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Preparation method of large biological coating containing tea bioactive component

A biologically active ingredient, biological technology, used in biocide-containing paints, antifouling/underwater coatings, polyurea/polyurethane coatings, etc., can solve problems such as poor surface gloss, low hardness, and poor solvent resistance

Inactive Publication Date: 2021-09-14
百草春天大生物科技(青岛)有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although it has many advantages, it still has disadvantages such as low hardness, poor solvent resistance, poor surface gloss, and poor hand feel of the coating, which limits its application.

Method used

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  • Preparation method of large biological coating containing tea bioactive component
  • Preparation method of large biological coating containing tea bioactive component

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Embodiment 1

[0024] The invention discloses a method for preparing a macrobiological coating containing tea bioactive components, which greatly improves the comprehensive performance of the coating. The preparation method steps of the large bio-coating containing tea bioactive components are as follows:

[0025] (1) Extraction of tea polyphenols: Dry the green tea leaves at 40-45°C, grind and sieve to obtain tea powder with an average particle size of ≤180 μm, mix the tea powder with ethanol with a volume fraction of 60% Mix according to the ratio of liquid to material 40-50:1 (mL / g), use ultrasonic-assisted ethanol extraction to extract at 60°C for 20 minutes, filter the extract, concentrate, and freeze-dry to obtain tea polyphenol powder ;

[0026] (2) Modification of graphene:

[0027] Mix 5g of graphite powder and 2g of sodium nitrate, add 120mL of concentrated sulfuric acid and stir in an ice bath for 30min, then add 20g of potassium permanganate and continue stirring for 60min, mov...

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Abstract

The invention provides a preparation method of a large biological coating containing a tea bioactive component, and relates to the technical field of large biological coatings. The large biological coating containing the tea bioactive component is prepared through the steps of extraction of tea polyphenol, graphene modification, preparation of the large biological coating containing the tea bioactive component and the like. According to the invention, tea polyphenol molecules are utilized to perform surface modification on graphene, so that the agglomeration problem of graphene is solved, and the performance of the large biological coating containing tea bioactive component is remarkably improved. Meanwhile, the method provided by the invention is simple in process and low in cost, and has a good industrial production prospect and a relatively high economic value.

Description

technical field [0001] The invention relates to the technical field of macrobiological coatings, in particular to a preparation method of macrobiological coatings containing tea bioactive components. Background technique [0002] Tea polyphenols (Teapolyphenols, TP) is a polyhydric phenolic compound in tea, also known as tea tannin, is the general term for polyhydric phenolic compounds and their derivatives in tea, accounting for about 20-30%, is one of the important components of tea. According to different chemical structures, tea polyphenols are mainly divided into four categories: catechins, flavonoids and flavonols, anthocyanins, phenolic acids, and phenolic acids. Studies have shown that tea polyphenols have multiple functions such as anti-oxidation, antibacterial, anti-virus, and anti-tumor. In addition, they can also regulate immunity, improve renal failure, and resist allergies. At present, tea polyphenols are widely used in food, medicine, daily necessities and m...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D7/62C09D5/14
CPCC09D175/04C09D7/62C09D5/14C08K9/04C08K3/042
Inventor 黄效华唐宇欣刘彦明
Owner 百草春天大生物科技(青岛)有限公司
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