CN101787162A - Aesthetical resin capable of eliminating injection-molding weld lines and preparation method thereof - Google Patents
Aesthetical resin capable of eliminating injection-molding weld lines and preparation method thereof Download PDFInfo
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- CN101787162A CN101787162A CN200910198683A CN200910198683A CN101787162A CN 101787162 A CN101787162 A CN 101787162A CN 200910198683 A CN200910198683 A CN 200910198683A CN 200910198683 A CN200910198683 A CN 200910198683A CN 101787162 A CN101787162 A CN 101787162A
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Abstract
The invention relates to an aesthetical resin capable of eliminating injection-molding weld lines and a preparation method thereof. The aesthetical resin comprises the following components in part by weight: 100 parts of thermoplastic resin, 0 to 5 parts of powdered aluminium, 0 to 5 parts of diamantes, 0.1 to 1 parts of antioxidant, 0.1 to 1 parts of dispersing agent and 0.1 to 5 parts of pigment; after the materials are prepared according to the components and the parts by weight, the materials are put into a medium-speed mixer, the rotating speed and the time are controlled, mixed material is obtained, and finally, a double-screw extruder is used to extrude and granulate the mixed material, so that the product is obtained. Compared with the prior art, the invention has the advantages of high surface glossiness, good mirror effect, bright color, good flowability, simple and continuous flow, high production efficiency and stable product quality, meets SGS and ROHS heavy metal safety standards and can be recycled.
Description
Technical field
The present invention relates to macromolecule material preparation area, especially relate to a kind of aesthstic resin of eliminating the injection moulding weld bond and preparation method thereof.
Background technology
Raising along with the aesthetic level of people, aesthstic resin with special-effect (has metal effect, pearl effect, flicker effect etc.) more and more receive an acclaim, be widely used in fields such as household electrical appliances (as washing machine, refrigerator, air-conditioning, water dispenser, computer, LCD TV, suction cleaner etc.), electronics, automobile, becoming the new propensity to consume.Widespread usage lacquer spraying technique and directly Shooting Technique at present.The lacquer spraying technique advantage is bright in luster, but complex process, cost height and environmental pollution are serious; Directly the injection moulding advantage is that technology is simple, cost is low, environmental protection, color be beautiful, but the product surface is easy to generate problems such as welded seam and streamline trace in the moulding process, has limited its application in some fields.
The evidence that the inventor is a large amount of, select particle diameter can significantly improve the goods weld bond greater than aluminium powder or the diamante of 90 μ m, further add the strong toner of a small amount of covering power on this basis, as titanium dioxide, the degree that can further reduce weld bond is to estimating the degree of not seeing substantially.
Summary of the invention
Purpose of the present invention be exactly provide in order to overcome the defective that above-mentioned prior art exists that a kind of glossiness height, color are beautiful, the aesthstic resin of the injection moulding the eliminated weld bond of good fluidity, dimensional stabilizing and preparation method thereof.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of aesthstic resin of eliminating the injection moulding weld bond is characterized in that, this resin comprises following component and weight part content:
Thermoplastic resin 100;
Aluminium powder 0-5;
Diamante 0-5;
Oxidation inhibitor 0.1-1;
Dispersion agent 0.1-1;
Pigment 0.1-5.
Described thermoplastic resin is one or more in polystyrene, styrene-acrylonitrile, acrylonitrile-butadiene-styrene (ABS), polymethylmethacrylate, MBS or the polycarbonate.
Described aluminium powder adopts the aluminium powder of big particle diameter, and particle diameter is 90-400 μ m, and purity is more than 99%, and radius-thickness ratio is (20: 1)-(50: 1), and the aluminium powder surface tissue is one or more in Palta type, polishing corn flakes type, silver dollar type or the ball-type.
Described diamante is one or more in sheet mica, aluminosilicate or the metal-salt, particle diameter 90-400 μ m.
The relative density 2.8 of described aluminosilicate, purity 93-98%, particle diameter 90-400 μ m.
Described oxidation inhibitor is one or more in hindered phenol and the phosphorous acid ester.
Described dispersion agent is one or more in ethylenebis stearic amide or the pentaerythritol tetrastearate.
Described pigment is one or more in inorganic toner, pigment dyestuff or the dyestuff, and thermotolerance is more than 280 ℃, and photostabilization 7-8 level meets SGS and the requirement of ROHS safety standards.
The higher toner of described pigment optimization opacifying power comprises titanium dioxide, carbon black or ultramarine, more preferably titanium dioxide.
