CN112590106A - Method for preparing plastic medal with marble grains by using full-return material - Google Patents
Method for preparing plastic medal with marble grains by using full-return material Download PDFInfo
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- CN112590106A CN112590106A CN202011423974.2A CN202011423974A CN112590106A CN 112590106 A CN112590106 A CN 112590106A CN 202011423974 A CN202011423974 A CN 202011423974A CN 112590106 A CN112590106 A CN 112590106A
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- Prior art keywords
- injection molding
- color
- medal
- molding machine
- marble
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/58—Details
- B29C45/60—Screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material
Abstract
The invention relates to a method for preparing a plastic medal with marble grains by using full feed back, which comprises the following steps: collecting the disassembled crushed aggregates plates, putting the crushed aggregates plates into a crusher to obtain crushed reclaimed aggregate particles, and then granulating the crushed reclaimed aggregate particles to obtain a reclaimed aggregate raw material; adding the recycled particle raw material into a stirrer, and adding 3-8 wt% of white color master, 0.1-0.8 wt% of blue color master and 0.2-1.6 wt% of auxiliary color master to obtain the recycled particle raw material after color matching; the injection molding machine charging barrel is used for charging the recycled particle raw materials after color mixing, and the temperature of the first section of the injection molding machine is set to be 220-240 ℃; and injecting the fluid extruded by the injection molding machine into the medal mold to obtain the plastic medal with marble grains. Compared with the prior art, the invention fixes the range of the temperature and the back pressure of the screw, so that the color master batch stripes of marble color are not completely dispersed, and the condition of non-homopolymerization of dispersion is avoided, thereby achieving an attractive state and realizing the utilization of 100 percent recycled materials.
Description
Technical Field
The invention relates to a method for preparing a marble grain plastic medal, in particular to a method for preparing the marble grain plastic medal by using full feed back.
Background
The injection molding with marble grains means that the injection molding is obtained by molding through an injection molding machine in a way that special marble grain color master is put into plastic raw materials, and the color of a finished product shows a marble grain effect.
At present, the requirement of plastic parts with marble grains on raw materials is higher, and the injection molding is usually completed by adding special marble grain color master batch into pure raw materials.
In the prior art, when 100% recycled materials are used as raw materials of a product, the requirements on the appearance of the product cannot be met because the color of the recycled materials is too unstable and blackened, so that the growing environmental protection tide in the whole market cannot be met, and the application of the 100% recycled materials cannot be realized.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a method for preparing a plastic medal with marble grains by using full-return materials, wherein the range of the temperature and the back pressure of a screw is fixed, so that the color master batch stripes of marble colors are not completely dispersed, and the condition of non-homopolymerization of dispersion is avoided, thereby achieving an attractive state and realizing the preparation and utilization of 100 percent of recycled materials.
The purpose of the invention can be realized by the following technical scheme:
the method for preparing the plastic medal with the marble texture by using the full-return material comprises the following steps of:
s1: collecting the disassembled crushed aggregates plates, putting the crushed aggregates plates into a crusher to obtain crushed reclaimed aggregate particles, and then granulating the crushed reclaimed aggregate particles to obtain a reclaimed aggregate raw material;
s2: adding the recycled particle raw material obtained in the step S1 into a stirrer, and adding 3-8 wt% of white color master batch, 0.1-0.8 wt% of blue color master batch and 0.2-1.6 wt% of auxiliary color master batch into the recycled particle raw material to obtain a recycled particle raw material after color mixing;
s3: an injection molding machine feeding barrel for adding the color-mixed recycled particle raw material obtained in the S2, wherein the temperature of the first section of the injection molding machine is set to be 220-240 ℃;
s4: injecting the fluid extruded by the injection molding machine in S3 into a medal mold to obtain the marble-grain plastic medal.
Further, the addition amount of the white color masterbatch in S2 is 4 wt% -8 wt%.
Further preferably, the addition amount of the white color master batch in the S2 is 6 wt%.
Further, the addition amount of the blue color master batch in the S2 is 0.2-0.4 wt%.
Further preferably, the addition amount of the blue color master batch in the S2 is 0.3 wt%.
