CN104341802B - A kind of antioxidation aluminium pigment and preparation method thereof - Google Patents

Abstract

The invention discloses a kind of antioxidation aluminium pigment, it is characterized in that being made up of the raw material of following weight parts: micron-size spherical aluminium powder 40-60, pentalyn 0.5-1, tetraethoxy 8-12,200# solvent oil 20-30, zinc dialkyl dithiophosphate 0.1-0.2, dodecanamide propyl amine oxide 0.1-0.2, silane coupling A-151? 0.3-0.5, pyrophyllite in powder 1-2, ptfe micropowder 4-6, fumaric acid 0.02-0.05, silane resin acceptor kh-550? 0.5-1, ethyl acetate 8-10, jasmal 1-2, auxiliary agent 2-4.Aluminium pigment of the present invention has good oxidation-resistance and organic solvent system polymolecularity, and stability in storage is high, and colour stability is good, and has long-acting automatically cleaning clean effect, practical.

Description

A kind of antioxidation aluminium pigment and preparation method thereof

Technical field

The present invention relates to metallic pigment field, be specifically related to a kind of antioxidation aluminium pigment and preparation method thereof.

Background technology

Metallic pigment to refer to by the particle of metal or alloy or thin slice through levigate and obtained pigment, have metalluster, can give goods metallic color outward appearance, form level and smooth thin layer film, have unique ornamental and opacifying power, be widely used in coating industry.Due to the chemical property of metallic pigment, its stability in the environment usually receives restriction, and easily causes the aspect such as safety and quality product problem, therefore often carries out finishing to improve the problems referred to above to metallic pigment goods.

If the surface of object has super-hydrophobicity, the globule just at its surface infiltration, will can not be taken away dirt and have self-cleaning effect.The product with self_cleaning effect, owing to having environmental protection and saving the advantages such as cleaning charge, is more and more subject to the attention in market, has business-like value.Utilizing lotus leaf effect to carry out chemically modified in the coarse microtexture of surface construction or effects on surface, to introduce hydrophobic components be the conventional approach realizing super-hydrophobicity at present.

Summary of the invention

The object of this invention is to provide a kind of antioxidation aluminium pigment with self_cleaning effect.

The present invention is achieved by the following technical solutions:

A kind of antioxidation aluminium pigment, it is made up of the raw material of following weight parts:

Micron-size spherical aluminium powder 40-60, pentalyn 0.5-1, tetraethoxy 8-12,200# solvent oil 20-30, zinc dialkyl dithiophosphate 0.1-0.2, dodecanamide propyl amine oxide 0.1-0.2, silane coupling A-1510.3-0.5, pyrophyllite in powder 1-2, ptfe micropowder 4-6, fumaric acid 0.02-0.05, silane resin acceptor kh-550 0.5-1, ethyl acetate 8-10, jasmal 1-2, auxiliary agent 2-4;

Composite assistant is made up of the raw material of following weight part:

Crambe seed oil 1-2, Quicifal 0.01-0.02, amine hydroxybenzene 0.5-1, Phosphate of Polyoxyethylene Isooctyl Ether 0.1-0.2, propylben 0.1-0.2, micro mist wax 0.5-1, plam oil 10-20, tea-seed oil 10-20;

The preparation method of composite assistant:

Plam oil, tea-seed oil and Crambe seed oil are mixed, after being heated to 80-90 DEG C, adds Phosphate of Polyoxyethylene Isooctyl Ether and Quicifal, after stirring 10-20min, be cooled to room temperature, add all the other raw material stirring evenly, to obtain final product.

