Preparation method of functional thermal-insulation and anti-bacterial starch coating

A functional starch technology, applied in starch coatings, reflective/signal coatings, anti-fouling/underwater coatings, etc., can solve problems such as failure to promote applications, water resistance and anti-corrosion defects

Inactive Publication Date: 2018-11-02
WUHU CHUANGYUAN NEW MATERIALS CO LTD
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] Due to the defects of starch itself in water resistance and anti-corrosion properties, its application has not been promoted. In the preparation of starch, in order

Method used

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Embodiment Construction

[0023] A preparation method of functional heat-insulating antibacterial starch coating, is characterized in that, comprises the following steps:

[0024] (1) Styrene-acrylic modified gelatinized starch solution

[0025] a) Add 25 parts by weight of starch to an appropriate amount of water to prepare a starch aqueous solution with a concentration of 8%, place it in a water bath with an initial temperature of 25°C, stir evenly, and slowly pour it into the system under the condition of uniform stirring 40 parts by weight of 5% sodium hydroxide aqueous solution was added dropwise;

[0026] b) Add 75 parts of styrene-acrylic emulsion to the starch solution, stir evenly, add a silane coupling agent dropwise, heat up to 40°C and stir for 1.5 hours, cool to room temperature to obtain a styrene-acrylic modified gelatinized starch solution, which is ready for use;

[0027] (2) Ball milling and cladding

[0028] a) 30 parts by weight of talc powder, 15 parts by weight of zinc oxide, an...

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Abstract

The invention discloses a preparation method of a functional thermal-insulation and anti-bacterial starch coating. The preparation method comprises steps as follows: a low-temperature gelatinized starch solution is prepared and modified with styrene-acrylic emulsion; talcum powder, zinc oxide and nanometer titania are subjected to high-temperature calcination and ball-milling treatment to coat prepared oil phase; a dispersing agent, a lubricating agent, a film-forming agent, an anti-settling agent, an anticorrosive agent, polyethylene glycol, ammonium hydroxide and filler are mixed and stirred, a mixture, the styrene-acrylic modified gelatinized starch solution and coated powder are added to a ball mill for grinding, a product is mixed uniformly with other materials, and the functional thermal-insulation and anti-bacterial starch coating is obtained. According to the preparation method, water resistance is improved by the styrene-acrylic emulsion, and the coating is prepared by mixingwith raw materials such as inorganic filler and the like and has good water resistance and good thermal-insulation and anti-bacterial functions.

Description

technical field [0001] The invention belongs to the field of paint processing, and in particular relates to a preparation method of a functional heat-insulating antibacterial starch paint. Background technique [0002] Starch is a very important nutrient, and its production in nature is second only to cellulose. Starch is a natural high-molecular carbohydrate produced by the photosynthesis of green plants. Both human and animal organisms rely on it to survive in nature. Starch is also an important raw material in the process of modern organic chemical industry and synthetic polymer material industry. It is used in a large number of food or non- Food industry is widely used. [0003] Due to the defects of starch itself in water resistance and anti-corrosion properties, its application has not been promoted. In the preparation of starch, in order to obtain a larger contact area and better adhesion, and enhance its anti-corrosion and water resistance, etc. Performance, starc...

Claims

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Application Information

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IPC IPC(8): C09D125/14C09D103/02C09D5/33C09D5/14C09D7/65C09D7/62C09D7/61
CPCC08K2003/2241C08K2003/2296C08K2201/011C08K2201/014C08L2205/035C09D5/004C09D5/14C09D7/61C09D7/62C09D7/65C09D125/14C08L3/02C08L71/02C08L83/04C08K13/06C08K9/10C08K3/34C08K3/22
Inventor 高恒东胡佳佳
Owner WUHU CHUANGYUAN NEW MATERIALS CO LTD
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