CN104449257A - Scratch-resistant powder coating - Google Patents

Abstract

The invention discloses a scratch-resistant powder coating. The scratch-resistant powder coating is prepared from the following raw materials in parts by weight: 20 to 30 parts of polyester resin, 1 to 2 parts of polyethylene wax, 0.3 to 0.5 part of OTM-17N, 20 to 25 parts of phenolic resin, 10 to 20 parts of chinastone powder, 1 to 2 parts of aluminum powder, 1 to 2 parts of polyglycidyl ether, 1 to 3 parts of zinc naphthenate, 1 to 2 parts of chlorinated paraffin, 0.2 to 0.4 part of trimethyl hexamethylene diamine, 8-10 parts of compound stuffing, 0.05-0.08 part of fatty alcohol-polyoxyethylene ether, 3 to 5 parts of talcum powder, 2 to 4 parts of calcium hydroxide powder, 0.1 to 0.2 part of diglycol adipate glycol, 1 to 2 parts of dibasic lead phosphate and 0.1 to 0.2 part of triglycidyl isocyanurate. The chinastone powder, talcum powder and compound stuffing are compounded with other raw materials, so that the scratch-resistant powder coating is good in compatibility and has characteristics of good scratch resistance, high hardness and the like.

Description

A kind of scratch resistance powder coating

Technical field

The invention belongs to field, particularly relate to a kind of scratch resistance powder coating.

Background technology

Powder coating is form diverse with general coating, and it exists with the state of fines.Owing to not using solvent, so be called powder coating.The principal feature of powder coating has: have harmless, high-level efficiency, saving resource and environmental protection feature.

Summary of the invention

The object of this invention is to provide a kind of scratch resistance powder coating.

The present invention adopts following technical scheme to achieve these goals:

A kind of scratch resistance powder coating, it is characterized in that, it is obtained by the raw material of following weight parts:

Alkyd resin 20-30, polyethylene wax 1-2, octyl mercaptan tin OTM-17N 0.3-0.5, resol 20-25, porcelain stone powder 10-20, aluminium powder 1-2, polyglycidyl ether 1-2, zinc naphthenate 1-3, clorafin 1-2, trimethylhexamethylenediamine 0.2-0.4, composite filler 8-10, fatty alcohol-polyoxyethylene ether 0.05-0.08, talcum powder 3-5, calcium hydroxide powder 2-4, poly-adipate glycol 0.1-0.2, dibasic lead phosphite 1-2, triglycidyl isocyanurate 0.1-0.2;

Composite filler is obtained by the raw material of following weight parts:

Mud 3-5, nano magnesia 2-4, quaternized imidazoline 1-2, silane coupling agent KH560 0.2-0.4, acrylamide 0.1-0.5, maleic anhydride 1-2, polyoxyethylene glycol 1-2, zinc acetate 0.2-0.4, rutile powder materials 0.2-0.4, carbide slag 5-10, Xylo-Mucine 0.2-0.4, acetic acid 0.2-0.6, polypropylene 0.2-0.4, xanthan gum 0.1-0.2, activated alumina 1-2, barium titanate 2-4;

Composite filler preparation method is:

Carbide slag is soak 1-2 hour in the salt solution of 4-6% in concentration, takes out, dries, ball milling 10-20 minute, then add nano magnesia, quaternized imidazoles, continue ball milling 30-40 minute, take out, with all the other raw material blendings, add suitable quantity of water, after stirring, dry, cross 60-80 mesh sieve, to obtain final product.

Described a kind of scratch resistance powder coating, is characterized in that: preparation method comprises the following steps:

(1) all materials take by proportioning, are placed in high-speed mixer, mix 1-3min under 700-800 rev/min;

(2) extrude with twin screw extruder, screw rod arrangement is standard arrangement, and extrusion temperature controls at 90-100 again ^obetween C;

(3) extruding tablet through being crushed to the particle of 30-60um, obtaining final product.

Beneficial effect of the present invention: the present invention with the addition of porcelain stone powder, talcum powder and composite filler, composite with all the other raw materials, has consistency well, has that scratch resistance is good, hardness high.

