A kind of ultra-long weather-resistant baking varnish and preparation method thereof

A baking paint and weather-resistant technology, which is applied in the coating and other directions, can solve the problems of affecting the service life of metal substrates, polluting the surrounding environment, and uneven mixing, so as to improve mixing efficiency and uniformity, strong carbon-fluorine bond energy, and mechanical strength. Good results

Active Publication Date: 2016-06-01
ZHANGZHOU XIN ZHAN WANG CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This needs to consume manpower and material resources, and in the process of spraying the paint, it will pollute the surrounding environment, and some may even affect the service life of the metal substrate.
[0003] In addition, the existing coatings need to use a variety of raw materials in the preparation process. In the past, various raw materials were poured into a large tank for stirring, and the components were gradually mixed with the stirring, but this method of stirring and mixing There are still uneven mixing and low efficiency, so that there will be color difference after the product leaves the factory

Method used

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  • A kind of ultra-long weather-resistant baking varnish and preparation method thereof
  • A kind of ultra-long weather-resistant baking varnish and preparation method thereof
  • A kind of ultra-long weather-resistant baking varnish and preparation method thereof

Examples

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Embodiment 1

[0034] An ultra-long weather-resistant baking varnish, its raw material composition is calculated by mass fraction: fluorocarbon resin 45%, amino resin 15%, aluminum powder 10%, polyurethane 1%, butyl ester 15%, ultra-fine tea stem powder 10%, silane Coupling agent 4%.

[0035] A method for preparing the above-mentioned ultra-long weather-resistant baking varnish, the specific steps are:

[0036] 1) The tea stems are dried at 90°C until the water content is 1%-3%, crushed, and passed through a 300-mesh sieve to obtain tea stem powder; mix the tea stem powder with the coupling agent, and stir for 10 minutes;

[0037] 2) Add fluorocarbon resin, pigments and fillers into the reaction kettle through the paint raw material step feeding stirring mixing device, the paint raw material step feeding stirring mixing device includes a ladder with four steps and a step at the bottom A reaction kettle at the side, a stirring shaft is inserted into the reaction kettle, an upper stirring kni...

Embodiment 2

[0042]An ultra-long weather-resistant baking varnish, its raw material composition is calculated by mass fraction: fluorocarbon resin 45%, amino resin 15%, titanium dioxide 25%, polyacrylate 2%, ultra-fine tea stem powder 5%, titanate bismuth Joint agent 2%, cyclohexanone 6%.

[0043] A method for preparing the above-mentioned ultra-long weather-resistant baking varnish, the specific steps are:

[0044] 1) The tea stems are dried at 110°C until the water content is 1%-3%, crushed, and passed through a 400-mesh sieve to obtain tea stem powder; mix the tea stem powder with a coupling agent, and stir for 20 minutes;

[0045] 2) Add fluorocarbon resin, pigments and fillers into the reaction kettle through the paint raw material step feeding stirring mixing device, the paint raw material step feeding stirring mixing device includes a ladder with four steps and a step at the bottom A reaction kettle at the side, a stirring shaft is inserted into the reaction kettle, an upper stirri...

Embodiment 3

[0050] An ultra-long weather-resistant baking varnish, its raw material composition is calculated by mass fraction: fluorocarbon resin 37%, amino resin 13%, iron oxide red 22%, organic silicon 1%, ethylene glycol butyl ether 10%, ultra-fine tea stem Powder 10%, aluminate coupling agent 2%, ethylene glycol butyl ether 5%.

[0051] A method for preparing the above-mentioned ultra-long weather-resistant baking varnish, comprising the following steps:

[0052] 1) The tea stems are dried at 120°C until the water content is 1%-3%, crushed, and passed through a 500-mesh sieve to obtain tea stem powder; mix the tea stem powder with a coupling agent, and stir for 30 minutes;

[0053] 2) Add fluorocarbon resin, pigments and fillers into the reaction kettle through the paint raw material step feeding stirring mixing device, the paint raw material step feeding stirring mixing device includes a ladder with four steps and a step at the bottom A reaction kettle at the side, a stirring shaft...

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Abstract

The invention belongs to the field of baking varnish preparation and particularly relates to ultralong-weathering baking varnish and a preparation method thereof. The ultralong-weathering baking varnish is prepared from the raw materials in percentage by mass: 30-45% of fluorocarbon resin, 10-15% of amino resin, 10-30% of pigment filler, 1-5% of auxiliaries, 5-15% of solvent, 5-10% of ultrafine tea stem powder and 2-4% of coupling agent. According to the ultralong-weathering baking varnish and the preparation method thereof, fluorocarbon acrylic resin is adopted, and fluorine element with high electronegativity is introduced, so that a coating contains a large number of F- -C bonds, and the stability of the molecular structure is enhanced; due to the adding of the ultrafine tea stem powder, a certain volume of organic volatile gases can be adsorbed, the ultrafine tea stem powder can be better mixed with other raw materials after the ultrafine tea stem powder is treated by the coupling agent, the properties of the baking varnish cannot be affected, and meanwhile, the baking varnish can have the characteristics of environmental-friendliness and safety; as the fluorocarbon resin is good in crystallinity and has the characteristics of no adhesion and no wettability, a stepped feeding device is simultaneously designed in a supporting manner, thus, the resin and the pigment / filler can be fully dispersed uniformly; due to the design of an anti-spill discharging funnel, the canning of the baking varnish becomes fast and convenient and is not prone to spilling.

Description

technical field [0001] The invention belongs to the field of baking varnish preparation, and in particular relates to an ultra-long weather-resistant baking varnish and a preparation method thereof. Background technique [0002] In order to protect the metal substrate exposed to the atmosphere from damage, it is necessary to coat the surface of the substrate with a protective material. High-temperature paint polymers can protect workpieces when working on high-temperature surfaces, and have excellent heat resistance that ordinary paints do not have. However, the high-temperature paint polymer has a certain molecular structure, and some parts of it have some weak bonds; the weak bonds undergo chemical reactions (such as oxidation reactions) and trigger a series of chemical reactions. It can be caused by many reasons, such as heat, ultraviolet light, mechanical stress, high-energy radiation, electric field, etc., and can be caused by a single element or a combination of multi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D127/12C09D161/20C09D7/12
Inventor 张信露谢平展张秋虹
Owner ZHANGZHOU XIN ZHAN WANG CHEM IND
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