CN109097984A - 一种油水分离用超疏水聚酯滤布的制备方法 - Google Patents
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Abstract
本发明公开一种油水分离用超疏水聚酯滤布的制备方法,包括以下操作步骤:(1)将氯化镝、氯化镱加入至水中,混合搅拌均匀后,向其中加入环烷酸钠,混合搅拌均匀,保温处理,制得环烷酸稀土;(2)将环烷酸稀土、纳米二氧化硅、纳米氧化铟加入至无水乙醇中,搅拌均匀后,向其中加入三乙酰氧基乙基硅烷,混合均匀后,保温反应后,制得聚酯滤布涂覆液;(3)将清洗干净的聚酯滤布浸泡在聚酯滤布涂覆液中,浸泡处理,烘干处理,制得超疏水聚酯滤布。本发明提供的油水分离用超疏水聚酯滤布的制备方法,操作简单,成本低廉,制得的超疏水聚酯滤布,表面能极低,水接触角较大,可形成超疏水/超亲油的表面,因而极大地提升了油水分离的效果。
Description
技术领域
本发明属于聚酯滤布制备技术领域,具体涉及一种油水分离用超疏水聚酯滤布的制备方法。
背景技术
聚酯纤维,俗称“涤纶”,是由有机二元酸和二元醇缩聚而成的聚酯经纺丝所得的合成纤维,简称PET纤维,聚酯滤布是由聚酯纤维经编织而成的滤布。目前,海洋溢油污染日趋严重,对海洋生物及环境造成了巨大损害,此外,工业生产及生活中含油废水的排放严重污染水体资源,因此加大对含油废水的分离利用迫在眉睫。但是现有技术中,制得的聚酯滤布,其表面能较高,导致其油水分离效果较差,无法形成超疏水/超亲油的表面。
发明内容
为了解决上述技术问题,本发明提供一种油水分离用超疏水聚酯滤布的制备方法。
本发明是通过以下技术方案实现的。
一种油水分离用超疏水聚酯滤布的制备方法,包括以下操作步骤:
(1)按重量份计,将12-16份氯化镝、10-15份氯化镱加入至130-150份水中,混合搅拌均匀后,向其中加入35-40份环烷酸钠,混合搅拌均匀,加热至88-92℃,保温处理2-3小时后,制得环烷酸稀土;
(2)按重量份计,将9-13份环烷酸稀土、36-40份纳米二氧化硅、5-9份纳米氧化铟加入至950-1000份无水乙醇中,搅拌均匀后,向其中加入3-5份三乙酰氧基乙基硅烷,混合均匀后,将混合物的温度加热至85-90℃,保温反应8-10小时后,制得聚酯滤布涂覆液;
(3)将清洗干净的聚酯滤布浸泡在聚酯滤布涂覆液中,浸泡处理5-7min后,取出,放入烘箱中,烘干处理,制得超疏水聚酯滤布。
具体地,上述步骤(2)中,纳米二氧化硅和纳米氧化铟的平均粒径大小均为30-50nm。
具体地,上述步骤(3)中,烘干处理的温度为105-110℃,烘干处理的时间为4-5小时。
由以上的技术方案可知,本发明的有益效果是:
本发明提供的油水分离用超疏水聚酯滤布的制备方法,操作简单,成本低廉,制得的超疏水聚酯滤布,表面能极低,水接触角较大,可形成超疏水/超亲油的表面,因而极大地提升了油水分离的效果。其中,步骤(1)制得的环烷酸稀土,与聚酯滤布基体的结合力强,其中的稀土元素镝和镱,能在聚酯滤布表面形成疏水层,降低其表面的细腻度,同时其中的环烷酸根,对油的亲和力强,对水的亲和性差,因此有助于聚酯滤布形成超疏水/超亲油的表面,并且还能提升聚酯滤布的力学性能;纳米二氧化硅和纳米氧化铟协同作用后,可以在聚酯滤布表面形成微纳米粗糙凸起效果,进而有效的提升了聚酯滤布的疏水性能,而且同时纳米二氧化硅和纳米氧化铟化学性质的差异,能进一步的降低聚酯滤布的表面能,氧化铟的添加,能有效的防止纳米二氧化硅在烘干的过程中,出现纳米团聚的现象,防止纳米二氧化硅出现失效的情况。
具体实施方式
下面通过具体的实施例对本发明进行详细说明,但这些举例性实施方式的用途和目的仅用来例举本发明,并非对本发明的实际保护范围构成任何形式的任何限定,更非将本发明的保护范围局限于此。
实施例1
一种油水分离用超疏水聚酯滤布的制备方法,包括以下操作步骤:
(1)按重量份计,将12份氯化镝、10份氯化镱加入至130份水中,混合搅拌均匀后,向其中加入35份环烷酸钠,混合搅拌均匀,加热至88℃,保温处理2小时后,制得环烷酸稀土;
(2)按重量份计,将9份环烷酸稀土、36份纳米二氧化硅、5份纳米氧化铟加入至950份无水乙醇中,搅拌均匀后,向其中加入3份三乙酰氧基乙基硅烷,混合均匀后,将混合物的温度加热至85℃,保温反应8小时后,制得聚酯滤布涂覆液;