A kind of preparation method who eliminates the aesthstic resin of injection moulding weld bond is characterized in that, this method may further comprise the steps:
(1) get the raw materials ready according to following component and weight part:
Thermoplastic resin 100;
Aluminium powder 0-5;
Diamante 0-5;
Oxidation inhibitor 0.1-1;
Dispersion agent 0.1-1;
Pigment 0.1-5;
(2) above-mentioned material is placed the middling speed mixing machine, the control rotating speed is 200-400rpm, mixes 20-40min, obtains mixture;
(3) mixture is introduced twin screw extruder, the control screw speed is 200-400rpm, and screw slenderness ratio is (30-50): 1, and it is 180-260 ℃ that screw rod is respectively distinguished temperature, carries out extruding pelletization, promptly obtains product.
Compared with prior art, the present invention has the following advantages:
(1) surface gloss height, mirror effect is good;
(2) color is beautiful, and pearly-lustre and flicker effect are outstanding, the alternative product that sprays paint;
(3) good fluidity improves design freedom and machine-shaping efficient;
(4) meet heavy metal SGS and ROHS safety standards;
(5) 100% recyclable utilizations again;
(6) You Yi chemical-resistant;
(7) good dimensional stability;
(8) adopt the preparation of twin screw extrusion equipment, have flow process simple, continuously, production efficiency is high and the advantage of constant product quality.
Embodiment
The present invention is described in detail below in conjunction with specific embodiment.
Embodiment 1-10
(1) component of embodiment 1-10 and weight part proportioning are as shown in table 1, get the raw materials ready according to the data in the table 1;
(2) above-mentioned material is placed the middling speed mixing machine, the control rotating speed is 300rpm, mixes 30min, obtains mixture;
(3) mixture is introduced twin screw extruder, the control screw speed is 300rpm, and screw slenderness ratio is 40: 1, and it is 180-260 ℃ that screw rod is respectively distinguished temperature, carries out extruding pelletization, promptly obtains product.
Table 1 embodiment scheme unit/part
| Embodiment | ??1 | ??2 | ??3 | ??4 | ??5 | ??6 | ??7 | ??8 | ??9 | ??10 |
| Thermoplastic resin a | ??100 | ??100 | ??100 | ??100 | ??100 | ??100 | ??100 | ??100 | ??100 | ??100 |
| Aluminium powder b | ??0.5 | ??- | ??- | ??- | ??- | ??- | ??- | ??- | ??- | ??- |
| Aluminium powder c | ??- | ??1.0 | ??- | ??- | ??- | ??- | ??- | ??- | ??- | ??- |
| Aluminium powder d | ??- | ??- | ??1.0 | ??1.0 | ??- | ??- | ??- | ??- | ??1.5 | ??- |
| Aluminium powder e | ??1.5 | |||||||||
| Diamante f | ??- | ??- | ??- | ??- | ??0.5 | ??- | ??- | ??- | ??- | ??- |
| Diamante g | ??- | ??- | ??- | ??- | ??- | ??1.0 | ??- | ??- | ??- | ??- |
| Diamante h | ??- | ??- | ??- | ??- | ??- | ??- | ??0.5 | ??0.5 | ??0.3 | ??0.5 |
| Oxidation inhibitor i | ??0.3 | ??0.3 | ??0.3 | ??0.3 | ??0.3 | ??0.3 | ??0.3 | ??0.3 | ??0.3 | ??0.3 |
| Dispersion agent j | ??1.0 | ??1.0 | ??1.0 | ??1.0 | ??1.0 | ??1.0 | ??0.5 | ??0.5 | ??0.5 | ??0.5 |
| Pigment k | ??- | ??- | ??- | ??1.0 | ??- | ??- | ??- | ??1.0 | ??2.0 | ??2.0 |
Wherein: a is one or more in ABS, PMMA/ABS alloy, the PC/ABS alloy; B is the aluminium powder of particle diameter 10 μ m; The aluminium powder of c particle diameter 70 μ m; D is the aluminium powder of particle diameter 100 μ m; E is the aluminium powder of dark particle diameter 200 μ m; F is the aluminosilicate of particle diameter 10 μ m, purity 93%; G is the aluminosilicate of particle diameter 70 μ m, purity 95%; H is the aluminosilicate of particle diameter 150 μ m, purity 95%; I is the IG-245 of CIBA company; J is the PETS of Italian FACI; K is the titanium dioxide of DUPONT.
Weld bond is estimated: after the product moulding, estimate outward appearance and have or not weld bond, the result is as shown in table 2.
Table 2 product weld bond is estimated
| Embodiment | ??1 | ??2 | ??3 | ??4 | ??5 | ??6 | ??7 | ??8 | ??9 | ??10 |
| Weld bond | Obviously | Obviously | Slightly | Do not have | Obviously | Obviously | Slightly | Do not have | Do not have | Do not have |
As can be seen from Table 2, embodiment 1,2,5,6 weld bonds clearly, this is because its used aluminium powder particle diameter is little, be flaky texture, radius-thickness ratio is big, the place that two strands or multiply melt meet during injection moulding, aluminium powder is orientated, cause this zone incident light generating unit to divide scattering, make product surface gloomy, what it was seen is exactly tangible welded seam and streamline trace.
