CN107974841A - 聚氨酯纤维空调滤网的制备方法 - Google Patents

聚氨酯纤维空调滤网的制备方法 Download PDF

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CN107974841A
CN107974841A CN201711243356.8A CN201711243356A CN107974841A CN 107974841 A CN107974841 A CN 107974841A CN 201711243356 A CN201711243356 A CN 201711243356A CN 107974841 A CN107974841 A CN 107974841A
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CN107974841B (zh
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鞠俊
李鹤明
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Suzhou Yanjitong New Energy Technology Co ltd
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Abstract

一种聚氨酯纤维空调滤网的制备方法，选用的聚氨酯纤维织物的孔径为301‑311微米，丝径为51‑57微米；聚氨酯纤维空调滤网的制备方法包括以下步骤：1)将石墨烯加入到庚烷中，得到石墨烯悬浮液；在搅拌条件下依次加入0.5‑1L有机硅树脂、0.05‑0.1L聚氨酯预聚体和5‑10g固化剂，制成混合液；2)将聚氨酯纤维织物在十三氟辛基三乙氧基硅烷中浸提后自然晾干；3)将混合液均匀喷涂在聚氨酯纤维织物上，自然晾干得到聚氨酯纤维空调滤网；本发明的聚氨酯纤维空调滤网的制备方法，可以吸附空气中部分粒径小于2微米的颗粒，达到良好的空气净化和过滤效果；同时，利用本法方所制备的聚氨酯纤维空调滤网还有不易滋生细菌，易于清洁，持久耐用的特点。

