CN103112096B - A kind of preparation method exempting from spraying aesthetic resin improving outward appearance - Google Patents
A kind of preparation method exempting from spraying aesthetic resin improving outward appearance Download PDFInfo
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- CN103112096B CN103112096B CN201210545213.3A CN201210545213A CN103112096B CN 103112096 B CN103112096 B CN 103112096B CN 201210545213 A CN201210545213 A CN 201210545213A CN 103112096 B CN103112096 B CN 103112096B
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Abstract
Improve the preparation method exempting from spraying aesthetic resin of outward appearance, its step comprises: matrix resin, antioxidant, lubricant, aluminium powder pigment are 100: 0.1-1 by (1) by weight; 0.5-2: 0.1-2 prepares burden, (2) send into after above-mentioned raw materials being uniformly mixed in high-speed mixer in double screw extruder, the conveying of screw rod, shearing and mixing under, material melting, compound, then die extrusion through being equipped with ultrasonic unit, tie rod, cooling, pelletizing obtain a kind of improve outward appearance exempt from spraying aesthetic resin.Compared with prior art, the present invention adopts ultrasonic wave extrusion molding, improves the compatibility of polyesters matrix resin and aluminium powder, improves the processability of matrix resin, thus significantly reduces weld bond and current mark that aesthetic resin produces in injection molding process.The present invention is that the aesthetic resin of environmental protection replaces traditional scheme of spraying paint to provide technical support.
Description
Technical field
The invention belongs to resin preparation field, relate to a kind of preparation method exempting from spraying aesthetic resin improving outward appearance.
Background technology
Exempt from spraying aesthetic resin as a kind of emerging technology, obtained applying more and more widely, from commodity packaging as cosmetics shell and Shampoo Bottle Cover, to various household electrical appliances as air-conditioning, washer and refrigerator, the figure of aesthetic resin can be seen.Exempt from the outward appearance solution of spraying aesthetic resin as a kind of disposal molding, both brought beautiful outward appearance to product, and again reduced the pollution of environment, and reduced the consumption of the energy.Feature remarkable Just because of this, aesthetic resin, when designing new product, has added in product as a kind of new fashionable element and has gone by many outstanding product designers.
But to compare with plating as sprayed paint with traditional appearance solution, exempting from spraying aesthetic resin and having its shortcoming being difficult to overcome, namely on baroque product, easily produce weld bond and current mark, meanwhile, the fine and smooth degree of effect is higher, and above-mentioned defect is also more serious.Just because of above-mentioned reason, exempt from spraying aesthetic resin and be difficult to be used on high-grade household electrical appliances, consumer electronic and auto parts machinery.
For current mark and the solution of weld bond, researchers have done large quantifier elimination.In mould, by the design of gate shape, single cast gate enters glue, and order enters glue, and the structural design of optimization and the E-mold technology of rapid heat cycle, can obviously improve weld bond and current mark; In Shooting Technique, by regulating Shooting Technique, injection pressure, and dwell pressure and time etc., weld bond and current mark can be improved in various degree; In material, improving current mark and weld bond mainly through two aspects, is the mobility improving material on the one hand, is the compatibility improving special-effect toner and base material on the other hand.It is little that the mobility of material improves technical difficulty comparatively speaking, but the compatibility of special-effect toner and base material is but difficult to improve.
The application of the art of this patent effectively can improve the compatibility of aluminium powder toner and base material.This patent utilizes ultrasonic technology to substantially increase the activity of polyesters matrix resin functional group and aluminium powder surface functional group, makes to there occurs sufficient reaction between both functional groups, improves both compatibilities, thus improves weld bond and current mark.The present invention is that the aesthetic resin of environmental protection replaces traditional scheme of spraying paint to provide technical support.
Summary of the invention
Object of the present invention is exactly provide a kind of compatibility that greatly can improve base material and aluminium powder toner, the preparation method exempting from spraying aesthetic resin of improvement outward appearance of the processability of raising base material to overcome defect that above-mentioned prior art exists.
