CN101691438A

CN101691438A - ABS color master batch

Info

Publication number: CN101691438A
Application number: CN200910192551A
Authority: CN
Inventors: 刘鹏; 卢俊文
Original assignee: GUANGZHOU BOSI PLASTIC PIGMENTS Ltd CO Ltd
Current assignee: Guangdong Persia Technology Co., Ltd.
Priority date: 2009-09-22
Filing date: 2009-09-22
Publication date: 2010-04-07
Anticipated expiration: 2029-09-22
Also published as: CN101691438B

Abstract

The invention relates to the field of plastic coloring, and discloses an ABS color master batch. The ABS color master batch of the invention consists of the following components in percentage by weight: 20 to 94 percent of carrier, 0.01 to 70 percent of toner, 0 to 40 percent of dispersing agent, 0.1 to 2 percent of thermal stabilizer, 0 to 10 percent of processing agent, and 5 to 70 percent of filling material. The ABS color master batch, when applied to ABS product coloring, has the advantages of improved color stability and small chromatic aberration, and overcomes the defects that the traditional ABS color master batch has unstable colors, large chromatic aberration and the like during coloring. Simultaneously, when the ABS color master batch is applied to ABS coloring, ABS resin is not needed to be pre-dried, and the ABS color master batch can significantly save energy sources and reduce production costs and has an extensive application prospect.

Description

A kind of ABS Masterbatch

Technical field

The present invention relates to field of plastic coloring, specifically, relate to the ABS Masterbatch that a kind of colour stability improves.

Background technology

ABS resin is vinyl cyanide, divinyl and cinnamic terpolymer, can adopt blending method, copolymerization method and emulsion graft polymerization method to produce.Have the ultrahigh impact type by regulating three kinds of monomeric compositions among the ABS, can preparing, the material of the universal and special type various trades mark such as (as electroplating level).Adopt the plastics of ABS material preparation nontoxic, tasteless, rigidity and tough performance satisfy the requirement in fields such as household electrical appliance, light industry stationery sports goods, automotive industry and chemical industry, and its application is very extensive.

At present, the household electrical appliance plastic fittings of many higher gears mainly adopts ABS plastic.Personalized and the differential development trend along with tame electrical article, the color of household electrical appliance develops towards the direction of diversification and bright-colouredization, and painted requirement is also being improved day by day.There is some difference with forming the ABS color and luster that causes the various trades mark for the molecular structure of ABS terpolymer, and this is painted totally unfavorable for goods.

ABS resin absorbs moisture easily, needs drying usually in first being processed, and drying process causes the ABS variable color easily, produces colour fluctuation.

Parts such as white domestic appliances such as air-conditioning, refrigerator and washing machine adopt Masterbatch to carry out when painted, because it is carrier that common Masterbatch generally adopts ABS, adding proportion less (being generally 4phr), exist the flowing property of Masterbatch relatively poor, add content that the color of white domestic appliances requires titanium dioxide in the Masterbatch up to 40～60%, Masterbatch proportion is big, and (what have surpasses 2.0g/cm ³), Masterbatch sinks to the bottom easily and causes Masterbatch macroscopical skewness in plastics when forming process, occurs problems such as color instability, aberration be wayward easily.Along with the client to improving constantly that product appearance requires, ABS plastic processing enterprise has higher requirement to the stability of color.

Summary of the invention

The objective of the invention is at present ABS Masterbatch have the not good problem of colour stability, the ABS Masterbatch that provides a kind of colour stability obviously to be improved when painted.

To achieve these goals, ABS Masterbatch of the present invention is made up of following component and weight percentage: carrier 20～94%, toner 0.01～70%, dispersion agent 0～40%, thermo-stabilizer 0.1～2%, processing aid 0～10%, filler 5～70%.

Described carrier is one or more mixtures in acrylonitritrile-styrene resin (AS), ethylene-acrylic acid copolymer (EAA), ethylene-acrylate copolymer (EBA), ethylene-methyl acrylate multipolymer (EMA), maleic anhydride grafted polyethylene, maleic anhydride inoculated polypropylene, the ethylene-octene copolymer (POE).