A preparation method for antioxidation aluminium pigment, comprises the following steps:

(1) micron-size spherical aluminium powder, auxiliary agent and 200# solvent oil are dropped in ball mill, 30-40 rev/min of ball milling 6-8h, after screening, filtration, washing, obtain micron-sized flake aluminum;

(2) mixed solvent of ammoniacal liquor, distilled water and ethanol is prepared as component A, with alcohol dilution tetraethoxy as B component; Micron-sized flake aluminum is added in appropriate dehydrated alcohol, add silane coupling A-151, after stirred under nitrogen atmosphere 0.5-1h, with 1-2 drip/rate of addition of s drips component A and B component simultaneously respectively, dropping limit, limit is stirred, dropwise rear 40-45 DEG C of reaction 6-8h, with absolute ethanol washing after suction filtration, vacuum-drying, weight ratio=the 1:2:5 of ammoniacal liquor, distilled water and ethanol in described component A, described ammonia concn is 25%, the weight ratio=1:2 of ethanol and tetraethoxy in described B component;

(3) in reaction vessel, add aluminium powder, pyrophyllite in powder and ethanol in proper amount after process in (2), add silane resin acceptor kh-550 after being uniformly mixed, 60-80 DEG C of heated and stirred back flow reaction 3-6h, repeatedly washs rear drying with ethanol, obtains mixed powder;

(4) by weight ptfe micropowder: ammoniacal liquor=1:4 prepares the mixture of ptfe micropowder and ammoniacal liquor as component C, the mixed powder obtained in (3) and component C are added reaction vessel jointly, filter after stirred under nitrogen atmosphere reaction 1-2h, 120-150 DEG C of process 10-20min after filter cake 40-50 DEG C of dry 12-24h, in described component C, ammonia concn is 5%;

(5) after mixing with all the other raw materials, 50-60 DEG C is stirred 1-2h, takes out final vacuum and is drying to obtain.

Advantage of the present invention is:

1., by the improvement of technique and formula, make aluminium pigment have good oxidation-resistance and organic solvent system polymolecularity, stability in storage is high, and colour stability is good, long service life;

2., by finishing, form the compound coating of silicon-dioxide and tetrafluoroethylene on aluminium powder surface, form super-drainage structure, make aluminium pigment have self_cleaning effect, long-acting anti-pollution, light transmission is good, good mechanical performance.

Embodiment

Non-limiting examples of the present invention is as follows:

Embodiment 1

A kind of antioxidation aluminium pigment, is prepared from by the component raw material of following weight (kg):

Micron-size spherical aluminium powder 50, pentalyn 0.8, tetraethoxy 10,200# solvent oil 25, zinc dialkyl dithiophosphate 0.15, dodecanamide propyl amine oxide 0.15, silane coupling A-1510.4, pyrophyllite in powder 1.5, ptfe micropowder 5, fumaric acid 0.04, silane resin acceptor kh-550 0.8, ethyl acetate 9, jasmal 1.5, auxiliary agent 3;

Wherein, composite assistant is made up of the raw material of following weight (kg):

Crambe seed oil 1.5, Quicifal 0.015, amine hydroxybenzene 0.8, Phosphate of Polyoxyethylene Isooctyl Ether 0.15, propylben 0.15, micro mist wax 0.8, plam oil 15, tea-seed oil 15;

The preparation method of composite assistant:

Plam oil, tea-seed oil and Crambe seed oil are mixed, after being heated to 90 DEG C, adds Phosphate of Polyoxyethylene Isooctyl Ether and Quicifal, after stirring 10min, be cooled to room temperature, add all the other raw material stirring evenly, to obtain final product.

Its preparation method comprises the following steps:

(1) micron-size spherical aluminium powder, auxiliary agent and 200# solvent oil are dropped in ball mill, 30 revs/min of ball milling 8h, after screening, filtration, washing, obtain micron-sized flake aluminum;

(2) mixed solvent of ammoniacal liquor, distilled water and ethanol is prepared as component A, with alcohol dilution tetraethoxy as B component; Micron-sized flake aluminum is added in appropriate dehydrated alcohol, add silane coupling A-151, after stirred under nitrogen atmosphere 0.5h, drip component A and B component respectively with the rate of addition of 1/s, dropping limit, limit is stirred simultaneously, dropwise rear 40 DEG C of reaction 6h, with absolute ethanol washing after suction filtration, vacuum-drying, the weight ratio=1:2:5 of ammoniacal liquor, distilled water and ethanol in described component A, described ammonia concn is 25%, the weight ratio=1:2 of ethanol and tetraethoxy in described B component;