Object of the present invention can be achieved through the following technical solutions:
Improve the preparation method exempting from spraying aesthetic resin of outward appearance, the method comprises the following steps:
(1) get the raw materials ready according to following component and weight portion content:
Matrix resin 100;
Antioxidant 0.1-1;
Lubricant 0.5-2;
Aluminium powder pigment 0.1-2;
(2) above-mentioned raw materials is placed in high-speed mixer by formula stirs, send in double screw extruder through metering device after mixing, the temperature controlling double screw extruder is 230 ~ 270 DEG C, the conveying of screw rod, shearing and mixing under, by material melting, compound, then through being equipped with the die extrusion of ultrasonic unit, tie rod, cooling, pelletizing step, the outward appearance that namely improves exempt from spraying aesthetic resin.
Matrix resin described in step (1) is the polyester with reactive functional groups, comprise Merlon, poly-terephthalyl alcohol glycol ester, polybutylene terephthalate, PLA, PETG-1,4-CHDM ester or PEN.
Antioxidant described in step (1) is selected from CIBA and refines the Irganox 1010 of company, one or more of Irganox1076, Irganox B900 or Irganox 168.
Lubricant described in step (1) is selected from one or more in silicone oil, White Mineral Oil, fatty acid amide, barium stearate, dolomol, paraffin, Tissuemat E, ethylene bis stearic acid amide, ethylene-vinyl acetate copolymer or ethylene-acrylic acid copolymer.
Aluminium powder pigment described in step (1) is without surface treatment, and shape is sheet, silver dollar shape, bar-shaped or spherical, and particle diameter is 10 μm ~ 200 μm.
The frequency range of the ultrasonic unit described in step (2) is between 0 ~ 100kHz, and output power range 0 ~ 600W, the ultrasonic wave of transmitting is impulse type ultrasonic wave, and direction is parallel to resin flows direction.
The output power range preferably 300 ~ 400W of the ultrasonic unit described in step (2).
Compared with prior art, this technology uses pulse type supersonic method, and by its power and FREQUENCY CONTROL within the specific limits, greatly can promote hydroxyl reaction exposed in the end group in the reactive base material of polyesters and aluminium powder toner, thus the compatibility that improve between them, in addition, supercritical ultrasonics technology also improves the processability of base material, appeals two factors and all decreases the weld bond and current mark that prepared aesthetic resin produces in injection moulding process.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail.
Embodiment 1
Improve the preparation method exempting from spraying aesthetic resin of outward appearance, the method comprises the following steps:
(1) get the raw materials ready according to following component and weight portion content:
Matrix resin 100;
Antioxidant 0.2;
Lubricant 1;
Aluminium powder pigment 0.5;
Wherein, matrix resin is the PET530 of E.I.Du Pont Company, antioxidant is Irganox B900, lubricant is ethylene-acrylic acid copolymer, aluminium powder shape is silver dollar shape, particle diameter is 20 μm ~ 40 μm;
(2) above-mentioned (1) raw material is placed in high-speed mixer by formula stirs, send in double screw extruder through metering device after mixing, the temperature controlling double screw extruder is 230 ~ 270 DEG C, the conveying of screw rod, shearing and mixing under, by material melting, compound, then through die extrusion, tie rod, cooling, pelletizing step, the outward appearance that namely improves exempt from spraying aesthetic resin.
Embodiment 2
Improve the preparation method exempting from spraying aesthetic resin of outward appearance, the method comprises the following steps:
(1) get the raw materials ready according to following component and weight portion content:
Matrix resin 100;
Antioxidant 0.2;
Lubricant 1;
Aluminium powder pigment 0.5;
(2) above-mentioned (1) raw material is placed in high-speed mixer by formula stirs, send in double screw extruder through metering device after mixing, the temperature controlling double screw extruder is 230 ~ 270 DEG C, the conveying of screw rod, shearing and mixing under, by material melting, compound, then through being equipped with the die extrusion of ultrasonic unit, tie rod, cooling, pelletizing step, the outward appearance that namely improves exempt from spraying aesthetic resin.
Wherein, matrix resin is the PET530 of E.I.Du Pont Company;
Antioxidant is Irganox B900;
Lubricant is ethylene-acrylic acid copolymer;
Aluminium powder shape is silver dollar shape, and particle diameter is 20 μm ~ 40 μm;
Ultrasonic frequency is 20kHz, and power is 200W, and type is impulse type ultrasonic wave.
