CN113926437B - 一种可降解吸附VOCs材料的制备方法及其应用 - Google Patents
一种可降解吸附VOCs材料的制备方法及其应用 Download PDFInfo
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Abstract
本发明公开一种可降解吸附VOCs材料的制备方法,包括以下步骤:(1)共混物的制备:将PLA改性树脂颗粒、EVA、石墨烯粉、纳米二氧化钛充分混合均匀、用双螺杆挤出机造粒、干燥,放入干燥器干燥后备用;(2)皮芯结构纺丝;(3)加弹处理:将步骤(2)中加工所得的共混纺丝物料进行加弹加工得到高性能化学纤维,加弹加工过程中,控制生产速度为250‑300m/min,I罗拉牵伸比为1.4,III罗拉欠喂率为96%,黑辊欠喂率为96%,交叉角为10度,假捻器D/Y比为1.68,上油转速为4.0;上热箱温度为120‑140℃,下热箱温度为110‑130℃;(4)滤料加工。采用本发明公开的技术方案成功得到一种降解吸附VOCs性能优越的滤料。
Description
技术领域
本发明涉及可降解吸附VOCs材料制备领域,尤其涉及的是一种可降解吸附VOCs材料的制备方法及其应用。
背景技术
室外VOCs主要来源于石油、煤等燃料的燃烧、化工、车辆尾气的排放等。室内VOCs主要来源于室内装饰材料,比如墙壁涂料、家具油漆等的使用,都会造成VOCs气体的挥发,降低室内空气质量。
随着人们生活质量的提高和环保意识的增强,能源消耗所造成的环境污染问题也越来越得到社会各界的重视,尤其是家庭装修、汽车内饰等使用各种装饰装修材料,释放多种有机化合物,如苯、甲苯、二甲苯等,长期工作或者生活在这种环境下,对人们健康造成了严重的威胁。
基于此,关于降解VOCs的技术改进多有公开报道,如中国专利申请号为:CN202110846757.2,公开一种微波激励紫外光催化降解VOCs与杀菌一体化装置,该专利中公开了如下技术方案:
微波激励紫外光催化降解VOCs与杀菌一体化装置,微波激励紫外光催化降解VOCs与杀菌一体化装置包括:箱体、微波发射装置、紫外装置和催化剂装置,其中,箱体相对的两端设置有进气口和出气口,微波发射装置连接在所述箱体的顶部,紫外装置设置在所述箱体内部,所述紫外装置能够在微波的作用下发射出185nm和254nm的紫外光,催化剂装置设置在所述箱体内部,所述催化剂装置用于在微波的作用下降解VOCs。通过微波紫外和催化剂的协同作用,从而实现VOCs的降解和杀菌目的。
显然,现有技术包括上述专利公开的技术方案采用的是微波紫外催化降解方式,该方式的弊端在于:降解下利率低下,且使用范围狭隘,普用性差。
发明内容
本发明所要解决的技术问题在于提供了一种可降解吸附VOCs材料的制备方法。
本发明是通过以下技术方案解决上述技术问题的:
一种可降解吸附VOCs材料的制备方法,包括以下步骤:
(1)共混物的制备:
将PLA改性树脂颗粒、EVA、石墨烯粉、纳米二氧化钛充分混合均匀、用双螺杆挤出机造粒、干燥,放入干燥器干燥后备用;
(2)皮芯结构纺丝:
将步骤(1)中干燥后的物料进行共混纺丝,纺丝过程中,控制芯层进料口温度为200℃,皮层进料口温度190℃;螺杆温度190℃;计量泵压力3.6MPa;卷绕速度:3000m/min;
(3)加弹处理:
将步骤(2)中加工所得的共混纺丝物料进行加弹加工得到高性能化学纤维,加弹加工过程中,控制生产速度为250-300m/min,I罗拉牵伸比为1.4,III罗拉欠喂率为96%,黑辊欠喂率为96%,交叉角为10度,假捻器D/Y比为1.68,上油转速为4.0;上热箱温度为120-140℃,下热箱温度为110-130℃;
(4)滤料加工:
将步骤(3)中加弹处理后的高性能化学纤维加工成滤料。
