A kind of excellent curable fluorocarbon paint and preparation method thereof

A curable, fluorocarbon paint technology, applied in the direction of coating, etc., can solve the influence of physical properties such as tensile and impact resistance of fluorocarbon paint film, the flatness of the paint film surface, the decrease of paint film adhesion, and the susceptibility to other external factors. Factors such as the influence of the problem, to achieve the effect of short curing time, fast film formation, physical properties

Active Publication Date: 2020-12-25
安徽博泰氟材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The curing process of fluorocarbon paint generally includes room temperature curing and heating curing, but the complete curing time of both is about 7 days or even longer. If the curing time is too long, the forming speed of the paint film will be too slow and the forming efficiency will be low. , easily affected by other external factors, the flatness of the paint film surface and the adhesion of the paint film will decrease accordingly, and the physical properties such as tensile resistance and impact resistance of the fluorocarbon paint film will also be affected

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Preparation of main material: Send 40g of modified fluorocarbon resin mixture, 2g of talc powder, 2g of leveling agent, and 6g of methyl amyl alcohol into the automatic mixer, and the mixing time is 2min at low speed / 5min at high speed; the low speed is 110r / min , at a high speed of 200r / min, then grind to a fineness of ≤20 microns, and the temperature of dispersion and grinding is 30°C.

[0034] Preparation of curing agent composition: Put 30g of polyvinyl formal, 10g of deionized water, and 5g of sodium bicarbonate into the reaction kettle, stir evenly, add 20g of amino resin, 5g of polyethylene glycol, and stir for 20 minutes to obtain curing agent composition.

[0035] Preparation of modified fluorocarbon resin mixture:

[0036] (1) Add 30g of acrylic resin and 50g of fluorocarbon resin into deionized water, stir at 32°C for 10 minutes, add 2g of sodium dodecylbenzenesulfonate and 4g of silicone oil, and put them into a colloid mill for 2 hours to make a mixed resi...

Embodiment 2

[0040] Preparation of main material: Send 40g of modified fluorocarbon resin mixture, 2g of talc powder, 2g of leveling agent, and 6g of methyl amyl alcohol into the automatic mixer, and the mixing time is 2min at low speed / 5min at high speed; the low speed is 110r / min , at a high speed of 200r / min, then grind to a fineness of ≤20 microns, and the temperature of dispersion and grinding is 30°C.

[0041] Preparation of curing agent composition: Put 30g of polyvinyl formal, 10g of deionized water, and 5g of sodium bicarbonate into the reaction kettle, stir evenly, add 20g of amino resin, 5g of polyethylene glycol, and stir for 20 minutes to obtain curing agent composition.

[0042] Preparation of modified fluorocarbon resin mixture:

[0043] (1) Add 30g of acrylic resin and 50g of fluorocarbon resin into deionized water, stir at 32°C for 10 minutes, add 2g of sodium dodecylbenzenesulfonate and 4g of silicone oil, and put them into a colloid mill for 2 hours to make a mixed resi...

Embodiment 3

[0079] On the basis of Example 1, set only the comparative example 1 that fluororesin is modified, the comparative example 2 that uses sodium carbonate as the curing agent composition component, the comparative example 3 that does not add sodium bicarbonate, and do not modify the fluorocarbon resin mixture. Modified comparative example 4, comparative example 5 using m-phenylenediamine as curing agent.

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PUM

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Abstract

The invention discloses fluorocarbon paint with excellent curing property and a preparation method thereof, and relates to the technical field of coatings. The fluorocarbon paint is prepared from a main material and a curing agent composition, wherein the main material is prepared from a modified fluorocarbon resin mixture, an extinction powder, a flatting agent and an organic dispersant, and thecuring agent composition is prepared from polyvinyl formal, amino resin, deionized water, bicarbonate and polyethylene glycol. According to the fluorocarbon paint and the preparation method thereof, the fluorocarbon resin mixture is modified, so that the fluorocarbon resin mixture can be more easily cured by a curing agent, meanwhile, bicarbonate can obviously increase the curing rate, and the stability of the curing agent composition is improved.

Description

Technical field: [0001] The invention relates to the technical field of coatings, in particular to an excellent curable fluorocarbon paint and a preparation method thereof. Background technique: [0002] Fluorocarbon resins are homopolymerized or copolymerized with fluorine-containing olefins, such as tetrafluoroethylene (TFE), chlorotrifluoroethylene (CTFE), vinylidene chloride (VDF), vinyl chloride (VF), etc., as basic units, or with Copolymerization of other monomers, and self-polymerization or copolymerization of monomers containing fluorocarbon chemical bonds on the side chains to obtain polymers with more fluorocarbon bonds (F-C) in the molecular structure. Fluorocarbon coating is a coating with fluorine-containing resin as the main film-forming substance. Its main feature is that the F-C bond contained in the resin has large bond energy and small bond length, and the C-C bond is protected by the steric shielding effect of fluorine atoms. Atoms are not easy to invade,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D187/00C09D7/61C09D7/63C09D7/65C08G83/00
CPCC08G83/00C08L2205/035C09D187/00C09D7/61C09D7/63C09D7/65C08L29/14C08L71/02C08L61/28C08L83/04C08K5/42C08K3/34
Inventor 张明张旭沈桂军张洋
Owner 安徽博泰氟材料科技有限公司
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