Further, the auxiliary color masterbatch comprises 0.2-0.4 wt% of red color masterbatch and 0.2-0.4 wt% of green color masterbatch.
Further preferably, the auxiliary color masterbatch and the red color masterbatch both account for 0.3 wt% of the recycled particle raw material.
Further, the temperature of the first stage of the injection molding machine in S3 was 230 ℃.
Further, the injection molding machine is a four-section injection molding machine, the temperature of the second section is 225 ℃, and the temperature of the third section is 220 ℃.
Further, the back pressure of the injection molding machine in S4 was set to 10%.
Compared with the prior art, the invention has the following advantages:
1) according to the technical scheme, 3-8 wt% of high-purity white color master batch is added into 100% of recycled materials, so that the stability of the bottom color of a product obtained from 100% of recycled materials is realized, 0.1-0.8 wt% of blue color master batch and 0.2-1.6 wt% of auxiliary color master batch are matched, gradient solidification is realized among color master batches with different melting points through the limitation of four-section temperature, and the final color master batch stripes of marble colors are realized.
2) Because the ranges of the temperature and the back pressure of the screw are fixed, the color master batch stripes of marble color are not completely dispersed, and the condition of dispersion and non-homopolymerization is avoided, so that an attractive state is achieved, and the preparation and utilization of 100% reclaimed materials are realized.
Drawings
Fig. 1 is a picture of a marble-grain plastic medal product manufactured in the example.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Example 1
In this embodiment, the disassembled products that are sold in the market are crushed and then pelletized, and the obtained recycled materials are subjected to injection molding to produce plastic medal products, wherein 6% of high-purity white color master batches are added to stabilize the ground color of the products, and then three marble line color master batches (the colors are red, blue and green) are added, and the adding proportion is 0.3%. Finally, the plastic medal product is produced in an injection molding mode, wherein the temperature and the back pressure of the screw are controlled during injection molding (the temperature of the first section is 230 ℃, the temperature of the second section is 225 ℃, the temperature of the third section is 220 ℃, and the back pressure is set to be 10%), and through the limitation of the temperature of a four-section injection molding machine, the gradient solidification is realized among color masterbatches with different melting points, and the color master batch stripes of the final marble color are realized.
Injecting the fluid extruded by the injection molding machine into a medal mold to obtain the plastic medal with marble grains, so that the marble grains can reach the most beautiful state, and the obtained plastic medal with marble grains is referred to as the medal corresponding to the left 1 in the figure 1.
Example 2
In this embodiment, the disassembled products that are sold in the market are crushed and then pelletized, and the obtained recycled materials are subjected to injection molding to produce plastic medal products, wherein 4% of high-purity white color master batches are added to stabilize the ground color of the products, and then three marble line color master batches (the colors are red, blue and green) are added, and the adding proportion is 0.2%. Finally, the plastic medal product is produced in an injection molding mode, wherein the temperature and the back pressure of the screw are controlled during injection molding (the temperature of the first section is 220 ℃, the temperature of the second section is 225 ℃, the temperature of the third section is 220 ℃, and the back pressure is set to be 10%), and through limitation of the temperature of a four-section injection molding machine, gradient solidification is realized among color masterbatches with different melting points, and color master batch stripes of the final marble color are realized.
Injecting the fluid extruded by the injection molding machine into a medal mold to obtain the plastic medal with marble grains, so that the marble grains can reach the most beautiful state, and the obtained plastic medal with marble grains is referred to as the medal corresponding to the left 2 in the figure 1.
Example 3
In this embodiment, the disassembled products that are sold in the market are crushed and then pelletized, and the obtained recycled materials are subjected to injection molding to produce plastic medal products, wherein 8% of high-purity white color master batches are added to stabilize the ground color of the products, and then three marble line color master batches (the colors are red, blue and green) are added, and the adding proportion is 0.4%. Finally, the plastic medal product is produced in an injection molding mode, wherein the temperature and the back pressure of the screw are controlled during injection molding (the temperature of the first section is 240 ℃, the temperature of the second section is 225 ℃, the temperature of the third section is 220 ℃, and the back pressure is set to be 10%), and through limitation of the temperature of a four-section injection molding machine, gradient solidification is realized among color masterbatches with different melting points, and color master batch stripes of the final marble color are realized.
