CN112029224B - Environment-friendly plastic with controllable transparency and multicolor patterns and preparation method thereof - Google Patents
Environment-friendly plastic with controllable transparency and multicolor patterns and preparation method thereof Download PDFInfo
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- CN112029224B CN112029224B CN202010913999.4A CN202010913999A CN112029224B CN 112029224 B CN112029224 B CN 112029224B CN 202010913999 A CN202010913999 A CN 202010913999A CN 112029224 B CN112029224 B CN 112029224B
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L53/02—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes
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- C08L2201/10—Transparent films; Clear coatings; Transparent materials
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Abstract
The invention belongs to the technical field of plastic alloy preparation, and particularly relates to an environment-friendly plastic with controllable transparency and multicolor patterns and a preparation method thereof; the color master batch comprises 1000 parts of basic polymer 300-700 parts of resin and elastomer 100-700 parts, 15-150 parts of high molecular compatilizer, 2-10 parts of auxiliary agent, 5-15 parts of antioxidant, 1-5 parts of light stabilizer and 1-5 parts of color master batch; the special formula of the invention uses the cooperation and synergy of 1010, 1076, 168, UV-531 or DSTDP, and the plastic changes the transparency and generates good pattern effect by adjusting the formula, and the obtained product has natural and vivid color, fine and vivid; the process is simple, safe and environment-friendly, and avoids the high cost and pollution of secondary processing of plastic products; in addition, the transparency of the environment-friendly plastic is controllable, and can be divided into three types of impermeability, semi-permeability and transparency, so that the defects of transparent plastic products in the market are overcome, and the environment-friendly plastic is suitable for large-scale production.
Description
Technical Field
The invention belongs to the technical field of plastic alloy preparation, and particularly relates to an environment-friendly plastic with controllable transparency and multicolor patterns and a preparation method thereof.
Background
After the thirty-four decades of the twentieth century, plastics have become one of the four fundamental materials in the world today due to the rapid development of synthetic resins. At present, plastic products are increasingly applied to industries such as daily life living, going out, entertainment and the like of human beings. In the current world where the material technical conditions such as material structure, production process and the like meet basic use functions, people begin to pay more and more attention to the natural texture and beauty of materials such as marbling, wood grain, cloud pattern and the like, and the requirement of people on the aesthetic value of products is met. The technical and artistic processing treatment is purposefully carried out on the surface of the material by a merchant, so that the product has the surface characteristics which are not inherent in the material, for example, natural textures such as marble grains and wood grains are displayed on the surface of a plastic product, and the like, so as to meet the requirements of people on pursuing natural spirit and aesthetic requirements. To achieve the above purpose, the processing method commonly used in the market at present and the limitations thereof are as follows:
(1) one-step forming: the one-step molding method comprises double-color injection molding, addition of special color master batch and the like. The double-color injection molding method is used, plastic products with color separation, color mixing or irregular patterns can be obtained, but because the double-color injection molding machine consists of two sets of plasticizing injection devices with completely same structures and specifications, a nozzle has a special structure according to a production mode, and is also provided with two sets of forming dies with completely same structures and capable of rotating and changing positions, the injection molding machine and the dies have high cost, and because a runner of the die for double-color injection molding is longer, the structure is more complex, the flow resistance of injection melting materials is higher, the melting material temperature and the injection pressure during injection are required to adopt higher parameter values, in order to avoid decomposition due to high melting material temperature and longer residence time in the runner, only raw materials with good thermal stability and low melt viscosity can be selected; the special color master batch mainly utilizes different melting points and flow rates between the color master batch and raw materials to cause uneven dispersion and generate natural irregular stripes, but the special color master batch has poor product effect, is difficult to control, has low product grade, has high requirement on an injection molding process, and requires self-investigation of a manufacturer for a corresponding specific process during injection molding, and has low yield.
