CN101967349A - PVF (Polyvinyl Fluoride) paint and preparation method thereof - Google Patents

Abstract

The invention discloses a PVF paint and a preparation method thereof. The PVF paint is composed of: 30-50% of organic silicon prepolymer, 10-20% of solvent, 5-20% of PVF, tripolyphosphoric acid Aluminum is 10-20%, talcum powder is 16-29%, and additives are 0.5-1%. The preparation method is to firstly mix the liquid components in the technical formula components uniformly, then add the solid components in the components and stir evenly, then grind on a grinder, and finally pack in barrels. The invention is single-component, easy to use, good in chemical corrosion resistance, high bonding strength and impact resistance.

Description

A kind of PVF coating and preparation method thereof

Technical field

The invention belongs to technical field of coatings, relate to a kind of inner-wall paint of anti-the pail pack, more specifically relate to a kind of PVF coating and preparation method thereof.

Background technology

Along with development to chemical transport, anti-corrosion requirement to the chemical pail pack constantly improves, how to improve the antiseptic property of chemical pail pack inwall, guarantee in the chemical corrosion environment of harshness, can prolong pail pack work-ing life, reduce the leakage of chemical in transportation, guarantee transportation safety, avoiding the pollution to environment is the technical field of coatings urgent problem.

Summary of the invention

Order of the present invention is in order to solve chemical pail pack corrosion resistant technical problem in transportation, a kind of chemicals-resistant corrosive inwall protective coating to be provided.

In order to realize above-mentioned target, technical scheme of the present invention is:

A kind of PVF coating, by mass percentage content by: organosilicon preformed polymer is 30-50%, and solvent is 10-20%, PVF is 5-20%, and aluminium triphosphate is 10-20%, and talcum powder is 16-29%, auxiliary agent is that the component of 0.5-1% is formed, and wherein the molecular structure of organosilicon preformed polymer is:

Wherein, it is crosslinked that the part of molecular structure alkyl can provide, and organosilicon can provide the effect of dispersion to PVF, causes the coating coating evenly, and the coating densification realizes the rot-resistant effect.

Above-mentioned described solvent is meant the mixture of your ketone of acetone, different fluorine and ethyl acetate, by quality than acetone: your ketone: ethyl acetate=3:30:2 of different fluorine.

In order to realize above-mentioned target, another technical scheme of the present invention is:

A kind of preparation method of PVF coating mixes the liquid ingredient in the technical formula component earlier, and the solid ingredient that adds then in the component stirs, and grinds on shredder again, last loading barrel packaging.

The advantage and the beneficial effect of a kind of PVF coating of the present invention and preparation method thereof are mainly reflected in:

1, single component is double-deck curing system, and organosilicon preformed polymer can be crosslinked voluntarily; PVF can at high temperature melt film forming simultaneously;

2, have high bond strength and good cementability and solidity to corrosion.

Embodiment

In order to deepen the understanding of the present invention, the present invention is described in further detail below by embodiment, and described embodiment only is used to illustrate technical solution of the present invention, do not constitute the qualification to protection domain of the present invention.

Embodiment 1:

One, by following set of dispense than (quality percentage composition):

Organic-silicon-modified prepolymer 30%,

Solvent 20%,

PVF 5%，

Aluminium triphosphate 20%,

Talcum powder 24%,

Auxiliary agent 1%.

Two, preparation method:

Earlier the liquid ingredient in the technical formula component is mixed, the solid ingredient that adds then in the component stirs, and grinds on shredder again, last loading barrel packaging.Its technical scheme is the PVF scattering problem preferably, makes the coating of formation smooth smooth, and sticking power is 1 grade.

Embodiment 2:

One, by following set of dispense than (quality percentage composition):

Organic-silicon-modified prepolymer 40%,

Solvent 10%,

PVF 6%，

Aluminium triphosphate 14%,

Talcum powder 29%,

Auxiliary agent 1%.

Two, preparation method:

The preparation method of present embodiment is with embodiment 1.Compare corrosion-resistant raising in this enforcement with embodiment, but the back phenomenon occurs, sticking power is 1 grade.

Embodiment 3:

One, by following set of dispense than (quality percentage composition):

Organic-silicon-modified prepolymer 35%,

Solvent 15%,

PVF 7%，

Aluminium triphosphate 13%,

Talcum powder 29%,

Auxiliary agent 1%.

Two, preparation method:

The preparation method of present embodiment is with embodiment 1.Compare with embodiment 1,2, because PVF content reduces, snappiness and hardness descend to some extent, and also there is deterioration in antiseptic property.

Embodiment 4:

One, by following set of dispense than (quality percentage composition):

Organic-silicon-modified prepolymer 45%,

Solvent 20%,

PVF 5%，

Aluminium triphosphate 13%,

Talcum powder 16%,

Auxiliary agent 1%.

Two, preparation method:

The preparation method of present embodiment is with embodiment 1.Compare with embodiment 1,2,3, coating meat better performances, sticking power power are 1 grade.

Embodiment 5:

One, by following set of dispense than (quality percentage composition):

Organic-silicon-modified prepolymer 30%,

Solvent 20%,

PVF 10%，

Aluminium triphosphate 20%,

Talcum powder 19.5%,

Auxiliary agent 0.5%.

Two, preparation method:

The preparation method of present embodiment is with embodiment 1, and present embodiment is anticorrosion good with the sticking power tool.

Embodiment 6:

One, by following set of dispense than (quality percentage composition):

Organic-silicon-modified prepolymer 45%,

Solvent 15%,

PVF 13%，

Aluminium triphosphate 10%,

Talcum powder 16%,

Auxiliary agent 1%.

Two, preparation method:

The preparation method of present embodiment is with embodiment 1.Coating is smooth, and sticking power is 1 grade, and shock resistance has reached national standard.

Embodiment 7:

One, by following set of dispense than (quality percentage composition):

Organic-silicon-modified prepolymer 30%,

Solvent 20%,

PVF 20%，

Aluminium triphosphate 10%,

Talcum powder 19%,

Auxiliary agent 1%.

Two, preparation method:

The preparation method of present embodiment is with embodiment 1.

Embodiment 8:

One, by following set of dispense than (quality percentage composition):

Organic-silicon-modified prepolymer 50%,

Solvent 20%,

PVF 5%，

Aluminium triphosphate 8%,

Talcum powder 16%,

Auxiliary agent 1%.

Two, preparation method:

The preparation method of present embodiment is with embodiment 1.

Embodiment 9:

One, by following set of dispense than (quality percentage composition):

Organic-silicon-modified prepolymer 45%,

Solvent 10%,

PVF 15%，

Aluminium triphosphate 10%,

Talcum powder 19%,

Auxiliary agent 1%.

Two, preparation method:

The preparation method of present embodiment is with embodiment 1.

Claims (2)

1. A kind of PVF coating, it is characterized in that, by mass percent content by: organosilicon prepolymer is 30-50%, solvent is 10-20%, PVF is 5-20%, aluminum phosphate tripolyphosphate is 10-20% %, talc powder is 16-29%, and additives are 0.5-1%. The molecular structure of silicone prepolymer is:

. 2. PVF coating as claimed in claim 1, is characterized in that, described solvent refers to the mixture of acetone, isophorone and ethyl acetate, by mass ratio acetone: isophorone: ethyl acetate=3 :30:2.