Above-mentioned toner can be one or more the mixture in mineral dye, pigment dyestuff or the dyestuff.Described mineral dye is titanium dioxide (titanium dioxide), carbon black or zinc sulfide white etc.; Described pigment dyestuff is azo pigment, heterocycle pigment or miscellany pigment etc.; Described dyestuff is anthraquinone, piceneketone and derivative thereof etc.

Above-mentioned dispersion agent is one or more the mixture in maleic anhydride grafted polyethylene wax, oxidized polyethlene wax, the maleic anhydride inoculated polypropylene wax.The preferential fusion and be coated on the granules of pigments surface in the course of processing of these low-molecular-weight components, thus play the effect that promotes dispersing of pigments and make it stabilization.

Above-mentioned thermo-stabilizer is sulfur-bearing oxidation inhibitor and phosphite antioxidant and composition thereof.Sulfur-bearing oxidation inhibitor comprises 2,4-two-(n-octyl sulphur methylene radical)-6-methylphenol (1520), 2,4-two (dodecyl thiomethyl)-6-methylphenol (1726), Tyox B (DLTP), the two stearyl (DSTP) of thio-2 acid etc.Phosphite ester kind antioxidant comprises three (2, the 4-di-tert-butyl-phenyl) phosphorous acid ester (168), four (2,4-di-tert-butyl-phenyl-4,4 '-xenyl) bis-phosphite (PEPQ), three (nonyl phenyl) phosphorous acid ester (TNPP), distearyl pentaerythritol diphosphite (PEP8) or tetramethylolmethane diphosphite two (2,4-di-tert-butyl phenyl) ester (626) etc.

Above-mentioned processing aid is one or more the mixture in polyoxyethylene glycol and stearate, white mineral oil, polyoxyethylene glycol, citric acid ester plasticizer, the silicone.

Above-mentioned filler is one or more the mixture in surface coated calcium oxide, activated molecular sieve, activated water talcum, activated water bovite or the barium sulfate.

Above-mentioned ABS Masterbatch can adopt the twin screw extruder granulation, also can adopt the granulation of banburying unit.

Compared with prior art, the present invention has following beneficial effect: when ABS Masterbatch provided by the invention is applied to ABS goods painted, do not need in advance ABS resin to be carried out drying treatment, have colour stability raising, the less advantage of aberration simultaneously, problems such as existing ABS Masterbatch color instability when painted, aberration be bigger have been overcome, can replace ABS and draw grain painted, save energy and reducing production costs has a extensive future.

Embodiment

Embodiment 1

At normal temperatures and pressures, with following component and weight percentage: AS 25%, POE 10%, titanium dioxide 40%, oxidation inhibitor 15202%, activated molecular sieve 23%, in high-speed mixer, carried out high-speed mixing 10 minutes, adopt twin screw extruder to carry out melt blending, temperature is controlled at 200 ℃, and screw speed is 200r/min, is uniformly dispersed in vector resin by the shearing of screw rod, the mixing pigment that makes, carry out tie rod pelletizing (the Masterbatch outward appearance is cylindric), drying, packing then, make Masterbatch A1 of the present invention.

Embodiment 2

At normal temperatures and pressures, AS with 70% mixed in high-speed mixer 5 minutes with 30% EMA, adopt twin screw extruder to carry out melt blending, temperature is controlled to be 220 ℃, screw speed is 200r/min, shearing by screw rod, mixingly make two kinds of material mixing even, carry out granulation then, drying makes required Masterbatch carrier of the present invention.

At normal temperatures and pressures, with following component and weight percentage: carrier 35%, titanium dioxide 30%, maleic anhydride grafted polyethylene wax 10%, phosphorous acid ester 1681%, anti-oxidant DLTP 5%, the surface coats calcium oxide 14%, and barium sulfate 5% carried out high-speed mixing 15 minutes in high-speed mixer, adopt twin screw extruder to carry out melt blending, temperature is controlled at 200 ℃, and screw speed is 100r/min, by the shearing of screw rod, the mixing pigment that makes is uniformly dispersed in vector resin, carry out tie rod pelletizing (the Masterbatch outward appearance is cylindric) then, dry, packing makes Masterbatch A2 of the present invention.

