CN103572584A - Preparation method of modified nano titanium dioxide finishing agent with uvioresistant and self-cleaning double effects - Google Patents
Preparation method of modified nano titanium dioxide finishing agent with uvioresistant and self-cleaning double effects Download PDFInfo
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Abstract
本发明涉及金红石型纳米二氧化钛对涤棉织物具有紫外吸收和自清洁性能的整理方法。利用有机硅烷偶联剂(KH560)对金红石型纳米TiO2进行表面改性，主要分两步：(1)将金红石型纳米二氧化钛粉末加入乙醇中，配成质量浓度为1-5％的乙醇溶液，采用超声或机械搅拌或微波-超声匀化处理一段时间使纳米二氧化钛粉末在乙醇中均匀分散。(2)按二氧化钛质量1％-5％的偶联剂加入乙醇溶液中，调节PH至中性，搅拌均匀，在恒温70-90℃反应1-3h，得到改性后的纳米二氧化钛整理液。改性后纳米TiO2对涤棉织物进行整理，经过整理并染色的织物置于具有特定紫外波长的紫外灯照射一定时间，测得整理后织物具有抗紫外和自清洁的性能。本发明的制备方法简单，操作实用性强，织物可同时获得抗紫外和自清洁性能，并且纳米二氧化钛对织物的强力损失有保护的作用。
The invention relates to a finishing method for rutile nano-titanium dioxide with ultraviolet absorption and self-cleaning properties on polyester-cotton fabrics. Utilize organosilane coupling agent (KH560) to carry out surface modification to rutile nano-TiO2, mainly divide two steps: (1) add rutile-type nano-titanium dioxide powder in ethanol, be made into the ethanol solution that mass concentration is 1-5%, Ultrasonic or mechanical stirring or microwave-ultrasonic homogenization is used for a period of time to uniformly disperse the nano titanium dioxide powder in ethanol. (2) Add 1%-5% coupling agent according to the mass of titanium dioxide into the ethanol solution, adjust the pH to neutral, stir evenly, and react at a constant temperature of 70-90° C. for 1-3 hours to obtain the modified nano-titanium dioxide finishing solution. The modified nano-TiO2 was used to finish the polyester-cotton fabric, and the finished and dyed fabric was irradiated with an ultraviolet lamp with a specific ultraviolet wavelength for a certain period of time. The preparation method of the invention is simple, the operation is strong, the fabric can simultaneously obtain the anti-ultraviolet and self-cleaning properties, and the nano-titanium dioxide has a protective effect on the strength loss of the fabric.
Description
Technical field
The present invention relates to the method for sorting that kind of rutile type nano titanic oxide application polyester-cotton fabric has uvioresistant and automatically cleaning effect, belong to material science.
Background technology
Titanium dioxide good stability, the semiconductor property that catalytic activity is high, cheap and easy to get, nontoxic and excellent, having broad application prospects aspect the energy and environment.The crystalline phase of titanium dioxide mainly comprises that anatase, brockite, rutile and titanium dioxide B. rutile-type are crystal habits the most stable in titanium dioxide, its compact structure, hardness, density, thermal conductivity, dielectric constant and the index of refraction higher than having with Anatase, have compared with high ultraviolet shielded property and weatherability. and nano titanium oxide has that particle diameter is little, specific area is large, magnetic is strong, photocatalysis, absorbent properties are good, absorb the advantages such as ultraviolet ability is strong, surface-activity is large, thermal conductance is good, good dispersion, made effect suspension stabilization.
Appropriate ultraviolet ray is irradiated and is contributed to health, but excessive ultraviolet ray can injure human body, accelerates skin aging and can cause various skin problems even to cause cutaneum carcinoma.Along with the discharge capacity of global carbon dioxide increases severely, in atmosphere, ozone layer is increasingly thin, and the ultraviolet intensity that arrives ground is increased day by day, and the textiles with ultraviolet protection function is also more and more subject to consumer's the attention with researcher of liking.And fabric has permanent uv absorption property for fabric, need titanium dioxide and fabric chemical bond, need to carry out surface modification to titanium dioxide, many researchers adopt silane coupler to titania modified, and the present invention adopts silane coupler to titania modified. and the fabric after modification not only has uv absorption property and also has self-cleaning performance.
Summary of the invention
Nano TiO 2 has very strong scattering and absorbs ultraviolet ability, especially harmful middle long wave ultraviolet UVA, UVB (320-400nm, absorbability 290-320nm) is very strong, the first-selection that fabric has uvioresistant performance is applying nano titanium dioxide, but the invention simultaneously with self-cleaning performance does not have.
