CN107142717A - A kind of production method of the anti-aging geotextiles of the hydrosol - Google Patents
A kind of production method of the anti-aging geotextiles of the hydrosol Download PDFInfo
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- 239000004746 geotextile Substances 0.000 title claims abstract description 86
- 230000003712 anti-aging effect Effects 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 239000000835 fiber Substances 0.000 claims abstract description 59
- 238000000576 coating method Methods 0.000 claims abstract description 25
- 239000002002 slurry Substances 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 16
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000007598 dipping method Methods 0.000 claims abstract description 11
- 238000001035 drying Methods 0.000 claims abstract description 8
- 239000011248 coating agent Substances 0.000 claims abstract description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 18
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 230000032683 aging Effects 0.000 claims description 7
- 238000005470 impregnation Methods 0.000 claims description 7
- -1 polypropylene Polymers 0.000 claims description 7
- 239000004743 Polypropylene Substances 0.000 claims description 6
- FPCJKVGGYOAWIZ-UHFFFAOYSA-N butan-1-ol;titanium Chemical compound [Ti].CCCCO.CCCCO.CCCCO.CCCCO FPCJKVGGYOAWIZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 6
- 229920001155 polypropylene Polymers 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 239000012209 synthetic fiber Substances 0.000 claims description 3
- 229920002994 synthetic fiber Polymers 0.000 claims description 3
- 230000009514 concussion Effects 0.000 claims 1
- 239000003292 glue Substances 0.000 claims 1
- 229910010413 TiO 2 Inorganic materials 0.000 abstract description 34
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000006185 dispersion Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 230000002378 acidificating effect Effects 0.000 description 4
- 230000007062 hydrolysis Effects 0.000 description 3
- 238000006460 hydrolysis reaction Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000003980 solgel method Methods 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 230000004224 protection Effects 0.000 description 2
- 230000000191 radiation effect Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 230000006750 UV protection Effects 0.000 description 1
- 238000001467 acupuncture Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000001782 photodegradation Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/46—Oxides or hydroxides of elements of Groups 4 or 14 of the Periodic Table; Titanates; Zirconates; Stannates; Plumbates
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/25—Resistance to light or sun, i.e. protection of the textile itself as well as UV shielding materials or treatment compositions therefor; Anti-yellowing treatments
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
本发明公开了一种水溶胶抗老化土工布的生产方法，通过TiO2水溶胶对纤维或土工布进行浸渍工艺或涂层工艺整理制得，浸渍工艺：将TiO2水溶胶放置浆槽中，将需要整理的纤维或土工布浸没在TiO2水溶胶中，震荡浸渍，取出后放入烘箱中烘干；涂层工艺：将TiO2水溶胶放置浆槽中，纤维或土工布在浆槽上方低速通过，由多对毛刷将浆液横纵充分涂刷在纤维或土工布的两面，平均涂刷，取出后放入烘箱中烘干。本发明中TiO2水溶胶分散性均一，性能稳定，用浸渍、涂层法对纤维或土工布进行后整理，方法简单，易操作，在纤维和土工布表面形成的包膜完整均匀，有利于提高其抗紫外性能。
The invention discloses a production method of a hydrosol anti-aging geotextile, which is prepared by impregnating fibers or geotextiles with TiO 2 hydrosol or coating process. The dipping process: the TiO 2 hydrosol is placed in a slurry tank, Immerse the fiber or geotextile to be finished in TiO 2 hydrosol, shake and dip, take it out and put it in an oven for drying; coating process: put TiO 2 hydrosol in the slurry tank, and the fiber or geotextile is above the slurry tank Pass through at a low speed, use multiple pairs of brushes to fully brush the slurry on both sides of the fiber or geotextile horizontally and vertically, evenly brush, take it out and put it in an oven for drying. In the present invention, the TiO2 aqueous sol has uniform dispersion and stable performance. After finishing the fibers or geotextiles by dipping and coating methods, the method is simple and easy to operate. The coating formed on the surface of fibers and geotextiles is complete and uniform, which is beneficial to Improve its anti-ultraviolet performance.
