CN106928639A - A kind of method of modifying of ABS plastic - Google Patents
A kind of method of modifying of ABS plastic Download PDFInfo
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- CN106928639A CN106928639A CN201511018628.5A CN201511018628A CN106928639A CN 106928639 A CN106928639 A CN 106928639A CN 201511018628 A CN201511018628 A CN 201511018628A CN 106928639 A CN106928639 A CN 106928639A
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- coupling agent
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/2224—Magnesium hydroxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of method of modifying of ABS plastic, ABS pellets are mixed to get modified ABS with the modified powder being easily corroded.After the modified ABS plastics obtained using this method are roughened, specific surface area is greatly increased, surface hydrophilicity enhancing, the adhesive force increase of coating after plating.Modified ABS plastic only needs the shorter acid etching coarsening time (the acid etching roughening of the time is not enough to corrode PC) can just to reach preferably roughening effect.The compatibility between modified powder and ABS can be improved using coupling agent, good compound interface is obtained；Solvent can improve the using effect of coupling agent；Dispersant can make material mix more uniform, improve modified quality.
Description
Technical field
The present invention relates to a kind of method of modifying of ABS plastic, especially a kind of method of modifying of the ABS plastic being easily roughened.
Background technology
The parts such as mobile phone key are more with ABS and PC as raw material, using double-shot moulding, the surface of the electroplated rear ABS portion of product point is electrodeposited coating, the surface of PC parts is not plated and printing opacity, pattern part (i.e. ABS portion point) surface of product has the metal-like of plated item, and remainder (i.e. PC parts) can be with printing opacity.This technological requirement plated parts are very clear, neat with the boundary of electroless coating part (i.e. ABS portion point and PC parts), to ensure good visual effect.
In the process, to reach good electroplating effect, it is necessary to carry out acid etching roughening (purpose is to be roughened the surface of ABS portion point) to product surface before plating, the PC part surfaces of product can also undergo acid etching roughening.The surface that product ABS portion can at present divided reaches preferable condition needed for being roughened the acid etching roughening process of effect, the time：10~15min, coarsening solution temperature：70 DEG C~75 DEG C, coarsening solution composition be：Chromic acid 350g~350~400g/L of 450g/L and sulfuric acid.Under the conditions of the roughening of such acid etching, PC easily occur can also be roughened, ABS portion point, the obscurity boundary of product surface pattern unintelligible with the boundary of PC parts after plating, influence visual effect；If shortening coarsening time, the surface of ABS portion point may corrode inadequate again, and coating adhesion is not strong after plating, influences electroplating effect.
The content of the invention
(1) technical problem to be solved
The technical problem to be solved in the present invention is to provide a kind of method of modifying of the ABS plastic being easily roughened.
(2) technical scheme
In order to solve the above technical problems, the present invention provides a kind of method of modifying of the ABS plastic being easily roughened, comprise the following steps：
(1) coupling agent is mixed to get mixed liquor with solvent；
(2) the mixed liquor mixing for obtaining modified powder and step (1)；Gained mix products again with dispersant；
(3) mixture that ABS pellets are obtained with step (2) is mixed；The weight ratio of both ABS pellets and modified powder consumption is 100: 2~100: 40；
The weight ratio of coupling agent described in step (1) and consumption both solvent is 1: 5~1: 20；The weight ratio of coupling agent described in step (2) and consumption both modified powder is 1: 100~40: 100；The weight ratio of both the dispersant and modified powder consumption is 0.1: 1~0.1: 5；The coupling agent be titanate coupling agent, KH-550 types silane coupler, KH-560 types silane coupler, KH-570 type silane couplers in one or more, the solvent be benzene,toluene,xylene, N-N dimethylformamides, ethanol, propyl alcohol, butanol, acetone, butanone in one or more；Dispersant used by step (2) be dispersant TAS-2A, dispersant TAS-3A, dispersant TAF in one or more；
The modified powder be anatase-type nanometer titanium dioxide, nano silicon, nano-sized magnesium hydroxide, super fine alumina, ultra-fine barium sulfate, super-fine talc, zirconium dioxide, nano-calcium carbonate, nano zine oxide, zeolite, montmorillonite in one or more；The particle diameter of the modified powder is 10nm~5000nm.
Wherein, the particle diameter of the ABS pellets is 50um~5000um.
Wherein, by step 3) products therefrom melt pelletization.
Wherein, the mixed process in step (2) and step (3) uses stirring mixer, and incorporation time is all 5~20min, and the rotating speed of stirring mixer is 300-3000rpm.
