本文關(guān)鍵詞： 納米氧化鋅 棉織物 可控生長 水熱反應(yīng)　出處：《西安工程大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：作為目前最重要的半導(dǎo)體之一—氧化鋅,是II-VI族寬禁帶半導(dǎo)體材料,室溫下的禁帶寬度3.37e V,激子束縛能達(dá)60me V,當(dāng)氧化鋅尺寸為納米級,伴隨納米效應(yīng)產(chǎn)生新的性質(zhì)和用途,廣泛用于氣敏傳感器、紫外光電探測器、激光發(fā)射器件、抗菌劑和紫外屏蔽劑等。首先,氧化鋅粉體可以通過光的反射和折射達(dá)到紫外屏蔽的目的;其次,由于量子尺寸效應(yīng),納米氧化鋅可以有效的衰減紫外光線,尤其是波長介于280-320nm之間;同時,在光照條件下,經(jīng)紫外光線與空氣和水的協(xié)調(diào)作用下,氧化鋅釋出的電子帶負(fù)電(e-),留下的空穴則帶正電(h+),激發(fā)空氣中的氧氣成為活性氧,活性氧能夠與多種微生物發(fā)生氧化降解反應(yīng),達(dá)到殺菌、除臭的效果。因此,將納米氧化鋅處理到紡織品表面,可賦予紡織品抗菌、除臭、抗紫外等特殊的功用性能。本課題借鑒在陶瓷、玻璃等基材上制備氧化鋅納米材料的方法,用濃度2%硅烷偶聯(lián)劑KH560、反應(yīng)液p H12、溫度80℃、時間30min對棉織物預(yù)處理,利用FTIR、XRD、SEM等表征手段探討硅烷偶聯(lián)劑KH560對棉織物的處理,對棉纖維的微觀結(jié)構(gòu)和形貌的影響,對棉織物親疏水性能的影響,為實(shí)現(xiàn)納米氧化鋅在棉織物表面的可控生長奠定基礎(chǔ)。水熱反應(yīng)溫度80℃、時間10min、鋅鹽濃度為0.1mol/L、反應(yīng)液p H為12時,氧化鋅晶體在棉織物表面迅速成核—生長,且晶體含量很高,結(jié)晶性較好。棉織物紫外屏蔽性能得到了很大提高,能夠達(dá)到200以上,織物手感良好�？椢锝�(jīng)水洗和摩擦后,紫外防護(hù)性能雖有降低,但是幅度很小,高于抗紫外線織物的標(biāo)準(zhǔn)。
[Abstract]:As one of the most important semiconductor materials, zinc oxide is a II-VI family wide band gap semiconductor material. The band gap at room temperature is 3.37 EV, and the exciton binding energy is 60 MV. When the size of zinc oxide is nanometer, it has new properties and applications with nanometer effect. It is widely used in gas sensors, UV photodetectors, laser emission devices, antimicrobial agents and UV shielding agents. The ultraviolet shielding can be achieved by the reflection and refraction of light. Secondly, because of the quantum size effect, nanometer ZnO can attenuate the ultraviolet ray effectively, especially the wavelength is between 280 nm and 320 nm. At the same time, under the condition of light, under the coordinated action of ultraviolet ray, air and water, the electrons released by zinc oxide are negatively charged and the holes left behind are positively charged. The oxygen in the air is stimulated to become reactive oxygen, which can be oxidized and degraded with a variety of microorganisms to achieve the effect of sterilization and deodorization. Therefore, nano-zinc oxide is treated to the surface of textiles. It can endow textiles with special functional properties such as antibacterial deodorization and UV resistance. In this paper the method of preparing zinc oxide nanomaterials on ceramic glass and other substrates was studied and the concentration of 2% silane coupling agent KH560 was used to prepare ZnO nanomaterials. The cotton fabric was pretreated with reaction solution pH 12 at 80 鈩，

本文編號：1457707