Description
技术领域technical field
本发明专利涉及一种水溶胶抗老化土工布的生产方法，抗老化土工布适用酸性环境、碱性环境、多雨环境、沿海地区等使用土工布的工程领域。The patent of the invention relates to a production method of a hydrosol anti-aging geotextile. The anti-aging geotextile is suitable for engineering fields using geotextiles such as acidic environment, alkaline environment, rainy environment, and coastal areas.
背景技术Background technique
土工织物是一种土工合成纤维织物，具有增强/保护、分离、过滤和排水功能，广泛地用于土工技术和环境保护领域。其中非织造土工布由于具有各种应用功能，如分离、增强、过滤和排水等，在多个特殊领域中得到广泛的应用。在使用期间维持土工布的性能非常重要。聚丙烯和聚酯纤维主要用于生产土工布，土工布的耐气候性能正是由其聚合特性决定的。紫外线、氧气、碱性和酸性土壤等会影响土工材料的使用性能。特别是曝露于紫外线条件下能造成聚丙烯材料的光降解，从而造成聚合物链的分离或发生硬化和破裂。Geotextile is a kind of geosynthetic fiber fabric, which has the functions of reinforcement/protection, separation, filtration and drainage, and is widely used in the fields of geotechnical technology and environmental protection. Among them, nonwoven geotextiles are widely used in many special fields due to their various application functions, such as separation, reinforcement, filtration and drainage. It is very important to maintain the performance of geotextiles during use. Polypropylene and polyester fibers are mainly used in the production of geotextiles, and the weather resistance of geotextiles is determined by their polymeric properties. Ultraviolet rays, oxygen, alkaline and acidic soil, etc. will affect the performance of geotechnical materials. In particular, exposure to UV light can cause photodegradation of polypropylene materials, resulting in separation of polymer chains or hardening and rupture.
要提高纤维的耐光性就是要提高纤维的抗紫外线性。二氧化钛作为半导体材料，它成本低、稳定性好、比表面积大、光吸收性能好、表面活性大、分散性好、无毒，在生产过程中操作简单且无污染，在改善环境中的用处不断得到提高。采用溶胶-凝胶制备TiO2水溶胶，先把钛金属化合物在适当条件下水解，控制水解速率，使之变成溶胶，然后再用溶胶对纤维或土工布进行浸渍或涂层整理，再采用适当的工艺，使得TiO2水溶胶在织物表面形成薄膜，赋予纤维或土工布抗紫外性能。To improve the light resistance of the fiber is to improve the UV resistance of the fiber. As a semiconductor material, titanium dioxide has low cost, good stability, large specific surface area, good light absorption performance, high surface activity, good dispersibility, non-toxicity, simple operation and no pollution in the production process, and is constantly used in improving the environment. get improved. Using sol-gel to prepare TiO 2 hydrosol, first hydrolyze the titanium metal compound under appropriate conditions, control the hydrolysis rate, and make it into a sol, and then use the sol to impregnate or coat the fiber or geotextile, and then use Proper process makes TiO 2 hydrosol form a film on the surface of the fabric, endowing the fiber or geotextile with anti-ultraviolet properties.
以钛酸丁酯、乙酸、水与乙醇混合物为原料，采用溶胶凝胶法制备TiO2水溶胶，产品粒径分布均匀，抗紫外性能优异，用浸渍、涂层法对聚丙烯土工布进行整理，方法简单易操作，在纤维和土工布表面形成的包膜完整均匀，可大大提高土工布抗紫外性能。Using the mixture of butyl titanate, acetic acid, water and ethanol as raw materials, TiO 2 hydrosol was prepared by sol-gel method. The particle size distribution of the product was uniform, and the anti-ultraviolet performance was excellent. Polypropylene geotextiles were finished by dipping and coating methods. , the method is simple and easy to operate, and the coating formed on the surface of the fiber and the geotextile is complete and uniform, which can greatly improve the anti-ultraviolet performance of the geotextile.
