CN106084895A - A kind of Flame-retardant iron oxide black pigment and preparation method thereof - Google Patents

Abstract

The invention discloses a kind of Flame-retardant iron oxide black pigment, it is characterized in that being prepared by the raw material of following weight parts: ferrous sulfate 60 80, sepiolite powder 10 15, brucite powder 10 15, antimony oxide 35, silane coupler KH 550 0.2 0.4, water-soluble poly ammonium phosphate 0.2 0.4, Borax 0.1 0.2, disodiumedetate 0.1 0.2, dispersing aid 10 15.The feature that the black iron oxide pigment of the present invention had both had strong coloring force, processability is good, particle diameter is bigger simultaneously, it is difficult to fly upward diffusion during producing, using, can effectively reduce the pollution to environment and the threat to health, also has effect of fire protection flame retarding, be conducive to improving safety in utilization, practical.

Description

A kind of Flame-retardant iron oxide black pigment and preparation method thereof

Technical field

The present invention relates to black iron oxide pigment field, be specifically related to a kind of Flame-retardant iron oxide black pigment and preparation method thereof.

Background technology

Black iron oxide pigment is a kind of conventional inorganic pigment, is mainly composed of ferroso-ferric oxide, its tone attractive in appearance and Durable, covering power and tinting strength, tinting power are the highest, have good alkali resistance, light fastness simultaneously, and range of application is quite varied, including The fields such as building materials, coating, ink, rubber, plastics, pottery, glass, five metals glass polishing, greasepaint drawing, electronics industry. Black iron oxide pigment is mainly powder, produce, use during easily fly upward, be unfavorable for safety in production, environmental conservation and Health, is changed black iron oxide pigment into graininess by powder and advantageously accounts for this problem.Meanwhile, along with economic development With the raising of people's living standard, the Yield and quality of black iron oxide pigment and the demand of performance improvement are grown with each passing day, develop merit Energyization, diversified black iron oxide pigment, accord with the demands of the market, and has good development prospect.

Summary of the invention

It is an object of the invention to provide a kind of Flame-retardant iron oxide black pigment, strong coloring force, stable performance, safety and environmental protection.

The present invention is achieved by the following technical solutions:

A kind of Flame-retardant iron oxide black pigment, it is to be prepared by the raw material of following weight parts:

Ferrous sulfate 60-80, sepiolite powder 10-15, brucite powder 10-15, antimony oxide 3-5, silane resin acceptor kh-550 0.2-0.4, water-soluble poly ammonium phosphate 0.2-0.4, Borax 0.1-0.2, disodiumedetate 0.1-0.2, dispersing aid 10- 15；

Wherein dispersing aid is prepared by the raw material of following weight parts: sodium lignin sulfonate 0.5-1, dodecyldimethylammonium hydroxide inner salt 0.3-0.5, sodium gluconate 3-5, Polyethylene Glycol 2-4, Tween-60 0.1-0.2, water 20-30；The preparation method of dispersing aid It is first to be added to the water sodium gluconate and Polyethylene Glycol to be completely dissolved, adds remaining raw material 60-80 DEG C, 600-1000r/ Min stirs 15-30min, to obtain final product.

The preparation method of a kind of Flame-retardant iron oxide black pigment, comprises the following steps:

(1) after sepiolite powder, brucite powder and antimony oxide being mixed, co-ground is uniform, crosses 100-200 mesh sieve, then adds Entering silane resin acceptor kh-550 and stir 0.5-1h in 120-150 DEG C, the water being initially charged 2-3 times of weight after cooling stirs, then Add dispersing aid ultrasonic disperse 10-15min, obtain mixed slurry；

(2) it is mixed and stirred for, until being completely dissolved, being subsequently adding in (1) with water by solid-liquid weight ratio 1:5-1:6 by ferrous sulfate Mixed slurry dispersed with stirring uniform, temperature be 80-85 DEG C, pH be 7-7.5 under the conditions of be passed through air oxidation, after reaction terminates Filter and be dried completely, obtain black composite iron oxide granule；

(3) remaining raw material is added stirring in suitable quantity of water and, until being completely dissolved, be the most uniformly sprayed at the complex iron oxide in (2) In black granule, obtain Flame-retardant iron oxide black pigment.

The invention have the advantage that

The present invention is using sepiolite powder, brucite powder and antimony oxide as base material, using silane resin acceptor kh-550 as modification Agent carries out surface modification, and iron oxide black is coated on its surface securely, makes the black composite iron oxide granule of formation have well Dispersibility and granularity uniform, suitable；Meanwhile, in conjunction with the interpolation of remaining raw material, the black iron oxide pigment prepared is made both to have The feature that strong coloring force, processability are good, particle diameter is relatively big simultaneously, is difficult to fly upward diffusion, can effectively reduce during producing, using Pollution to environment and the threat to health, also effect of fire protection flame retarding, be conducive to improving safety in utilization, practicality By force.