Embodiment 3

At normal temperatures and pressures, with following component and weight percentage: carrier A S 25%, EAA32%, titanium dioxide 15%, zinc sulfide white 5%, azo pigment 0.5%, oxidized polyethlene wax 1%, maleic anhydride inoculated polypropylene wax 1.5%, oxidation inhibitor 17261%, phosphorous acid ester 6260.5%, stearate 2%, white mineral oil 2%, activated molecular sieve 4%, activated water talcum 3%, barium sulfate 7.5% mixes in high-speed mixer, adopts the Banbury mixer banburying earlier, adopt screw extrusion press to carry out tie rod pelletizing (the Masterbatch outward appearance is cylindric) then, make Masterbatch of the present invention.

In order to contrast the advantage of the present invention and prior art, compare test according to Comparative Examples 1～2 prescription, the preparation method of Comparative Examples 1～2 preparation method with embodiment 1～2 respectively is identical.

Comparative Examples 1

ABS 40%, titanium dioxide 40%, and EVA wax 5%, EBS 3%, thermo-stabilizer 10100.4%, thermo-stabilizer 168 0.6%, Zinic stearas 0.5%, lime carbonate 10.5%.

Comparative Examples 2

ABS 40%, titanium dioxide 30%, and carbon black 0.1%, EVA wax 4%, EBS 2%, thermo-stabilizer 1,010 0.4%, thermo-stabilizer 168 0.6%, Zinic stearas 0.5%, talcum powder 22.4%.

Masterbatch with embodiment and comparative example preparation adds 4phr injection moulding colour table in ABS plastic, concrete comparing result is as shown in table 1.

Table 1 adopts the evaluation of different carriers coloring effect

From as can be known above-mentioned, adopt ABS Masterbatch of the present invention to be used for the ABS color articles, more painted than existing ABS Masterbatch is that aberration obviously reduces, colour stability is significantly improved.

Masterbatch with embodiment and comparative example preparation adds 4phr injection moulding colour table in the ABS plastic of undried, concrete comparing result is as shown in table 2.

Table 2 adopts the ABS plastic coloring effect of undried to estimate

Claims

1. an ABS Masterbatch is characterized in that being made up of following component and weight percentage: carrier 20～94%, toner 0.01～70%, dispersion agent 0～40%, thermo-stabilizer 0.1～2%, processing aid 0～10%, filler 5～70%;

Described carrier is one or more mixtures in acrylonitritrile-styrene resin, ethylene-acrylic acid copolymer, ethylene-acrylate copolymer, ethylene-methyl acrylate multipolymer, maleic anhydride grafted polyethylene, maleic anhydride inoculated polypropylene, the ethylene-octene copolymer.

2. ABS Masterbatch as claimed in claim 1 is characterized in that described toner is one or more the mixture in mineral dye, pigment dyestuff or the dyestuff.

3. ABS Masterbatch as claimed in claim 1 is characterized in that described dispersion agent is one or more the mixture in maleic anhydride grafted polyethylene wax, oxidized polyethlene wax, the maleic anhydride inoculated polypropylene wax.

4. ABS Masterbatch as claimed in claim 1 is characterized in that described thermo-stabilizer is the mixture of sulfur-bearing oxidation inhibitor and phosphite antioxidant.

5. ABS Masterbatch as claimed in claim 4, it is characterized in that described sulfur-bearing oxidation inhibitor is selected from 2,4-two-(n-octyl sulphur methylene radical)-6-methylphenol, 2, the two stearyl of 4-two (dodecyl thiomethyl)-6-methylphenol, Tyox B or thio-2 acid;

Described phosphite ester kind antioxidant comprises three (2, the 4-di-tert-butyl-phenyl) phosphorous acid ester, four (2,4-di-tert-butyl-phenyl-4,4 '-xenyl) bis-phosphite, three (nonyl phenyl) phosphorous acid ester, distearyl pentaerythritol diphosphite or tetramethylolmethane diphosphite two (2,4-di-tert-butyl phenyl) ester.

6. ABS Masterbatch as claimed in claim 1 is characterized in that described processing aid is one or more the mixture in polyoxyethylene glycol and stearate, white mineral oil, polyoxyethylene glycol, citric acid ester plasticizer, the silicone.

7. ABS Masterbatch as claimed in claim 1 is characterized in that described filler is one or more the mixture in surface coated calcium oxide, activated molecular sieve, activated water talcum, activated water bovite or the barium sulfate.