(3) beneficial effect
The present invention mixes ABS with modified powder, modified powder used is more easy to be corroded than ABS, modified powder is corroded and ABS plastic surface is produced small hole during roughening, so that ABS plastic specific surface area is greatly increased, simultaneously promote acid etching coarsening process in ABS plastic C-C keys oxidative cleavage and form hydrophilic hydroxyl and carboxyl, reach further enhance ABS plastic surface hydrophilicity, electroplate after coating adhesive force increase purpose.Modified ABS plastic only needs the shorter acid etching coarsening time (the acid etching roughening of the time is not enough to corrode PC) can just to reach preferably roughening effect.The compatibility between modified powder and ABS can be improved using coupling agent, good compound interface is obtained；Solvent can improve the using effect of coupling agent；Dispersant can make material mix more uniform, improve modified quality.
Specific embodiment
ABS pellets used in following embodiment and comparative example are the ABS of Taiwan Qi Mei Co., Ltds, and model PA-727, particle diameter is 2~5mm；High-speed mixer originates from Yili Machinery Co., Ltd., Zhangjiagang City, and model SHR -10A, rotating speed selects 1500rpm.
Embodiment one
The application process being modified to ABS plastic as follows：
(1) 1 is compared according to weight:10 mixed liquors for preparing titanate coupling agent and absolute ethyl alcohol；
(2) nano-titania particle that particle diameter is 10~25nm is added in high-speed mixer simultaneously with mixed liquor obtained in step (1), wherein the weight ratio of titanate coupling agent and titanium dioxide is 2:100, mixed at high speed is stirred 10 minutes, is sufficiently mixed nano titanium oxide and titanate coupling agent, obtains mixed-powder；
(3) by ABS pellets and mixed-powder obtained in step (2) by weight 100:4 are added in high-speed mixer, and mixed at high speed is stirred 10 minutes, is sufficiently mixed ABS pellets and mixed-powder obtained in step (2), obtains the modified ABS pellet of coated with nanometre TiO 2 particles.
(4) in temperature schedule it is that 160/220/220/220/220/220/220/210 DEG C of (temperature from machine barrel to head) twin-screw rotating speed is melt pelletization on the dual-screw pelletizer of 60rpm by the modified ABS pellet obtained by step (3).
Apply example two
The application process being modified to ABS plastic as follows：
(1) 1 is compared according to weight:15 mixed liquors for preparing silane resin acceptor kh-550 and acetone；
(2) nano-sized magnesium hydroxide particle that particle diameter is 50~100nm is added in high-speed mixer simultaneously with mixed liquor obtained in step (1), wherein the weight ratio of silane coupler and nano-sized magnesium hydroxide is 1:10, mixed at high speed is stirred 10 minutes, is sufficiently mixed nano-sized magnesium hydroxide and silane coupler, obtains mixed-powder；
(3) by dispersant TAS-2A and mixed-powder mixed at high speed in high-speed mixer obtained in step (2), the weight ratio of nano-sized magnesium hydroxide particle is 1 in wherein dispersant TAS-2A and mixed-powder obtained in step (2):1, new mixed-powder is obtained after mixing；
(4) by the new mixed-powder obtained by ABS pellets and step (3) by weight 20:100 are added in high-speed mixer, and mixed at high speed is stirred 10 minutes, is sufficiently mixed new mixed-powder and ABS pellets, obtains the modified ABS pellet of coated with nanometre magnesium hydroxide.
(5) in temperature schedule it is that 160/220/220/220/220/220/220/210 DEG C of (temperature from machine barrel to head) twin-screw rotating speed is melt pelletization on the dual-screw pelletizer of 60rpm by the modified ABS pellet obtained by step (4).
Embodiment three
The application process being modified to ABS plastic as follows：
(1) 1 is compared according to weight：20 mixed liquors for preparing Silane coupling reagent KH-570 and acetone；
(2) super fine alumina and mixed liquor obtained in step (1) are added to high-speed mixer (Yili Machinery Co., Ltd., Zhangjiagang City simultaneously, model SHR -10A, rotating speed selects 1500rpm, in similarly hereinafter), wherein the weight ratio of Silane coupling reagent KH-570 and super fine alumina is 1:10, mixed at high speed is stirred 10 minutes, is sufficiently mixed super fine alumina and Silane coupling reagent KH-570, obtains mixed-powder；
(3) by the mixed-powder obtained by dispersant TAS-3A and step (2) in high-speed mixer mixed at high speed, in wherein dispersant TAS-3A and mixed-powder obtained in step (2) the weight ratio of super fine alumina be 1:2, new mixed-powder is obtained after mixing；
(4) by the new mixed-powder obtained by ABS pellets and step (3) by weight 20:100 are added in high-speed mixer, and mixed at high speed is stirred 10 minutes, is sufficiently mixed new mixed-powder and ABS pellets, obtain the modified ABS pellet that surface covers super fine alumina；
(5) in temperature schedule it is that 160/220/220/220/220/220/220/210 DEG C of (temperature from machine barrel to head) twin-screw rotating speed is melt pelletization on the dual-screw pelletizer of 60rpm by the modified ABS pellet obtained by step (4).
Comparative example：Unmodified ABS pellets, the production of Taiwan Qi Mei Co., Ltds, model PA-727.