发明内容Contents of the invention
发明目的：本发明的目的是为了解决现有技术中的不足，提供一种水溶胶抗老化土工布的生产方法，用浸渍、涂层法对纤维或土工布进行后整理，方法简单，易操作，在纤维和土工布表面形成的包膜完整均匀，有利于提高其抗紫外性能。Purpose of the invention: The purpose of the present invention is to solve the deficiencies in the prior art, provide a production method of hydrosol anti-aging geotextiles, and use impregnation and coating methods to finish the fibers or geotextiles. The method is simple and easy to operate , The envelope formed on the surface of the fiber and geotextile is complete and uniform, which is conducive to improving its anti-ultraviolet performance.
技术方案：本发明所述的一种水溶胶抗老化土工布的生产方法，通过TiO2水溶胶对纤维或土工布进行浸渍工艺或涂层工艺整理制得；Technical solution: the production method of a hydrosol anti-aging geotextile according to the present invention is prepared by impregnating fibers or geotextiles with TiO 2 hydrosol or coating process;
浸渍工艺包括：将TiO2水溶胶放置浆槽中，将需要整理的纤维或土工布浸没在TiO2水溶胶中，震荡浸渍，取出后放入烘箱中烘干；The impregnation process includes: placing the TiO 2 hydrosol in the slurry tank, immersing the fiber or geotextile to be sorted in the TiO 2 hydrosol, oscillating and impregnating, taking it out and drying it in an oven;
涂层工艺包括：将TiO2水溶胶放置浆槽中，纤维或土工布在浆槽上方低速通过，由多对毛刷将浆液横纵充分涂刷在纤维或土工布的两面，平均涂刷，取出后放入烘箱中烘干。The coating process includes: placing the TiO 2 hydrosol in the slurry tank, passing the fiber or geotextile over the slurry tank at a low speed, and using multiple pairs of brushes to fully brush the slurry on both sides of the fiber or geotextile horizontally and vertically, evenly brushing, Take it out and put it in the oven to dry.
进一步的，所述TiO2水溶胶是以钛酸丁酯、乙酸、水与乙醇共混物为原料，采用溶胶凝胶法制备。Further, the TiO 2 aqueous sol is prepared by a sol-gel method using a blend of butyl titanate, acetic acid, water and ethanol as a raw material.
进一步的，所述纤维是抗老化性能差的化学合成纤维，如聚丙烯纤维、聚酰胺纤维。Further, the fibers are chemical synthetic fibers with poor aging resistance, such as polypropylene fibers and polyamide fibers.
进一步的，所述土工布是由耐老化性能差的纤维所制备，土工布种类包括：无纺土工布、有纺土工布或加筋土工布、经编复合土工布、防渗土工布、短纤针刺土工布、编织土工布、机织土工布。Further, the geotextiles are prepared from fibers with poor aging resistance, and the types of geotextiles include: non-woven geotextiles, woven geotextiles or reinforced geotextiles, warp-knitted composite geotextiles, anti-seepage geotextiles, short Needle-punched geotextiles, woven geotextiles, woven geotextiles.
进一步的，所述浸渍工艺中浸渍时间为10~120min，取出后放入烘箱中以60~90℃烘干。Further, the dipping time in the dipping process is 10-120 minutes, and after taking it out, put it into an oven to dry at 60-90°C.
进一步的，所述涂层工艺中用毛刷横纵式交叉正反涂层5~20次，取出后放入烘箱中以60~90℃直至烘干。Further, in the coating process, brushes are used to cross the front and back layers horizontally and vertically for 5-20 times, and after taking them out, put them into an oven at 60-90°C until they are dried.
