CN107189334B - Non-flow-pattern spraying-free plastic for injection molding and preparation method thereof - Google Patents
Non-flow-pattern spraying-free plastic for injection molding and preparation method thereof Download PDFInfo
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- CN107189334B CN107189334B CN201710559611.3A CN201710559611A CN107189334B CN 107189334 B CN107189334 B CN 107189334B CN 201710559611 A CN201710559611 A CN 201710559611A CN 107189334 B CN107189334 B CN 107189334B
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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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
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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
- C08K3/02—Elements
- C08K3/08—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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0806—Silver
-
- 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
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0831—Gold
Abstract
The invention discloses a formula and a preparation method of injection molding non-flow pattern spraying-free plastic, which comprises the following raw materials in parts by weight: 95-98 parts of base material, dispersant: 0.1 to 0.5 portion of crystal granular pearl powder, 0.5 to 1 portion of wear-resistant granular silver dots, 0.5 to 1 portion of wear-resistant granular gold dots and 0.1 to 0.5 portion of pigment. Compared with the conventional spraying-free plastic, the invention does not need spraying and one-time injection molding after the material is used in the later period, achieves the effect of no flow pattern and gorgeous flicker, and has the advantages of high product qualification rate, lower cost, environmental protection and no emission of toxic and harmful gases caused by a spraying process. The method has the advantages of no pollution, energy conservation and high efficiency, helps customers improve the market competitiveness of products, selects wear-resistant crystal granular pearl powder or wear-resistant granular silver point gold dots, uses a double-screw side feeding system, reduces grinding and shearing of particles during melt blending, prevents the particles from forming mud, ensures the texture of metal flicker, and cannot accumulate mud-shaped flow lines at a pouring gate.
Description
Technical Field
The invention belongs to the field of injection molding, and particularly relates to a non-flow-pattern spraying-free plastic for injection molding. Meanwhile, the invention also relates to a preparation method of the injection molding non-flow-pattern spraying-free plastic.
Background
The traditional plastic piece can obtain appearance effects of various colors after being sprayed, but the spraying process is tedious, serious in pollution and deeply suffered from scaling by manufacturers. Spraying-free plastics are produced under the background that metallic pigments, pearl powder and other pigments with special color effects are added into resin to obtain products with similar effects to spray painting.
The existing spraying-free plastic has the common flow lines and wiring on the surface of a plastic product when a manufacturer performs injection molding, so that the appearance is influenced.
Disclosure of Invention
The invention aims to provide a non-flow-pattern spraying-free plastic for injection molding and a preparation method thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a mixture for injection molding of non-flow pattern spraying-free plastics comprises the following raw materials in parts by weight: 95-98 parts of base material, dispersant: 0.1 to 0.5 portion of crystal granular pearl powder, 0.5 to 1 portion of wear-resistant granular silver dots, 0.5 to 1 portion of wear-resistant granular gold dots and 0.1 to 0.5 portion of pigment.
Preferably, the total mass parts of the crystal granular pearl powder, the wear-resistant granular silver dots and the wear-resistant granular gold dots are 1-3 parts.
Preferably, the base material comprises ABS, PP, PMMA, PC, alloy material, flame retardant, modified plastic and the like.
A preparation method of injection molding non-flow-pattern spraying-free plastic comprises the following steps:
s1, preparing raw materials: selecting 95-98 parts of base material and dispersant by mass: 0.1-0.5 part of crystal granular pearl powder, 0.5-1 part of wear-resistant granular silver dots, 0.5-1 part of wear-resistant granular gold dots and 0.1-0.5 part of pigment;
s2, stirring and mixing: fully stirring the raw materials prepared in the step S1 in a stirring device for not less than 30 min;
s3, shearing: the mixed material is firstly prepared into a color master batch substrate with a special color effect through a high-shear double screw rod, so that color materials are fully dispersed, and a double-screw rod side feeding system is used for feeding, so that the grinding and shearing of particles during melt blending are reduced, and the particles are prevented from being formed into mud;
s4, melt blending: the materials are mixed by a melt blending method, molecules of various materials are scattered and convectively excited in a molten state, and the material mixing effect is better due to the shearing action of a double screw;
s5, drawing strips and granulating: and (4) bracing by adopting a water bracing mode, and granulating after drying the stripped plastic.