(2) Secondary processing: the secondary processing of the product means that the plastic raw material is molded by methods such as injection molding, extrusion, blow molding and the like, and the surface treatment process is carried out to achieve the effect desired by people; at present, surface processing technologies such as spraying, printing, sticking, film coating and the like are commonly used for finishing the processing of multicolor pattern effects such as marble patterns, wood grains and the like. However, the finished products manufactured by the processing technologies are susceptible to external environmental factors in the processes of production, storage, transportation and use. The surface appearance effect of the product can be influenced by collision, scratch and the like, and the surface of the product is aged and damaged by light, oxygen, water in the nature and household cleaning products in the using process, so that the multi-color pattern effect of the surface of the product is influenced, and the service life of the product is shortened. In addition, the processing methods have complex process, secondary spraying is needed to achieve the effect of marble grains or other natural grains, the production period is long, the rejection rate is high, the cost is difficult to control, and a large amount of organic reagents are discharged in the production process, so that the environmental pollution is caused, and the ecology is influenced.
The transparent plastic used in the market at present has a single color and is lack of aesthetic property, and only methods such as spraying, printing, film covering and the like can be used for increasing the appearance effect of the transparent plastic, but the light transmittance and transparency of the material are influenced, so that the application range is limited.
In order to complement the defects of the existing processing method and satisfy the natural aesthetic requirements of people, the research on the environment-friendly plastic with controllable transparency and multicolor patterns is urgently needed.
Disclosure of Invention
Aiming at overcoming the defects in the prior art, the invention provides the formula of the environment-friendly plastic with controllable transparency and multicolor patterns and the preparation method thereof, and the raw materials related to the invention are easy to obtain on the market, the cost is reasonable, the yield of the preparation method is high, the production process and the final product have no three wastes, and the environment is safe; and the process has good compatibility with equipment, and is suitable for large-scale mass production.
The present invention achieves the above-described object by the following technical means.
The invention firstly provides an environment-friendly plastic with controllable transparency and multicolor patterns, which comprises the following components in percentage by weight: 1000 parts of basic polymer, 100 parts of auxiliary material, 700 parts of high molecular compatilizer, 15-150 parts of auxiliary agent, 2-10 parts of antioxidant, 5-15 parts of light stabilizer and 1-5 parts of color master batch.
The base polymer is a butylbenzene (pentane) benzene thermoplastic block copolymer; the high-temperature plastic-like material can be efficiently processed and formed at high temperature; the material has physical properties of impact-resistant general thermoplastic plastics at normal temperature; and has good compatibility with general plastics, rubber and auxiliaries, and is an ideal basic polymer material for the current general plastic alloy.
Preferably, the base polymer is SL-803G and/or SL-801G.
The auxiliary material consists of resin and an elastomer; in particular to any one or more of general-purpose polystyrene, high impact polystyrene, polyethylene, polypropylene, polybutylene, ethylene propylene rubber, cis-polyisoprene, trans-polyisoprene, SBS, SIS and hydrogenated copolymer thereof.
The high molecular compatilizer is any one or more of SAN (styrene and acrylonitrile copolymer), MS (styrene-methyl methacrylate copolymer), POE (ethylene-octene copolymer), PP-G-MAH (polyolefin and maleic anhydride graft copolymer), MBS (methyl methacrylate-butadiene-styrene copolymer) or EVA (ethylene-vinyl acetate copolymer).
The auxiliary agent is one or more of stearic acid (Hst), calcium stearate (Cast), ethylene bis-stearic acid amide (EBS), pentaerythritol stearate (PETS), titanium dioxide, microcrystalline wax or mesonic acid amide.
The antioxidant consists of a non-toxic hindered phenol compound and an auxiliary antioxidant;
the nontoxic hindered phenol compound is one or more of 1076, 1010 and 2246 or compound HP-136;
the auxiliary antioxidant is any one or more of phosphite ester, 168, 618, thiodipropionate (DSTDP) or benzofuranone compound.
Preferably, the non-toxic hindered phenol compounds are 1076 and 1010; the auxiliary antioxidant is 168 and/or DSTDP.
The light stabilizer is any one or more of benzophenones or benzotriazoles.
Preferably, the light stabilizer is UV-531 or UV-328.
The color master batch is an opaque organic color master batch or a transparent organic color master batch.
The special formula of the patent uses a quaternary composite additive gasoline synergist; the special formula is specifically the synergistic effect of multiple combinations of 1010, 1076, 168, UV-531 or DSTDP.
