抄取無石棉密封墊片的制備及性能研究
發(fā)布時間:2018-11-11 16:24
【摘要】:鑒于石棉粉塵會危害人類健康,世界上許多發(fā)達國家已經投入了大量的人力和物力去開發(fā)新型的無石棉墊片,以期能達到如石棉墊片相同的性價比。因此,進一步優(yōu)化無石棉墊片的選材和制作工藝,成為了當今密封技術領域的研究熱點之一本文制作的無石棉密封墊片主要原料為無石棉纖維、填料、膠乳和化學助劑。選用芳綸漿粕為增強纖維,纖維素纖維和礦物棉纖維為混雜纖維,來替代石棉纖維;選用高嶺土、滑石粉和云母為填料;選用丁腈膠乳和丁苯膠乳為彈性粘結劑;選用凝聚劑、消泡劑和絮凝劑為化學助劑。新研制的無石棉密封墊片具備制作工藝簡單、密封性能卓越、密封效果良好和高性價比等特點。根據選定的配方制作了無石棉密封墊片,并對該密封墊片的密度、拉伸強度、壓縮回彈性能、蠕變松弛性能及燒失量進行了分析和測算。結果表明,研制的無石棉密封墊片達到了預期的性能指標,也就表明了研制的無石棉密封墊片可以替代傳統(tǒng)的石棉墊片。
[Abstract]:In view of the fact that asbestos dust is harmful to human health, many developed countries have invested a great deal of manpower and material resources to develop new stone-free cotton pads in order to achieve the same performance-price ratio as stone cotton pads. Therefore, the further optimization of the material selection and manufacturing process of asbestos free cotton pad has become one of the research hotspots in the field of sealing technology. The main raw materials of this paper are asbestos-free fibers, fillers, latex and chemical auxiliaries. Aramid pulp was used as reinforcing fiber, cellulose fiber and mineral cotton fiber as hybrid fiber to replace asbestos fiber, kaolin, talc powder and mica as filler. Butyronitrile latex and benzene butadiene latex were used as elastic binder, coagulant, defoamer and flocculant were used as chemical auxiliaries. The newly developed asbestos-free sealing gasket is characterized by simple manufacturing process, excellent sealing performance, good sealing effect and high performance to price ratio. According to the selected formula, the asbestos-free sealing gasket was made. The density, tensile strength, compression resilience, creep relaxation property and burning loss of the gasket were analyzed and calculated. The results show that the asbestos-free sealing gasket has achieved the expected performance index, which indicates that the developed asbestos-free sealing gasket can replace the traditional stone cotton gasket.
【學位授予單位】:昆明理工大學
【學位級別】:碩士
【學位授予年份】:2015
【分類號】:TB32
本文編號:2325433
[Abstract]:In view of the fact that asbestos dust is harmful to human health, many developed countries have invested a great deal of manpower and material resources to develop new stone-free cotton pads in order to achieve the same performance-price ratio as stone cotton pads. Therefore, the further optimization of the material selection and manufacturing process of asbestos free cotton pad has become one of the research hotspots in the field of sealing technology. The main raw materials of this paper are asbestos-free fibers, fillers, latex and chemical auxiliaries. Aramid pulp was used as reinforcing fiber, cellulose fiber and mineral cotton fiber as hybrid fiber to replace asbestos fiber, kaolin, talc powder and mica as filler. Butyronitrile latex and benzene butadiene latex were used as elastic binder, coagulant, defoamer and flocculant were used as chemical auxiliaries. The newly developed asbestos-free sealing gasket is characterized by simple manufacturing process, excellent sealing performance, good sealing effect and high performance to price ratio. According to the selected formula, the asbestos-free sealing gasket was made. The density, tensile strength, compression resilience, creep relaxation property and burning loss of the gasket were analyzed and calculated. The results show that the asbestos-free sealing gasket has achieved the expected performance index, which indicates that the developed asbestos-free sealing gasket can replace the traditional stone cotton gasket.
【學位授予單位】:昆明理工大學
【學位級別】:碩士
【學位授予年份】:2015
【分類號】:TB32
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