等离子体诱导丙烯酸接枝改性聚丙烯熔喷非织造材料
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摘要
为提高聚丙烯(PP)熔喷非织造材料表面的亲水性,针对PP表面化学惰性较大的缺点,通过氩气等离子体处理材料表面,然后进行丙烯酸接枝改性,获得了亲水性良好的PP熔喷材料。研究了不同气氛、处理电压和时间对等离子体处理的影响。同时,研究了接枝温度、时间和单体质量分数对丙烯酸接枝处理的影响。采用接触角测量仪、扫描电子显微镜和傅里叶红外光谱仪分别测试了等离子体和接枝处理前后材料亲水性、表面形貌及基团的变化。结果表明,在氩气等离子体处理电压为150 V,处理时间为180 s的条件下处理后,当接枝时间为90 min、接枝温度为60℃、丙烯酸单体质量分数为60%时,样品接触角从140°下降至32°,材料表面亲水性最好。
To improve the hydrophilicity of polypropylene(PP) melt-blown nonwoven materials,the surfaces of materials were treated by argon plasma and then grafted by acrylic acid because of its chemical inertness of PP. The treated nonwoven materials show good hydrophilicity. The influence of different atmospheres,processing voltage and time on plasma treatment were studied. At the same time,the influence of grafting temperature,time,and monomer concentration on acrylic acid grafted treatment were also studied. Using contact angle analyzer,scanning electron microscope(SEM) and Fourier infrared spectroscopy(FT-IR),hydrophilicity,surface morphology and group changes of materials before and after treatment were measured. The results show that under conditions of processing voltage of 150 V,the processing time of 180 s,argon plasma treatment,grafting time of 90 min,grafting temperature of 60 ℃and acrylic monomers concentration of 60%,the sample contact angle decreases from 140° to 32°,and hydrophilicity is the best.
To improve the hydrophilicity of polypropylene(PP) melt-blown nonwoven materials,the surfaces of materials were treated by argon plasma and then grafted by acrylic acid because of its chemical inertness of PP. The treated nonwoven materials show good hydrophilicity. The influence of different atmospheres,processing voltage and time on plasma treatment were studied. At the same time,the influence of grafting temperature,time,and monomer concentration on acrylic acid grafted treatment were also studied. Using contact angle analyzer,scanning electron microscope(SEM) and Fourier infrared spectroscopy(FT-IR),hydrophilicity,surface morphology and group changes of materials before and after treatment were measured. The results show that under conditions of processing voltage of 150 V,the processing time of 180 s,argon plasma treatment,grafting time of 90 min,grafting temperature of 60 ℃and acrylic monomers concentration of 60%,the sample contact angle decreases from 140° to 32°,and hydrophilicity is the best.
引文
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[2]杨娟亚,楼添良,陈雪菲,等.熔喷/针刺复层型透水模板布透排水性能的研究[J].现代纺织技术,2013,21(4):15-18.YANG Juanya,LOU Tianliang,CHEN Xuefei,et al.Research on permeability and drainage performance of melt-blown/needle-punched multilayer type of controlled permeable formwork liner[J].Advanced Textile Technology,2013,21(4):15-18.
[3]张月庆,钱晓明.聚丙烯非织造布亲水改性方法与评价指标[J].产业用纺织品,2011,29(7):33-36.ZHANG Yueqing,QIAN Xiaoming.Hydrophilic modification of PP nonwovens and evaluation index[J].Technical Textiles,2011,29(7):33-36.
[4]程春祖,李鑫,李健,等.聚丙烯亲水改性纤维的表征[J].纺织学报,2009,30(3):13-17.CHENG Chunzu,LI Xin,LI Jian,et al.Characterization of hydrophilic polypropylene fiber[J].Journal of Textile Research,2009,30(3):13-17.
[5]CHAO L,HU C Y,YAN K L,et al.Hydrophilic nonwovens by forcespinningTMof isotactic polypropylene blende[J].Fibers and Polymers,2016,17(10):1646-1656.
[6]唐丽华,任婉婷,李鑫,等.低温等离子体亲水改性聚丙烯熔喷非织造布[J].纺织学报,2010,31(4):30-34.TANG Lihua,REN Wanting,LI Xin,et al.Hydrophilic modification of PP nonwowen fabric cold plasma[J].Journal of Textile Research,2010,31(4):30-34.
[7]JUANG R S,HOU W T,HUANG Y C,et al.Surface hydrophilic modifications on polypropylene membranes by remote methane/oxygen mixture plasma discharges[J].Journal of the Taiwan Institute of Chemical Engineers,2016,65:420-426.
[8]王翱,魏俊富,赵孔银,等.紫外光接枝改性聚丙烯薄膜的研究[J].功能材料,2012,43(20):2851-2854.WANG Ao,WEI Junfu,ZHAO Kongyin,et al.Study on modified polypropylene membrane induced by UVirradiation grafting[J].Functional Materials,2012,43(20):2851-2854.
[9]GUO M L,ZHANG C,XU J J,et al.An efficient,simple and facile strategy to synthesize polypropyleneg-(acrylic acid-co-acrylamide)nonwovens by suspension grafting polymerization and melt-blown technique[J].Fibers and Polymers,2016,17(8):1123-1130.
[10]王振欣,梁小平,王月然,等.低温等离子体改性效果时效性的研究进展[J].纺织学报,2011,32(2):149-154.WANG Zhenxin,LIANG Xiaoping,WANG Yueran,et al.Research progress in ageing effect of surface modification by low temperature plasma[J].Journal of Textile Research,2011,32(2):149-154.
[11]柯勤飞,李云.PBT熔喷非织造布的等离子体接枝改性工艺及性能研究[J].东华大学学报(自然科学版),2000,26(1):32-36.KE Qinfei,LI Yun.Study on plasma modification process on PBT melt-blown nonwoven and their performances[J].Journal of Donghua University(Natural Science),2000,26(1):32-36.