Embodiment 3,7 weld bonds are very slight, are to have adopted big particle diameter silver dollar shape aluminium powder, and radius-thickness ratio is much smaller, so aluminium powder can not be orientated in orientation area, the internal cause of incident light generation scattering is eliminated, thereby greatly reduces macroscopic irregularitys such as welded seam and streamline trace.
Embodiment 4,8 weldless lines are to have adopted inorganic toner, and slight welded seam and streamline trace have thoroughly been covered in.
Embodiment 9,10 has embodied aesthstic resin effect more, is also to have introduced aluminosilicate (diamante) on big particle diameter aluminium powder basis, makes material appearance obtain the special illusion-colour effect of flaring pearlescent, has thoroughly solved macroscopic irregularitys such as welded seam and streamline trace.
Technical scheme of the present invention can solve plastics product outward appearance weld bond defective completely, makes the goods product have more aesthetic value, has expanded the Application Areas of material.
Embodiment 11
A kind of aesthstic resin of eliminating the injection moulding weld bond and the preparation method, may further comprise the steps:
(1) gets the raw materials ready according to following component and weight part: thermoplastic resin 100kg, aluminium powder 0.1kg, diamante 0.1kg, oxidation inhibitor 0.1kg, dispersion agent 0.1kg, pigment 0.1kg; Wherein, thermoplastic resin is the silver dollar type aluminium powder that acrylonitrile-butadiene-styrene (ABS), aluminium powder adopt big particle diameter, particle diameter is 90 μ m, purity is more than 99%, radius-thickness ratio is 20: 1, diamante be aluminosilicate particle diameter 90 μ m, oxidation inhibitor be hindered phenol and phosphorous acid ester compound, adopt commercially available antioxidant 1010 and oxidation inhibitor 168 with 1: 2 proportioning compositely form, dispersion agent is the ethylenebis stearic amide, pigment is inorganic toner ultramarine, thermotolerance is more than 280 ℃, photostabilization 7-8 level meets SGS and the requirement of ROHS safety standards;
(2) above-mentioned material is placed the middling speed mixing machine, the control rotating speed is 200rpm, mixes 20min, obtains mixture;
(3) mixture is introduced twin screw extruder, the control screw speed is 200rpm, and screw slenderness ratio is 30-: 1, and it is 180-260 ℃ that screw rod is respectively distinguished temperature, carries out extruding pelletization, promptly obtains product.
Embodiment 12
A kind of aesthstic resin of eliminating the injection moulding weld bond and the preparation method, may further comprise the steps:
(1) gets the raw materials ready according to following component and weight part: thermoplastic resin 100kg, aluminium powder 5kg, diamante 5kg, oxidation inhibitor 1kg, dispersion agent 1kg, pigment 5kg; Wherein, thermoplastic resin is a MBS, aluminium powder adopts the silver dollar type aluminium powder of big particle diameter, particle diameter is 400 μ m, purity is more than 99%, radius-thickness ratio 50: 1, surface tissue is polishing corn flakes type, diamante is an aluminosilicate, particle diameter 400 μ m, the relative density 2.8 of aluminosilicate, purity 98%, particle diameter 400 μ m, oxidation inhibitor is that commercially available antioxidant 1076 and oxidation inhibitor 168 form so that 1: 2 proportioning is composite, dispersion agent is a pentaerythritol tetrastearate, pigment is pigment dyestuff, thermotolerance is more than 280 ℃, and photostabilization 7-8 level meets SGS and the requirement of ROHS safety standards;
(2) above-mentioned material is placed the middling speed mixing machine, the control rotating speed is 400rpm, mixes 40min, obtains mixture;
(3) mixture is introduced twin screw extruder, the control screw speed is 400rpm, and screw slenderness ratio is 50: 1, and it is 180-260 ℃ that screw rod is respectively distinguished temperature, carries out extruding pelletization, promptly obtains product.
Claims (9)
1. the aesthstic resin that can eliminate the injection moulding weld bond is characterized in that, this resin comprises following component and weight part content:
Thermoplastic resin 100;
Aluminium powder 0-5;
Diamante 0-5;
Oxidation inhibitor 0.1-1;
Dispersion agent 0.1-1;
Pigment 0.1-5.
2. a kind of aesthstic resin of eliminating the injection moulding weld bond according to claim 1, it is characterized in that described thermoplastic resin is one or more the blend in polystyrene, styrene-acrylonitrile, acrylonitrile-butadiene-styrene (ABS), polymethylmethacrylate, MBS or the polycarbonate.