Embodiment 3
Improve the preparation method exempting from spraying aesthetic resin of outward appearance, the method comprises the following steps:
(1) get the raw materials ready according to following component and weight portion content:
Matrix resin 100;
Antioxidant 0.2;
Lubricant 1;
Aluminium powder pigment 0.5;
(2) above-mentioned (1) raw material is placed in high-speed mixer by formula stirs, send in double screw extruder through metering device after mixing, the temperature controlling double screw extruder is 230 ~ 270 DEG C, the conveying of screw rod, shearing and mixing under, by material melting, compound, then through being equipped with the die extrusion of ultrasonic unit, tie rod, cooling, pelletizing step, the outward appearance that namely improves exempt from spraying aesthetic resin.
Wherein, matrix resin is the PET530 of E.I.Du Pont Company;
Antioxidant is Irganox B900;
Lubricant is ethylene-acrylic acid copolymer;
Aluminium powder shape is silver dollar shape, and particle diameter is 20 μm ~ 40 μm;
Ultrasonic frequency is 20kHz, and power is 350W, and type is impulse type ultrasonic wave.
Embodiment 4
Improve the preparation method exempting from spraying aesthetic resin of outward appearance, the method comprises the following steps:
(1) get the raw materials ready according to following component and weight portion content:
Matrix resin 100;
Antioxidant 0.2;
Lubricant 1;
Aluminium powder pigment 0.5;
(2) above-mentioned (1) raw material is placed in high-speed mixer by formula stirs, send in double screw extruder through metering device after mixing, the temperature controlling double screw extruder is 230 ~ 270 DEG C, the conveying of screw rod, shearing and mixing under, by material melting, compound, then through being equipped with the die extrusion of ultrasonic unit, tie rod, cooling, pelletizing step, the outward appearance that namely improves exempt from spraying aesthetic resin.
Wherein, matrix resin is the PET530 of E.I.Du Pont Company;
Antioxidant is Irganox B900
Lubricant is ethylene-acrylic acid copolymer;
Aluminium powder shape is silver dollar shape, and particle diameter is 20 μm ~ 40 μm;
Ultrasonic frequency is 20kHz, and power is 600W, and type is impulse type ultrasonic wave.
Embodiment 5
Improve the preparation method exempting from spraying aesthetic resin of outward appearance, the method comprises the following steps:
(1) get the raw materials ready according to following component and weight portion content:
Matrix resin 100;
Antioxidant 0.2;
Lubricant 1;
Aluminium powder pigment 0.5;
(2) above-mentioned (1) raw material is placed in high-speed mixer by formula stirs, send in double screw extruder through metering device after mixing, the temperature controlling double screw extruder is 230 ~ 270 DEG C, the conveying of screw rod, shearing and mixing under, by material melting, compound, then through being equipped with the die extrusion of ultrasonic unit, tie rod, cooling, pelletizing step, the outward appearance that namely improves exempt from spraying aesthetic resin.
Wherein, matrix resin is the PET530 of E.I.Du Pont Company;
Antioxidant is Irganox B900;
Lubricant is ethylene-acrylic acid copolymer;
Aluminium powder shape is silver dollar shape, and particle diameter is 20 μm ~ 40 μm;
Ultrasonic frequency is 60kHz, and power is 600W, and type is impulse type ultrasonic wave.
Comparative example 1
Improve the preparation method exempting from spraying aesthetic resin of outward appearance, the method comprises the following steps:
(1) get the raw materials ready according to following component and weight portion content:
Matrix resin 100;
Antioxidant 0.2;
Lubricant 1;
Aluminium powder pigment 0.5;
(2) above-mentioned (1) raw material is placed in high-speed mixer by formula stirs, send in double screw extruder through metering device after mixing, the temperature controlling double screw extruder is 230 ~ 270 DEG C, the conveying of screw rod, shearing and mixing under, by material melting, compound, then through being equipped with the die extrusion of ultrasonic unit, tie rod, cooling, pelletizing step, the outward appearance that namely improves exempt from spraying aesthetic resin.
Wherein, matrix resin is the ABS of Qi Mei company, PA757K;
Antioxidant is Irganox B900;
Lubricant is ethylene-acrylic acid copolymer;
Aluminium powder shape is silver dollar shape, and particle diameter is 20 μm ~ 40 μm;
Ultrasonic frequency is 60kHz, and power is 600W, and type is impulse type ultrasonic wave.