Rutile type nano titanic oxide has the method for sorting of UV absorption and self-cleaning performance to polyester-cotton fabric, shirtsleeve operation method is provided, significant effect, and practicality is extremely strong, is beneficial to suitability for industrialized production.
The preparation method with the modification rutile type nano titanic oxide fabric finishing agent of uvioresistant and automatically cleaning double effects is characterized in that finishing agent makes through the following step:
(1) rutile type nano titanic oxide powder is added in ethanol, be made into the ethanolic solution that mass concentration is 1-5%, adopt ultrasonic or mechanical agitation or microwave-ultrasonic homogenize to process a period of time and make nano titanium dioxide powder dispersed in ethanol.
(2) by the coupling agent of titanium dioxide quality 1%-5%, add in (1) middle ethanolic solution, regulate PH to neutral, stir, at constant temperature 70-90 ℃ of reaction 1-3h, obtain the nano titanium dioxide finishing liquid after modification.
The effect of finishing agent is adopted test with the following method:
1. surface sweeping Electronic Speculum (SEM)
2. colour photometer
Accompanying drawing explanation
Fig. 1 is the comparison diagram that rutile titanium dioxide arranges the surface sweeping Electronic Speculum (SEM) of polyester-cotton fabric, Fig. 1 (a) is not for arranging surface sweeping Electronic Speculum (SEM) figure of polyester-cotton fabric to rutile titanium dioxide with silane coupler, Fig. 1 (b) is for arranging surface sweeping Electronic Speculum (SEM) figure of polyester-cotton fabric to rutile titanium dioxide with silane coupler.
Fig. 2 be after cranberry juice dyeing polyester-cotton fabric whether at the comparison diagram of ultraviolet irradiation, in Fig. 2 (a) be after cranberry juice dyeing polyester-cotton fabric through the figure without ultraviolet irradiation, in Fig. 2 (b) be after cranberry juice dyes polyester-cotton fabric through the figure through ultraviolet irradiation 24h.
Fig. 3 is the K/S value figure of polyester-cotton fabric under different time of ultraviolet irradiation after cranberry juice dyeing.
The specific embodiment
Below in conjunction with concrete mode, the present invention is described further.
Embodiment 1
Rutile type nano titanic oxide has the method for sorting of UV absorption and self-cleaning performance to polyester-cotton fabric, it is characterized in that making through the following step:
(1) rutile type nano titanic oxide powder is added in ethanolic solution, be made into mass concentration and be 5% ethanolic solution, ultrasonic processing a period of time makes its nano titanium dioxide powder dispersed in ethanolic solution.
(3) by the silane coupler of titanium dioxide quality 1%, add in (1) middle ethanolic solution, regulate PH to neutral, stir, at 80 ℃ of reaction 2h of constant temperature, obtain the nano titanium dioxide finishing liquid after modification.
(3) polyester-mixed cotton cloth is placed in the nano titanium dioxide finishing liquid after modification, adopts two to soak two and roll, and pick-up reaches 80%, makes dispersed and and the polyester-cotton fabric combination of titanium dioxide.
(4) polyester-cotton fabric, after super-dry, just obtains having uvioresistant and self-cleaning performance.
Embodiment 2
Rutile type nano titanic oxide has the method for sorting of UV absorption and self-cleaning performance to polyester-cotton fabric, it is characterized in that making through the following step:
(1) rutile type nano titanic oxide powder is added in ethanolic solution, be made into mass concentration and be 4% ethanolic solution, ultrasonic processing a period of time makes its nano titanium dioxide powder dispersed in ethanolic solution.
(3) by the silane coupler of titanium dioxide quality 2%, add in (1) middle ethanolic solution, regulate PH to neutral, stir, at 80 ℃ of reaction 3h of constant temperature, obtain the nano titanium dioxide finishing liquid after modification.
(3) polyester-mixed cotton cloth is placed in the nano titanium dioxide finishing liquid after modification, adopts two to soak two and roll, and pick-up reaches 70%, makes dispersed and and the polyester-cotton fabric combination of titanium dioxide.
(4) polyester-cotton fabric, after super-dry, just obtains having uvioresistant and self-cleaning performance.
Embodiment 3
Rutile type nano titanic oxide has the method for sorting of UV absorption and self-cleaning performance to polyester-cotton fabric, it is characterized in that making through the following step:
(1) rutile type nano titanic oxide powder is added in ethanolic solution, be made into mass concentration and be 3% ethanolic solution, ultrasonic processing a period of time makes its nano titanium dioxide powder dispersed in ethanolic solution.
(3) by the silane coupler of titanium dioxide quality 3%, add in (1) middle ethanolic solution, regulate PH to neutral, stir, at 80 ℃ of reaction 1h of constant temperature, obtain the nano titanium dioxide finishing liquid after modification.