优选地,所述步骤(1)中石墨烯粉占共混物总量的百分比为2.5-6.25%。
优选地,所述步骤(1)中PLA改性树脂颗粒为:3.35kg、乙烯-醋酸乙烯共聚物为:0.5kg、石墨烯粉末为:0.1kg、抗氧剂为:35g、硬脂酸为:12.5g,纳米二氧化钛TiO2为:8.1g。
优选地,所述步骤(1)中PLA改性树脂颗粒为:3.35kg、乙烯-醋酸乙烯共聚物为:0.5kg、石墨烯粉末为:0.15kg、抗氧剂为:35g、硬脂酸为:12.5g,纳米二氧化钛TiO2为:8.1g。
优选地,所述步骤(1)中PLA改性树脂颗粒为:4.7kg、乙烯-醋酸乙烯共聚物为:1.0kg、石墨烯粉末为:0.3kg、抗氧剂为:28g、硬脂酸为:25g,纳米二氧化钛TiO2为:12.1g。
优选地,所述步骤(1)中PLA改性树脂颗粒为:4.7kg、乙烯-醋酸乙烯共聚物为:1.0kg、石墨烯粉末为:0.39kg、抗氧剂为:28.5g、硬脂酸为:25g,纳米二氧化钛TiO2为:12.1g。
优选地,所述步骤(4)中滤料加工的方法如下:
将涤纶纤维、丙纶纤维按质量比例1:1进行喂入、开松混合、梳理铺网,得到第一混合层纤维网;
将高性能化学纤维进行开松、混合、梳理铺网得到第二混合层纤维网;
将第一纤维混合层、基布、第二混合纤维层进行针刺固结,经过烧毛、压光,制得半成品滤料;
将十二烷基苯磺酸钠、石墨烯碳纳米管、二氧化硅与水、粘合剂配制成整理液,再经超声预处理15min,制备成均匀的喷涂液;其中,喷涂液质量占滤料总重量的15%—35%。
采用喷涂装置,在第一纤维层表面进行喷涂,控制喷涂速度8m/min。
对喷涂滤料进行热定型处理;
其中热定型区间温度如下:
一区170℃、二区170℃、三区175℃、四区180℃、五区180℃;
经过热定型处理后得到滤料。
优选地,所述十二烷基苯磺酸钠、石墨烯碳纳米管、二氧化硅、自来水、粘合剂的质量比为:2:5:3:40:50。
优选地,所述十二烷基苯磺酸钠、石墨烯碳纳米管、二氧化硅、自来水、粘合剂的质量比为:2:7:1:40:50。
本发明同时公开上述可降解吸附VOCs材料的制备方法在制备滤料中的应用。
本发明相比现有技术具有以下优点:
本发明公开一种可降解吸附VOCs材料的制备方法,在制备方法中,本发明基于熔纺与加弹技术,率先制备出高吸附可降解性PLA/EVA/GO/TIO2共混纤维;其力学性能良好,二甲苯等VPCs吸附效果优,而且吸附后光催化氧化效果明显,可以将VOCs分解为水和二氧化碳,实现循环再生无公害,绿色环保,可用于家具和化学建材包装材料,以及室内和交通工具内饰材料。
附图说明
图1是本发明对比实施例中滤料的结构示意图。
具体实施方式
下面对本发明的实施例作详细说明,本实施例在以本发明技术方案为前提下进行实施,给出了详细的实施方式和具体的操作过程,但本发明的保护范围不限于下述的实施例。
实施例1
一种可降解吸附VOCs材料的制备方法,包括以下步骤:
(1)共混物的制备:
将PLA改性树脂颗粒、EVA、石墨烯粉、纳米二氧化钛充分混合均匀、用双螺杆挤出机造粒、干燥,放入干燥器干燥后备用;
其中,PLA改性树脂颗粒为:3.35kg、乙烯-醋酸乙烯共聚物为:0.5kg、石墨烯粉末为:0.15kg、抗氧剂为:35g、硬脂酸为:12.5g,纳米二氧化钛TiO2为:8.1g。
(2)皮芯结构纺丝:
将步骤(1)中干燥后的物料进行共混纺丝,纺丝过程中,控制芯层进料口温度为200℃,皮层进料口温度190℃;螺杆温度190℃;计量泵压力3.6MPa;卷绕速度:3000m/min;
(3)加弹处理:
将步骤(2)中加工所得的共混纺丝物料进行加弹加工得到高性能化学纤维,加弹加工过程中,控制生产速度为280m/min,I罗拉牵伸比为1.4,III罗拉欠喂率为96%,黑辊欠喂率为96%,交叉角为10度,假捻器D/Y比为1.68,上油转速为4.0;上热箱温度为135℃,下热箱温度为120℃;
