本文選題：納米微孔硅 + 調(diào)濕性能　； 參考：《哈爾濱工業(yè)大學(xué)》2017年碩士論文

【摘要】：納米微孔硅是由古代硅藻等遺體經(jīng)過地質(zhì)作用形成的一種生物沉積巖,其主要化學(xué)成分是SiO_2,具有質(zhì)輕、比表面積大、孔隙率高、吸附性強(qiáng)等特點(diǎn)。納米微孔硅自身具有的獨(dú)特的物理化學(xué)性質(zhì),使其具有良好的吸放濕能力,不僅可用作調(diào)濕材料,同時(shí)具有殺菌、除臭、吸附甲醛等功能。本文將納米微孔硅作為一種功能填料加入涂料中,研制出具有調(diào)濕功能的環(huán)保內(nèi)墻涂料。本文通過比表面積法(BET、BJH)對(duì)其孔結(jié)構(gòu)進(jìn)行了表征,通過X射線衍射(XRD)、X射線熒光光譜分析(XRF)對(duì)其結(jié)構(gòu)進(jìn)行了分析,以及通過掃描電鏡觀察了其表面形貌,并通過等濕吸濕曲線和吸放濕速度曲線對(duì)其吸放濕性能進(jìn)行評(píng)價(jià),對(duì)其調(diào)濕機(jī)制進(jìn)行了探討研究。本文將納米微孔硅作為一種新型功能填料,并添加高嶺土、硅灰石粉和鈦白粉等顏填料及助劑,基料選用丙烯酸乳液,進(jìn)行配方設(shè)計(jì)研究。將顏、填料和乳液作為常用因子,利用正交試驗(yàn)進(jìn)行配合比設(shè)計(jì),分為四個(gè)水平,并對(duì)涂料樣品的常規(guī)性能和吸放濕進(jìn)行測(cè)試,通過直觀分析法評(píng)價(jià)出性能最佳的涂料配方。比表面積大小和孔結(jié)構(gòu)特征是影響納米微孔硅吸放濕性能的重要因素。在正交試驗(yàn)的基礎(chǔ)上,本文還研究了作為調(diào)濕材料的納米微孔硅的粒徑大小對(duì)涂料樣品吸放濕性能的影響。隨著納米材料和納米技術(shù)的發(fā)展,納米材料在建筑材料領(lǐng)域也得到了廣泛應(yīng)用。本文將納米TiO_2加入調(diào)濕涂料制成納米復(fù)合涂料,研究了納米TiO_2的添加量對(duì)涂料常規(guī)性能和吸放濕性能的影響。
[Abstract]:Nano-porous silicon is a kind of biosedimentary rock formed by geological process of ancient diatom and other remains. Its main chemical composition is SiO-2, which has the characteristics of light weight, large specific surface area, high porosity and strong adsorption. Because of its unique physical and chemical properties, nanometer microporous silicon can be used not only as humidity-regulating material, but also as bactericidal, deodorizing and formaldehyde adsorbent. In this paper, nanometer microporous silicon was added into the coating as a functional filler, and an environmentally friendly interior wall coating with moisture regulating function was developed. In this paper, the pore structure was characterized by specific surface area method (BET-BJH), the structure was analyzed by X-ray diffraction (XRD) and X-ray fluorescence spectroscopy (XRF), and the surface morphology was observed by scanning electron microscope (SEM). The moisture absorption and desorption performance were evaluated by the ismoisture absorption curve and the moisture absorption and desorption rate curve, and the humidity-regulating mechanism was studied. In this paper, nanometer microporous silicon is used as a new type of functional filler, and the additive and pigment filler such as kaolin, wollastonite and titanium dioxide are added, and acrylic emulsion is used as the base material to design the formula. The pigment, filler and emulsion were used as common factors, and the mixture ratio was designed by orthogonal test, which was divided into four levels. The conventional properties and moisture absorption and desorption of coating samples were tested, and the best coating formulation was evaluated by visual analysis. The specific surface area and pore structure are important factors affecting the moisture absorption and desorption performance of nano-porous silicon. On the basis of orthogonal test, the effect of particle size of nano-porous silicon on the moisture absorption and desorption properties of coatings was also studied. With the development of nanomaterials and nanotechnology, nanomaterials have been widely used in the field of building materials. In this paper, nanometer TiO_2 was added to moisturizing coatings to prepare nano-composite coatings. The effects of the amount of nano- on the conventional properties and moisture absorption and desorption properties of the coatings were studied.
【學(xué)位授予單位】：哈爾濱工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TU561.61

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