Preferably, the water temperature of the stripped plastic after the drawing strip in the S5 is not more than 50 ℃ after passing through water.
Preferably, the drying in the step S5 is carried out in a normal-temperature air drying mode, the air speed of air drying is 6-8m/S, and the air drying time is not less than 30S.
Compared with the prior art, the invention has the beneficial effects that: compared with the conventional spraying-free plastic, the invention does not need spraying and one-time injection molding after the material is used in the later period, achieves the effect of no flow pattern and gorgeous flicker, and has the advantages of high product qualification rate, lower cost, environmental protection and no emission of toxic and harmful gases caused by a spraying process. The method has the advantages of no pollution, energy conservation and high efficiency, and helps customers to improve the market competitiveness of products.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
The injection molding non-flow pattern spraying-free plastic comprises the following raw materials in parts by weight: 95-98 parts of base material, dispersant: 0.1 to 0.5 portion of crystal granular pearl powder, 0.5 to 1 portion of wear-resistant granular silver dots, 0.5 to 1 portion of wear-resistant granular gold dots and 0.1 to 0.5 portion of pigment.
The total mass parts of the crystal granular pearl powder, the wear-resistant granular silver dots and the wear-resistant granular gold dots are 1-3 parts.
The base material comprises ABS, PP, PMMA, PC, alloy material, flame retardant, modified plastic and the like.
A preparation method of injection molding non-flow-pattern spraying-free plastic comprises the following steps:
s1, preparing raw materials: selecting 95-98 parts of base material and dispersant by mass: 0.1-0.5 part of crystal granular pearl powder, 0.5-1 part of wear-resistant granular silver dots, 0.5-1 part of wear-resistant granular gold dots and 0.1-0.5 part of pigment;
s2, stirring and mixing: fully stirring the raw materials prepared in the step S1 in a stirring device for not less than 30 min;
s3, shearing: the mixed material is firstly prepared into a color master batch substrate with a special color effect through a high-shear double screw rod, so that color materials are fully dispersed, and a double-screw rod side feeding system is used for feeding, so that the grinding and shearing of particles during melt blending are reduced, and the particles are prevented from being formed into mud;
s4, melt blending: the materials are mixed by a melt blending method, molecules of various materials are scattered and convectively excited in a molten state, and the material mixing effect is better due to the shearing action of a double screw;
s5, drawing strips and granulating: and (3) bracing by adopting a water bracing mode, and cutting the stripped plastic into granules after drying, wherein the water temperature of the stripped plastic in the S5 after water is not more than 50 ℃, and the drying in the S5 adopts a normal-temperature air drying mode for drying, the air speed of air drying is 6-8m/S, and the air drying time is not less than 30S.
Compared with the conventional spraying-free plastic, the invention does not need spraying and one-time injection molding after the material is used in the later period, achieves the effect of no flow pattern and gorgeous flicker, and has the advantages of high product qualification rate, lower cost, environmental protection and no emission of toxic and harmful gases caused by a spraying process. The method has the advantages of no pollution, energy conservation and high efficiency, helps customers improve the market competitiveness of products, selects wear-resistant crystal granular pearl powder or wear-resistant granular silver point gold dots, uses a double-screw side feeding system, reduces grinding and shearing of particles during melt blending, prevents the particles from forming mud, ensures the texture of metal flicker, and cannot accumulate mud-shaped flow lines at a pouring gate.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. The utility model provides an it does not have flow line and exempts from spraying plastics to apply to moulding plastics which characterized in that: the raw materials are as follows by weight: 95-98 parts of base material, dispersant: 0.1 to 0.5 portion of crystal granular pearl powder, 0.5 to 1 portion of wear-resistant granular silver dots, 0.5 to 1 portion of wear-resistant granular gold dots and 0.1 to 0.5 portion of pigment.
