【正文】 畢業(yè)論文 PAA添加量對 PVC/PAA復合材料的影響 太原工業(yè)學院畢業(yè)論文 I PAA 添加量對 PVC/PAA 復合材料的影響 摘要 :本論文以 PVC/PAA 復合材料為研究對象，通過 共混改性方法，改性聚氯乙烯。首先 使用兩步法制備出合適分子量的聚酰 胺酸 , 通過熱重分析、力學實驗、紅外光譜分析、偏光顯微鏡分析等手段，測試加入不同添加量的聚酰胺酸的復合材料的性能，從而分析探討不同添加量的 PAA 對復合材料性能的影響。實驗結果表明： 隨著 PAA 添加量的增加， PVC/PAA 復合材料的拉伸強度、沖擊強度以及斷裂伸長率都呈上升的趨勢，熱穩(wěn)定性也會提高。 關鍵詞 :復合材料，共混改性，聚氯乙烯，聚酰胺酸， 添加量 太原工業(yè)學院畢業(yè)論文 II Effect of PAA content on PVC/PAA posites Abstract: It is the research object about PVC/PAA posite material in this paper, To modified Polyvinyl chloride (PVC) through blending modification methods. Twostep method to prepare different molecular weight of PAA by thermogravimetric analysis, mechanical test, Infrared spectrum analysis, polarizing microscope analysis methods, such as test to join different addition amount of polyamide acid posite materials performance, so as to analyze different addition amount of PAA on the properties of posite materials. The experimental results show that: with PAA, with the increase of adding amount of PVC/PAA posite materials tensile strength, impact strength and elongation at break are rising trend, thermal stability will also increase. Keywords: posite material, blending modification, polyvinyl chloride, polyamide acid, adding quantity 太原工業(yè)學院畢業(yè)論文 III 目錄 1 前 言 .................................................................................................................................. 1 聚氯乙烯 ......................................................................................................................... 1 聚酰胺酸 ......................................................................................................................... 2 研究目的及重要意義 ..................................................................................................... 3 論文研究內容 ................................................................................................................. 4 2 實驗部分 ............................................................................................................................ 5 實驗原料 ......................................................................................................................... 5 原材料 .......................................................................................................................... 5 聚酰胺酸的合成 .......................................................................................................... 5 復合材料的配方 ........................................................................................................... 7 實驗儀器及設備 ............................................................................................................. 9 實驗工藝流程 ................................................................................................................. 9 聚酰胺酸分子量的測定 .............................................................................................. 9 復合材料的制備 .........................................................................................................11 復合材料的成型及樣品 的制備 .................................................................................11 實驗項目 ....................................................................................................................... 12 沖擊實驗 .................................................................................................................... 12 拉力實驗測試 ............................................................................................................ 12 熱重實驗 .................................................................................................................... 13 掃描電鏡 .................................................................................................................... 13 偏光顯微鏡 ................................................................................................................ 14 紅外光譜 .................................................................................................................... 14 垂直燃燒 .................................................................................................................... 14 3 結果與討論 ...................................................................................................................... 15 復合材料的力學性能分析 ........................................................................................... 15 復合材料的熱穩(wěn)定性能的數據及分析 ....................................................................... 20 熱重實驗分析 ............................................................................................................ 20 垂直燃燒測試分析 .................................................................................................... 22 復合材料聚集態(tài)結構及反應的分析 ........................................................................... 22 太原工業(yè)學院畢業(yè)論文 IV 偏光顯微鏡圖的分析 ................................................................................................ 22 紅外光譜圖的分析 .................................................................................................... 23 4 結論 ..................................................................................................................................