紫外光引发甲基丙烯酸甲酯-丙烯酸丁酯共聚制备相变调温织物及其性能
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摘要
采用紫外光原位聚合法,在纺织品上制备以正十四醇为芯材,以甲基丙烯酸甲酯-丙烯酸丁酯共聚物为壁材的相变调温织物。采用场发射扫描电子显微镜、光量热差示扫描量热仪、热重分析仪、精密温度记录仪研究相变调温织物的表面形貌、热性能和调温性能。研究结果表明,当乳化速度为2500 r/min时,共聚物以成膜形式将正十四醇包覆在织物纤维表面,均匀分布在纤维中。测试结果表明,该调温织物的相变调温范围在22～34℃和36～42℃,相变潜热达到17. 24J/g;经70℃加热30 min处理未发生明显泄露,且分解温度比正十四醇提高了20℃左右,热稳定性较好,降温曲线表明具有较好的相变调温性能。
The thermal-regulated fabrics dependent on the phase change were prepared by in-situ polymerization under UV irradiation with tetradecanol as core material and polymethylmethacrylate-polybutyl acrylate as shell materials.Filed emission scanning electron microscopy( FE-SEM),differential scanning calorimetry( DSC),thermal gravimetric analysis( TGA) and precision temperature recorder were applied to characterize the surface morphology,thermal properties,temperature-regulation property. The results indicate that under the emulsification speed of 2500 r/min,tetradecanol is coated by copolymer in film form,and distributed uniformly among fibers. The test results show that the fabrics thermal-regulation range of temperature is 22 ～ 34 ℃ or 36 ～ 42 ℃ and the latent heat of 17. 24 J/g. The phase change materials on the polyester fabrics don't leak after heating for 30 min at 70 ℃. The decomposition temperature is 20 ℃higher than that of tetradecanol. The related fabrics have good heat stability. The cooling curves indicate that polyester fabric performs good temperature-regulation.
The thermal-regulated fabrics dependent on the phase change were prepared by in-situ polymerization under UV irradiation with tetradecanol as core material and polymethylmethacrylate-polybutyl acrylate as shell materials.Filed emission scanning electron microscopy( FE-SEM),differential scanning calorimetry( DSC),thermal gravimetric analysis( TGA) and precision temperature recorder were applied to characterize the surface morphology,thermal properties,temperature-regulation property. The results indicate that under the emulsification speed of 2500 r/min,tetradecanol is coated by copolymer in film form,and distributed uniformly among fibers. The test results show that the fabrics thermal-regulation range of temperature is 22 ～ 34 ℃ or 36 ～ 42 ℃ and the latent heat of 17. 24 J/g. The phase change materials on the polyester fabrics don't leak after heating for 30 min at 70 ℃. The decomposition temperature is 20 ℃higher than that of tetradecanol. The related fabrics have good heat stability. The cooling curves indicate that polyester fabric performs good temperature-regulation.
引文
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[5]李伟,张兴祥,刘彩凤,等.储热调温纤维及织物的制备研究进展[J].高分子材料科学与工程,2010,26(9):163-166.Li W,Zang X X,Liu C F,et al. Research progress on fabrication of thermo-regulated fibers and fabric[J]. Polymer Materials Science&Engineering,2010,26(9):163-166.
[6] Alay S,Alkan C,Gde F. Synthesis and characterization of poly(methyl methacrylate)/n-hexadecane microcapsules using different cross-linkers and their application to some fabrics[J]. Thermochim.Acta,2011,518:1-8.
[7]孙杨,张红明,吕金龙,等.基于可分散聚苯胺的紫外光固化防腐涂料的研究[J].高分子学报,2016(1):105-110.Sun Y,Zhang H M,LüJ L,et al. Studies on ultraviolet cured anticorrosion coatings based on nano-dispersed conducting polyaniline[J]. Acta Polymerica Sinica,2016(1):105-110.
[8]张卫红,范晓东,田威,等.紫外光引发Pickering乳液聚合制备中空复合微球的研究[J].化学学报,2011,69(17):2047-2052.Zhang W H,Fan X D,Tian W,et al. Synthesis of hollow microspheres by pickering emulsion polymerization initiated by ultraviolet light[J]. Acta Chimica Sinica,2011,69(17):2047-2052.
[9] Bahria H,Erbil Y. UV technology for use in textile dyeing and printing:photocured applications[J]. Dyes Pigments,2016,134:442-447.
[10] Ma S,Song G L,Li W,et al. UV irradiaion-initiated MMA polymerization to prepare microcapsules containing phase change paraffin[J]. Sol. Energ. Mat. Sol. C.,2010,94:1643-1647.
[11]黄全国,张凯,杨文彬,等.三聚氰胺-甲醛相变微胶囊制备及性能[J].高分子材料科学与工程,2014,30(3):34-38.Huang Q G,Zhang K,Yang W B,et al. Preparation and property of melamine-formaldehyde phase change microcapsules[J]. Polymer Materials Science&Engineering,2014,30(3):34-38.
[12] Huang X L,Guo J,Gong Y M,et al. In-situ preparation of a shape stable phase change material[J]. Renew. Energ.,2017,108:244-249.
[13]吕刚,缪春燕,姚有为,等.二氧化硅凝胶包覆十二醇微胶囊的制备[J].化工新型材料,2006,34(11):26-28.LüG,Miao C Y,Yao Y W,et al. Preparation of silica gel microcapsules containing lauryl alcohol[J]. New Chemical Materials,2006,34(11):26-28.