有益效果：本发明方法简单，易操作。TiO2水溶胶粒子分散均一，抗紫外线功能稳定，用浸渍或涂层法整理后的纤维或土工材料，紫外线透过率低，抗紫外线辐射效果好，强力损失率降低。整理后的纤维或土工布，在PH为4的酸性环境下，抗紫外力学性能提高高15%~30%；在PH为10的碱性环境下，抗紫外力学性能提高10%~25%；在雨水冲洗环境下，抗紫外力学性能提高20%~40%；在模拟海水的金属离子环境下，抗紫外力学性能提高10%~30%。Beneficial effects: the method of the invention is simple and easy to operate. TiO 2 hydrosol particles are uniformly dispersed, and the anti-ultraviolet function is stable. Fibers or geotechnical materials finished by dipping or coating methods have low ultraviolet transmittance, good anti-ultraviolet radiation effect, and reduced strength loss rate. After finishing the fiber or geotextile, in the acidic environment of PH 4, the mechanical properties of anti-ultraviolet are increased by 15%~30%; in the alkaline environment of PH 10, the mechanical properties of anti-ultraviolet are increased by 10%~25%; Under the environment of rain washing, the mechanical properties of anti-ultraviolet are increased by 20%~40%; under the environment of metal ions in simulated seawater, the mechanical properties of anti-ultraviolet are increased by 10%~30%.
附图说明Description of drawings
图1为本发明的抗老化土工布纤维纵向截面图；Fig. 1 is the anti-aging geotextile fiber longitudinal sectional view of the present invention;
图2为本发明的抗老化土工布纤维横向截面图；Fig. 2 is the cross-sectional view of anti-aging geotextile fiber of the present invention;
图3为1000倍下纤维电镜图。Figure 3 is a fiber electron microscope picture at 1000 times.
具体实施方式detailed description
下面结合具体实施例和附图对本发明的技术方案作进一步详细说明。The technical solution of the present invention will be described in further detail below in conjunction with specific embodiments and accompanying drawings.
实施例1Example 1
一种水溶胶抗老化土工布的生产方法，通过TiO2水溶胶对纤维或土工布进行浸渍工艺或涂层工艺整理制得。The invention discloses a production method of hydrosol anti-aging geotextile, which is prepared by impregnating fiber or geotextile with TiO 2 hydrosol or coating process.
浸渍工艺包括：将TiO2水溶胶放置浆槽中，将需要整理的纤维或土工布浸没在TiO2水溶胶中，震荡浸渍10min，取出后放入烘箱中60℃烘干；The impregnation process includes: placing the TiO 2 water sol in the slurry tank, immersing the fiber or geotextile to be finished in the TiO 2 water sol, oscillating and dipping for 10 minutes, taking it out and drying it in an oven at 60°C;
涂层工艺包括：将TiO2水溶胶放置浆槽中，纤维或土工布在浆槽上方低速通过，由多对毛刷将浆液横纵充分涂刷在纤维或土工布的两面，用毛刷横纵式交叉正反涂层5次，取出后放入烘箱中以60℃直至烘干。The coating process includes: placing the TiO 2 hydrosol in the slurry tank, passing the fiber or geotextile over the slurry tank at a low speed, using multiple pairs of brushes to fully brush the slurry on both sides of the fiber or geotextile horizontally and vertically, and using the brush horizontally and vertically. Vertical cross front and back coating 5 times, take it out and put it in an oven at 60°C until it is dried.
实施例2Example 2
一种水溶胶抗老化土工布的生产方法，通过TiO2水溶胶对纤维或土工布进行浸渍工艺或涂层工艺整理制得。The invention discloses a production method of hydrosol anti-aging geotextile, which is prepared by impregnating fiber or geotextile with TiO 2 hydrosol or coating process.