(3) in reaction vessel, add aluminium powder, pyrophyllite in powder and ethanol in proper amount after process in (2), add silane resin acceptor kh-550 after being uniformly mixed, 80 DEG C of heated and stirred back flow reaction 3h, repeatedly wash rear drying with ethanol, obtain mixed powder;

(4) by weight ptfe micropowder: ammoniacal liquor=1:4 prepares the mixture of ptfe micropowder and ammoniacal liquor as component C, the mixed powder obtained in (3) and component C are added reaction vessel jointly, filter after stirred under nitrogen atmosphere reaction 2h, 140 DEG C of process 10min after filter cake 40 DEG C of dry 24h, in described component C, ammonia concn is 5%;

(5) mix latter 60 DEG C with all the other raw materials and stir 1h, take out final vacuum and be drying to obtain.

Through inspection, the aluminium pigment appearance of film uniform ground of the present embodiment, have good metalluster, mechanical property is strong.

Claims (2)

1. an antioxidation aluminium pigment, is characterized in that it is made up of the raw material of following weight parts:

Micron-size spherical aluminium powder 40-60, pentalyn 0.5-1, tetraethoxy 8-12,200# solvent oil 20-30, zinc dialkyl dithiophosphate 0.1-0.2, dodecanamide propyl amine oxide 0.1-0.2, silane coupling A-1510.3-0.5, pyrophyllite in powder 1-2, ptfe micropowder 4-6, fumaric acid 0.02-0.05, silane resin acceptor kh-550 0.5-1, ethyl acetate 8-10, jasmal 1-2, auxiliary agent 2-4;

Described auxiliary agent is made up of the raw material of following weight part:

Crambe seed oil 1-2, Quicifal 0.01-0.02, amine hydroxybenzene 0.5-1, Phosphate of Polyoxyethylene Isooctyl Ether 0.1-0.2, propylben 0.1-0.2, micro mist wax 0.5-1, plam oil 10-20, tea-seed oil 10-20;

The preparation method of described auxiliary agent is:

Plam oil, tea-seed oil and Crambe seed oil are mixed, after being heated to 80-90 DEG C, adds Phosphate of Polyoxyethylene Isooctyl Ether and Quicifal, after stirring 10-20min, be cooled to room temperature, add all the other raw material stirring evenly, to obtain final product.

2. the preparation method of antioxidation aluminium pigment according to claim 1, is characterized in that, comprise the following steps:

(1) micron-size spherical aluminium powder, auxiliary agent and 200# solvent oil are dropped in ball mill, 30-40 rev/min of ball milling 6-8h, after screening, filtration, washing, obtain micron-sized flake aluminum;

(2) mixed solvent of ammoniacal liquor, distilled water and ethanol is prepared as component A, with alcohol dilution tetraethoxy as B component; Micron-sized flake aluminum is added in appropriate dehydrated alcohol, add silane coupling A-151, after stirred under nitrogen atmosphere 0.5-1h, with 1-2 drip/rate of addition of s drips component A and B component simultaneously respectively, dropping limit, limit is stirred, dropwise rear 40-45 DEG C of reaction 6-8h, with absolute ethanol washing after suction filtration, vacuum-drying, weight ratio=the 1:2:5 of ammoniacal liquor, distilled water and ethanol in described component A, described ammonia concn is 25%, the weight ratio=1:2 of ethanol and tetraethoxy in described B component;

(3) in reaction vessel, add aluminium powder, pyrophyllite in powder and ethanol in proper amount after process in (2), add silane resin acceptor kh-550 after being uniformly mixed, 60-80 DEG C of heated and stirred back flow reaction 3-6h, repeatedly washs rear drying with ethanol, obtains mixed powder;

(4) by weight ptfe micropowder: ammoniacal liquor=1:4 prepares the mixture of ptfe micropowder and ammoniacal liquor as component C, the mixed powder obtained in (3) and component C are added reaction vessel jointly, filter after stirred under nitrogen atmosphere reaction 1-2h, 120-150 DEG C of process 10-20min after filter cake 40-50 DEG C of dry 12-24h, in described component C, ammonia concn is 5%;

(5) after mixing with all the other raw materials, 50-60 DEG C is stirred 1-2h, takes out final vacuum and is drying to obtain.