本文選題：聚氨酯 + 聚天門冬氨酸酯��； 參考：《北京化工大學(xué)》2017年碩士論文

【摘要】：我國是產(chǎn)煤大國,煤炭行業(yè)在我國經(jīng)濟發(fā)展中有著舉足輕重的地位。煤炭開采過程中需要大量機械設(shè)備的支持,而煤礦環(huán)境比較復(fù)雜,充斥著各種腐蝕性氣體和液體,容易對機械設(shè)備造成損害,危及煤礦作業(yè)安全。因此性能優(yōu)異的防腐涂層對煤礦機械有重要意義。另外,煤礦中存在著煤粉和瓦斯氣體等易燃易爆的物質(zhì),這就要求礦用防腐涂層必須具備抗靜電阻燃性能。為研制出性能優(yōu)異的礦用抗靜電阻燃防腐涂層,本文進行了一系列的試驗研究。首先研究了水性聚氨酯的制備工藝,測試了聚氨酯涂層在金屬表面的力學(xué)性能。根據(jù)國家標準GB/T1720-79(89)測試出水性聚氨酯涂層的附著力等級為5級,根據(jù)國家標準GB/T6739-2006測試出水性聚氨酯涂層的鉛筆硬度為H,雖然滿足礦用涂料的基本要求,但是力學(xué)性能表現(xiàn)一般。本文接下來研究了 PAE聚脲的制備工藝,使用聚醚胺(D-230)、異佛爾酮二胺(IPDA)、己二胺(HAD)和二環(huán)己基甲烷二胺(HMDA)分別制備了四種聚脲涂層,并測試了各種涂層的力學(xué)性能和防腐性能。試驗結(jié)果表明,聚天門冬氨酸酯聚脲的凝膠時間可以通過調(diào)整配方來控制,凝膠時間從十幾秒到幾個小時不等。力學(xué)性能和防腐性能測試結(jié)果表明PAE聚脲有良好的性能,因此確定選擇聚天門冬氨酸酯聚脲作為主要研究對象,對其進行抗靜電和阻燃改性。本文選用導(dǎo)電云母粉作為抗靜電劑、TCPP作為阻燃劑進行試驗研究,發(fā)現(xiàn)添加20%的導(dǎo)電云母粉和7%的TCPP可以使聚脲達到礦用抗靜電阻燃要求。對改性后的抗靜電阻燃聚脲涂層進行性能測試,發(fā)現(xiàn)其力學(xué)性能和防腐性能沒有因抗靜電阻燃改性受到大的影響。本文最后介紹了聚天門冬氨酸酯聚脲在煤礦中的實際應(yīng)用情況,并對施工設(shè)備和施工工藝進行了介紹。本課題研究的聚脲產(chǎn)品性能優(yōu)異,施工方便,并且種類豐富,用途廣泛,在實際應(yīng)用中表現(xiàn)良好。
[Abstract]:China is a big coal-producing country, and the coal industry plays an important role in the economic development of our country. The coal mining process needs the support of a large number of mechanical equipment, but the coal mine environment is more complex, full of various corrosive gases and liquids, easy to cause damage to the machinery and equipment, endangering the safety of coal mine operations. Therefore, the anticorrosive coating with excellent performance is of great significance to coal mine machinery. In addition, there are combustible and explosive materials such as coal powder and gas in coal mine, which requires the anti-static and flame-retardant property of mine anticorrosion coating. A series of experiments have been carried out in this paper in order to develop a mine antistatic flame retardant and anticorrosive coating with excellent properties. Firstly, the preparation process of waterborne polyurethane was studied, and the mechanical properties of polyurethane coating on metal surface were tested. According to the national standard GB/ T1720-79 (89), the adhesion grade of waterborne polyurethane coating is 5 grade, and the pencil hardness of waterborne polyurethane coating is tested according to the national standard GB / T6739-2006. Although it meets the basic requirements of mineral coatings, the mechanical properties are general. Four polyurea coatings were prepared by polyether amine (D-230), isophorone diamine (IPDA), hexanediamine (had) and dicyclohexylmethane diamine (HMDA). The results show that the gel time of polyaspartic acid ester polyurea can be controlled by adjusting the formula, and the gel time ranges from 10 seconds to several hours. The test results of mechanical and anticorrosive properties showed that PAE polyurea had good performance. Therefore, polyaspartic acid ester polyurea was selected as the main research object, and its antistatic and flame retardant modification was carried out. In this paper, conductive mica powder was selected as antistatic agent TCPP as flame retardant. It was found that 20% conductive mica powder and 7% TCPP could make polyurea meet the requirements of mine antistatic and flame retardant. The mechanical and anticorrosive properties of the modified antistatic flame-retardant polyurea coating were not greatly affected by the antistatic and flame-retardant modification. Finally, the paper introduces the practical application of polyaspartic acid ester polyurea in coal mine, and introduces the construction equipment and construction technology. The polyurea product studied in this paper has excellent performance, convenient construction, rich variety, wide application and good performance in practical application.
【學(xué)位授予單位】：北京化工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TQ637;TD40

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