(4)滤料加工:
将步骤(3)中加弹处理后的高性能化学纤维加工成滤料,滤料加工的方法如下:
将涤纶纤维、丙纶纤维按质量比例1:1进行喂入、开松混合、梳理铺网,得到第一混合层纤维网;
将高性能化学纤维进行开松、混合、梳理铺网得到第二混合层纤维网;
将第一纤维混合层、基布、第二混合纤维层进行针刺固结,经过烧毛、压光,制得半成品滤料;
将十二烷基苯磺酸钠、石墨烯碳纳米管、二氧化硅与水、粘合剂配制成整理液,再经超声预处理15min,制备成均匀的喷涂液;其中,喷涂液质量占滤料总重量的15%。
采用喷涂装置,在第一纤维层表面进行喷涂,控制喷涂速度8m/min。
对喷涂滤料进行热定型处理;
其中热定型区间温度如下:
一区170℃、二区170℃、三区175℃、四区180℃、五区180℃;
经过热定型处理后得到滤料。
实施例2
一种可降解吸附VOCs材料的制备方法,包括以下步骤:
(1)共混物的制备:
将PLA改性树脂颗粒、EVA、石墨烯粉、纳米二氧化钛充分混合均匀、用双螺杆挤出机造粒、干燥,放入干燥器干燥后备用;
其中,PLA改性树脂颗粒为:3.35kg、乙烯-醋酸乙烯共聚物为:0.5kg、石墨烯粉末为:0.15kg、抗氧剂为:35g、硬脂酸为:12.5g,纳米二氧化钛TiO2为:8.1g。
(2)皮芯结构纺丝:
将步骤(1)中干燥后的物料进行共混纺丝,纺丝过程中,控制芯层进料口温度为200℃,皮层进料口温度190℃;螺杆温度190℃;计量泵压力3.6MPa;卷绕速度:3000m/min;
(3)加弹处理:
将步骤(2)中加工所得的共混纺丝物料进行加弹加工得到高性能化学纤维,加弹加工过程中,控制生产速度为250m/min,I罗拉牵伸比为1.4,III罗拉欠喂率为96%,黑辊欠喂率为96%,交叉角为10度,假捻器D/Y比为1.68,上油转速为4.0;上热箱温度为140℃,下热箱温度为130℃;
(4)滤料加工:
将步骤(3)中加弹处理后的高性能化学纤维加工成滤料,滤料加工的方法如下:
将涤纶纤维、丙纶纤维按质量比例1:1进行喂入、开松混合、梳理铺网,得到第一混合层纤维网;
将高性能化学纤维进行开松、混合、梳理铺网得到第二混合层纤维网;
将第一纤维混合层、基布、第二混合纤维层进行针刺固结,经过烧毛、压光,制得半成品滤料;
将十二烷基苯磺酸钠、石墨烯碳纳米管、二氧化硅与水、粘合剂配制成整理液,再经超声预处理15min,制备成均匀的喷涂液;其中,喷涂液质量占滤料总重量的35%。其中,十二烷基苯磺酸钠、石墨烯碳纳米管、二氧化硅、自来水、粘合剂的质量比为:2:7:1:40:50。
采用喷涂装置,在第一纤维层表面进行喷涂,控制喷涂速度8m/min。
对喷涂滤料进行热定型处理;
其中热定型区间温度如下:
一区170℃、二区170℃、三区175℃、四区180℃、五区180℃;
经过热定型处理后得到滤料。
实施例3
一种可降解吸附VOCs材料的制备方法,包括以下步骤:
(1)共混物的制备:
将PLA改性树脂颗粒、EVA、石墨烯粉、纳米二氧化钛充分混合均匀、用双螺杆挤出机造粒、干燥,放入干燥器干燥后备用;
其中,PLA改性树脂颗粒为:4.7kg、乙烯-醋酸乙烯共聚物为:1.0kg、石墨烯粉末为:0.3kg、抗氧剂为:28g、硬脂酸为:25g,纳米二氧化钛TiO2为:12.1g。
(2)皮芯结构纺丝:
将步骤(1)中干燥后的物料进行共混纺丝,纺丝过程中,控制芯层进料口温度为200℃,皮层进料口温度190℃;螺杆温度190℃;计量泵压力3.6MPa;卷绕速度:3000m/min;
(3)加弹处理:
将步骤(2)中加工所得的共混纺丝物料进行加弹加工得到高性能化学纤维,加弹加工过程中,控制生产速度为280m/min,I罗拉牵伸比为1.4,III罗拉欠喂率为96%,黑辊欠喂率为96%,交叉角为10度,假捻器D/Y比为1.68,上油转速为4.0;上热箱温度为130℃,下热箱温度为120℃;