The invention also provides a preparation method of the environment-friendly plastic with controllable transparency and multicolor patterns, which comprises the following steps: the initial material mixing uses a 50-liter sealed high-speed stirrer, the rotating speed of the stirrer is less than or equal to 3000rpm, the regulation is convenient, the material temperature is indicated to record the mixing temperature, and the material temperature is controlled by the rotating speed and the mixing time. The initial mixing final temperature can be controlled within the range of 40-90 ℃.
The method comprises the following specific steps:
(1) according to the weight parts, firstly taking the basic copolymer and the auxiliary materials (resin and elastomer), adding the basic copolymer and the auxiliary materials into a high-speed stirrer, and stirring to uniformly mix the materials, so that the materials are not adhered to a sheet, a wall or a bottom; the optimal initial mixing condition is corresponding to a composite plastic system and is determined by self test and investigation;
(2) closing the high-speed stirrer, stopping stirring, opening the cover for inspection, adding the uniformly mixed high-molecular compatilizer, auxiliary agent, antioxidant and light stabilizer after the materials are not adhered to sheets and walls or do not precipitate on the bottom, covering the cover, adjusting the rotating speed to start stirring, wherein the final temperature of the mixed materials is 40-90 ℃, and uniformly adhering the mixed materials on the surface of the granules when the powder is not precipitated on the bottom or adhered on the walls to obtain the materials of the primary mixing grid;
(3) putting the materials after the primary mixing in the step (2) into a co-rotating twin-screw mixing granulator for fine mixing granulation, wherein the materials in the primary mixing grid are added in a cutting mode from top to bottom in a streamline manner when being added into a twin-screw extrusion granulator; when the materials are added into the extrusion granulator, the materials cannot be directly thrown into the granulator and need to be fed along the edge; setting the screw rotation speed of the unit and the temperature of the granulator; the rotating speed of the screw is 100-300 rpm, and the screw is regulated and controlled according to different formulas and productivity; the temperature of the granulator is gradually increased from an inlet to 190-210 ℃ at 2/3 from 150 ℃, and then is reduced to 180-200 ℃ of a die to ensure that the mixture is fully melted and mixed, and the heating temperature of the mixture is controlled as low as possible;
the double-screw unit is divided into 12 sections of independent temperature control areas, and a water cooling and heating system is automatically adjusted according to a set value; the 6 section, the 8 section and the 10 section are respectively provided with a normal pressure exhaust port and two vacuum exhaust ports to ensure that low boiling point substances are pumped out in vacuum; the material strips extruded from the die head of the extruder enter a cold water tank and a granulator to finally obtain colorless main material granules;
(4) and (3) adding the colorless main material granules and the color master batch material prepared in the step (3) into an injection molding machine according to corresponding use amounts for injection molding, wherein the injection molding temperature is 160-220 ℃, the maximum volume of a control mold is 60-70% of the injection molding amount of the machine, the injection pressure is 3-8 PMA, the pressure maintaining time is 10-20 seconds, the fullness degree of the inner cavity of the mold is ensured, after the material is cooled and molded, demolding is carried out, and then the finished product with patterns can be obtained, and different transparency effects can be obtained according to the adjustment of the formula.
Further, the rotating speed of the stirring in the step (1) is 1000-3500 rpm, and the time is 1-10 min.
Further, the rotating speed of the stirring in the step (2) is 1000-3500 rpm, and the time is 1-10 min.
In addition, regarding the twin-screw extrusion granulator set control conditions:
the twin-screw extruder granulator set used in the examples was a company designed proprietary apparatus, a devolatilizer extruder with 25 screw diameter and L/D48, with 1-2 feed ports and 3-4 vents (one atmospheric vent, 2-3 vacuum vents). The feed inlet is protected with low pressure pure nitrogen, prevents to bring the air in, and this unit product quality mainly depends on the kind, the geometric dimension and the arrangement order of wherein screw thread original. This extrude granulator has reduced the material and has received the degree of shearing on the screw element is constituteed to deformation improves the surface and updates the transform speed and improve the mixed effect.
