CN103408972B

CN103408972B - High-glossiness modified calcium carbonate for air conditioner housings and preparation method thereof

Info

Publication number: CN103408972B
Application number: CN201310277949.1A
Authority: CN
Inventors: 陈永忠
Original assignee: QINGYANG YONGCHENG CALCIUM INDUSTRY Co Ltd
Current assignee: QINGYANG YONGCHENG CALCIUM INDUSTRY Co Ltd
Priority date: 2013-07-03
Filing date: 2013-07-03
Publication date: 2015-04-22
Anticipated expiration: 2033-07-03
Also published as: CN103408972A

Abstract

The invention provides a high-glossiness modified calcium carbonate for air conditioner housings, which is prepared from the following raw materials in parts by weight: 95-100 parts of ground calcium carbonate, 2-3 parts of ultrafine barium sulfate, 1-2 parts of polyoxyethylene oleate, 0.1-0.2 part of sodium dodecyl benzene sulfonate, 0.2-0.3 part of Span-60, 0.2-0.4 part of ferrocene, 0.1-0.2 part of ammonium persulfate, 0.2-0.3 part of microcrystalline wax, 0.2-0.4 part of barium stearate, 2-3 parts of isopropyl tri(dioctylpyrophosphate)titanate, 0.5-0.6 part of titanium dioxide, 1-2 parts of tri(2-ethylhexyl)acetylcitrate, 0.1-0.2 part of decabromodiphenylethane, 1-2 parts of PP resin powder and 0.1-0.2 part of anti-aging agent TPPD. The preparation method comprises the following steps: drying calcium carbonate, proportionally and sequentially adding the other raw materials in batches, thoroughly mixing in a high-speed stirrer, drying and grinding. The modified calcium carbonate provided by the invention has the advantages of favorable dispersity and favorable flame retardancy, and can lower the cost and enhance the working properties and surface glossiness of the product when being used in PP plastic materials.

Description

A kind of high gloss air conditioner housing modified calcium carbonate and preparation method thereof

Technical field

The present invention relates to mineral filler field, be specifically related to a kind of high gloss air conditioner housing modified calcium carbonate and preparation method thereof.

Background technology

Water-ground limestone is a kind of conventional mineral filler, because of wide, the low price of originating etc., is widely used in the fields such as rubber, plastics, coating.But water-ground limestone surface hydrophilic oleophobic, specific surface area is large, surface energy is high, very easily reunite between particle, when directly or a large amount of fill in organic basis material time, not only be difficult to disperse equably, and very weak with the bonding force of matrix, cause some degradation of two-phase interface defect, matrix material.Therefore, in order to widen its Application Areas, modification must be carried out to heavy calcium carbonate surface, making its surperficial oleophilic drainage, strengthen the consistency with organic matrix, improve the dispersiveness in organic matrix, improve the performance of matrix material.

Summary of the invention

The invention provides a kind of high gloss air conditioner housing modified calcium carbonate and preparation method thereof.

The technical solution used in the present invention is as follows:

A kind of high gloss air conditioner housing modified calcium carbonate, is characterized in that, be prepared from by the feed composition of following weight part:

Water-ground limestone 95-100, ultra-fine barium sulfate 2-3, polyoxyethylene oleic acid ester 1-2, Sodium dodecylbenzene sulfonate 0.1-0.2, Arlacel-60 0.2-0.3, ferrocene 0.2-0.4, ammonium persulphate 0.1-0.2, microcrystalline wax 0.2-0.3, barium stearate 0.2-0.4, sec.-propyl three (dioctylphyrophosphoric acid acyloxy) titanic acid ester 2-3, titanium dioxide 0.5-0.6, tri(2-ethylhexyl)acetocitrate 1-2, TDE 0.1-0.2, PP resin-oatmeal 1-2, anti-aging agent TPPD0.1-0.2.

The preparation method of described high gloss air conditioner housing modified calcium carbonate, is characterized in that: concrete operations are:

First water-ground limestone is dried to moisture content less than 0.5% at 90-95 DEG C of temperature, then join in high-speed mixer, by titanium dioxide, tri(2-ethylhexyl)acetocitrate, TDE, PP resin-oatmeal, anti-aging agent TPPD, mix by formula rate, then join in calcium carbonate, be warmed up to 95-100 DEG C of high-speed stirring 5-6 minute, adding ultra-fine barium sulfate 2-3 successively in proportion, polyoxyethylene oleic acid ester 1-2, Sodium dodecylbenzene sulfonate 0.1-0.2, Arlacel-60 0.2-0.3, ferrocene 0.2-0.4, ammonium persulphate 0.1-0.2, microcrystalline wax 0.2-0.3, barium stearate 0.2-0.4, after the speed high-speed stirring 5-6 of 800-1000 rev/min minute, finally add titanate coupling agent TMC-TTS, with the speed high-speed stirring 15-19 minute of 1200-1300 rev/min, then dry, obtain modified calcium carbonate.。