(4)滤料加工:
将步骤(3)中加弹处理后的高性能化学纤维加工成滤料,滤料加工的方法如下:
将涤纶纤维、丙纶纤维按质量比例1:1进行喂入、开松混合、梳理铺网,得到第一混合层纤维网;
将高性能化学纤维进行开松、混合、梳理铺网得到第二混合层纤维网;
将第一纤维混合层、基布、第二混合纤维层进行针刺固结,经过烧毛、压光,制得半成品滤料;
将十二烷基苯磺酸钠、石墨烯碳纳米管、二氧化硅与水、粘合剂配制成整理液,再经超声预处理15min,制备成均匀的喷涂液;其中,喷涂液质量占滤料总重量的20%。其中,十二烷基苯磺酸钠、石墨烯碳纳米管、二氧化硅、自来水、粘合剂的质量比为:2:7:1:40:50。
采用喷涂装置,在第一纤维层表面进行喷涂,控制喷涂速度8m/min。
对喷涂滤料进行热定型处理;
其中热定型区间温度如下:
一区170℃、二区170℃、三区175℃、四区180℃、五区180℃;
经过热定型处理后得到滤料。
实施例4
一种可降解吸附VOCs材料的制备方法,包括以下步骤:
(1)共混物的制备:
将PLA改性树脂颗粒、EVA、石墨烯粉、纳米二氧化钛充分混合均匀、用双螺杆挤出机造粒、干燥,放入干燥器干燥后备用;
其中,步骤(1)中PLA改性树脂颗粒为:4.7kg、乙烯-醋酸乙烯共聚物为:1.0kg、石墨烯粉末为:0.39kg、抗氧剂为:28.5g、硬脂酸为:25g,纳米二氧化钛TiO2为:12.1g。
(2)皮芯结构纺丝:
将步骤(1)中干燥后的物料进行共混纺丝,纺丝过程中,控制芯层进料口温度为200℃,皮层进料口温度190℃;螺杆温度190℃;计量泵压力3.6MPa;卷绕速度:3000m/min;
(3)加弹处理:
将步骤(2)中加工所得的共混纺丝物料进行加弹加工得到高性能化学纤维,加弹加工过程中,控制生产速度为300m/min,I罗拉牵伸比为1.4,III罗拉欠喂率为96%,黑辊欠喂率为96%,交叉角为10度,假捻器D/Y比为1.68,上油转速为4.0;上热箱温度为135℃,下热箱温度为125℃;
(4)滤料加工:
将步骤(3)中加弹处理后的高性能化学纤维加工成滤料,滤料加工的方法如下:
将涤纶纤维、丙纶纤维按质量比例1:1进行喂入、开松混合、梳理铺网,得到第一混合层纤维网;
将高性能化学纤维进行开松、混合、梳理铺网得到第二混合层纤维网;
将第一纤维混合层、基布、第二混合纤维层进行针刺固结,经过烧毛、压光,制得半成品滤料;
将十二烷基苯磺酸钠、石墨烯碳纳米管、二氧化硅与水、粘合剂配制成整理液,再经超声预处理15min,制备成均匀的喷涂液;其中,喷涂液质量占滤料总重量的25%。
其中,十二烷基苯磺酸钠、石墨烯碳纳米管、二氧化硅、自来水、粘合剂的质量比为:2:7:1:40:50。
采用喷涂装置,在第一纤维层表面进行喷涂,控制喷涂速度8m/min。
对喷涂滤料进行热定型处理;
其中热定型区间温度如下:
一区170℃、二区170℃、三区175℃、四区180℃、五区180℃;
经过热定型处理后得到滤料。
对比实施例;
将本发明实施例1-4制备得到的高性能化学纤维进行理化性能测试,测试结果如表1所示:
表1性能测试
由表1可知:
本发明制备得到的纤维理化性能优越。
采用上述高能纤维按照各实施例步骤(4)加工得到滤料,如图1所示,滤料中,包括位于顶层的微纳材料疏水层1,位于微纳材料疏水层1下方的涤纶、丙纶混合纤维层2、位于涤纶、丙纶混合纤维层2下方的基布层3,位于基布层3底部的混合纤维层4。
以上所述仅为本发明的较佳实施例而已,并不用以限制本发明,凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等,均应包含在本发明的保护范围之内。
Claims (10)