Detailed description of the invention

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

A kind of Flame-retardant iron oxide black pigment, is prepared from by the component raw material of following weight (kg):

Ferrous sulfate 7, sepiolite powder 12, brucite powder 12, antimony oxide 4, silane resin acceptor kh-550 0.3, water-soluble poly Ammonium phosphate 0.3, Borax 0.15, disodiumedetate 0.15, dispersing aid 12；

Wherein dispersing aid is prepared by the raw material of following weight parts: sodium lignin sulfonate 0.8, dodecyldimethylammonium hydroxide inner salt 0.4, sodium gluconate 4, Polyethylene Glycol 3, Tween-60 0.15, water 25；The preparation method of dispersing aid is first by gluconic acid Sodium and Polyethylene Glycol are added to the water and are completely dissolved, and add remaining raw material 80 DEG C, 1000r/min stirs 15min, to obtain final product.

The preparation method of Flame-retardant iron oxide black pigment comprises the following steps:

(1) after sepiolite powder, brucite powder and antimony oxide being mixed, co-ground is uniform, crosses 200 mesh sieves, is subsequently adding silicon Alkane coupling agent KH-550 stirs 0.5h in 120 DEG C, and the water being initially charged 3 times of weight after cooling stirs, and adds dispersing aid And ultrasonic disperse 10min, obtain mixed slurry；

(2) being mixed and stirred for until be completely dissolved by solid-liquid weight ratio 1:5 with water by ferrous sulfate, be subsequently adding in (1) is mixed Conjunction slurry agitation is uniformly dispersed, temperature be 85 DEG C, pH be 7-7.5 under the conditions of be passed through air oxidation, reaction is filtered also after terminating It is dried completely, obtains black composite iron oxide granule；

(3) remaining raw material is added stirring in suitable quantity of water and, until being completely dissolved, be the most uniformly sprayed at the complex iron oxide in (2) In black granule, obtain Flame-retardant iron oxide black pigment.

Above-mentioned prepared black iron oxide pigment performance indications such as following table:

Test index	Test result
		The hydrotrope (%)	0.78
105 DEG C of volatile matters (%)	0.53
		Tinctorial yield (%)	97.8

Claims (2)

1. a Flame-retardant iron oxide black pigment, it is characterised in that it is to be prepared by the raw material of following weight parts:

Ferrous sulfate 60-80, sepiolite powder 10-15, brucite powder 10-15, antimony oxide 3-5, silane resin acceptor kh-550 0.2-0.4, water-soluble poly ammonium phosphate 0.2-0.4, Borax 0.1-0.2, disodiumedetate 0.1-0.2, dispersing aid 10- 15；

Described dispersing aid is prepared by the raw material of following weight parts: sodium lignin sulfonate 0.5-1, dodecyl dimethyl Radix Betae Alkali 0.3-0.5, sodium gluconate 3-5, Polyethylene Glycol 2-4, Tween-60 0.1-0.2, water 20-30；The system of described dispersing aid Preparation Method is first to be added to the water sodium gluconate and Polyethylene Glycol to be completely dissolved, and adds remaining raw material 60-80 DEG C, 600- 1000r/min stirs 15-30min, to obtain final product.

The preparation method of a kind of Flame-retardant iron oxide black pigment the most according to claim 1, it is characterised in that include following step Rapid:

(1) after sepiolite powder, brucite powder and antimony oxide being mixed, co-ground is uniform, crosses 100-200 mesh sieve, then adds Entering silane resin acceptor kh-550 and stir 0.5-1h in 120-150 DEG C, the water being initially charged 2-3 times of weight after cooling stirs, then Add dispersing aid ultrasonic disperse 10-15min, obtain mixed slurry；

(2) it is mixed and stirred for, until being completely dissolved, being subsequently adding in (1) with water by solid-liquid weight ratio 1:5-1:6 by ferrous sulfate Mixed slurry dispersed with stirring uniform, temperature be 80-85 DEG C, pH be 7-7.5 under the conditions of be passed through air oxidation, after reaction terminates Filter and be dried completely, obtain black composite iron oxide granule；

(3) remaining raw material is added stirring in suitable quantity of water and, until being completely dissolved, be the most uniformly sprayed at the complex iron oxide in (2) In black granule, obtain Flame-retardant iron oxide black pigment.