Polyfunctional purine-based compound, and superhydrophobic nanometer material for building exterior walls, and preparation method thereof
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A technology of nano-materials and building exterior walls, applied in the direction of organic chemistry, can solve problems such as poor adhesion of super-hydrophobic materials, shedding of super-hydrophobic materials, attenuation of super-hydrophobic properties, etc., to improve hydrophobicity, increase firmness, attach Efforts to improve the effect
Inactive Publication Date: 2019-10-22
重庆多次元新材料科技有限公司
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However, in the process of practical application, it is gradually found that the adhesion of super-hydrophobic materials is poor, and the super-hydrophobic materials will fall off; in addition, the UV resistance is not good, and the super-hydrophobic properties decay quickly
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Embodiment 1
[0035] Embodiment 1-Preparation of complexes of the present invention 1
[0036] The present invention also provides a method for preparing the above-mentioned polyfunctional purine compound, comprising the following steps:
[0037] Among them, compound (1) was purchased from Bailingwei Reagent Co., Ltd.; compound (3) was purchased from Zhuhai Yuneng Technology Co., Ltd.; compound (5) was purchased from Zhuhai Yuneng Technology Co., Ltd.
[0038] Step 1: Take compound (1), whose structural formula is shown in formula I, react it with magnesium powder in ether, and reflux for 24 hours to obtain compound (2), whose structural formula is shown in formula II;
[0039]
[0040] Step 2: Take the compound (2) and compound (3), the compound (3) has a structural formula as shown in formula III, use toluene or diethyl ether as a solvent, make it undergo a substitution reaction, and reflux for 24 hours to obtain compound (4) , the structural formula of the compound (4) is shown in fo...
Embodiment 2
[0045] Embodiment 2-Preparation 2 of complexes of the present invention
[0046] When R 1 For-F, when n=0, the compound structural formula obtained according to the method of Example 1 is as follows:
[0047]
Embodiment 3
[0048] Embodiment 3-Preparation of complexes of the present invention 2
[0049] When R 1 Be-F, when n=30, according to the method for embodiment 1, compound structural formula is as follows:
[0050]
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Abstract
The invention relates to the field of superhydrophobic materials, particularly to a polyfunctional purine-based compound, and a superhydrophobic nanometer material for building exterior walls, and a preparation method thereof. According to the present invention, the polyfunctional purine-based compound modifies nanometer materials so as to substantially improve the adhesion of superhydrophobic nanometer materials during application; the polyfunctional purine-based compound has the purine group so as to improve the durability of superhydrophobic materials; the hydroxyl group of the compound andthe hydroxyl group of a nanometer material are condensed under the catalysis of an acid or alkali to form a hydrophobic material, such that a superhydrophobic material can be obtained by modifying ananometer oxide material with the compound based on the properties so as to improve the durability of the superhydrophobic material; and the remaining hydroxyl groups on the compound can be condensedwith the hydroxyl group on a building exterior wall to form hydrogen bond so as to further increase the adhesion of the compound to the building exterior wall.
Description
technical field [0001] The invention relates to the field of superhydrophobic materials, in particular to a multifunctional purine compound, a superhydrophobic nanometer material for building exterior walls and a preparation method thereof. Background technique [0002] Waterproofing of exterior walls is a protective measure taken to avoid the harm of water to the interior of buildings and indoor furniture. At present, the commonly used waterproof materials for exterior walls are mainly some polymer coatings. [0003] Superhydrophobic material is a new type of waterproof material, which not only has excellent waterproof function, but also has good self-cleaning effect. Superhydrophobic means that the contact angle between the surface of the material and water is >150°. This material has good hydrophobicity, and can realize various functions such as anti-fouling, self-cleaning, and waterproof like a lotus leaf. One of the hotspots of research and industrial application. ...
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