1.一种可降解吸附VOCs材料的制备方法,其特征在于,包括以下步骤:
(1)共混物的制备:
将PLA改性树脂颗粒、EVA、石墨烯粉、纳米二氧化钛充分混合均匀、用双螺杆挤出机造粒、干燥,放入干燥器干燥后备用;
(2)皮芯结构纺丝:
将步骤(1)中干燥后的物料进行共混纺丝,纺丝过程中,控制芯层进料口温度为200℃,皮层进料口温度190℃;螺杆温度190℃;计量泵压力3.6MPa;卷绕速度:3000m/min;
(3)加弹处理:
将步骤(2)中加工所得的共混纺丝物料进行加弹加工得到高性能化学纤维,加弹加工过程中,控制生产速度为250-300m/min,I罗拉牵伸比为1.4,III罗拉欠喂率为96%,黑辊欠喂率为96%,交叉角为10度,假捻器D/Y比为1.68,上油转速为4.0;上热箱温度为120-140℃,下热箱温度为110-130℃;
(4)滤料加工:
将步骤(3)中加弹处理后的高性能化学纤维加工成滤料。
2.根据权利要求1所述的可降解吸附VOCs材料的制备方法,其特征在于,所述步骤(1)中石墨烯粉占共混物总量的百分比为2.5-6.25%。
3.根据权利要求2所述的可降解吸附VOCs材料的制备方法,其特征在于,所述步骤(1)中PLA改性树脂颗粒为:3.35kg、乙烯-醋酸乙烯共聚物为:0.5kg、石墨烯粉末为:0.1kg、抗氧剂为:35g、硬脂酸为:12.5g,纳米二氧化钛TiO2为:8.1g。
4.根据权利要求2所述的可降解吸附VOCs材料的制备方法,其特征在于,所述步骤(1)中PLA改性树脂颗粒为:3.35kg、乙烯-醋酸乙烯共聚物为:0.5kg、石墨烯粉末为:0.15kg、抗氧剂为:35g、硬脂酸为:12.5g,纳米二氧化钛TiO2为:8.1g。
5.根据权利要求2所述的可降解吸附VOCs材料的制备方法,其特征在于,所述步骤(1)中PLA改性树脂颗粒为:4.7kg、乙烯-醋酸乙烯共聚物为:1.0kg、石墨烯粉末为:0.3kg、抗氧剂为:28g、硬脂酸为:25g,纳米二氧化钛TiO2为:12.1g。
6.根据权利要求2所述的可降解吸附VOCs材料的制备方法,其特征在于,所述步骤(1)中PLA改性树脂颗粒为:4.7kg、乙烯-醋酸乙烯共聚物为:1.0kg、石墨烯粉末为:0.39kg、抗氧剂为:28.5g、硬脂酸为:25g,纳米二氧化钛TiO2为:12.1g。
7.根据权利要求2所述的可降解吸附VOCs材料的制备方法,其特征在于,所述步骤(4)中滤料加工的方法如下:
将涤纶纤维、丙纶纤维按质量比例1:1进行喂入、开松混合、梳理铺网,得到第一混合层纤维网;
将高性能化学纤维进行开松、混合、梳理铺网得到第二混合层纤维网;
将第一纤维混合层、基布、第二混合纤维层进行针刺固结,经过烧毛、压光,制得半成品滤料;
将十二烷基苯磺酸钠、石墨烯碳纳米管、二氧化硅与水、粘合剂配制成整理液,再经超声预处理15min,制备成均匀的喷涂液;其中,喷涂液质量占滤料总重量的15%—35%;
采用喷涂装置,在第一纤维层表面进行喷涂,控制喷涂速度8m/min;
对喷涂滤料进行热定型处理;
其中热定型区间温度如下:
一区170℃、二区170℃、三区175℃、四区180℃、五区180℃;
经过热定型处理后得到滤料。
8.根据权利要求7所述的可降解吸附VOCs材料的制备方法,其特征在于,所述十二烷基苯磺酸钠、石墨烯碳纳米管、二氧化硅、自来水、粘合剂的质量比为:2:5:3:40:50。
9.根据权利要求7所述的可降解吸附VOCs材料的制备方法,其特征在于,所述十二烷基苯磺酸钠、石墨烯碳纳米管、二氧化硅、自来水、粘合剂的质量比为:2:7:1:40:50。
10.一种采用如权利要求1-9任意一项所述可降解吸附VOCs材料的制备方法在制备滤料中的应用。
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