Microcrystalline muscovite loaded nano ZnO composite anti-ultraviolet agent and preparation method thereof
A technology of microcrystalline muscovite and anti-ultraviolet agent, which is applied in the direction of nanotechnology, nanotechnology, chemical instruments and methods, etc., can solve the problems of easy agglomeration, easy delamination, poor dispersion, etc., and achieve reunion, convenient work, high The effect of transmittance
Pending Publication Date: 2020-11-13
CHENGDU UNIVERSITY OF TECHNOLOGY
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Problems solved by technology
[0035] The object of the invention is, take the natural flaky mineral microcrystalline muscovite of tool layered structure as raw material, prepare a kind of composite anti-ultraviolet agent or ultraviolet shielding material by loading nano-ZnO, to overcome existing nano-ZnO easily agglomerated, easily Problems such as delamination and poor dispersion, improve sun protection and UV shielding performance, improve aesthetic effect, prevent whitening, improve use efficiency, and reduce use cost
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[0078] Example 1: A kind of microcrystalline muscovite loaded nano-ZnO composite anti-ultraviolet agent and its preparation method
[0079] The natural flake mineral microcrystalline muscovite is used as the carrier mineral raw material, and the microcrystalline muscovite is relatively pure ( figure 1 ), the crystals are in the shape of irregular scales, and the size of the scales is 0.5 μm to 2 μm ( Figure 6 a), adopting direct precipitation method to prepare microcrystalline muscovite loaded nano ZnO composite anti-ultraviolet agent, its preparation technology is carried out according to following 5 steps:
[0080] (1) Preparation of zinc sulfate heptahydrate-microcrystalline muscovite mixture: press zinc sulfate heptahydrate (ZnSO 4 ·7H 2 2) and microcrystalline muscovite mineral raw material mass ratio 2~5:1, take certain quality zinc sulfate heptahydrate and microcrystalline muscovite mineral raw material powder respectively, and further grind and mix 30~40min, obtain ...
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The invention relates to a microcrystalline muscovite loaded nano ZnO composite anti-ultraviolet agent and a preparation method thereof. Natural flaky mineral microcrystalline muscovite is used as a carrier mineral raw material, a room-temperature solid-phase synthesis method is adopted, and the method comprises the steps that 1, weighing zinc sulfate heptahydrate and microcrystalline muscovite according to a mass ratio of 2-5:1, mixing, and grinding to prepare a zinc sulfate heptahydrate-microcrystalline muscovite mixture; 2, weighing zinc sulfate heptahydrate and sodium oxalate according toa mole ratio of 1-2:1, mixing, and grinding to obtain a precursor (a zinc oxalate-microcrystalline muscovite mixture); 3, using a centrifugal washing device to carry out centrifugal washing to removeimpurities in the precursor (the zinc oxalate-microcrystalline muscovite mixture); 4, drying the materials by a drying device at a drying temperature of 105 DEG C for 3-6 hours; and 5, roasting the loaded dried material by a roasting device at a heating rate of 10-15 DEG C / min at a roasting temperature of 400-550 DEG C, and keeping the temperature for 2-4 hours to obtain the microcrystalline muscovite loaded nano ZnO composite anti-ultraviolet agent. The method is obvious in effect, good in safety, simple in process, easy to popularize and apply, wide in application and remarkable in social and economic benefits.
Description
[0001] 1. Technical field [0002] The invention relates to a microcrystalline muscovite-loaded nano-ZnO composite anti-ultraviolet agent and a preparation method thereof. The nano-ZnO is coated on the surface of the natural flaky mineral microcrystalline muscovite by a room-temperature solid-phase synthesis method to obtain microcrystalline muscovite-loaded The nanometer ZnO composite anti-ultraviolet agent is suitable for the fields of anti-ultraviolet materials or ultraviolet shielding materials. [0003] 2. Background technology [0004] 2.1 Ultraviolet concept [0005] Ultraviolet (UV for short) is an electromagnetic wave with a wavelength of 200nm to 400nm. The ultraviolet rays in sunlight can be divided into three sections according to different wavelengths: long-wave ultraviolet UVA (320-400nm), medium-wave ultraviolet UVB (280-320nm) and short-wave ultraviolet UVC (200-280nm). Appropriate sunlight can increase the oxygen content of the body's cells, lower blood sugar...
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Login to View More IPC IPC(8): C01G9/02C01B33/42B82Y30/00B82Y40/00A61K8/27A61K8/26A61Q17/04
CPCC01G9/02C01B33/42B82Y30/00B82Y40/00A61K8/27A61K8/26A61Q17/04C01P2004/80C01P2002/72
Inventor 汪灵林潇董秋冶梁唯丛
Owner CHENGDU UNIVERSITY OF TECHNOLOGY