(3) polyester-mixed cotton cloth is placed in the nano titanium dioxide finishing liquid after modification, adopts two to soak two and roll, and pick-up reaches 60%, makes dispersed and and the polyester-cotton fabric combination of titanium dioxide.
(4) polyester-cotton fabric, after super-dry, just obtains having uvioresistant and self-cleaning performance.
The prepared polyester-cotton fabric with uvioresistant and self-cleaning performance is observed to rutile type nano titanic oxide in the deployment conditions of polyester-cotton fabric through ESEM (SEM), and colour photometer is measured its its self-cleaning ability of K/S value reflection.
Sem analysis
ESEM (SEM) is observed rutile type nano titanic oxide in the deployment conditions of polyester-cotton fabric, in Fig. 1, (a) unmodified rutile titanium dioxide arranges the SEM figure of polyester-cotton fabric, and in Fig. 1, the rutile titanium dioxide of (b) modification arranges the SEM figure of polyester-cotton fabric; From figure, can obviously find out, the rutile type nano titanic oxide particle after modification disperses fine, without obvious agglomeration.Deployment conditions is well the assurance that uvioresistant and self-cleaning performance are realized.
K/S value is analyzed
Colour photometer is measured its K/S value and is embodied its self-cleaning performance, in Fig. 2 (a) be after cranberry juice dyeing polyester-cotton fabric through the picture without ultraviolet irradiation, in Fig. 2 (b) be after cranberry juice dyes polyester-cotton fabric through the picture through ultraviolet irradiation 24h; Fabric after cranberry juice dyeing has self-cleaning performance as we can clearly see from the figure, Fig. 3 is the K/S value of polyester-cotton fabric under different time of ultraviolet irradiation after cranberry juice dyeing, from figure, can know that arranging rear fabric has automatically cleaning effect to cranberry juice spot, and irradiation time is longer, automatically cleaning effect is better.
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| CN104164783A (en) * | 2014-06-24 | 2014-11-26 | 沛县海情纺织有限责任公司 | Preparation method for environment-friendly and anti-sunburn textile |
| CN104452268A (en) * | 2014-11-12 | 2015-03-25 | 大连工业大学 | Preparation method of fiber loaded with nano titanium dioxide and fiber prepared by method |
| CN104562636A (en) * | 2015-01-14 | 2015-04-29 | 哈尔滨工业大学 | Continuous flax fiber bundle surface grafted with nano titanium dioxide as well as preparation method thereof |
| CN104788725A (en) * | 2015-03-25 | 2015-07-22 | 合肥工业大学 | Light stabilizer with ultraviolet ray shielding and absorbing functions and preparation method thereof |
| CN105671934A (en) * | 2016-01-27 | 2016-06-15 | 北京服装学院 | Preparation method of double-self-cleaning fabric with lasting and good photocatalytic self-cleaning and surface super-hydrophobic effects |
| CN107326651A (en) * | 2017-08-15 | 2017-11-07 | 江南大学 | Multi-functional super-hydrophobic textile finishing agent, its preparation method and application |
| CN108311138A (en) * | 2018-02-06 | 2018-07-24 | 东北师范大学 | A Dispersion Method of Ultrafine Pt Nanoparticles on the Surface of Anatase/Bronzeite Mixed Crystal TiO2 |
| CN108385368A (en) * | 2018-03-07 | 2018-08-10 | 江南大学 | A kind of preparation method and applications of nano-titanium dioxide organic inorganic hybridization anti UV finishing agent |
| CN108546345A (en) * | 2018-05-03 | 2018-09-18 | 吉林大学 | A kind of preparation method of modified nano-titanium dioxide/converted starch/chitosan complex film |
| CN108660758A (en) * | 2018-05-30 | 2018-10-16 | 叶建民 | A kind of preparation method of nano self-cleaning finishing agent |
| CN110387770A (en) * | 2019-07-19 | 2019-10-29 | 陕西科技大学 | A kind of anti-ultraviolet para-aramid fiber nano paper doped with nano TiO2 and its preparation method |
| CN111874946A (en) * | 2020-07-28 | 2020-11-03 | 盐城工学院 | A kind of preparation method and application of self-dispersing reactive two-phase titanium dioxide |
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| CN113774654A (en) * | 2021-09-09 | 2021-12-10 | 广东职业技术学院 | Ultraviolet-proof composition and application thereof |
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Effective date of registration: 20220303 Address after: 201100 room 205, building 8, No. 1128, Wuzhong Road, Minhang District, Shanghai Patentee after: Shanghai Tuona new chemical material Co.,Ltd. Address before: 1800 No. 214122 Jiangsu city of Wuxi Province Li Lake Avenue Patentee before: Jiangnan University |