Description

聚氨酯纤维空调滤网的制备方法
技术领域
本发明属于空气调节器领域，具体涉及一种聚氨酯纤维空调滤网的制备方法。
背景技术
空气调节器，即空调，已经在当下的生产生活中得到广泛的应用；空调滤网是空调对空气净化的第一道屏障，一般为网格状或凹凸式蜂巢结构，常用的空调滤网材质有铝网、不锈钢网、无纺布、纤维网、活性炭滤网等，这些传统材料对空气中杂质的净化吸附性能往往不是十分理想，只能阻挡或者简单吸附一些大颗粒物质，对微小颗粒灰尘无效。石墨烯是近些年来兴起的一种新材料，由单层片状结构的碳原子构成，具有良好的理化性能。而由于石墨烯及其衍生材料具有较大的比表面积、良好的化学稳定性，近年来在环境污染物深度吸附处理方面的应用逐渐引起了人们的关注，例如将石墨烯作为吸附物质运用在处理废水、废气的方法，已经渡过实验室阶段并正在向产业化发展。将石墨烯及其衍生材料利用在空气净化方面，利用石墨烯及其衍生材料的静电吸附力吸附空气中的带电灰尘及微小颗粒，可以取得传统材质的过滤网无法达到的吸附性能，具有良好的应用前景。
发明内容
本发明提供一种聚氨酯纤维空调滤网的制备方法，其中：
聚氨酯纤维空调滤网由聚氨酯纤维织物制成，聚氨酯纤维织物组织为平纹，滤网的经向密度为27.82-28.46根/厘米，纬向密度为27.6-29.1根/厘米，孔径为301-311微米，丝径为51-57微米，所述聚酯纤维强度为4.0～ 5.2CN/dtex，伸长率为18～25％，沸水收缩率为8～12％，条干均匀；
聚氨酯纤维空调滤网的制备方法包括以下步骤：
1)将石墨烯加入到1L庚烷中，超声1-2h，得到石墨烯悬浮液；在搅拌条件下依次加入0.5-1L有机硅树脂、0.05-0.1L聚氨酯预聚体和5-10g固化剂，搅拌均匀，制成混合液；
2)将所述聚氨酯纤维织物在十三氟辛基三乙氧基硅烷中浸提2-3次，每次3-5分钟，沥干，自然固化12-24h；
3)将配制好的混合液均匀喷涂在经步骤2)处理的聚氨酯纤维织物上，自然晾干24-48h，得到聚氨酯纤维空调滤网。
优选的，所述的聚氨酯纤维空调滤网的制备方法，其中：所述氧化石墨烯悬浮液的浓度范围在3～7g/L。
应用本方法制备的聚氨酯纤维空调滤网具有疏水性。
应用本方法制备的聚氨酯纤维空调滤网不应在短时间内频繁弯折，否则易造成空调滤网表面材料疲劳而起皮脱落。
优选的，所述的聚氨酯纤维空调滤网的制备方法，其中：所述固化剂为二乙烯三胺或三乙烯四胺中的一种。
优选的，所述的聚氨酯纤维空调滤网的制备方法，其中：所述混合液在聚氨酯纤维织物上的喷涂量为0.1-0.2L/m2。
优选的，所述的聚氨酯纤维空调滤网的制备方法，其中：所述有机硅树脂为有机硅树脂含量在30-40％的丁醇溶液。
有益效果：
本发明的聚氨酯纤维空调滤网的制备方法，在聚氨酯纤维织物的表面形成一层有静电吸附效果和疏水性能的涂层，可以吸附空气中部分粒径小于2 微米的颗粒，达到良好的空气净化和过滤效果；同时，利用本法方所制备的聚氨酯纤维空调滤网还有不易滋生细菌，易于清洁，持久耐用的特点。
具体实施方式
下面结合具体实施例来对本发明作进一步描述。
实施例1
一种聚氨酯纤维空调滤网的制备方法，包括以下步骤：
聚氨酯纤维空调滤网采用聚氨酯纤维织物制成，聚氨酯纤维织物组织为平纹，滤网的经向密度为27.82根/厘米，纬向密度为27.6根/厘米，孔径为 301-311微米，丝径为57微米，所述聚酯纤维强度为4.0CN/dtex，伸长率为 25％，沸水收缩率为10％，条干均匀；
聚氨酯纤维空调滤网的制备方法包括以下步骤：
1)将石墨烯加入到1L庚烷中，超声2h，得到4g/L的石墨烯悬浮液；在搅拌条件下依次加入1L有机硅树脂、0.1L聚氨酯预聚体和10g固化剂，搅拌均匀，制成混合液；
2)将所述聚氨酯纤维织物在十三氟辛基三乙氧基硅烷中浸提2次，每次 3-5分钟，沥干，自然固化24h；
3)将配制好的混合液均匀喷涂在经步骤2)处理的聚氨酯纤维织物上，自然晾干24h，得到聚氨酯纤维空调滤网。
所述石墨烯悬浮液的浓度范围为4g/L，在实践中发现，石墨烯悬浮液的浓度大于8g/L时，吸附效果随浓度的增加不再明显。
采用特定孔径的聚氨酯纤维织物，因其性能稳定，能很好的配合石墨烯达到良好的静电吸附效果。
应用本方法制备的聚氨酯纤维空调滤网具有疏水性，可使滤网表面所吸附的灰尘易于形成胶团，即便被空调的强风从空调滤网表面再次吹起，也会因为其粒径和质量较大而落于地面，不会形成浮尘。
应用本方法制备的聚氨酯纤维空调滤网不应在短时间内频繁弯折，否则易造成空调滤网表面材料疲劳而起皮脱落。
所述固化剂为三乙烯四胺，在实践中发现，只需少量添加0.3-0.5％的固化剂即可起到有效的加速固化作用。
所述混合液在空调滤网上的喷涂量为0.15L/m2，本发明中所喷涂的混合液造价较高，虽然加大喷涂量可以取得更好的吸附效果，但仍以0.1-0.2L/m2的喷涂量所达到的过滤效果和成本比为最佳。
所述有机硅树脂为有机硅树脂含量在30％的丁醇溶液。
实施例2
聚氨酯纤维空调滤网采用聚氨酯纤维织物制成，聚氨酯纤维织物组织为平纹，滤网的经向密度为28.46根/厘米，纬向密度为28根/厘米，孔径为 301-311微米，丝径为51-57微米，所述聚酯纤维强度为5CN/dtex，伸长率为20％，沸水收缩率为8％，条干均匀；
聚氨酯纤维空调滤网的制备方法包括以下步骤：
1)将石墨烯加入到1L庚烷中，超声2h，得到4g/L的石墨烯悬浮液；在搅拌条件下依次加入0.5L有机硅树脂、0.05L聚氨酯预聚体和5g固化剂，搅拌均匀，制成混合液；
2)将所述聚氨酯纤维织物在十三氟辛基三乙氧基硅烷中浸提2次，每次 3分钟，沥干，自然固化24h；
3)将配制好的混合液均匀喷涂在经步骤2)处理的聚氨酯纤维织物上，自然晾干48h，得到聚氨酯纤维空调滤网。
所述石墨烯悬浮液的浓度范围在5g/L。
所述固化剂为二乙烯三胺。
所述混合液在聚氨酯纤维织物上的喷涂量为0.2L/m2。
所述有机硅树脂为有机硅树脂含量在40％的丁醇溶液。
对比例1
选用实施例1、2方法所制备的聚氨酯纤维空调滤网，分别称其为A滤网、 B滤网，另取市售的艾德加牌AD-D16型空调滤网、安克林牌高效静电空调滤网，分别称为C滤网和D滤网，将四张滤网称重记录后，分别安装在四台新的奥克斯KFR-35GW/BpTYC1+1型空调上，该类型空调为1.5匹变频挂机空调，启动空调，将空调制热温度都设置为24℃，出风量都为最大，30天后将空调滤网取下称重记录；需要说明的是，实验地点为江苏省某地开发区，周围三公里以内有火力发电厂、化工厂和多家具有小型锅炉的企业，空气中粉尘含量较高；实验开始时间为11月初，四台空调分别并排安装于当地某公司仓库内；所得数据如下：
实验后质量减去实验前质量即为吸附粉尘质量，在其他实验条件相同的情况下，吸附粉尘的质量B>A>D>C,由此可见，本发明法方所制备的聚氨酯纤维空调滤网的吸附效果明显优于普通空调滤网和普通带静电吸附功能的空调滤网。
对比例2
在实施例1的基础上，选用实施例1、2方法所制备的聚氨酯纤维空调滤网作为实验对象，在30天实验期间内，每隔3天将空调滤网小心取下称重，然后再装回空调，继续测试，所得结果如下：
称重时间(自实验开始天数) A滤网质量(g) 与上次称重质量差(g)
0 18.212 0
3 18.923 0.711
6 19.424 0.501
9 19.886 0.462
12 20.317 0.431
15 20.682 0.365
18 21.025 0.343
21 21.329 0.304
24 21.619 0.290
27 21.896 0.277
30 22.158 0.262
A滤网质量增加幅度随着时间的增加而减小，由此可见，在空气中粉尘颗粒较多的地区，本发明方法所制备的聚氨酯纤维空调滤网会随着吸附粉尘量的增加而导致空气净化过滤能力减弱，所以，建议在空气中粉尘颗粒较多的地方每隔2-3个月清洗一次本发明方法所制备的聚氨酯纤维空调滤网。
尽管本发明的实施方案已公开如上，但其并不仅仅限于说明书和实施方式中所列运用，它完全可以被适用于各种适合本发明的领域，对于熟悉本领域的人员而言，可容易地实现另外的修改，因此在不背离权利要求及等同范围所限定的一般概念下，本发明并不限于特定的细节和这里示出与描述的实施例。