Performance comparison
(1) the modified ABS pellet after melt pelletization in each embodiment and comparative example A's BS pellet injection mouldings are obtained into sample respectively, Shooting Technique condition is 80 DEG C of drying temperature；Drying time 4h；260 DEG C of melt temperature；Injection temperature：250 DEG C of nozzle；One section 260 DEG C；Two sections 250 DEG C；Three sections 240 DEG C；60 DEG C of mold temperature；Injection pressure：First class pressure 150MPa；Secondary pressure 75MPa；Three stage pressure 60MPa；Back pressure 3MPa；Screw speed 30rpm；Machine barrel shot 60%.
(2) each sample obtained in (1) is roughened under the same conditions, coarsening solution is by H2SO4(400g/L) and CrO3(350g/L) is constituted, coarsening time 5min.
After through corrosion, unmodified ABS surface hole quantity is few, depth as shallow, and roughening is not enough；And modified ABS only just forms a large amount of holes by 5min (coarsening time of such product is 10~15min in production practices) corrosion on surface, and void area is big, hole depth is deeper, extent of corrosion is substantially higher than unmodified ABS, and its easily roughening property has obtained very big improvement.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, on the premise of the technology of the present invention principle is not departed from; some improvements and modifications can also be made, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (4)
1. a kind of method of modifying of ABS plastic, it is characterised in that：Comprise the following steps：
(1) coupling agent is mixed to get mixed liquor with solvent；
(2) the mixed liquor mixing for obtaining modified powder and step (1)；Gained mix products again with dispersion
Agent mixes；
(3) mixture that ABS pellets are obtained with step (2) is mixed；ABS pellets and modified powder two
The weight ratio of person's consumption is 100: 2~100: 40；
The weight ratio of coupling agent described in step (1) and consumption both solvent is 1: 5~1: 20；Step
(2) the weight ratio of both coupling agent described in and modified powder consumption is 1: 100~40: 100；
The weight ratio of both the dispersant and modified powder consumption is 0.1: 1~0.1: 5；The idol
Connection agent be titanate coupling agent, KH-550 types silane coupler, KH-560 types silane coupler,
One or more in KH-570 type silane couplers, the solvent be benzene, toluene,
One kind in dimethylbenzene, N-N dimethylformamides, ethanol, propyl alcohol, butanol, acetone, butanone
Or more than one；Dispersant used by step (2) be dispersant TAS-2A, dispersant TAS-3A,
One or more in dispersant TAF；
The modified powder is anatase-type nanometer titanium dioxide, nano silicon, nanometer hydroxide
Magnesium, super fine alumina, ultra-fine barium sulfate, super-fine talc, zirconium dioxide, nanometer
One or more in calcium carbonate, nano zine oxide, zeolite, montmorillonite；It is described modified
The particle diameter of powder is 10nm~5000nm.
2. the method for modifying of ABS plastic as claimed in claim 1, it is characterised in that：Institute
The particle diameter for stating ABS pellets is 50um~5000um.
3. the method for modifying of ABS plastic as claimed in claim 2, it is characterised in that：Will
Step 3) products therefrom melt pelletization.
4. the method for modifying of ABS plastic as claimed in claim 3, it is characterised in that：Step
It is rapid 2) and step 3) in mixed process use stirring mixer, incorporation time all for 5~
20min, the rotating speed of stirring mixer is 300-3000rpm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511018628.5A CN106928639A (en) | 2015-12-30 | 2015-12-30 | A kind of method of modifying of ABS plastic |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511018628.5A CN106928639A (en) | 2015-12-30 | 2015-12-30 | A kind of method of modifying of ABS plastic |
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| CN106928639A true CN106928639A (en) | 2017-07-07 |
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| CN201511018628.5A Pending CN106928639A (en) | 2015-12-30 | 2015-12-30 | A kind of method of modifying of ABS plastic |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107474347A (en) * | 2017-08-23 | 2017-12-15 | 柳州市颖航汽配有限公司 | Rubber modification method |
| CN107603465A (en) * | 2017-09-20 | 2018-01-19 | 扬州大学 | The preparation method of the modified poly- high antiseptic property material of 2,3 dimethylaniline |
| CN109056020A (en) * | 2018-10-29 | 2018-12-21 | 上海芮远化学科技有限公司 | A kind of method for metallising and electro-plating method of plastic workpiece |
-
2015
- 2015-12-30 CN CN201511018628.5A patent/CN106928639A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107474347A (en) * | 2017-08-23 | 2017-12-15 | 柳州市颖航汽配有限公司 | Rubber modification method |
| CN107603465A (en) * | 2017-09-20 | 2018-01-19 | 扬州大学 | The preparation method of the modified poly- high antiseptic property material of 2,3 dimethylaniline |
| CN109056020A (en) * | 2018-10-29 | 2018-12-21 | 上海芮远化学科技有限公司 | A kind of method for metallising and electro-plating method of plastic workpiece |
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Application publication date: 20170707 |