2. The injection molding flow-line-free spraying-free plastic used according to claim 1, which is characterized in that: the total mass parts of the crystal granular pearl powder, the wear-resistant granular silver dots and the wear-resistant granular gold dots are 1-3 parts.
3. The injection molding flow-line-free spraying-free plastic used according to claim 1, which is characterized in that: the base material comprises ABS, PP, PMMA, PC, alloy material, flame retardant and modified plastic.
4. The preparation method of the injection molding non-flow-pattern spraying-free plastic, which is disclosed by claim 1, is characterized by comprising the following steps of: the method comprises the following steps:
s1, preparing raw materials: selecting 95-98 parts of base material and dispersant by mass: 0.1-0.5 part of crystal granular pearl powder, 0.5-1 part of wear-resistant granular silver dots, 0.5-1 part of wear-resistant granular gold dots and 0.1-0.5 part of pigment;
s2, stirring and mixing: fully stirring the raw materials prepared in the step S1 in a stirring device for not less than 30 min;
s3, shearing: the mixed material is firstly prepared into a color master batch substrate with a special color effect through a high-shear double screw rod, so that color materials are fully dispersed, and a double-screw rod side feeding system is used for feeding, so that the grinding and shearing of particles during melt blending are reduced, and the particles are prevented from being formed into mud;
s4, melt blending: the materials are mixed by a melt blending method, molecules of various materials are scattered and convectively excited in a molten state, and the material mixing effect is better due to the shearing action of a double screw;
s5, drawing strips and granulating: and (4) bracing by adopting a water bracing mode, and granulating after drying the stripped plastic.
5. The method for preparing the injection molding non-flow-pattern spraying-free plastic according to claim 4, wherein the method comprises the following steps: the water temperature of the stripped plastic after being pulled into the strips in the S5 is not more than 50 ℃.
6. The method for preparing the injection molding non-flow-pattern spraying-free plastic according to claim 4, wherein the method comprises the following steps: and in the step S5, drying is carried out in a normal-temperature air drying mode, wherein the air drying speed is 6-8m/S, and the air drying time is not less than 30S.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710559611.3A CN107189334B (en) | 2017-07-11 | 2017-07-11 | Non-flow-pattern spraying-free plastic for injection molding and preparation method thereof |
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| CN201710559611.3A CN107189334B (en) | 2017-07-11 | 2017-07-11 | Non-flow-pattern spraying-free plastic for injection molding and preparation method thereof |
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| CN107189334A CN107189334A (en) | 2017-09-22 |
| CN107189334B true CN107189334B (en) | 2019-12-20 |
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| CN108641272A (en) * | 2018-05-03 | 2018-10-12 | 苏州优利金新材料有限公司 | A kind of metallic silver exempts to spray ABS material and preparation method thereof |
| CN113214566A (en) * | 2021-06-28 | 2021-08-06 | 惠州市适合颜料塑胶制品有限公司 | Flow pattern master batch and flow pattern plastic |
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| JPS5545753A (en) * | 1978-09-28 | 1980-03-31 | Mitsubishi Rayon Co Ltd | Resin composition with metallic luster |
| CN102942742B (en) * | 2012-12-04 | 2015-04-08 | 上海日之升新技术发展有限公司 | Spray coating-free propene polymer (PP) material with high gloss and metal or pearly-lustre flashing effect and preparation method thereof |
| CN104530569A (en) * | 2015-01-30 | 2015-04-22 | 山东道恩高分子材料股份有限公司 | Environment-friendly high-glossiness colorful polypropylene material and manufacturing method thereof |
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