浸渍工艺包括：将TiO2水溶胶放置浆槽中，将需要整理的纤维或土工布浸没在TiO2水溶胶中，震荡浸渍70min，取出后放入烘箱中90℃烘干；The impregnation process includes: placing the TiO 2 hydrosol in the slurry tank, immersing the fiber or geotextile to be sorted in the TiO 2 hydrosol, oscillating and impregnating for 70 minutes, taking it out and drying it in an oven at 90°C;
涂层工艺包括：将TiO2水溶胶放置浆槽中，纤维或土工布在浆槽上方低速通过，由多对毛刷将浆液横纵充分涂刷在纤维或土工布的两面，用毛刷横纵式交叉正反涂层20次，取出后放入烘箱中以90℃直至烘干。The coating process includes: placing the TiO 2 hydrosol in the slurry tank, passing the fiber or geotextile over the slurry tank at a low speed, using multiple pairs of brushes to fully brush the slurry on both sides of the fiber or geotextile horizontally and vertically, and using the brush horizontally and vertically. Vertical cross front and back coating 20 times, take it out and put it in an oven at 90°C until it is dried.
实施例3Example 3
一种水溶胶抗老化土工布的生产方法，通过TiO2水溶胶对纤维或土工布进行浸渍工艺或涂层工艺整理制得。The invention discloses a production method of hydrosol anti-aging geotextile, which is prepared by impregnating fiber or geotextile with TiO 2 hydrosol or coating process.
浸渍工艺包括：将TiO2水溶胶放置浆槽中，将需要整理的纤维或土工布浸没在TiO2水溶胶中，震荡浸渍120min，取出后放入烘箱中75℃烘干；The impregnation process includes: placing the TiO 2 water sol in the slurry tank, immersing the fiber or geotextile to be sorted in the TiO 2 water sol, oscillating and dipping for 120 minutes, taking it out and drying it in an oven at 75°C;
涂层工艺包括：将TiO2水溶胶放置浆槽中，纤维或土工布在浆槽上方低速通过，由多对毛刷将浆液横纵充分涂刷在纤维或土工布的两面，用毛刷横纵式交叉正反涂层10次，取出后放入烘箱中以75℃直至烘干。The coating process includes: placing the TiO 2 hydrosol in the slurry tank, passing the fiber or geotextile over the slurry tank at a low speed, using multiple pairs of brushes to fully brush the slurry on both sides of the fiber or geotextile horizontally and vertically, and using the brush horizontally and vertically. Vertical cross front and back coating 10 times, take it out and put it in an oven at 75°C until it is dried.
上述三个实施例中的TiO2水溶胶是以钛酸丁酯、乙酸、水或乙醇共混物为原料，采用溶胶凝胶法制备。其中，钛酸丁酯作为前驱体，含量为20~40wt%；乙酸作为稳定剂和催化剂，含量为10~30wt%；剩余水、乙醇或水和乙醇的共混物作为溶剂，含量为30~70wt%。The TiO 2 aqueous sols in the above three examples are prepared by sol-gel method using butyl titanate, acetic acid, water or ethanol blend as raw material. Among them, butyl titanate is used as a precursor with a content of 20-40wt%; acetic acid is used as a stabilizer and catalyst with a content of 10-30wt%; the remaining water, ethanol or a blend of water and ethanol is used as a solvent with a content of 30-30wt%. 70wt%.
TiO2水溶胶的制备方法如下：将钛酸丁酯放入到水或乙醇中水解，添加乙酸控制其水解速率，同时用搅拌器搅拌混合液体40~80min；再将其进行20~50℃的水浴加热，得到TiO2水溶胶。The preparation method of TiO 2 hydrosol is as follows: put butyl titanate into water or ethanol for hydrolysis, add acetic acid to control its hydrolysis rate, and stir the mixed liquid with a stirrer for 40~80min; Heated in a water bath to obtain TiO 2 hydrosol.
