發(fā)布時(shí)間：2018-04-24 22:32

  本文選題：地聚物 + 定量分析　； 參考：《廣西師范學(xué)院》2017年碩士論文

【摘要】：植物纖維板應(yīng)用前景非常廣泛,但大多基體材料為有機(jī)物,由于其耐火性能較差、對環(huán)境釋放有害物質(zhì),應(yīng)用受到很大限制。水泥基植物纖維復(fù)合板可以克服有機(jī)粘結(jié)劑基植物纖維板的缺點(diǎn),且已得到一定程度的應(yīng)用,但所用纖維大多采用打漿后的木漿纖維,其生產(chǎn)工藝比較復(fù)雜。地聚物是一種低CO2排放、低能耗及對環(huán)境友好的無機(jī)膠凝材料,替代水泥制備則能克服制備水泥基植物纖維板過程的缺點(diǎn)。因此,地聚物基植物纖維板的制備與性能研究具有重要意義。由于植物中纖維素含量及纖維結(jié)構(gòu)和地聚物基體結(jié)構(gòu)對復(fù)合材料的力學(xué)性能有很大影響,采用分析手段對其進(jìn)行表征,進(jìn)而發(fā)現(xiàn)性能與結(jié)構(gòu)的關(guān)系非常具有現(xiàn)實(shí)意義。植物中的纖維素含量可利用硝酸-乙醇法和FTIR定量分析法兩種方法測量得到,通過比較可以得出FTIR定量分析的方法是切實(shí)可行的,不僅能夠保證測量的準(zhǔn)確度,操作起來還快速簡單無污染。所以,可利用FTIR定量分析法快速確定植物中的纖維素含量,結(jié)合植物中半纖維素的含量來篩選添加植物的種類,具有實(shí)際應(yīng)用價(jià)值。本文利用稻殼或稻草纖維與偏高嶺土為原料,采用堿激發(fā)方式在常溫下制備植物纖維—偏高嶺土基地聚物復(fù)合材料。系統(tǒng)地研究了水玻璃模數(shù)、水膠比、堿處理、植物纖維尺寸等對地聚物基植物纖維復(fù)合材料性能的影響。研究表明:當(dāng)水玻璃模數(shù)為1.5,水膠比為0.55,稻殼纖維含量為18%,稻殼尺寸為40-60目時(shí),制備的地聚物基稻殼纖維復(fù)合材料的性能較優(yōu);比較稻殼堿處理前后合成的材料的靜曲強(qiáng)度值,稻殼經(jīng)1%的NaOH浸泡24 h,制備的地聚物材料的性能最優(yōu)。對于地聚物基稻草纖維復(fù)合材料性能的研究表明:當(dāng)水玻璃模數(shù)為1.5,水膠比為0.5,稻草纖維含量為10%,制備的地聚物材料的性能最優(yōu);當(dāng)用堿液處理稻草時(shí),使復(fù)合材料性能最佳的NaOH濃度是質(zhì)量分?jǐn)?shù)4%,最佳浸泡時(shí)間是24小時(shí)。采用傅里葉變換紅外光譜法(FTIR)、X射線衍射法(XRD)、掃描電鏡(SEM)三種分析手段對地聚物基稻草纖維復(fù)合材料的結(jié)構(gòu)進(jìn)行了研究。FTIR分析表明:當(dāng)水玻璃模數(shù)為1.5、水膠比為0.5、稻草含量10%時(shí),地聚物中聚合反應(yīng)效果較好,得到的材料的力學(xué)性能最佳。XRD與SEM的分析結(jié)果都與FTIR的分析結(jié)果一致。另外,對于堿處理的稻草及其制備的地聚物材料,利用FTIR分析其結(jié)構(gòu),得出結(jié)論:質(zhì)量分?jǐn)?shù)4%的NaOH浸泡24 h得到的稻草中的半纖維素溶解的較徹底,纖維素受損程度也最小,制備的地聚物材料的性能也最優(yōu)。
[Abstract]:The application prospect of plant fiberboard is very extensive, but most of the matrix material is organic. Because of its poor fire resistance, the application of harmful substances to the environment is very limited. The cement based plant fiber composite board can overcome the shortcomings of the organic binder based plant fiber board, and has been applied to a certain extent, but most of the fibers used are used. The production process of the pulp fiber after beating is complex. The geopolymer is a kind of low CO2 emission, low energy consumption and environmentally friendly inorganic cementitious material. Instead of cement preparation, it can overcome the shortcomings of the preparation of cement based plant fiberboard. Therefore, the preparation and Performance Research of the polymer based plant fiber board are of great significance. The content of cellulose, the structure of fiber and the structure of the polymer have great influence on the mechanical properties of the composites. The relationship between the properties and the structure is very practical. The content of cellulose in plants can be measured by two methods: nitric acid ethyl alcohol method and FTIR quantitative analysis method. By comparison, it can be concluded that the method of FTIR quantitative analysis is feasible, not only can ensure the accuracy of the measurement, but also can be operated quickly and simple without pollution. Therefore, the FTIR quantitative analysis method can be used to quickly determine the cellulose content in plants and to screen the species of plants with the content of hemicin in plants. In this paper, we use rice husk or straw fiber and metakaolin as raw materials to prepare polymer composite material of plant fiber - metakaolin base at normal temperature by alkali excitation. The effects of the modulus of water glass, water to glue ratio, alkali treatment and plant fiber size on the properties of the polymer based plant fiber composites are studied. The results show that when the modulus of water glass is 1.5, the ratio of water to glue is 0.55, the content of rice husk fiber is 18%, and the size of rice husk is 40-60 mesh, the properties of the composite material of the geopolymer based rice husk fiber are better. The performance of the prepared Geopolymer Material is best compared with that of the rice husk after the alkali treatment, and the rice husk is soaked in 24 h by 1% NaOH. The study on the properties of the polymer based straw fiber composite material showed that when the modulus of water glass was 1.5, the ratio of water to glue was 0.5, the content of straw fiber was 10%, the performance of the prepared geopolymer material was the best. When the alkali solution was used to treat the straw, the NaOH concentration was 4% and the best soaking time was 24 hours. The use of Fu Liye. Transformation infrared spectroscopy (FTIR), X ray diffraction (XRD) and scanning electron microscopy (SEM) were used to study the structure of the polymer based rice straw fiber composite material based on the.FTIR analysis. The results of.FTIR analysis showed that when the modulus of water glass was 1.5, the ratio of water to glue was 0.5 and the content of straw was 10%, the effect of polymerization was better and the mechanical properties of the material were the best. The analysis results of.XRD and SEM are in accordance with the results of FTIR analysis. In addition, for alkali treated rice straw and its prepared Geopolymer Material, using FTIR to analyze its structure, it is concluded that the hemicellulose dissolved in the rice straw obtained by the mass fraction of NaOH soaked in 24 h is more thorough and the degree of fibrinolytic damage is minimal, and the prepared Geopolymer Material The performance is also optimal.

