., Ltd.) and 30kg of metal silicide into the reaction tank in sequence, and then add 60l of water.
在其中開始自然反應(yīng)，從下層的氫氧化鉀開始劇烈反應(yīng)，在反應(yīng)槽內(nèi)從下側(cè)向上側(cè)發(fā)生對(duì)流。反應(yīng)溫度自然上升，反應(yīng)溫度在80~90℃的范圍內(nèi)時(shí)，呈活躍的反應(yīng)狀態(tài)。反應(yīng)溫度高不超過92℃。反應(yīng)在10h左右結(jié)束，分離固體，可以獲得約48l（約70kg）耐火液。殘留的固體是金屬硅化物塊，如果用水洗凈，殘留約22kg左右的金屬硅化物塊。
The natural reaction starts from the potassium hydroxide in the lower layer, and convection occurs from the lower side to the upper side in the reaction tank. The reaction temperature naturally rises, and when the reaction temperature is within the range of 80-90 ℃, it shows an active reaction state. The reaction temperature should not exceed 92 ℃. The reaction ends around 10 hours, and the solid is separated to obtain approximately 48 l (approximately 70 kg) of refractory liquid. The remaining solid is a metal silicide block. If washed with water, about 22kg of metal silicide blocks will remain.
在這種殘存的金屬硅化物塊中，再補(bǔ)充加入約8kg左右的金屬硅化物塊，總和為30kg的金屬硅化物，供給到二次反應(yīng)中。與一次反應(yīng)相同，在反應(yīng)槽內(nèi)加入顆粒狀氫氧化鉀8kg，粉末狀碳酸鈉（蘇打灰）（旭硝子株式會(huì)社制）7kg，接著，依次加入一次反應(yīng)殘留的金屬硅化物塊22kg和新的金屬硅化物塊8kg，接著加入60l水，開始二次制備耐火液的反應(yīng)。
In this residual metal silicide block, approximately 8kg of metal silicide blocks are added, totaling 30kg, and supplied to the secondary reaction. As for the primary reaction, 8kg of granular potassium hydroxide and 7kg of powdered sodium carbonate (soda ash) (Asahi Co., Ltd.) are added into the reaction tank, followed by 22kg of residual metal silicide blocks and 8kg of new metal silicide blocks from the primary reaction, followed by 60l of water to start the reaction of secondary preparation of refractory liquid.
在制備中，按照先加顆粒狀氫氧化鉀，再加入粉末狀碳酸鈉（蘇打灰），再加入金屬硅化物塊，然后加水的加料順序，由下層氫氧化鉀開始反應(yīng)，可形成上下對(duì)流式活躍反應(yīng)，由此制備的耐火液性能較好。
In the preparation, granular potassium hydroxide is added first, then powdered sodium carbonate (soda ash) is added, then metal silicide blocks are added, and then water is added. The reaction starts from the lower layer of potassium hydroxide, which can form an up and down convection active reaction. The refractory liquid thus prepared has good performance.
②耐火膠黏劑的制備：將耐火液、裁斷的舊報(bào)紙（其它舊紙也可用）、稻殼、棉分別加入反應(yīng)槽中，進(jìn)行充分?jǐn)嚢杈鶆蚣粗频媚突鸩牧稀?/div>
② Preparation of refractory adhesive: Add refractory liquid, cut old newspaper (other old paper can also be used), rice husk, and cotton to the reaction tank, and stir thoroughly to obtain refractory material.
（3）這種耐火粘合劑性能若用耐火液涂覆木板，將涂覆的木板靠近1000~c火焰處30min不會(huì)發(fā)生燃燒。若將耐火膠黏劑混合物加壓脫水至45%水分含量，在180℃下加壓1h制得輕質(zhì)耐火材料。
(3) If the performance of this fire-resistant adhesive is coated with fire-resistant liquid on the wooden board, the coated wooden board will not burn near a flame of 1000~C for 30 minutes. If the refractory adhesive mixture is pressurized and dehydrated to 45% moisture content, a lightweight refractory material is prepared by pressurizing at 180 ℃ for 1 hour.
將這種耐火材料靠近1500℃火焰觀察30min，10min后耐火材料表面發(fā)生陶瓷化，經(jīng)30min燃燒后，切開耐火材料，陶瓷化深度僅o.8mm，火未通人耐火材料內(nèi)部。此外，耐火材料隔音抗沖擊性能亦佳。其可切、鋸、釘釘子、釘螺釘?shù)燃庸ば阅芘c木材類同。
Observe this refractory material close to a 1500 ℃ flame for 30 minutes. After 10 minutes, the surface of the refractory material undergoes ceramic transformation. After 30 minutes of combustion, the refractory material is cut open, with a ceramic transformation depth of only 0.8mm. The fire does not enter the interior of the refractory material. In addition, refractory materials have excellent sound insulation and impact resistance. Its processing properties such as cutting, sawing, nailing, and screwing are similar to those of wood.
以上就是氫氧化鉀的耐火粘合劑的制備方法以及相關(guān)知識(shí)介紹，這類耐火粘合劑可代替?zhèn)鹘y(tǒng)的厚紙板、聚苯乙烯泡沫塑料和其它板材，用于制備冷質(zhì)框架、電視機(jī)殼、包裝材料和桌椅及廚房用具等，作用非常大，希望你們能有所認(rèn)識(shí)。http://www.gaozhifeng.com
The above is the preparation method and related knowledge introduction of potassium hydroxide fire-resistant adhesive. This kind of fire-resistant adhesive can replace the traditional cardboard, polystyrene foam plastic and other plates for the preparation of cold frames, TV cases, packaging materials, tables and chairs, kitchen utensils, etc. It is very useful. I hope you can know something about it. http://www.gaozhifeng.com
此文關(guān)鍵詞：氫氧化鉀
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