Claims (7)

1.一种聚氨酯纤维空调滤网的制备方法，其特征在于：
聚氨酯纤维空调滤网由聚氨酯纤维织物制成，聚氨酯纤维织物组织为平纹，滤网的经向密度为27.82-28.46根/厘米，纬向密度为27.6-29.1根/厘米，孔径为301-311微米，丝径为51-57微米，所述聚酯纤维强度为4.0～5.2CN/dtex，伸长率为18～25％，沸水收缩率为8～12％，条干均匀；
聚氨酯纤维空调滤网的制备方法包括以下步骤：
1)将石墨烯加入到1L庚烷中，超声1-2h，得到石墨烯悬浮液；在搅拌条件下依次加入0.5-1L有机硅树脂、0.05-0.1L聚氨酯预聚体和5-10g固化剂，搅拌均匀，制成混合液；
2)将所述聚氨酯纤维织物在十三氟辛基三乙氧基硅烷中浸提2-3次，每次3-5分钟，沥干，自然固化12-24h；
3)将配制好的混合液均匀喷涂在经步骤2)处理的聚氨酯纤维织物上，自然晾干24-48h，得到聚氨酯纤维空调滤网。
2.如权利要求1所述的聚氨酯纤维空调滤网的制备方法，其特征在于：所述氧化石墨烯悬浮液的浓度范围在3～7g/L。
3.如权利要求1所述的聚氨酯纤维空调滤网的制备方法，其特征在于：应用本方法制备的聚氨酯纤维空调滤网具有疏水性。
4.如权利要求5所述的聚氨酯纤维空调滤网的制备方法，其特征在于：应用本方法制备的聚氨酯纤维空调滤网不应在短时间内频繁弯折，否则易造成空调滤网表面材料疲劳而起皮脱落。
5.如权利要求1所述的聚氨酯纤维空调滤网的制备方法，其特征在于：所述固化剂为二乙烯三胺或三乙烯四胺中的一种。
6.如权利要求1所述的聚氨酯纤维空调滤网的制备方法，其特征在于：所述混合液在聚氨酯纤维织物上的喷涂量为0.1-0.2L/m2。
7.如权利要求1所述的聚氨酯纤维空调滤网的制备方法，其特征在于：所述有机硅树脂为有机硅树脂含量在30-40％的丁醇溶液。
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