本文關(guān)鍵詞：鱗片狀無機(jī)填料改性及其對涂層性能的影響　出處：《南京航空航天大學(xué)》2016年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 防腐涂料 玻璃鱗片 接枝改性 端羧基液態(tài)丁腈橡膠 苯并三氮唑 N N-羰基二咪唑

【摘要】：鱗片狀無機(jī)填料在涂層中具有相互平行疊加排列的特性,可以提高涂層的致密性和抗介質(zhì)滲透性。玻璃鱗片(GF)由于其優(yōu)良的化學(xué)性穩(wěn)定性、防銹性、耐堿性、耐鹽霧性、耐候性等性能,被廣泛應(yīng)用于防腐涂料中。然而,由于玻璃鱗片與聚合物在化學(xué)結(jié)構(gòu)和物理形態(tài)上存在顯著差異,兩者相容性較差,嚴(yán)重影響涂料的防腐蝕性能。因此,對玻璃鱗片填料進(jìn)行表面改性,成為目前研究的熱點。本研究針對玻璃鱗片與樹脂間相容性較差的問題,采用甲苯-2,4-二異氰酸酯(TDI)、六亞甲基二異氰酸酯(HDI)、γ-(2,3-環(huán)氧丙氧基)丙基三甲氧基硅烷(KH560)作為活性橋接劑,制備了三種表面活化接枝的玻璃鱗片(GF-TDI、GF-HDI、GF-KH560)。在GF-TDI、GF-HDI和GF-KH560的基礎(chǔ)上接枝包覆端羧基液態(tài)丁腈橡膠(CTBN),制備了GF-g-CTBN復(fù)合材料;在GF-TDI的基礎(chǔ)上接枝包覆苯并三氮唑(BTA)和N,N-羰基二咪唑(05FD),制備了GF-TDI-BTA和GF-TDI-05FD兩種復(fù)合材料。采用傅立葉紅外光譜儀(FTIR)、掃描電鏡(SEM)、X射線能譜儀(EDS)對接枝改性效果進(jìn)行了表征。以普通玻璃鱗片和改性玻璃鱗片分別作為填料、環(huán)氧樹脂E44為成膜物材料,胺類固化劑NX2015為固化劑配制環(huán)氧清漆涂料,研究了改性玻璃鱗片對涂層附著力、耐化學(xué)品性、剪切拉伸性、吸水率、耐沖擊等性能的影響。結(jié)果表明,接枝改性的玻璃鱗片表面出現(xiàn)了有機(jī)物的特征峰和C、N元素,表面形貌發(fā)生明顯變化,證明玻璃鱗片表面成功接枝包覆了有機(jī)物。改性玻璃鱗片與樹脂的相容性良好,在涂層中分散均勻。環(huán)氧清漆涂層的附著力、耐化學(xué)品性、剪切拉伸性、抗?jié)B透性、耐沖擊等性能得到提高,本研究制備的改性玻璃鱗片填料對進(jìn)一步提高防腐涂料性能和使用壽命,以及擴(kuò)大玻璃鱗片填料的應(yīng)用范圍具有重要的意義。
[Abstract]:The scale - like inorganic filler has the characteristics of parallel superposition in the coating, which can improve the density of the coating and the permeability of the medium. Glass scale (GF) is widely used in anticorrosive coatings because of its excellent chemical stability, antirust, alkali resistance, salt resistance, weatherability and so on. However, due to the significant difference between glass flake and polymer in chemical structure and physical form, their compatibility is poor, which seriously affects the anticorrosion performance of coatings. Therefore, the surface modification of glass flake filler has become a hot spot of research. In this study, glass flake between resin and poor compatibility problems, using -2,4- (TDI), toluene diisocyanate (HDI), six methylene diisocyanate (2,3- gamma epoxypropoxy) propyltrimethoxysilane (KH560) as active bridging agent, three kinds of glass flake surface activation grafting was prepared (GF-TDI, GF-HDI, GF-KH560). Grafting carboxyl terminated liquid nitrile rubber based on GF-TDI, GF-HDI and GF-KH560 (CTBN), the GF-g-CTBN composite materials were prepared by grafting; benzo triazole three on the basis of GF-TDI (BTA) and N N- (05FD), carbonyl imidazole two GF-TDI-BTA and GF-TDI-05FD two composite materials were prepared. The effect of grafting modification was characterized by Fu Liye infrared spectrometer (FTIR), scanning electron microscope (SEM) and X ray energy spectrometer (EDS). Ordinary glass flake and modified glass flake as filler and epoxy resin E44 as membrane material, NX2015 amine curing agent as curing agent to prepare epoxy varnish coating on the modified glass flake coating on the adhesion, chemical resistance, tensile shear, water absorption, impact resistance and other performance. The results showed that the characteristic peaks and C and N elements of organic glass appeared on the surface of grafted glass flakes. The surface morphology changed obviously. It was proved that the glass scales were successfully grafted on the surface of glass flakes. The modified glass scale has good compatibility with the resin, and it is dispersed evenly in the coating. Epoxy varnish coating adhesion, chemical resistance, tensile shear resistance, permeability, impact resistance and other properties are improved, the research on the preparation of modified glass flake filler to further improve the performance and longevity of anti-corrosion coatings, and expand the application range of glass flake filler has important significance.
【學(xué)位授予單位】：南京航空航天大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2016
【分類號】：TB306

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 張昕;許季海;李紅良;劉謙;邵佳敏;烏學(xué)東;;聚苯硫醚摻雜改性玻璃鱗片防腐涂層耐腐蝕性研究[J];涂料工業(yè);2013年07期

2 馬莉娜;齊暑華;程博;何棟;;國內(nèi)外環(huán)氧樹脂增韌改性的研究進(jìn)展[J];粘接;2012年12期

3 馮鈉;劉建輝;常素芹;;氫氧化鎂表面化學(xué)改性及其在塑料中的應(yīng)用研究進(jìn)展[J];塑料科技;2012年01期

4 馬拯;劉璐;;無機(jī)填料的改性及其在復(fù)合材料中的應(yīng)用[J];裝備制造技術(shù);2011年06期

5 劉乃亮;齊暑華;理莎莎;吳利敏;魯惠玲;;CTBN增韌改性熱固性樹脂研究進(jìn)展[J];中國塑料;2011年03期

6 倪楠楠;賈夢秋;;聚苯胺包覆玻璃鱗片復(fù)合物的制備與表征[J];涂料工業(yè);2010年11期

7 李斌;劉秀生;韓世忠;劉蘭軒;汪洋;崔盼;;羧基丁腈橡膠改性環(huán)氧樹脂的合成[J];材料保護(hù);2010年01期

8 樊新華;張憶;裴亞利;;粒徑對二氧化硅消光粉應(yīng)用性能的影響[J];現(xiàn)代涂料與涂裝;2009年09期

9 林治華;;國內(nèi)氧化鐵產(chǎn)品的現(xiàn)狀和發(fā)展趨勢[J];中國涂料;2008年10期

10 張軍;趙衛(wèi)民;郭文躍;王勇;李中譜;;苯并咪唑類緩蝕劑緩蝕性能的理論評價[J];物理化學(xué)學(xué)報;2008年07期

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