Comparative example 2
Improve the preparation method exempting from spraying aesthetic resin of outward appearance, the method comprises the following steps:
(1) get the raw materials ready according to following component and weight portion content:
Matrix resin 100;
Antioxidant 0.2;
Lubricant 1;
Aluminium powder pigment 0.5;
(2) above-mentioned (1) raw material is placed in high-speed mixer by formula stirs, send in double screw extruder through metering device after mixing, the temperature controlling double screw extruder is 230 ~ 270 DEG C, the conveying of screw rod, shearing and mixing under, by material melting, compound, then through being equipped with the die extrusion of ultrasonic unit, tie rod, cooling, pelletizing step, the outward appearance that namely improves exempt from spraying aesthetic resin.
Wherein, matrix resin is the PET530 of E.I.Du Pont Company;
Antioxidant is Irganox B900;
Lubricant is ethylene-acrylic acid copolymer;
Aluminium powder shape is silver dollar shape, and particle diameter is 20 μm ~ 40 μm;
Ultrasonic frequency is 60kHz, and power is 600W, and type is plain edition ultrasonic wave.
Aesthetic resin prepared by embodiment 1 ~ 5 is injection molded into colour table, compares its weld bond and current mark situation, measure its rheological property, compare its processability, be summarized as follows table 1.
The each embodiment visual condition of table 1 and processability compare
| Frequency | Power | Ultrasound in nature | Matrix resin | Weld bond and current mark | Processability | |
| Embodiment 1 | 0kHz | 0W | Impulse type | PET | ××××× | ○ |
| Embodiment 2 | 20kHz | 200W | Impulse type | PET | ××× | ○○ |
| Embodiment 3 | 20kHz | 350W | Impulse type | PET | ×× | ○○○ |
| Embodiment 4 | 20kHz | 600W | Impulse type | PET | ××× | ○○○○ |
| Embodiment 5 | 60kHz | 600W | Impulse type | PET | ××× | ○○○ |
| Comparative example 1 | 60kHz | 600W | Impulse type | ABS | ××××× | ○○○ |
| Comparative example 2 | 60kHz | 600W | Plain edition | PET | ×××× | ○○○ |
Note: × more multilist show weld bond and current mark more serious
Zero more multilist show that processability is better
Can be drawn to draw a conclusion by table 1:
A, to apply after ultrasonic wave, weld bond and current mark be improved significantly, processability improves greatly, proves that ultrasonic wave effectively improves the compatibility of aluminium powder toner and matrix resin.
B, ultrasonic power are larger, the processability of resin is better, but during 350W, weld bond and current mark situation are better than 200 and 400W, there is a certain power interval in proof, aluminium powder toner and matrix resin have best compatibility, and power is too large may have destruction to aluminium powder, has increased the weight of current mark and weld bond on the contrary.
C, ultrasonic frequency are less, and the processability of resin is improved more obvious, but frequency affects little on weld bond and current mark.
When d, matrix resin change ABS into by PET, supercritical ultrasonics technology is to current mark and weld bond without improvement, and reason is that ABS does not have functional group and aluminium powder to react.
The improvement to current mark and weld bond of e, impulse type ultrasonic wave is better than plain edition ultrasonic wave, and possible impulse type ultrasonic wave more can improve the reactivity of polyesters base material and aluminium powder.
Embodiment 6
Improve the preparation method exempting from spraying aesthetic resin of outward appearance, the method comprises the following steps:
(1) get the raw materials ready according to following component and weight portion content:
Matrix resin 100;
Antioxidant 0.1;
Lubricant 0.5;
Aluminium powder pigment 0.1;
(2) above-mentioned (1) raw material is placed in high-speed mixer by formula stirs, send in double screw extruder through metering device after mixing, the temperature controlling double screw extruder is 230 ~ 270 DEG C, the conveying of screw rod, shearing and mixing under, by material melting, compound, then through being equipped with the die extrusion of ultrasonic unit, tie rod, cooling, pelletizing step, the outward appearance that namely improves exempt from spraying aesthetic resin.
Wherein, matrix resin is the PC3410 of Di Ren company; Antioxidant is that Irganox 1010 and Irganox 168 are composite with 1: 1; Lubricant is silicone oil; Aluminium powder shape is spherical, and particle diameter is 10 μm ~ 20 μm; Ultrasonic frequency is 100kHz, and power is 400W.