Embodiment

A kind of scratch resistance powder coating, it is obtained by the raw material of following weight (kg):

Alkyd resin 20, polyethylene wax 1, octyl mercaptan tin OTM-17N 0.5, resol 25, porcelain stone powder 20, aluminium powder 1, polyglycidyl ether 1, zinc naphthenate 1, clorafin 1, trimethylhexamethylenediamine 0.4, composite filler 10, fatty alcohol-polyoxyethylene ether 0.08, talcum powder 5, calcium hydroxide powder 4, poly-adipate glycol 0.2, dibasic lead phosphite 2, triglycidyl isocyanurate 0.2;

Composite filler is obtained by the raw material of following weight (kg):

Mud 5, nano magnesia 4, quaternized imidazoline 1, silane coupling agent KH560 0.4, acrylamide 0.5, maleic anhydride 2, polyoxyethylene glycol 1, zinc acetate 0.4, rutile powder materials 0.4, carbide slag 5, Xylo-Mucine 0.4, acetic acid 0.6, polypropylene 0.4, xanthan gum 0.2, activated alumina 2, barium titanate 4;

Composite filler preparation method is:

Carbide slag is soak 2 hours in the salt solution of 5% in concentration, takes out, dries, ball milling 20 minutes, then add nano magnesia, quaternized imidazoles, continue ball milling 30 minutes, take out, with all the other raw material blendings, add suitable quantity of water, after stirring, dry, cross 80 mesh sieves, to obtain final product.

Described a kind of scratch resistance powder coating, preparation method comprises the following steps:

(1) all materials take by proportioning, are placed in high-speed mixer, mix 3min under 700 revs/min;

(2) extrude with twin screw extruder, screw rod arrangement is standard arrangement, and extrusion temperature controls 90 again ^obetween C;

(3) extruding tablet through being crushed to the particle of 30-60um, obtaining final product.

The performance test data of gained coating is as follows:

Hardness >=2H;

Washability number of times >=10000 time;

Shock resistance: >=50kg/cm;

Solvent resistant: 240 hours, unchanged;

Salt-fog test (1000h): unchanged.

Claims (2)

1. a scratch resistance powder coating, is characterized in that, it is obtained by the raw material of following weight parts:

Alkyd resin 20-30, polyethylene wax 1-2, octyl mercaptan tin OTM-17N 0.3-0.5, resol 20-25, porcelain stone powder 10-20, aluminium powder 1-2, polyglycidyl ether 1-2, zinc naphthenate 1-3, clorafin 1-2, trimethylhexamethylenediamine 0.2-0.4, composite filler 8-10, fatty alcohol-polyoxyethylene ether 0.05-0.08, talcum powder 3-5, calcium hydroxide powder 2-4, poly-adipate glycol 0.1-0.2, dibasic lead phosphite 1-2, triglycidyl isocyanurate 0.1-0.2;

Composite filler is obtained by the raw material of following weight parts:

Mud 3-5, nano magnesia 2-4, quaternized imidazoline 1-2, silane coupling agent KH560 0.2-0.4, acrylamide 0.1-0.5, maleic anhydride 1-2, polyoxyethylene glycol 1-2, zinc acetate 0.2-0.4, rutile powder materials 0.2-0.4, carbide slag 5-10, Xylo-Mucine 0.2-0.4, acetic acid 0.2-0.6, polypropylene 0.2-0.4, xanthan gum 0.1-0.2, activated alumina 1-2, barium titanate 2-4;

Composite filler preparation method is:

Carbide slag is soak 1-2 hour in the salt solution of 4-6% in concentration, takes out, dries, ball milling 10-20 minute, then add nano magnesia, quaternized imidazoles, continue ball milling 30-40 minute, take out, with all the other raw material blendings, add suitable quantity of water, after stirring, dry, cross 60-80 mesh sieve, to obtain final product.

2. a kind of scratch resistance powder coating according to claim 1, is characterized in that: preparation method comprises the following steps:

(1) all materials take by proportioning, are placed in high-speed mixer, mix 1-3min under 700-800 rev/min;

(2) extrude with twin screw extruder, screw rod arrangement is standard arrangement, and extrusion temperature controls at 90-100 again ^obetween C;

(3) extruding tablet through being crushed to the particle of 30-60um, obtaining final product.