玻璃纖維織物及其樹脂復(fù)合材料的電性能研究
發(fā)布時間：2019-05-18 20:18
【摘要】：隨著現(xiàn)代科學(xué)技術(shù)的快速發(fā)展，復(fù)合材料作為一種新型材料已成為二十一世紀的主導(dǎo)材料之一。在我國國民經(jīng)濟中，玻璃纖維增強樹脂基復(fù)合材料依靠其重量輕、比強度高、耐腐蝕、電絕緣性能好、傳熱慢、熱絕緣性好以及玻璃纖維復(fù)合材料的介電性能隨頻率不產(chǎn)生明顯改變和材料的破壞是內(nèi)部微觀破壞的不斷積累等特點，現(xiàn)已在雷達天線罩、汽車配件、印刷電路板等領(lǐng)域內(nèi)得到了廣泛地應(yīng)用。在上述的眾多應(yīng)用領(lǐng)域中，材料的電磁性能是至關(guān)重要的。因此，本文主要圍繞玻璃纖維織物及其復(fù)合材料的電磁性能開展一系列的相關(guān)研究，具體研究內(nèi)容如下： 在第一部分工作中，建立了纖維織物的介電常數(shù)模型。在本文中主要是借助于平行板電容器電容值的計算法則、Peirce機織物幾何結(jié)構(gòu)以及RC循環(huán)電路等來建立纖維織物介電常數(shù)模型的，且此模型與目前文獻中已有的模型存在一定的區(qū)別不同，此模型考慮了織物中經(jīng)緯紗線的交織規(guī)律，并利用Maple軟件來計算其介電常數(shù)值。利用文中所建立的介電常數(shù)模型計算得到平紋纖維織物的介電常數(shù)值比實驗測量值小4%~5%左右，因此，可認為此模型較為合理。此模型的建模方法也可用于建立其他組織結(jié)構(gòu)織物的介電常數(shù)模型中。 在第二部分工作中，為了探究結(jié)構(gòu)配置對玻璃纖維織物及其復(fù)合材料電性能的影響，從玻纖材料的設(shè)計、制作到性能表征都做了系統(tǒng)性的工作。文中主要通過改變玻璃纖維紗線的捻度和織物的組織結(jié)構(gòu)來研究結(jié)構(gòu)配置對玻璃纖維織物及其復(fù)合材料電性能的影響。經(jīng)研究分析得出，在三種不同結(jié)構(gòu)的玻纖材料中，平紋加捻玻纖織物及其復(fù)合材料的介電常數(shù)值都比平紋無捻玻纖織物及其復(fù)合材料的��；且平紋加捻玻纖復(fù)合材料的介質(zhì)損耗角正切值最��；對電磁波的衰減損耗和介質(zhì)材料電磁參數(shù)的研究分析表明，在電磁波透過平紋加捻玻纖復(fù)合材料時，電磁波的衰減損耗最小，且平紋加捻玻纖復(fù)合材料的電磁參數(shù)(S11和S12參數(shù))滿足材料在電氣領(lǐng)域內(nèi)的使用條件。綜上所述，在本文中的三種不同結(jié)構(gòu)玻纖復(fù)合材料中，平紋加捻玻纖復(fù)合材料的電磁性能最佳，且最適宜在電氣領(lǐng)域內(nèi)應(yīng)用。 在第三部分工作中，主要對玻纖復(fù)合材料的沖擊破壞及其介電性能之間的關(guān)系進行了研究，旨在探究運用復(fù)合材料的介電性能來檢測其破壞程度的新方法。文中采用自行設(shè)計的落錘沖擊儀器對玻纖復(fù)合材料進行沖擊破壞，并對沖擊破壞后玻纖復(fù)合材料的介電性能進行測試和分析，并得出了玻纖復(fù)合材料的介電性能與其破壞程度存在一定的關(guān)系；如落錘對平紋無捻玻纖復(fù)合材料進行12次的重復(fù)性沖擊破壞后，玻纖材料的介電常數(shù)值下降了16.7%。因此，可推測出一種新的復(fù)合材料檢測方法，即通過測試材料的介電性能來推測材料內(nèi)部的破壞能量。此外，實驗中也利用SEM技術(shù)對玻纖復(fù)合材料的表面破壞形貌以及橫截斷裂面進行了表征和分析。 綜上所述，本文主要從三個方面探究了玻璃纖維織物及其復(fù)合材料的電磁性能。首先，從理論上建立了纖維織物的介電常數(shù)模型；其次，在此基礎(chǔ)上研究了結(jié)構(gòu)配置對玻璃纖維織物及其復(fù)合材料電性能的影響情況；最后，對玻璃纖維復(fù)合材料的沖擊破壞及其介電性能之間的關(guān)系進行了研究，并為開發(fā)一種新的復(fù)合材料檢測方法提供了一定的研究基礎(chǔ)。
[Abstract]:With the rapid development of modern science and technology, the composite material has become one of the leading materials in the 21st century. in that national economy of China, the glass fib reinforced resin-based composite material has the advantages of light weight, high specific strength, corrosion resistance, good electrical insulation property, slow heat transfer, The thermal insulation property and the dielectric property of the glass fiber composite material are not obviously changed with the frequency and the destruction of the material is the continuous accumulation of the internal micro-damage, and has been widely applied in the fields of the radome, the automobile parts, the printed circuit board and the like. In many applications described above, the electromagnetic properties of the material are critical. Therefore, a series of relevant research is carried out on the electromagnetic properties of glass fiber fabric and its composite material. The specific research contents are as follows: In the first part, the dielectric constant modulus of the fiber fabric is established. In this paper, the dielectric constant model of the fiber fabric is established by means of the calculation rule of the capacitance value of the parallel plate capacitor, the fabric geometry of the Peirce machine, and the RC circulation circuit, etc., and the model is different from that of the existing model in the current literature. In the same way, this model takes into account the weaving rule of warp and weft yarn in the fabric, and uses the Maple software to calculate its dielectric constant. The dielectric