【摘要】：玻璃纖維價(jià)格低廉、性能優(yōu)異,但其在膠乳抄取無石棉密封墊片材料領(lǐng)域的研究報(bào)道并不多。本文將玻璃纖維引入到墊片材料配方中,旨在研究玻璃混雜纖維墊片材料的性能,希望通過此研究能夠研制出綜合性能優(yōu)良且價(jià)格適宜的無石棉密封產(chǎn)品。文章主要的工作及成果如下:(1)采用KH550硅烷偶聯(lián)劑、PEO試劑、濃硫酸對玻璃纖維進(jìn)行預(yù)處理,取得了一定的效果。(2)測試了墊片材料的壓縮回彈率、拉伸強(qiáng)度、密度、燒失率性能,部分配方制備的試樣已經(jīng)能夠滿足這幾項(xiàng)性能的使用技術(shù)要求。采用多元線性回歸方法分析了配方組分與墊片性能的關(guān)系,結(jié)果表明:玻璃纖維、QY復(fù)合棉纖維對墊片性能有較大影響。(3)在相同工藝條件下,對比分析了玻璃纖維墊片材料與礦物棉纖維墊片的常規(guī)性能、耐高溫性能及價(jià)格比。研究表明:在使用極限溫度范圍內(nèi),玻璃纖維墊片的耐熱性能較好;壓縮回彈性能、拉伸強(qiáng)度、密度與礦物棉纖維墊片有一定差距,但其價(jià)格相對較低,玻璃纖維在密封材料領(lǐng)域具有一定應(yīng)用前景。(4)對墊片材料配方進(jìn)行了多目標(biāo)優(yōu)化,優(yōu)化后的結(jié)果基本達(dá)到了期望的目標(biāo)值,同時(shí)利用優(yōu)化函數(shù)得到的配方實(shí)測性能值與函數(shù)目標(biāo)值對比,雖然個(gè)別性能值存在一定的偏差,但綜合性能較好,優(yōu)化后的配方具有一定參考價(jià)值。(5)建立密封墊片配方BP神經(jīng)網(wǎng)絡(luò)模型,以試驗(yàn)數(shù)據(jù)為樣本集。通過網(wǎng)絡(luò)預(yù)測,在隱含層神經(jīng)元個(gè)數(shù)為8時(shí)得出的預(yù)測整體值與試驗(yàn)實(shí)際值較接近,雖然個(gè)別指標(biāo)還存在一定的差距,但考慮到較少的訓(xùn)練樣本等因素,所得結(jié)果可以接受。
[Abstract]:Glass fiber is low in price and excellent in performance, but there are few reports in the field of producing asbestos-free gasket material. In this paper, glass fiber was introduced into the gasket material formulation to study the properties of glass hybrid fiber gasket material. It is hoped that a non-asbestos sealing product with good comprehensive performance and suitable price can be developed through this study. The main work and results are as follows: (1) the glass fiber was pretreated with KH550 silane coupling agent, PEO reagent and concentrated sulfuric acid. (2) the compression resilience, tensile strength and density of the gasket material were measured. Some of the samples prepared by the formula have been able to meet the technical requirements of these properties. The relationship between the composition of the formula and the performance of gasket was analyzed by multivariate linear regression method. The results showed that glass fiber and QY composite cotton fiber had great influence on the performance of gasket. (3) under the same technological conditions, The conventional properties, high temperature resistance and price ratio of glass fiber gasket and mineral cotton fiber gasket were compared and analyzed. The results show that the heat resistance of glass fiber gasket is better in the range of limit temperature. The compressive resilience, tensile strength and density are different from those of mineral cotton fiber gasket, but the price is relatively low, and the glass fiber has a certain application prospect in the field of sealing material. (4) the formulation of gasket material is optimized by multi-objective method. The result of optimization basically reaches the expected target value. At the same time, the measured performance value of the formula obtained by the optimization function is compared with the function target value. Although there are some deviations in individual performance values, the comprehensive performance is better. The optimized formula has certain reference value. (5) the BP neural network model of the seal gasket formula is established, and the test data is taken as the sample set. Through the network prediction, the whole predicted value of 8 neurons in the hidden layer is close to the actual value of the experiment. Although there are still some differences in some indexes, the results can be accepted considering the factors such as fewer training samples and so on.
【學(xué)位授予單位】：昆明理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TB332

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本文編號：2404292