3. a kind of aesthstic resin of eliminating the injection moulding weld bond according to claim 1, it is characterized in that, described aluminium powder adopts aluminium powder, particle diameter is 90-400 μ m, purity is more than 99%, radius-thickness ratio is (20: 1)-(50: 1), and the aluminium powder surface tissue is one or more in Palta type, polishing corn flakes type, silver dollar type or the ball-type.
4. a kind of aesthstic resin of eliminating the injection moulding weld bond according to claim 1 is characterized in that described diamante is one or more in sheet mica, aluminosilicate, the metal-salt, particle diameter 90-400 μ m.
5. a kind of aesthstic resin of eliminating the injection moulding weld bond according to claim 1 is characterized in that described oxidation inhibitor is one or more in hindered phenol and the phosphorous acid ester.
6. a kind of aesthstic resin of eliminating the injection moulding weld bond according to claim 1 is characterized in that described dispersion agent is one or more in ethylenebis stearic amide or the pentaerythritol tetrastearate.
7. a kind of aesthstic resin of eliminating the injection moulding weld bond according to claim 1, it is characterized in that described pigment is one or more in inorganic toner, pigment dyestuff or the dyestuff, thermotolerance is more than 280 ℃, photostabilization 7-8 level meets SGS and the requirement of ROHS safety standards.
8. a kind of aesthstic resin of eliminating the injection moulding weld bond according to claim 7 is characterized in that the higher toner of described pigment optimization opacifying power comprises titanium dioxide, carbon black or ultramarine, more preferably titanium dioxide.
9. the preparation method that can eliminate the aesthstic resin of injection moulding weld bond is characterized in that, this method may further comprise the steps:
(1) get the raw materials ready according to following component and weight part:
Thermoplastic resin 100;
Aluminium powder 0-5;
Diamante 0-5;
Oxidation inhibitor 0.1-1;
Dispersion agent 0.1-1;
Pigment 0.1-5;
(2) above-mentioned material is placed the middling speed mixing machine, the control rotating speed is 200-400rpm, mixes 20-40min, obtains mixture;
(3) mixture is introduced twin screw extruder, the control screw speed is 200-400rpm, and screw slenderness ratio is (30-50): 1, and it is 180-260 ℃ that screw rod is respectively distinguished temperature, carries out extruding pelletization, promptly obtains product.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910198683A CN101787162A (en) | 2009-11-12 | 2009-11-12 | Aesthetical resin capable of eliminating injection-molding weld lines and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910198683A CN101787162A (en) | 2009-11-12 | 2009-11-12 | Aesthetical resin capable of eliminating injection-molding weld lines and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101787162A true CN101787162A (en) | 2010-07-28 |
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| CN200910198683A Pending CN101787162A (en) | 2009-11-12 | 2009-11-12 | Aesthetical resin capable of eliminating injection-molding weld lines and preparation method thereof |
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| CN102372904A (en) * | 2010-08-13 | 2012-03-14 | 上海锦湖日丽塑料有限公司 | Preparation method for aesthetic resin for improving affinity of aluminum powder pigment |
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| CN102492254A (en) * | 2011-12-04 | 2012-06-13 | 上海金发科技发展有限公司 | Spray-free metal-effect ABS (Acrylonitrile Butadiene Styrene) modified material and preparation method thereof |
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| CN102464847A (en) * | 2010-11-15 | 2012-05-23 | 上海锦湖日丽塑料有限公司 | Resin composition and preparation method thereof |
| CN102492254A (en) * | 2011-12-04 | 2012-06-13 | 上海金发科技发展有限公司 | Spray-free metal-effect ABS (Acrylonitrile Butadiene Styrene) modified material and preparation method thereof |
| CN102516789A (en) * | 2011-12-09 | 2012-06-27 | 上海锦湖日丽塑料有限公司 | Resin composition for temperature control indication |
| CN102516789B (en) * | 2011-12-09 | 2015-03-04 | 上海锦湖日丽塑料有限公司 | Resin composition for temperature control indication |
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| CN104419106A (en) * | 2013-08-24 | 2015-03-18 | 黑龙江鑫达企业集团有限公司 | High-gloss paint spray-free scratch resistant alloy material and preparation method thereof |
| CN103694562A (en) * | 2013-12-10 | 2014-04-02 | 广州市聚赛龙工程塑料有限公司 | Spraying-free scrape-resistant polypropylene composite material for automobile interior trim parts and preparation method thereof |
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| CN109666182A (en) * | 2018-11-28 | 2019-04-23 | 苏州联胜化学有限公司 | A kind of brightener and preparation method thereof |
| CN110216547A (en) * | 2019-06-17 | 2019-09-10 | 上海与非日用品有限公司 | A kind of polyvinyl chloride injection molding polishing integrated equipment |
| CN110216547B (en) * | 2019-06-17 | 2021-03-12 | 广东启智精密科技股份有限公司 | Polyvinyl chloride injection molding and polishing integrated equipment |
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Application publication date: 20100728 |