本文關鍵詞： 紙漿模塑 掃描電鏡 邊沿結構 跌落仿真 緩沖包裝　出處：《湖南工業(yè)大學》2017年碩士論文　論文類型：學位論文

【摘要】：紙漿模塑制品是一種以植物纖維為原料,通過一定成型工藝模壓形成的包裝制品。紙漿模塑制品具有加工工藝簡單、易成型、材料可降解回收等優(yōu)點,被廣泛應用于各個領域。目前,缺乏相應的紙漿模塑制品設計及生產國家標準與行業(yè)標準,紙漿模塑生產制造過程中不同生產廠商所生產加工出的紙漿模塑制品材料配比、力學性能等均存在較大差異。本論文以不同材質紙漿模塑為研究對象,對不同材質的紙漿模塑材料性能及制品性能進行了研究。本研究能夠為紙漿模塑制品的設計選材,及紙漿模塑制品生產加工過程中纖維配比提供依據(jù)。對木漿、竹漿、甘蔗漿、瓦楞原紙、白漿、黑漿、回收舊報紙漿、回收瓦楞紙漿材料進行拉伸實驗,獲得了不同材質紙漿模塑材料的應力-應變曲線。利用不同配比紙漿模塑材料拉伸應力應變曲線,獲取了材料彈性模量值。由于紙漿模塑制品屬于紙質薄壁材料,紙質薄壁材料在拉伸過程中橫向變形較小,傳統(tǒng)測試方法難以滿足要求。論文利用數(shù)字圖像相關法與拉伸實驗相結合,獲得了不同材質的紙漿模塑材料的泊松比值。利用掃描電鏡對木漿、竹漿、甘蔗漿、瓦楞原紙、白漿、黑漿、回收舊報紙漿、回收瓦楞紙漿材料的表面纖維分布及斷面纖維狀態(tài)進行了掃描電鏡分析。研究了不同材質紙漿模塑材料的纖維結構特性,以及材料纖維特性對紙漿模塑材料力學特性的影響。對白漿材料紙漿模塑制品進行了靜態(tài)抗壓實驗,獲得了制品在抗壓過程中的載荷-位移曲線。并利用ANSYS軟件對木漿、竹漿、甘蔗漿、黑漿、回收舊報紙漿、回收瓦楞紙漿材料的紙漿模塑制品進行靜態(tài)壓縮仿真分析,研究了同一結構不同材料對紙漿模塑制品承載能力的影響。利用ANSYS/LS-DYNA DTM模塊對不同邊沿結構的紙漿模塑制品進行了跌落仿真分析,研究了邊沿結構對紙漿模緩沖性能的影響。以緩沖性能最好的邊沿結構的紙漿模塑制品為模型,以不同材料為變量,研究了動態(tài)沖擊作用下,材質對紙漿模塑制品緩沖性能的影響。
[Abstract]:Pulp molded product is a kind of packaging product which is made of plant fiber and molded by certain molding technology. Pulp molded product has the advantages of simple processing, easy molding, degradable material recovery and so on. It is widely used in various fields. At present, there is no corresponding national standard and industry standard for pulp molded products design and production. In the process of pulp moulding production, the material ratio and mechanical properties of pulp molded products produced by different manufacturers are different. In this paper, pulp molded with different materials is taken as the research object. The properties of pulp molded materials and products of different materials were studied. This study can provide the basis for the design and selection of pulp molded products and the fiber ratio in the process of production and processing of pulp molded products. Bamboo pulp, sugarcane pulp, corrugated base paper, white pulp, black pulp, recovery of old newspaper pulp, recovery of corrugated pulp materials for tensile test. The stress-strain curves of different pulp moulding materials were obtained, and the tensile stress-strain curves of pulp molded materials with different ratios were obtained. The elastic modulus of the material is obtained. Because the pulp molded products belong to paper thin-walled materials, the transverse deformation of paper thin-walled materials is small in the process of drawing. The traditional testing method is difficult to meet the requirements. The paper combines the digital image correlation method with the tensile experiment to obtain the Poisson ratio of molded pulp of different materials. The scanning electron microscope is used to analyze wood pulp, bamboo pulp and sugarcane pulp. Corrugated base paper, white pulp, black pulp, recycled old newspaper pulp. The surface fiber distribution and cross-section fiber state of corrugated pulp were analyzed by SEM. The fiber structure characteristics of pulp molded materials with different materials were studied. And the influence of fiber properties on the mechanical properties of pulp moulding materials. The static compression test of pulp molded products with white pulp was carried out. The load-displacement curves of the products in the process of compressive resistance were obtained, and the wood pulp, bamboo pulp, sugarcane pulp, black pulp and old newspaper pulp were recovered by ANSYS software. The static compression simulation analysis of pulp molded products with corrugated pulp materials was carried out. The effect of different materials of the same structure on the load-carrying capacity of pulp molded products was studied. Using ANSYS/LS-DYNA. The drop simulation analysis of pulp molded products with different edge structures was carried out by DTM module. The influence of edge structure on the cushioning performance of pulp mould was studied. The molded pulp product with the best edge structure was used as model and different materials as variables under dynamic impact. The effect of material on the cushioning performance of pulp molded products.
【學位授予單位】：湖南工業(yè)大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TB484

【參考文獻】

相關期刊論文 前10條

1 寇沙沙;李智麗;靳燕;;掃描電鏡在金屬材料檢測中的應用[J];包鋼科技;2016年01期

2 王志偉;彭春虎;;紙漿模塑制品沖擊承載能力和能量吸收分析[J];應用力學學報;2013年04期

3 王楠;李恩普;湯忠斌;李發(fā)東;;二維數(shù)字圖像相關方法的拉伸實驗誤差分析[J];光學儀器;2012年03期

4 梁軍鳳;劉宗瑜;;制漿方法概述[J];湖北造紙;2011年01期

5 冒銀_g;紀玉梁;顧玉祥;張新昌;;重載紙漿模塑制品的結構及其承載性能分析[J];包裝工程;2010年19期

6 計宏偉;王懷文;郭玉花;;紙漿模塑材料本構方程擬合的改進[J];包裝工程;2009年10期

7 王懷文;計宏偉;苗惠;陳金龍;王和敏;;紙漿模塑材料壓縮力學行為及其本構關系的研究[J];機械強度;2009年03期

8 黃麗飛;和克智;王大威;;紙漿模塑制品生產工藝、常見問題及對策的研究[J];包裝與食品機械;2009年03期

9 林冬鳴;陳永銘;張新昌;;紙漿模塑材料的彈黏塑性模型及實驗驗證[J];中國造紙學報;2008年02期

10 黃俊彥;朱婷婷;;紙漿模塑制品的結構形式及其設計[J];湖南工業(yè)大學學報;2008年02期

相關博士學位論文 前1條

1 邱仁輝;紙漿模塑制品成型機理及過程控制的研究[D];東北林業(yè)大學;2002年

相關碩士學位論文 前2條

1 李翌程;鋼管混凝土勁性骨架拱橋轉體施工關鍵技術研究[D];武漢理工大學;2006年

2 王和敏;紙漿模塑的緩沖機理及優(yōu)化分析研究[D];天津大學;2005年

，

本文編號：1462045