Embodiment 7
Improve the preparation method exempting from spraying aesthetic resin of outward appearance, the method comprises the following steps:
(1) get the raw materials ready according to following component and weight portion content:
Matrix resin 100;
Antioxidant 1;
Lubricant 2;
Aluminium powder pigment 2;
(2) above-mentioned (1) raw material is placed in high-speed mixer by formula stirs, send in double screw extruder through metering device after mixing, the temperature controlling double screw extruder is 230 ~ 270 DEG C, the conveying of screw rod, shearing and mixing under, by material melting, compound, then through being equipped with the die extrusion of ultrasonic unit, tie rod, cooling, pelletizing step, the outward appearance that namely improves exempt from spraying aesthetic resin.
Wherein, matrix resin is the PETG of SK company, PN100; Antioxidant is Irganox 1076; Lubricant is that dolomol and paraffin 1: 1 are composite; Aluminium powder shape is bar-shaped, and particle diameter is 80 μm ~ 200 μm; Ultrasonic frequency is 80kHz, and power is 500W.
Claims (5)
1. improve the preparation method exempting from spraying aesthetic resin of outward appearance, it is characterized in that, the method comprises the following steps:
(1) get the raw materials ready according to following component and weight portion content:
(2) above-mentioned raw materials is placed in high-speed mixer by formula stirs, send in double screw extruder through metering device after mixing, the temperature controlling double screw extruder is 230 ~ 270 DEG C, the conveying of screw rod, shearing and mixing under, by material melting, compound, then through being equipped with the die extrusion of ultrasonic unit, tie rod, cooling, pelletizing step, the outward appearance that namely improves exempt from spraying aesthetic resin;
The frequency range of the ultrasonic unit described in step (2) is between 20 ~ 100kHz, and output power range 300 ~ 400W, the ultrasonic wave of transmitting is impulse type ultrasonic wave, and direction is parallel to resin flows direction.
2. a kind of preparation method exempting from spraying aesthetic resin improving outward appearance according to claim 1, it is characterized in that, matrix resin described in step (1) is the polyester with reactive functional groups, comprise Merlon, poly-terephthalyl alcohol glycol ester, polybutylene terephthalate, PLA, PETG-1,4-CHDM ester or PEN.
3. a kind of preparation method exempting from spraying aesthetic resin improving outward appearance according to claim 1, it is characterized in that, the antioxidant described in step (1) is selected from CIBA and refines Irganox 1010, the Irganox 1076 of company, one or more of Irganox B900 or Irganox 168.
4. a kind of preparation method exempting from spraying aesthetic resin improving outward appearance according to claim 1, it is characterized in that, the lubricant described in step (1) is selected from one or more in silicone oil, White Mineral Oil, fatty acid amide, barium stearate, dolomol, paraffin, Tissuemat E, ethylene bis stearic acid amide, ethylene-vinyl acetate copolymer or ethylene-acrylic acid copolymer.
5. a kind of preparation method exempting from spraying aesthetic resin improving outward appearance according to claim 1, it is characterized in that, aluminium powder pigment described in step (1) is without surface treatment, and shape is sheet, silver dollar shape, bar-shaped or spherical, and particle diameter is 10 μm ~ 200 μm.
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Families Citing this family (6)
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| CN105038157A (en) * | 2015-01-09 | 2015-11-11 | 广州市傲趣电子科技有限公司 | Gold-simulative composite consumable used in 3D printing and having gold-plated effect and preparation method thereof |
| CN104592726A (en) * | 2015-01-09 | 2015-05-06 | 广州市傲趣电子科技有限公司 | Imitation-silver composite consumable with silver plating effect and for 3Dprinting and preparation method thereof |
| CN105014925A (en) * | 2015-07-27 | 2015-11-04 | 广东工业大学 | Device and method for manufacturing metal flashing plastic through ultrasonic treatment |
| CN107629296B (en) * | 2017-10-18 | 2020-06-26 | 安徽天易金属新材料有限公司 | Low-flow-mark aluminum pigment for plastics and preparation method thereof |
| CN113045883A (en) * | 2019-12-27 | 2021-06-29 | 惠州视维新技术有限公司 | Imitation metal material, television middle frame and preparation method thereof |
| CN112936714A (en) * | 2020-12-27 | 2021-06-11 | 太仓市洁益环卫设备有限公司 | High-strength large-scale garbage can injection molding blending device and production process thereof |
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