The rotation speed of the screw is generally 100-300 rpm, and the adjustment and control are carried out according to different formulas and productivity. The twin-screw unit is divided into 12 sections of independent temperature control areas, and a water cooling and heating system is automatically adjusted according to a set value. The temperature of the granulator is gradually increased from an inlet, generally from 150 ℃ to 190-210 ℃ at 2/3, and then is reduced to 180-200 ℃ of a die head, so as to ensure the aim of full melting and mixing and control the heating temperature of the mixture to be lower as much as possible. Three exhaust ports on the unit are used for exhausting air carried by solid materials and original organic volatile substances of various raw materials, and finally the exhaust ports can be vacuumized to reduce the volatile substances to be below 0.1%.
The temperature of the invention is 120-220 ℃, the lower operation temperature is selected as much as possible under the condition of ensuring the uniform mixing of the melt, and the degree of the thermal oxidation reaction is reduced.
The invention has the advantages and technical effects that:
(1) according to the invention, different transparencies and multicolor patterns are obtained by adjusting the matching of the basic polymer, the auxiliary resin and the elastomer with the common color master batch, and meanwhile, the physical property parameters of the final finished product can be controlled in a large range by adjusting the specific formula proportion of the main materials; on the other hand, the transparency of the plastic is changed and a good pattern effect is generated by adjusting the formula, so that the cost is reduced; at present, how to obtain specific multicolor pattern effect and adjust transparency, and how to simultaneously use specific raw materials to obtain specific physical properties are not the basic common knowledge in the industry, wherein the content relates to three parts of a formula, a mixed granulation process and injection molding equipment selection and process.
(2) The invention utilizes three characteristics of microscopic phase separation of a basic polymer, a chemical method nano material and a macromolecular sequence arrangement multiblock. And the macromolecular structure property difference of different auxiliary materials, the compatibility of the plastic alloy is adjusted, the transparency and the different adsorption rates of dyes and pigments are controlled according to different reflection degrees of visible light, the plastic alloy similar to the natural marble is prepared, the plastic alloy has patterns, the transparency is controllable, the plastic alloy can be divided into three types of opaque, semi-transparent and transparent, and the defect of transparent plastic products in the market is overcome.
(3) The plastic alloy prepared by the invention is environment-friendly and nontoxic, can directly contact food cosmetics and the like, and belongs to food-grade materials. The plastic alloy is environment-friendly and pollution-free in the production process, low in requirement on injection molding conditions, high in yield, suitable for large-scale production, and capable of being used in multiple fields of electronic parts, cosmetic boxes, home furnishing, daily chemical packaging and the like.
Drawings
FIG. 1 is a photograph showing the appearance of the plastic prepared in the comparative example.
FIG. 2 is a picture of the appearance of the green plastic prepared in example 2.
FIG. 3 is a picture of the appearance of the eco-friendly plastic prepared in example 3.
FIG. 4 is a picture of the appearance of the eco-friendly plastic prepared in example 4.
Detailed Description
The invention is further illustrated by the following examples.
