本文選題：聚乙二醇單甲醚 + 分子篩　； 參考：《東華大學(xué)》2017年碩士論文

【摘要】：蓄熱調(diào)溫紡織品是將適合人類身體溫度的相變材料植入到纖維及紡織產(chǎn)品內(nèi)部,能夠在外界吸收或放出熱量調(diào)節(jié)體溫的纖維和紡織品。它能夠隨所處環(huán)境的變化而吸收或放出熱量,從而保持人體皮膚微氣候的溫度恒定,提高服用舒適性。本項(xiàng)研究旨在利用傳統(tǒng)聚丙烯熔融加工方法制備具有調(diào)溫性能的聚丙烯共混體系,對調(diào)溫纖維前期產(chǎn)品進(jìn)行應(yīng)用基礎(chǔ)研究。研究內(nèi)容主要分為兩部分:首先為定形相變材料的制備,即采用適合人體體溫范圍內(nèi)具備相變行為的聚乙二醇單甲醚1000作為相變材料,選用介孔分子篩和蒙脫土作為載體材料,分別利用溶液吸附法及插層法制備定形相變材料,采用FTIR、SEM及DSC等手段對定形相變材料的形貌結(jié)構(gòu)與相變性能進(jìn)行表征和分析。然后,將定形相變材料與聚丙烯樹脂利用熔融共混技術(shù)制備不同含量定形相變材料的聚丙烯/定形相變材料共混體系,采用SEM、DCS、TGA等手段對共混體系的結(jié)構(gòu)、性能及影響因素進(jìn)行系統(tǒng)分析。研究定形相變材料的加入對于聚丙烯復(fù)合相變材料的相變性能保持的影響,為熔融法制備聚丙烯相變纖維奠定了一定的基礎(chǔ)。通過本研究得到的主要結(jié)論如下:(1)采用溶液吸附法,選取有機(jī)相變材料聚乙二醇單甲醚(MPEG1000)作為相變介質(zhì),以具有超高表面積的介孔分子篩(MCM-41)作為無機(jī)載體材料,制備了MPEG1000/MCM-41定形相變材料。并采用掃描電鏡(SEM)、BET比表面積及孔徑分布測試及DSC等測試手段分別對介孔分子篩和MPEG1000/MCM-41復(fù)合相變材料的表面形貌、結(jié)構(gòu)、物理吸附性能及相變性能進(jìn)行表征。表征結(jié)果顯示:MCM-41表面積高達(dá)769.4 m2/g,MPEG1000固定在分子篩孔隙及表面,DSC分析表明MPEG1000/MCM-41定形相變材料中隨相變材料含量的增加,相變焓逐漸增大,MPEG1000的最佳含量在65%,相變潛熱為83.3 J/g;MPEG1000的羥基與和載體材料介孔分子篩硅氧面上的氧形成了氫鍵,兩者之間并沒有發(fā)生化學(xué)反應(yīng),沒有新物質(zhì)的生成;SEM測試表明相變材料均勻的分布在載體的孔洞及表面;蓄/放熱試驗(yàn)表明MPEG1000/MCM-41定形相變材料具有優(yōu)良的調(diào)溫性能。(2)以聚乙二醇單甲醚1000為相變材料、蒙脫土為載體材料,通過溶液插層法及熔融插層法,將相變材料插入到蒙脫土層間,制備MPEG1000/MMT定形相變材料。采用FT-IR、SEM、XRD及DSC等分析手段對上述兩種定形相變材料形貌、結(jié)構(gòu)及相變性能進(jìn)行表征。結(jié)果表明:兩種不同的制備方法獲得的復(fù)合定形相變材料具有相似的形貌和結(jié)構(gòu)特征;蒙脫土的內(nèi)羥基與聚乙二醇單甲醚的羥基形成了氫鍵,MPEG1000以物理作用吸附于MMT片層結(jié)構(gòu)中,在表面張力和層間作用力等作用下,MPEG1000被限制在無機(jī)MMT載體的層間,阻止了泄露;熔融插層法制備的定形相變材料的儲熱性能較優(yōu),聚乙二醇單甲醚的最佳含量為47%,相變溫度為36.6?C、相變潛熱為57.1 J/g;熱重分析定形相變材料在300?C以下沒有質(zhì)量損失,蓄/放熱試驗(yàn)表明MPEG1000/MMT定形相變材料具有良好的升降溫滯后性。(3)以聚丙烯為基體,與蒙脫土基定形相變材料利用熔融共混制備聚丙烯/蒙脫土基定形相變材料共混體系。采用SEM分析相變材料在共混體系中的分散情況,采用DSC分析共混體系的相變性能,采用FT-IR對共混體系各組分之間的相互作用。結(jié)果表明,蒙脫土基定形相變材料在PP/MPEG1000/MMT共混體系中分布均勻,粒徑在2~5μm左右,相變焓達(dá)到21.4 J/g,與PP/MPEG1000共混物對比,PP/MPEG1000/MMT共混體系的相變焓是其3.6倍,定形相變材料的制備有效解決了MPEG1000在聚丙烯熔融加工過程的泄露問題,為熔融紡制聚丙烯相變纖維奠定了一定的基礎(chǔ)。
[Abstract]:Heat storage and tempering textiles are fibers and textiles that can be implanted into the fiber and textile products, which are suitable for human body temperature, and can absorb or release heat from the outside world. It can absorb or release heat with the changes in the environment, thus keeping the temperature of the skin microclimate constant and improving the comfort of the body. The purpose of this study is to prepare the polypropylene blends with temperature regulating properties by using the traditional polypropylene melting process. The basic research on the application of the pre tempered fiber is divided into two parts: first, the preparation of the fixed phase change material, that is, the PCM suitable for the body temperature range is suitable for the PCM two. The mesoporous molecular sieve and montmorillonite as the carrier materials are selected as the phase change materials, and the form phase change materials are prepared by the solution adsorption method and the intercalation method respectively. The morphology and phase change properties of the fixed phase change materials are characterized and analyzed by FTIR, SEM and DSC. Then the fixed phase change material and the polypropylene resin are used. The blend system of polypropylene / shape phase change materials with different content of shape phase change materials was prepared by melt blending technology. The structure, properties and influence factors of the blend system were systematically analyzed by SEM, DCS and TGA. The effect of the addition of the phase change material on the phase change properties of the PCM was studied. The main conclusions of this study are as follows: (1) the solution adsorption method was used to select the organic phase change material polyethylene glycol monomethyl ether (MPEG1000) as the phase change medium, and the mesoporous molecular sieve (MCM-41) with super high surface area was used as the inorganic carrier material, and the MPEG1000/MCM-41 was prepared. The surface morphology, structure, physical adsorption properties and phase transition properties of mesoporous molecular sieves and MPEG1000/MCM-41 composite phase change materials were characterized by scanning electron microscopy (SEM), BET specific surface area and pore size distribution test and DSC, respectively. The results showed that the surface area of MCM-41 was as high as 769.4 m2/g and MPEG1000 fixed. On the pore and surface of molecular sieve, DSC analysis shows that the enthalpy of phase change gradually increases with the increase of phase change material content in MPEG1000/MCM-41 shape phase change material, the optimum content of MPEG1000 is 65%, and the latent heat of phase change is 83.3 J/g, and the hydroxyl of MPEG1000 has formed hydrogen bonds with the oxygen on the silicon oxygen surface of the mesoporous molecular sieve. The chemical reaction has no new substance, and the SEM test shows that the phase change material is evenly distributed on the hole and surface of the carrier. The experiment of storage / exothermic test shows that the MPEG1000/MCM-41 fixed phase change material has excellent tempering properties. (2) the peg monomethyl ether 1000 is the phase change material, the montmorillonite is the carrier material, the solution intercalation method and the melt intercalation layer are used. The phase change material was inserted into the montmorillonite layer to prepare the MPEG1000/MMT shape phase change material. The morphology, structure and phase transition properties of the two types of phase change materials were characterized by FT-IR, SEM, XRD and DSC. The results showed that the composite shape phase change materials obtained by two different preparation methods had similar morphology and structure. Characteristics: the internal hydroxyl of montmorillonite and the hydroxyl group of polyethylene glycol monomethyl ether formed hydrogen bonds, and MPEG1000 was adsorbed in the MMT lamellar structure by physical action. Under the action of surface tension and interlayer force, MPEG1000 was restricted between the layers of the inorganic MMT carrier and prevented the leakage, and the heat storage performance of the fixed phase change material prepared by the melt intercalation method was superior. The optimum content of polyethylene glycol monomethyl ether is 47%, the phase transition temperature is 36.6? C and the latent heat of phase change is 57.1 J/g; the thermogravimetric analysis of the shape change phase change material has no mass loss under 300? C. The storage / exothermic test shows that the MPEG1000/MMT shape phase change material has a good temperature lag lag. (3) the polypropylene is the matrix and the montmorillonite based phase change material is beneficial. The blend system of polypropylene / montmorillonite based phase change material was prepared by melt blending. The dispersion of phase change materials in the blend system was analyzed by SEM. The phase transformation properties of the blend system were analyzed by DSC and the interaction between the components of the blend system was used by FT-IR. The results showed that the montmorillonite based phase change phase change material was in the PP/MPEG1000/MMT common. The mixing system is distributed evenly, the particle size is about 2~5 mu m, the enthalpy of phase change reaches 21.4 J/g. Compared with PP/MPEG1000 blends, the phase change enthalpy of PP/MPEG1000/MMT blends is 3.6 times. The preparation of the amorphous phase change material can effectively solve the leakage question of MPEG1000 in the melt process of polypropylene, which lays a solid foundation for the melt spinning of polypropylene phase change fiber. The foundation of the set.

