本文關鍵詞：車用針刺無紡布復合蜂窩板材料的性能研究　出處：《東華大學》2015年碩士論文　論文類型：學位論文

  更多相關文章： 針刺無紡布 蜂窩板 耐磨性 剝離強度

【摘要】：隨著汽車產(chǎn)業(yè)的快速發(fā)展，，與其相關聯(lián)的汽車零部件產(chǎn)業(yè)發(fā)展也突飛猛進，汽車用紡織品由于其性能優(yōu)良，工藝簡單，成本較低等優(yōu)勢，成為汽車制造業(yè)越來越青睞的原材料。同時，聚丙烯蜂窩板結構的大量開發(fā)與運用，使得材料輕量化趨勢越來越明顯。 本課題的研究對象正是當下最受汽車生產(chǎn)商，甚至是航天器制造商歡迎的高性能紡織品復合蜂窩板。在汽車后備箱內表面安裝的板材，是由改性PP蜂窩板和PP/PET針刺無紡布復合在一起的板材，使材料表面擁有地毯的簇絨感，又不失剛度。 本課題主要以企業(yè)提供的PP/PET針刺無紡布和改性PP蜂窩板為研究對象，主要以針刺布與蜂窩板復合工藝為研究內容，主要實驗包括： 一、結合生產(chǎn)實踐，分別對熱壓溫度、熱壓時間、熱壓壓力三個因素進行單因子實驗，主要以剝離強度和耐磨性能為評價指標，研究其對PP/PET針刺布和改性PP蜂窩板復合的影響，并得到了相應曲線圖。剝離強度方面，熱壓溫度越高，熱壓時間越長，熱壓壓力越大，剝離強度越大，但表面平整度下降；耐磨性方面，隨著熱壓溫度、熱壓時間、熱壓壓力的增大，耐磨性能先增大后降低。 二、根據(jù)企業(yè)提供不同種類的針刺無紡布，通過分析研究，選取PP/PET的不同配比、不同克重的針刺無紡布分別與改性PP蜂窩板進行熱壓，對制得樣品進行剝離強度和耐磨性能測試。結合實驗數(shù)據(jù)和實際生產(chǎn)，針刺無紡布PP/PET的配比是40/60時，剝離強度和耐磨性方面都比較好，克重為150g/m2時，測試指標即可達到要求。 三、通過前期試驗與研究，開發(fā)出創(chuàng)新型加工工藝的針刺無紡布與蜂窩板復合，即PP紡粘布與PP/PET針刺無紡布結合的形式再與改性PP蜂窩板熱壓的方式，結合了PP低熔點和PET耐磨性的雙重優(yōu)點，制得樣品與傳統(tǒng)混紡制得的PP/PET針刺無紡布對比研究，結果表明新型方法生產(chǎn)的針刺無紡布在剝離強度和耐磨性方面都有提高。 四、最后以熱壓溫度、熱壓壓力、熱壓時間為三因素，以前期實驗為理論基礎，分別設置三個水平，設計三因素三水平正交試驗，探索研究最佳工藝組合方案為熱壓溫度180℃，熱壓時間10s，熱壓壓力0.2Mpa。
[Abstract]:With the rapid development of automobile industry, the auto parts industry is developing rapidly. Because of its excellent performance, simple process and low cost, automotive textiles have many advantages. At the same time, with the development and application of polypropylene honeycomb structure, the trend of lightweight materials becomes more and more obvious. The research object of this topic is the high performance textile composite honeycomb plate which is most popular among automobile manufacturers and even spacecraft manufacturers. The plate is installed on the inner surface of the automobile trunk. It is made of modified PP honeycomb sheet and PP/PET needle-punched non-woven sheet, which makes the material surface have the tufted feeling of carpet without losing rigidity. This topic mainly takes the PP/PET needling non-woven cloth and the modified PP honeycomb board provided by the enterprise as the research object, mainly takes the needle punching cloth and the honeycomb plate compound technology as the research content, the main experiment includes: The main contents are as follows: 1. Combined with the production practice, the single factor experiments were carried out on the three factors of hot pressing temperature, hot pressing time and hot pressing pressure, mainly taking peel strength and wear resistance as the evaluation index. The effect on the composite of PP/PET needled cloth and modified PP honeycomb sheet was studied, and the corresponding curves were obtained. The higher the hot pressing temperature, the longer the hot pressing time and the greater the hot pressing pressure. The greater the peeling strength is, the lower the surface smoothness is. In terms of wear resistance, with the increase of hot pressing temperature, hot pressing time and hot pressing pressure, the wear resistance first increases and then decreases. Secondly, according to the different kinds of needled non-woven fabric provided by the enterprise, through the analysis and research, select the different ratio of PP/PET, different grams of weight of needle-punched non-woven fabric and modified PP honeycomb respectively for hot pressing. The peeling strength and wear resistance of the samples were tested. Combined with the experimental data and actual production, when the ratio of PP/PET of needled non-woven fabric was 40/60, the peel strength and wear resistance of the samples were better. When the gram weight is 150 g / m ~ 2, the test index can meet the requirement. Thirdly, through the previous experiment and research, the needle-punched non-woven fabric and honeycomb plate composite of innovative processing technology were developed. The combination of PP spunbonded fabric and PP/PET needle-punched non-woven fabric combined with the hot pressing of modified PP honeycomb plate combined the advantages of low melting point of PP and wear resistance of PET. The results show that the peeling strength and wear resistance of the needle-punched non-woven fabrics produced by the new method have been improved. Finally, with the three factors of hot pressing temperature, hot pressing pressure and hot pressing time as the theoretical basis, three levels are set up, and three factors and three levels orthogonal test are designed. The optimum process combination is hot pressing temperature 180 鈩

本文編號：1436140