Comparative example:
(1) firstly, taking a base polymer and auxiliary materials, adding the base polymer and the auxiliary materials into a high-speed stirrer, selecting transparent styrene-butadiene impact-resistant resin SL-803G, GPPS as a specific material, and carrying out primary mixing for 2 minutes under the condition of 2500 revolutions per minute to uniformly mix the materials without sticking sheets, sticking walls or precipitating on the bottom;
(2) stopping the high-speed mixer, after the cover opening inspection meets the requirements, adding a uniformly mixed high-molecular compatilizer, an auxiliary agent, an antioxidant and a light stabilizer, specifically selecting EBS, PETS, an anti-aging agent 168, 1010, 176, UV-531, Hst and microcrystalline wax as materials, uniformly mixing the materials to obtain powder, covering the powder to start stirring, performing primary mixing for 4 minutes at 2500 rpm to adsorb the powder on plastic particles, wherein the final temperature of the primary mixing is 70 ℃, stopping the machine to open the cover to inspect, and when the powder does not sink or stick to the wall, uniformly adhering to the surface of the granules to obtain the material of a primary mixing grid;
(3) putting the materials in the primary mixing grid into a co-rotating twin-screw mixing granulator for fine mixing granulation, wherein the materials in the primary mixing grid are added in a streamline form from top to bottom in a cutting mode when being added into a twin-screw extrusion granulator; when the materials are added into the extrusion granulator, the materials cannot be directly thrown into the granulator and need to be fed along the edge; the conveying capacity of a single-screw feeder and an extrusion granulator is 1-2 kg/h, the screw rotating speed of a unit is 250rmp, and the temperature of the granulator is arranged as follows: 150 deg.C, 170 deg.C, 180 deg.C, 190 deg.C, 200 deg.C, 210 deg.C, 200 deg.C, 190 deg.C, 180 deg.C. The 6 section, the 8 section and the 10 section are respectively provided with a normal pressure exhaust port and two vacuum exhaust ports to ensure that low boiling point substances are pumped out in vacuum. The melt strip extruded from the die head of the extruder enters a cold water tank and a granulator to finally obtain colorless main material granules with the diameter of 3x5 mm;
(4) adding the color master batch and the colorless main material granules obtained in the step (3) into an injection molding machine for injection molding; the injection molding temperature is 160 ℃, 170 ℃, 180 ℃, 190 ℃ and 195 ℃, the temperature can be adjusted according to different formulas, the maximum volume of the mold is controlled to be 70% of the injection molding amount of the machine, the injection pressure is 3 PMA-8 PMA, the pressure maintaining time is 10-20 seconds, and the fullness degree of the inner cavity of the mold is ensured; and cooling and molding the materials, and demolding to obtain the injection molding finished product.
Table 1: the components and proportions of the comparative examples are given in the following table:
example 1:
the components and proportions of example 1 are shown in the table below, and the preparation is carried out in the same manner as in the comparative example, except that the stirring speed is 2000rpm, the initial mixing final temperature is 65 ℃ by sampling and observing after 3 minutes and 6 minutes of initial mixing, and the screw speed of the screw set is adjusted to 200 rpm.
Table 2: composition and ratio of example 1
Example 2:
the components and ratios of example 2 are shown in table 3. The specific procedure was the same as in example 1.
Table 3: composition and ratio of the components of example 2
| Name (R) | Parts by weight | Name (R) | Parts by weight |
| SL-803G | 400 | 1010 | 1 |
| GPPS | 600 | 1076 | 2 |
| HIPS | 5 | 168 | 2 |
| SAN | 100 | DSTDP | 1 |
| MS | 5 | UV-531 | 1 |
| SIS | 10 | HSt | 1 |
| EBS | 5 | Cast | 1 |
| Mesogenic acid amides | 2 | Microcrystalline wax | 1 |
| Transparent organic color master batch | 1-3 |
Example 3:
the components and the mixture ratio of the example 3 are shown in the table 4, and the specific preparation process is the same as that of the example 1.
Table 4: composition and formulation of example 3
Table 5: comparative table of properties of various examples
| Comparative examples | Example 1 | Example 2 | Example 3 | |
| Yield strength (Mpa) | 38.8 | 43.2 | 46.0 | 26.5 |
| Elongation at yield (%) | 9.0 | 7.2 | 2.4 | 0.9 |
| Breaking stress (Mpa) | 42.0 | 46.2 | 54.0 | 31.0 |
| Elongation at Break (%) | 60.0 | 56.7 | 20.5 | 72.4 |
| Maximum bending strain (%) | 4.5 | 3.7 | 2.0 | 1.4 |
| Flexural modulus (Mpa) | 1300 | 1600 | 1850 | 1190 |
| Flexural strength (Mpa) | 32.2 | 28.5 | 22.0 | 13.5 |
| Cantilever impact strength (KJ/square meter) | 7.8 | 6.9 | 5.6 | 4.8 |
| Vicat softening point (. degree. C.) | 89.4 | 91.4 | 86.4 | 86 |
| Hardness (Shao D) | 79 | 81 | 83 | 73 |
| Melt index (200 ℃, 5 kg)) | 7.8 | 9.3 | 10.2 | 7.8 |
| Transmittance (%) | 90 | 89 | 34 | 17 |
| Haze (%) | 3.2 | 3.4 | 8.7 | 100 |
| Coefficient of pattern | 0 | 4 | 6 | 8 |
According to the data, the invention realizes the controllable adjustment of transparency and the effect of multicolor patterns by adjusting the formula data on the premise of not influencing the physical properties of plastics; the preparation method has high yield, no three wastes in the production process and the final product, safety and environmental protection; and the process has good compatibility with equipment, and is suitable for large-scale mass production.