【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】：2017
【分類號】：TS102.526;TB34

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 吳晟;李娟;吳永超;李晴;李文;李安寧;凌羽;;定形相變材料的制備及其穩(wěn)定性能的研究[J];廣東化工;2015年03期

2 雷琳;宋貝;;硅藻土負(fù)載型復(fù)合相變材料的制備與表征[J];河南科技;2015年02期

3 顧俠斌;楊文芳;;相變材料在調(diào)溫紡織品中的應(yīng)用現(xiàn)狀及發(fā)展前景[J];遼寧絲綢;2014年01期

4 周近惠;焦曉寧;于賓;;相變材料及其在醫(yī)用敷料上的應(yīng)用[J];產(chǎn)業(yè)用紡織品;2013年02期

5 張海霞;張喜昌;許瑞超;;Outlast腈綸纖維調(diào)溫性能研究[J];棉紡織技術(shù);2012年03期

6 張琳琳;王躍強(qiáng);;智能調(diào)溫纖維綜述[J];印染助劑;2011年01期

7 王毅堅(jiān);;相變蓄能材料在建筑節(jié)能中的應(yīng)用[J];化學(xué)建材;2009年05期

8 趙寶艷;王tD;吳超;;智能調(diào)溫紡織品的種類及應(yīng)用[J];浙江紡織服裝職業(yè)技術(shù)學(xué)院學(xué)報(bào);2009年03期

9 司琴;林鶴鳴;楊雷;吳明華;;相變納米膠囊及其在紡織品上的應(yīng)用[J];浙江理工大學(xué)學(xué)報(bào);2009年04期

10 郭靜;李楠;徐德增;王立巖;;形態(tài)穩(wěn)定相變材料聚乙二醇/聚酰胺6共混物的制備及性能[J];高分子材料科學(xué)與工程;2009年05期

相關(guān)碩士學(xué)位論文 前1條

1 蘇磊靜;石蠟復(fù)合定形相變儲能材料的結(jié)構(gòu)性能研究[D];北京化工大學(xué);2013年

，

本文編號：1782573