该TiO2水溶胶的特性如下：The characteristics of this TiO2 hydrosol are as follows:
（1）粒径分布：TiO2水溶胶粒径在5nm~100nm；(1) Particle size distribution: The particle size of TiO 2 hydrosol is 5nm~100nm;
（2）稳定时间：TiO2水溶胶随着稳定剂使用量的不同，稳定时间在20~30天；(2) Stability time: TiO 2 hydrosol has a stability time of 20 to 30 days depending on the amount of stabilizer used;
（3）UPF系数：TiO2水溶胶整理后织物UPF达到40以上，UVA达10%以上，UVB达1%以上。(3) UPF coefficient: After finishing with TiO 2 hydrosol, the UPF of the fabric can reach more than 40, the UVA can reach more than 10%, and the UVB can reach more than 1%.
所述纤维是抗老化性能差的化学合成纤维，如聚丙烯纤维、聚酰胺纤维。The fibers are chemical synthetic fibers with poor aging resistance, such as polypropylene fibers and polyamide fibers.
所述土工布是由耐老化性能差的纤维所制备，土工布种类包括：无纺土工布、有纺土工布或加筋土工布、经编复合土工布、防渗土工布、短纤针刺土工布、编织土工布、机织土工布。The geotextiles are prepared from fibers with poor aging resistance, and the types of geotextiles include: non-woven geotextiles, woven geotextiles or reinforced geotextiles, warp-knitted composite geotextiles, anti-seepage geotextiles, short-fiber acupuncture Geotextiles, Woven Geotextiles, Woven Geotextiles.
制得的一种水溶胶抗老化土工布的纤维横纵截面如图1和图2，纤维在1000倍电镜下如图3，TiO2水溶胶均匀包覆在纤维1表面，形成一层TiO2薄膜2，经老化试验得出整理后的纤维或土工布具有优良的抗老化性能。The fiber cross-section of a hydrosol anti-aging geotextile prepared is shown in Figure 1 and Figure 2, and the fiber is shown in Figure 3 under a 1000 times electron microscope, and the TiO 2 hydrosol is evenly coated on the surface of the fiber 1, forming a layer of TiO 2 For film 2, the fiber or geotextile after finishing has excellent anti-aging performance through aging tests.
本发明方法简单，易操作。TiO2水溶胶粒子分散均一，抗紫外线功能稳定，用浸渍或涂层法整理后的纤维或土工材料，紫外线透过率低，抗紫外线辐射效果好，强力损失率降低。整理后的纤维或土工布，在PH为4的酸性环境下，抗紫外力学性能提高高15%~30%；在PH为10的碱性环境下，抗紫外力学性能提高10%~25%；在雨水冲洗环境下，抗紫外力学性能提高20%~40%；在模拟海水的金属离子环境下，抗紫外力学性能提高10%~30%。The method of the invention is simple and easy to operate. TiO 2 hydrosol particles are uniformly dispersed, and the anti-ultraviolet function is stable. Fibers or geotechnical materials finished by dipping or coating methods have low ultraviolet transmittance, good anti-ultraviolet radiation effect, and reduced strength loss rate. After finishing the fiber or geotextile, in the acidic environment of PH 4, the mechanical properties of anti-ultraviolet are increased by 15%~30%; in the alkaline environment of PH 10, the mechanical properties of anti-ultraviolet are increased by 10%~25%; Under the environment of rain washing, the mechanical properties of anti-ultraviolet are increased by 20%~40%; under the environment of metal ions in simulated seawater, the mechanical properties of anti-ultraviolet are increased by 10%~30%.
以上所述，仅是本发明的较佳实施例而已，并非对本发明作任何形式上的限制，虽然本发明已以较佳实施例揭露如上，然而并非用以限定本发明，任何熟悉本专业的技术人员，在不脱离本发明技术方案范围内，当可利用上述揭示的技术内容作出些许更动或修饰为等同变化的等效实施例，但凡是未脱离本发明技术方案的内容，依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均仍属于本发明技术方案的范围内。The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Anyone familiar with this field Those skilled in the art, without departing from the scope of the technical solution of the present invention, can use the technical content disclosed above to make some changes or modify equivalent embodiments with equivalent changes. Any simple modifications, equivalent changes and modifications made to the above embodiments by the technical essence still belong to the scope of the technical solutions of the present invention.
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