As can be seen from fig. 1 to 4, the color and transparency changes caused by the formula adjustment are completely transparent and transparent in fig. 1; FIG. 2 is a transparent pattern with natural moire; FIG. 3 is a semi-transparent pattern, which is natural; fig. 4 shows an opaque pattern, such as jade, natural and durable.
The names of the corresponding specific components are as follows:
description of the drawings: the above embodiments are only used to illustrate the present invention and do not limit the technical solutions described in the present invention; thus, while the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted; all such modifications and variations are intended to be included herein within the scope of this disclosure and the present invention and protected by the following claims.
Claims (5)
1. The environment-friendly plastic with controllable transparency and multicolor patterns is characterized by comprising the following components in parts by weight: 500 parts of base polymer SL-803G, 200 parts of general-purpose polystyrene, 300 parts of polypropylene, 10 parts of high impact polystyrene, 10 parts of a high molecular compatilizer polyolefin and maleic anhydride graft copolymer, 5 parts of a high molecular compatilizer ethylene-octene copolymer, 5 parts of auxiliary ethylene bis stearamide, 3 parts of auxiliary pentaerythritol stearate, 2-5 parts of impermeable organic color master batch, 3 parts of antioxidant 1010, 2 parts of antioxidant 1076, 2 parts of antioxidant 168, 1 part of antioxidant thiodipropionate, 2 parts of light stabilizer UV-531, 1 part of auxiliary titanium dioxide, 2 parts of auxiliary calcium stearate and 1 part of auxiliary microcrystalline wax.
2. The method for preparing the environment-friendly plastic with controllable transparency and multicolor decorative patterns according to claim 1, which is characterized by comprising the following steps:
(1) according to the weight parts, firstly, taking a base polymer, general-purpose polystyrene, polypropylene and high impact polystyrene, adding the base polymer, the general-purpose polystyrene, the polypropylene and the high impact polystyrene into a high-speed stirrer, and stirring to uniformly mix the materials, so that the materials are not stuck into sheets, walls or precipitates at the bottom;
(2) stopping stirring, adding the uniformly mixed polymer compatilizer, auxiliary agent, antioxidant and light stabilizer, continuing stirring, wherein the final temperature of the mixed material is 40-90 ℃, and uniformly adhering the powder on the surface of the granules when the powder does not sink or stick to the wall, thus obtaining the material of a primary mixing grid;
(3) putting the materials after the primary mixing in the step (2) into a co-rotating twin-screw mixing granulator for fine mixing granulation, wherein when the materials in the primary mixing grid are added into the twin-screw extruding granulator, the materials need to be fed along the edge and are added in a cutting mode from top to bottom in a streamline manner; setting the screw rotation speed of the unit and the temperature of the granulator; the double-screw unit is divided into 12 sections of independent temperature control areas, and a normal pressure exhaust port and two vacuum exhaust ports are respectively arranged at 6 sections, 8 sections and 10 sections; the material strips extruded from the die head of the extruder enter a cold water tank and a granulator to finally obtain colorless main material granules;
(4) and (3) adding the colorless main material granules and the color master batch prepared in the step (3) into an injection molding machine for injection molding, wherein the injection molding temperature is 160-220 ℃, the maximum volume of a control mold is 60-70% of the injection molding amount of the machine, the injection pressure is 3 PMA-8 PMA, the pressure maintaining time is 10-20 seconds, the inner cavity fullness of the mold is ensured, and after the material is cooled and molded, demolding is carried out, so as to obtain the final product.
