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Capillary effect assisted non-covalent assembled coating layer and preparation method thereof

A capillary effect, non-covalent technology, applied in textiles, papermaking, fiber treatment, etc., can solve the problems of poor assembly coating functions, etc., and achieve the effects of low production cost, simple preparation method, and simple preparation process

Active Publication Date: 2018-10-09
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a non-covalently assembled coating assisted by capillary effect and its preparation method. It provides a new coating preparation technology to realize the construction of highly conductive and electromagnetic shielding coatings on complex structured surfaces.

Method used

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  • Capillary effect assisted non-covalent assembled coating layer and preparation method thereof
  • Capillary effect assisted non-covalent assembled coating layer and preparation method thereof
  • Capillary effect assisted non-covalent assembled coating layer and preparation method thereof

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Embodiment 1

[0035] (1) Pretreat the non-woven cotton fabric to make it positively charged. The specific pretreatment steps are as follows:

[0036] Soak the non-woven cotton fabric in ethanol solution, and wash it with ultrasonic vibration for 10 minutes, then soak the non-woven cotton fabric with deionized water, and wash it with ultrasonic vibration for 10 minutes. After drying, the fabric was immersed in a mixed solution of 50g / L 3-chloro-2-hydroxypropyltrimethylammonium chloride and 18g / L sodium hydroxide at room temperature for 24 hours, passed through 3-chloro The ring-opening polymerization of -2-hydroxypropyltrimethylammonium chloride generates 2,3-epoxypropyltrimethylammonium chloride (C.Yilmaz, A.Sirman, A.Halder, A. Busnaina, ACS nano 2017, 11, 7679., it reacts with the hydroxyl group of the cotton fabric to provide rich positive charges on the surface of the fabric. After the treatment, soak the cotton fabric with deionized water, and finally put the fabric in a constant tempe...

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Abstract

The invention relates to a capillary effect assisted non-covalent assembled coating layer and a preparation method thereof. The coating layer is prepared from the raw materials of an inorganic nano material and flexible high-molecular polymer. The preparation method comprises the steps: pretreating a substrate material to obtain the pretreated substrate material; dipping the pretreated substrate material into an inorganic nano material solution to make the inorganic nano material form ultrahigh-quantity adsorption on the complex substrate surface under the capillary force assistance and drying; dipping an intermediate assembly into a flexible high-molecular polymer solution to achieve covalent bond assembling of the flexible high-molecular polymer and drying; repeating to obtain the high-load coating layer. The coating layer disclosed by the invention greatly exceeds deposition load capacity of traditional non-covalent assembling; meanwhile, stability of the assembled coating layer ismaintained; furthermore, an actual application field such as electromagnetic shielding of a nano-micro scale functional coating layer is expanded. In addition, the preparation technology disclosed bythe invention is simple, production cost is low, and the prepared coating layer has very good controllability on membrane structures and thickness.

Description

technical field [0001] The invention belongs to the field of coating materials and preparation thereof, in particular to a non-covalent assembly coating assisted by capillary effect and a preparation method thereof. Background technique [0002] A coating is a layer or layers of a certain thickness formed on the surface of a metal or non-metal substrate by physical, chemical or other methods, which are different from the substrate material and have certain reinforcement, protection or special functions. Self-assembled coating is a kind of coating technology. It uses the method of layer-by-layer alternate deposition, with the help of the weak interaction between the molecules of each layer, to make the layers spontaneously associate and form a complete structure, stable performance, and a certain specific In the process of functional molecular aggregates or supramolecular structures, functional materials can be easily introduced into thin films using self-assembled coating te...

Claims

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Application Information

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IPC IPC(8): D06M11/74D06M13/463D06M15/356D06M11/38
CPCD06M11/38D06M11/74D06M13/463D06M15/3562
Inventor 马莹李成龙兰春桃
Owner DONGHUA UNIV
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