【學(xué)位授予單位】：廣西師范學(xué)院
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TB332

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 陳治坤;崔潮;趙建偉;肖斌;彭暉;;激發(fā)劑模數(shù)及活性對偏高嶺土基地聚物強(qiáng)度的影響研究[J];公路與汽運(yùn);2016年06期

2 彭暉;崔潮;蔡春聲;李樹霖;趙建偉;;激發(fā)劑濃度對偏高嶺土基地聚物性能的影響機(jī)制[J];復(fù)合材料學(xué)報(bào);2016年12期

3 李曉娜;范希峰;武菊英;張國芳;劉尚義;武美軍;程研博;張楠;;纖維素類芒屬草本能源植物品質(zhì)近紅外光譜快速檢測技術(shù)研究[J];光譜學(xué)與光譜分析;2016年01期

4 張進(jìn);何鑫;萬瑞英;;漫反射傅里葉變換紅外光譜技術(shù)在定量分析中的應(yīng)用[J];理化檢驗(yàn)(化學(xué)分冊);2015年09期

5 崔潮;趙建偉;李樹霖;彭暉;蔡春聲;;升溫條件下偏高嶺土基地質(zhì)聚合物粘結(jié)劑的粘結(jié)性能研究[J];實(shí)驗(yàn)力學(xué);2015年04期

6 龐艷龍;韓紅;蘇越驍;田春香;鐘燕春;陳欣;;近紅外光譜在再生纖維素纖維/氨綸針織面料成分分析中的應(yīng)用[J];武漢紡織大學(xué)學(xué)報(bào);2014年06期

7 劉榮欣;王進(jìn)美;狄艷全;孫國通;;基于近紅外光譜法快速檢測毛滌織物中的纖維含量[J];合成纖維;2014年11期

8 彭暉;李樹霖;蔡春聲;張雄飛;崔潮;;偏高嶺土基地質(zhì)聚合物的配合比及養(yǎng)護(hù)條件對其力學(xué)性能及凝結(jié)時(shí)間的影響研究[J];硅酸鹽通報(bào);2014年11期

9 范慧青;王喜明;王雅梅;;利用傅里葉變換紅外光譜法快速測定木材纖維素含量[J];木材加工機(jī)械;2014年04期

10 彭暉;崔潮;蔡春聲;李樹霖;張雄飛;;偏高嶺土活性的煅燒溫度影響及測定方法研究[J];硅酸鹽通報(bào);2014年08期

相關(guān)博士學(xué)位論文 前3條

1 呂高金;玉米稈及其主要組分的熱解規(guī)律與生物油特征組分的定量分析[D];華南理工大學(xué);2012年

2 鄭廣儉;無定形Al_2O_3-2SiO_2粉體制備及地質(zhì)聚合反應(yīng)機(jī)理研究[D];廣西大學(xué);2011年

3 常德龍;人工林木材變色與防治技術(shù)研究[D];東北林業(yè)大學(xué);2005年

相關(guān)碩士學(xué)位論文 前3條

1 朱國振;粉煤灰/偏高嶺土地質(zhì)聚合物材料的制備及其性能研究[D];景德鎮(zhèn)陶瓷學(xué)院;2014年

2 鞏思宇;養(yǎng)護(hù)溫度和時(shí)間對堿激發(fā)偏高嶺土基地質(zhì)聚合物反應(yīng)過程及性能的影響[D];廣西大學(xué);2012年

3 施芳;粉煤灰—偏高嶺石基礦物聚合材料的合成及聚合反應(yīng)機(jī)理[D];江西理工大學(xué);2011年

，

本文編號：1798555