3. The method for preparing the environment-friendly plastic with controllable transparency and multicolor patterns according to claim 2, wherein in the step (1), the stirring speed is 1000-3500 rpm for 1-10 min.
4. The method for preparing the environment-friendly plastic with controllable transparency and multicolor patterns according to claim 2, wherein in the step (2), the rotation speed of the continuous stirring is 1000-3500 rpm, and the time is 1-10 min.
5. The method for preparing the environment-friendly plastic with controllable transparency and multicolor decorative patterns according to claim 2, wherein in the step (3), the rotation speed of the set of screws is 100-300 rpm; the temperature of the granulator is as follows: the temperature is 150-210 ℃, and the specific temperature rising program is as follows: the temperature of the material is gradually increased from the inlet to 190-210 ℃ from 150 ℃, and then is reduced to 180-200 ℃ of the die.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4073831A (en) * | 1974-02-02 | 1978-02-14 | Sumitomo Chemical Company, Limited | Thermoplastic resin composition |
| JPS6065044A (en) * | 1983-09-20 | 1985-04-13 | Asahi Chem Ind Co Ltd | Styrene polymer composition |
| CN104086911A (en) * | 2014-07-14 | 2014-10-08 | 东莞市德诚塑化科技有限公司 | Transparent impact-resistance polystyrene and preparation method thereof |
| CN109666240A (en) * | 2018-12-26 | 2019-04-23 | 金旸（厦门）新材料科技有限公司 | A kind of high rigidity light diffusion K resin material and preparation method thereof |
| CN110607004A (en) * | 2019-09-20 | 2019-12-24 | 南京元初科技有限公司 | Environment-friendly composite plastic with pearlescent effect and preparation method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08208919A (en) * | 1994-02-04 | 1996-08-13 | Asahi Chem Ind Co Ltd | Thermoplastic polymer molding having marbled appearance, its production and pattern-forming material used therefor |
| JP3479167B2 (en) * | 1995-07-19 | 2003-12-15 | 旭化成株式会社 | Method for producing thermoplastic polymer molded article having marble pattern |
| CN101367980A (en) * | 2008-10-08 | 2009-02-18 | 潘家红 | Scagliola plastic and prescription thereof |
| CN104479283B (en) * | 2014-12-15 | 2018-07-13 | 上海锦湖日丽塑料有限公司 | It is a kind of to exempt from spraying aesthetic resin composition and preparation method thereof with jade effect |
| CN105906940B (en) * | 2016-05-27 | 2018-10-09 | 中山大学惠州研究院 | A kind of marble matter or wooden 3D printing plastics and preparation method thereof |
| CN109135061B (en) * | 2018-08-17 | 2021-07-20 | 三椒口腔健康股份有限公司 | Marble-imitated tooth brush handle and preparation method thereof |
-
2020
- 2020-09-03 CN CN202111288723.2A patent/CN114163765B/en active Active
- 2020-09-03 CN CN202010913999.4A patent/CN112029224B/en active Active
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4073831A (en) * | 1974-02-02 | 1978-02-14 | Sumitomo Chemical Company, Limited | Thermoplastic resin composition |
| JPS6065044A (en) * | 1983-09-20 | 1985-04-13 | Asahi Chem Ind Co Ltd | Styrene polymer composition |
| CN104086911A (en) * | 2014-07-14 | 2014-10-08 | 东莞市德诚塑化科技有限公司 | Transparent impact-resistance polystyrene and preparation method thereof |
| CN109666240A (en) * | 2018-12-26 | 2019-04-23 | 金旸（厦门）新材料科技有限公司 | A kind of high rigidity light diffusion K resin material and preparation method thereof |
| CN110607004A (en) * | 2019-09-20 | 2019-12-24 | 南京元初科技有限公司 | Environment-friendly composite plastic with pearlescent effect and preparation method thereof |
Also Published As
| Publication number | Publication date |
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| CN114163765A (en) | 2022-03-11 |
| CN114031885B (en) | 2024-01-09 |
| CN114163765B (en) | 2024-01-09 |
| CN114031885A (en) | 2022-02-11 |
| CN112029224A (en) | 2020-12-04 |
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