constant of the plain fiber fabric is 4% ~ 5% less than that of the experimental measurement by using the dielectric constant model established in this paper. The modeling method of this model can also be used to establish the dielectric constant model of other tissue structure fabrics. in that work of the second part, in order to explore the influence of the structure configuration on the electrical property of the glass fiber fabric and the composite material, the design, manufacture and performance characterization of the glass fiber material have been made systematic In this paper, the electrical properties of glass fiber fabric and its composite material are studied by changing the twist of the glass fiber yarn and the structure of the fabric. The results show that, in the three kinds of glass fiber materials with different structure, the dielectric constant value of the plain-twisted glass fiber fabric and the composite material is smaller than that of the plain-twist glass fiber fabric and the composite material, and the dielectric loss tangent of the plain-twisted glass fiber composite material The analysis of the attenuation loss of the electromagnetic wave and the electromagnetic parameters of the dielectric material shows that the attenuation loss of the electromagnetic wave when the electromagnetic wave is transmitted through the plain-twisted glass fiber composite the electromagnetic parameters (S11 and S12 parameters) of the plain-twisted glass fiber composite material meet the requirements of the material in the electric field, In the light of the above, in the three kinds of glass fiber composites, the electromagnetic properties of the plain-twisted glass fiber composite are the best, and the most suitable for the electric field In the third part, the relationship between the impact and the dielectric properties of the glass fiber composites is studied, and the purpose of this study is to explore the dielectric properties of the composite materials to detect the damage range. In this paper, a self-designed drop weight impact instrument is used to impact the glass fiber composite material, and the dielectric property of the glass fiber composite material after the impact failure is tested and analyzed, and the dielectric property and the degree of failure of the glass fiber composite material are obtained. the dielectric constant value of the glass fiber material is reduced after 12 times of repeated impact damage to the plain and untwisted glass fiber composite material, 16.7%. Therefore, a new method for the detection of composite materials, i. e., by testing the dielectric properties of the material, can be used to estimate the inside of the material. In addition, the surface damage and the cross-sectional fracture surface of glass fiber composites were also studied by means of SEM. In the light of the above, the paper mainly discusses the glass fiber fabric and its composite from three aspects. Firstly, the dielectric constant model of the fiber fabric is established from the theory; secondly, the electric properties of the glass fiber fabric and the composite material of the glass fiber fabric and the composite material are researched on the basis of the structure In the end, the relationship between the impact failure and the dielectric property of the glass fiber composite material is studied, and a new method for detecting the composite material is provided.