(3)将清洗干净的聚酯滤布浸泡在聚酯滤布涂覆液中,浸泡处理5min后,取出,放入烘箱中,烘干处理,制得超疏水聚酯滤布。
具体地,上述步骤(2)中,纳米二氧化硅和纳米氧化铟的平均粒径大小均为30nm。
具体地,上述步骤(3)中,烘干处理的温度为105℃,烘干处理的时间为4小时。
实施例2
一种油水分离用超疏水聚酯滤布的制备方法,包括以下操作步骤:
(1)按重量份计,将14份氯化镝、13份氯化镱加入至140份水中,混合搅拌均匀后,向其中加入38份环烷酸钠,混合搅拌均匀,加热至90℃,保温处理2.5小时后,制得环烷酸稀土;
(2)按重量份计,将11份环烷酸稀土、38份纳米二氧化硅、7份纳米氧化铟加入至980份无水乙醇中,搅拌均匀后,向其中加入4份三乙酰氧基乙基硅烷,混合均匀后,将混合物的温度加热至88℃,保温反应9小时后,制得聚酯滤布涂覆液;
(3)将清洗干净的聚酯滤布浸泡在聚酯滤布涂覆液中,浸泡处理6min后,取出,放入烘箱中,烘干处理,制得超疏水聚酯滤布。
具体地,上述步骤(2)中,纳米二氧化硅和纳米氧化铟的平均粒径大小均为40nm。
具体地,上述步骤(3)中,烘干处理的温度为108℃,烘干处理的时间为4.5小时。
实施例3
一种油水分离用超疏水聚酯滤布的制备方法,包括以下操作步骤:
(1)按重量份计,将16份氯化镝、15份氯化镱加入至150份水中,混合搅拌均匀后,向其中加入35-40份环烷酸钠,混合搅拌均匀,加热至92℃,保温处理3小时后,制得环烷酸稀土;
(2)按重量份计,将13份环烷酸稀土、40份纳米二氧化硅、9份纳米氧化铟加入至1000份无水乙醇中,搅拌均匀后,向其中加入5份三乙酰氧基乙基硅烷,混合均匀后,将混合物的温度加热至90℃,保温反应10小时后,制得聚酯滤布涂覆液;
(3)将清洗干净的聚酯滤布浸泡在聚酯滤布涂覆液中,浸泡处理7min后,取出,放入烘箱中,烘干处理,制得超疏水聚酯滤布。
具体地,上述步骤(2)中,纳米二氧化硅和纳米氧化铟的平均粒径大小均为50nm。
具体地,上述步骤(3)中,烘干处理的温度为110℃,烘干处理的时间为5小时。
对比例1
步骤(2)中不添加环烷酸稀土,其余操作步骤与实施例1完全相同。
对比例2
步骤(2)中不添加纳米氧化铟,其余操作步骤与实施例2完全相同。
对比例3
步骤(2)中不添加环烷酸稀土和纳米氧化铟,其余操作步骤与实施例3完全相同。
分别用各是实施例和对比例的方法制得超疏水聚酯滤布,然后测试其表面的水接触角和油接触角,并测试其力学性能,试验结果如表1所示:
表1 超疏水聚酯滤布的性能测试
由表1可知,本实施例制得的超疏水聚酯滤布,具有优异的超疏水/超亲油性能,同时力学性能显著,使用寿命长。
最后说明的是,以上实施例仅用以说明本发明的技术方案而非限制,尽管参照较佳实施例对本发明进行了详细说明,本领域的普通技术人员应当理解,可以对本发明的技术方案进行修改或者等同替换,而不脱离本发明技术方案的宗旨和范围,其均应涵盖在本发明的权利要求范围当中。
Claims (3)
1.一种油水分离用超疏水聚酯滤布的制备方法,其特征在于,包括以下操作步骤:
(1)按重量份计,将12-16份氯化镝、10-15份氯化镱加入至130-150份水中,混合搅拌均匀后,向其中加入35-40份环烷酸钠,混合搅拌均匀,加热至88-92℃,保温处理2-3小时后,制得环烷酸稀土;
(2)按重量份计,将9-13份环烷酸稀土、36-40份纳米二氧化硅、5-9份纳米氧化铟加入至950-1000份无水乙醇中,搅拌均匀后,向其中加入3-5份三乙酰氧基乙基硅烷,混合均匀后,将混合物的温度加热至85-90℃,保温反应8-10小时后,制得聚酯滤布涂覆液;
(3)将清洗干净的聚酯滤布浸泡在聚酯滤布涂覆液中,浸泡处理5-7min后,取出,放入烘箱中,烘干处理,制得超疏水聚酯滤布。
2.根据权利要求1所述的一种油水分离用超疏水聚酯滤布的制备方法,其特征在于,上述步骤(2)中,纳米二氧化硅和纳米氧化铟的平均粒径大小均为30-50nm。
3.根据权利要求1所述的一种油水分离用超疏水聚酯滤布的制备方法,其特征在于,上述步骤(3)中,烘干处理的温度为105-110℃,烘干处理的时间为4-5小时。
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