Beneficial effect of the present invention:

The present invention with the addition of kinds of surface treatment agent and functional agent on the basis of existing water-ground limestone modification, the modified calcium carbonate of gained has particle diameter and is less than 0.1um, size of particles is even, specific surface area is large, the feature that application performance is better than ordinary calcium carbonate greatly, the modified calcium carbonate that obtains are dispersed and consistency is good in the plastic, the add-on of filler can be improved, reduce material cost; When modification by adding a small amount of protective agent, fire retardant, substantially increase anti-aging, the flame retardant properties of plastics, be applied in the production of air conditioner housing, aging dose, the consumption of fire retardant can be reduced, further reduction material cost, increases economic efficiency, simultaneously the adding of ultra-fine barium sulfate, the shell of injection moulding has high-luster, not easily attract dust.

Embodiment

A preparation method for high gloss air conditioner housing modified calcium carbonate,

(kg) takes water-ground limestone 100, ultra-fine barium sulfate 2, polyoxyethylene oleic acid ester 2, Sodium dodecylbenzene sulfonate 0.1, Arlacel-60 0.2, ferrocene 0.3, ammonium persulphate 0.1, microcrystalline wax 0.2, barium stearate 0.4, sec.-propyl three (dioctylphyrophosphoric acid acyloxy) titanic acid ester 2, titanium dioxide 0.5, tri(2-ethylhexyl)acetocitrate 1, TDE 0.2, PP resin-oatmeal 1 by weight, anti-aging agent TPPD 0.1

First water-ground limestone is dried to moisture content less than 0.3% at 95 DEG C of temperature, then join in high-speed mixer, by titanium dioxide, tri(2-ethylhexyl)acetocitrate, TDE, PP resin-oatmeal, anti-aging agent TPPD, mix by formula rate, then join in calcium carbonate, be warmed up to 100 DEG C of high-speed stirring 5-6 minute, adding ultra-fine barium sulfate 2 successively in proportion, polyoxyethylene oleic acid ester 2, Sodium dodecylbenzene sulfonate 0.1, Arlacel-60 0.3, ferrocene 0.2, ammonium persulphate 0.1, microcrystalline wax 0.3, barium stearate 0.3, after the speed high-speed stirring 5-6 of 800-1000 rev/min minute, finally add titanate coupling agent TMC-TTS, with the speed high-speed stirring 15-19 minute of 1200-1300 rev/min, then dry, obtain modified calcium carbonate.

testing data:

The Performance Detection of modified calcium carbonate of the present invention and ordinary calcium carbonate is compared as follows:

Examination criteria:

GB/T1040-92 plastic tensile test method;

GB/T9341-2000 Plastics-Oetermination of flexural properties method;

GB/T1043-93 plastics charpy impact test method;

First measure the tap density of the forward and backward calcium carbonate of modification, then join in resin in the ratio of 30% respectively by calcium carbonate good for modification and unmodified water-ground limestone, make batten, the mechanical property respectively both test, comparing result sees the following form 1.

Table 1

As can be seen from Table 1, the loose bulk density of modified calcium carbonate diminishes, and illustrates that calcium carbonate split fully disperses, and joins that in other material, agglomeration to occur less, and good dispersity, illustrates that modified effect is good; It can also be seen that every mechanical property of modified calcium carbonate is all improved.

Claims

1. a high gloss air conditioner housing modified calcium carbonate, is characterized in that, is prepared from by the feed composition of following weight part:

2. the preparation method of high gloss air conditioner housing modified calcium carbonate according to claim 1, is characterized in that: concrete operations are:

First water-ground limestone is dried to moisture content less than 0.5% at 90-95 DEG C of temperature, then join in high-speed mixer, by titanium dioxide, tri(2-ethylhexyl)acetocitrate, TDE, PP resin-oatmeal, anti-aging agent TPPD, mix by formula rate, then join in calcium carbonate, be warmed up to 95-100 DEG C of high-speed stirring 5-6 minute, adding ultra-fine barium sulfate 2-3 successively in proportion, polyoxyethylene oleic acid ester 1-2, Sodium dodecylbenzene sulfonate 0.1-0.2, Arlacel-60 0.2-0.3, ferrocene 0.2-0.4, ammonium persulphate 0.1-0.2, microcrystalline wax 0.2-0.3, barium stearate 0.2-0.4, after the speed high-speed stirring 5-6 of 800-1000 rev/min minute, finally add titanate coupling agent NDZ-201, with the speed high-speed stirring 15-19 minute of 1200-1300 rev/min, then dry, obtain modified calcium carbonate.