【學(xué)位授予單位】：東華大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TB332
本文編號：2480304
[Abstract]:With the rapid development of modern science and technology, the composite material has become one of the leading materials in the 21st century. in that national economy of China, the glass fib reinforced resin-based composite material has the advantages of light weight, high specific strength, corrosion resistance, good electrical insulation property, slow heat transfer, The thermal insulation property and the dielectric property of the glass fiber composite material are not obviously changed with the frequency and the destruction of the material is the continuous accumulation of the internal micro-damage, and has been widely applied in the fields of the radome, the automobile parts, the printed circuit board and the like. In many applications described above, the electromagnetic properties of the material are critical. Therefore, a series of relevant research is carried out on the electromagnetic properties of glass fiber fabric and its composite material. The specific research contents are as follows: In the first part, the dielectric constant modulus of the fiber fabric is established. In this paper, the dielectric constant model of the fiber fabric is established by means of the calculation rule of the capacitance value of the parallel plate capacitor, the fabric geometry of the Peirce machine, and the RC circulation circuit, etc., and the model is different from that of the existing model in the current literature. In the same way, this model takes into account the weaving rule of warp and weft yarn in the fabric, and uses the Maple software to calculate its dielectric constant. The dielectric constant of the plain fiber fabric is 4% ~ 5% less than that of the experimental measurement by using the dielectric constant model established in this paper. The modeling method of this model can also be used to establish the dielectric constant model of other tissue structure fabrics. in that work of the second part, in order to explore the influence of the structure configuration on the electrical property of the glass fiber fabric and the composite material, the design, manufacture and performance characterization of the glass fiber material have been made systematic In this paper, the electrical properties of glass fiber fabric and its composite material are studied by changing the twist of the glass fiber yarn and the structure of the fabric. The results show that, in the three kinds of glass fiber materials with different structure, the dielectric constant value of the plain-twisted glass fiber fabric and the composite material is smaller than that of the plain-twist glass fiber fabric and the composite material, and the dielectric loss tangent of the plain-twisted glass fiber composite material The analysis of the attenuation loss of the electromagnetic wave and the electromagnetic parameters of the dielectric material shows that the attenuation loss of the electromagnetic wave when the electromagnetic wave is transmitted through the plain-twisted glass fiber composite the electromagnetic parameters (S11 and S12 parameters) of the plain-twisted glass fiber composite material meet the requirements of the material in the electric field, In the light of the above, in the three kinds of glass fiber composites, the electromagnetic properties of the plain-twisted glass fiber composite are the best, and the most suitable for the electric field In the third part, the relationship between the impact and the dielectric properties of the glass fiber composites is studied, and the purpose of this study is to explore the dielectric properties of the composite materials to detect the damage range. In this paper, a self-designed drop weight impact instrument is used to impact the glass fiber composite material, and the dielectric property of the glass fiber composite material after the impact failure is tested and analyzed, and the dielectric property and the degree of failure of the glass fiber composite material are obtained. the dielectric constant value of the glass fiber material is reduced after 12 times of repeated impact damage to the plain and untwisted glass fiber composite material, 16.7%. Therefore, a new method for the detection of composite materials, i. e., by testing the dielectric properties of the material, can be used to estimate the inside of the material. In addition, the surface damage and the cross-sectional fracture surface of glass fiber composites were also studied by means of SEM. In the light of the above, the paper mainly discusses the glass fiber fabric and its composite from three aspects. Firstly, the dielectric constant model of the fiber fabric is established from the theory; secondly, the electric properties of the glass fiber fabric and the composite material of the glass fiber fabric and the composite material are researched on the basis of the structure In the end, the relationship between the impact failure and the dielectric property of the glass fiber composite material is studied, and a new method for detecting the composite material is provided.
【學(xué)位授予單位】：東華大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TB332
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