電磁屏蔽功能紙的研究

輕化工程論文編號(hào):QH042  論文字?jǐn)?shù):14706,頁(yè)數(shù):32

 目 錄
中文摘要 I
英文摘要II
目錄 III
1 緒論 1
1.1 電磁污染現(xiàn)狀 1
1.2 電磁屏蔽的原理 1
1.3 電磁屏蔽材料 2
1.4 碳纖維電磁屏蔽復(fù)合材料的開(kāi)發(fā) 4
1.4.1 填充型 4
1.4.2 復(fù)合材料型 4
1.5 復(fù)相紙基電磁屏蔽材料 5
2 分散劑對(duì)電磁屏蔽的影響實(shí)驗(yàn) 7
2.1 實(shí)驗(yàn)儀器及檢測(cè)方法 7
2.3 分散劑使用量的影響 9
2.3.1 實(shí)驗(yàn)方案 9
2.3.2 實(shí)驗(yàn)結(jié)果與分析 10
2.4 總結(jié) 13
3 碳纖維對(duì)電磁屏蔽的影響實(shí)驗(yàn) 14
3.1 試驗(yàn)儀器及方法 14
3.1.1 主要設(shè)備 14
3.1.2 檢測(cè)方法 14
3.2 實(shí)驗(yàn)方案 15
3.3 實(shí)驗(yàn)結(jié)果與分析 15
3.4 總結(jié) 20
4 改性碳纖維對(duì)電磁屏蔽的影響實(shí)驗(yàn) 21
4.1 實(shí)驗(yàn)儀器及方法 21
4.1.1 主要設(shè)備 21
4.1.2 檢測(cè)方法 22
4.2 氧化改性碳纖維的影響實(shí)驗(yàn) 22
4.3 偶聯(lián)改性碳纖維的影響實(shí)驗(yàn) 23
4.3.1 實(shí)驗(yàn)方案 23
4.3.2 實(shí)驗(yàn)結(jié)果與分析 24
4.4 總結(jié) 25
5 結(jié)論 26
致  謝 27
參考文獻(xiàn) 28

摘 要：隨著科技突飛猛進(jìn)，電子產(chǎn)品普及千家萬(wàn)戶(hù)，大功率電氣設(shè)備數(shù)量急劇增加，導(dǎo)致電磁環(huán)境急劇惡化，從而帶來(lái)了一系列危險(xiǎn)隱患。將碳纖維與塑料、樹(shù)脂等基體復(fù)合后形成樹(shù)脂基纖維增強(qiáng)復(fù)合材料，是現(xiàn)代先進(jìn)復(fù)合材料的典型代表，也是一種具有電磁屏蔽功能的材料。
 本文簡(jiǎn)要闡述了電磁屏蔽的原理和碳纖維的性能，通過(guò)不同濃度、不同分散劑以及不同表面改性方法對(duì)碳纖維分散性影響進(jìn)行探討，研究了碳纖維在水相的分散性能、碳纖維功能紙的導(dǎo)電性和電磁屏蔽性能。研究結(jié)果表明，隨著碳纖維含量的不斷增加，電磁屏蔽的總體性能在不斷得到改善，當(dāng)選用聚丙烯酰胺作為分散劑時(shí)，分散性能較好。通過(guò)鈦酸酯偶聯(lián)劑改性后的改性碳纖維，其分散性能、導(dǎo)電性和電磁屏蔽性能都有所提高。
 通過(guò)本課題的研究，證明了碳纖維電磁屏蔽功能紙的可行性，為早日開(kāi)發(fā)出高性能電磁屏蔽功能紙奠定了一定的理論基礎(chǔ)，也提供了數(shù)據(jù)依據(jù)。
 關(guān)鍵詞：電磁屏蔽 ；碳纖維 ；分散劑 ；zeta電位

The research for electromagnetic shielding function of paper

 Abstract: With technological advances, electronic products universal thousands of households, the number of high-power electrical equipment increased dramatically, leading to a sharp deterioration of the electromagnetic environment, resulting in a series of dangerous problems. Carbon fiber and plastic, resin matrix after the formation of resin-based composite fiber-reinforced composite materials, advanced composite materials in modern representative of the typical, but also a function of electromagnetic shielding materials.
 This paper described the principle of electromagnetic shielding and the performance of carbon fiber through the different concentrations, different dispersing agent, as well as different methods of surface modification on dispersion of carbon fibers to explore the impact study of carbon fiber in the aqueous dispersion of the performance of carbon fiber paper conductivity function and electromagnetic shielding properties. The results showed that with the continuous carbon fiber content increased, the overall performance of electromagnetic shielding in continuous improvement was elected as the use of Polyacrylamide dispersant, the dispersion properties. Titanate coupling agent, through the modification of the modified carbon fiber, its dispersion properties, conductivity and electromagnetic shielding properties are improved.
 Through the study of the subject to prove that the electromagnetic shielding of carbon fiber of the feasibility of paper, for the early development of high performance electromagnetic shielding paper lay a theoretical foundation, it provides the data basis.
 Keywords：Electromagnetic shielding; carbon fiber; dispersant; zeta potential