Injecting the fluid extruded by the injection molding machine into a medal mold to obtain the plastic medal with marble grains, so that the marble grains can reach the most beautiful state, and the obtained plastic medal with marble grains is referred to as a medal corresponding to the left 3 in the figure 1.
Example 4
In this embodiment, the disassembled products that are sold in the market are crushed and then pelletized, and the obtained recycled materials are subjected to injection molding to produce plastic medal products, wherein 6% of high-purity white color master batches are added to stabilize the ground color of the products, and then three marble line color master batches (the colors are red, blue and green) are added, and the adding proportion is 0.4%. Finally, the plastic medal product is produced in an injection molding mode, wherein the temperature and the back pressure of the screw are controlled during injection molding (the temperature of the first section is 240 ℃, the temperature of the second section is 225 ℃, the temperature of the third section is 220 ℃, and the back pressure is set to be 10%), and through limitation of the temperature of a four-section injection molding machine, gradient solidification is realized among color masterbatches with different melting points, and color master batch stripes of the final marble color are realized.
Injecting the fluid extruded by the injection molding machine into a medal mold to obtain the plastic medal with marble grains, so that the marble grains can reach the most beautiful state, and the obtained plastic medal with marble grains is referred to as the medal corresponding to the right 1 in the figure 1.
Example 5
In this embodiment, the disassembled products that are sold in the market are crushed and then pelletized, and the obtained recycled materials are subjected to injection molding to produce plastic medal products, wherein 8% of high-purity white color master batches are added to stabilize the ground color of the products, and then three marble line color master batches (the colors are red, blue and green) are added, and the adding proportion is 0.1%. Finally, the plastic medal product is produced in an injection molding mode, wherein the temperature and the back pressure of the screw are controlled during injection molding (the temperature of the first section is 230 ℃, the temperature of the second section is 225 ℃, the temperature of the third section is 220 ℃, and the back pressure is set to be 10%), and through the limitation of the temperature of a four-section injection molding machine, the gradient solidification is realized among color masterbatches with different melting points, and the color master batch stripes of the final marble color are realized.
Injecting the fluid extruded by the injection molding machine into a medal mold to obtain the plastic medal with marble grains, so that the marble grains can reach the most beautiful state, and the obtained plastic medal with marble grains is referred to as the medal corresponding to the right 2 in the figure 1.
The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (10)
1. A method for preparing a plastic medal with marble grains by using full feed back is characterized by comprising the following steps:
s1: collecting the disassembled crushed aggregates plates, putting the crushed aggregates plates into a crusher to obtain crushed reclaimed aggregate particles, and then granulating the crushed reclaimed aggregate particles to obtain a reclaimed aggregate raw material;
s2: adding the recycled particle raw material obtained in the step S1 into a stirrer, and adding 3-8 wt% of white color master batch, 0.1-0.8 wt% of blue color master batch and 0.2-1.6 wt% of auxiliary color master batch into the recycled particle raw material to obtain a recycled particle raw material after color mixing;
s3: an injection molding machine feeding barrel for adding the color-mixed recycled particle raw material obtained in the S2, wherein the temperature of the first section of the injection molding machine is set to be 220-240 ℃;
s4: injecting the fluid extruded by the injection molding machine in S3 into a medal mold to obtain the marble-grain plastic medal.
2. The method of claim 1, wherein said white color concentrate is added in an amount of 4 wt% to 8 wt% in S2.
3. The method of claim 2, wherein said white color concentrate is added in an amount of 6 wt% in S2.
4. The method of claim 1, wherein said blue color masterbatch is added in an amount of 0.2-0.4 wt% in S2.
5. The method of claim 4, wherein said blue color masterbatch is added in an amount of 0.3 wt% in S2.
6. The method of claim 1, wherein the auxiliary color masterbatch comprises 0.2-0.4 wt% of red color masterbatch and 0.2-0.4 wt% of green color masterbatch.
7. The method of claim 6, wherein said auxiliary color masterbatch and red color masterbatch each comprise 0.3 wt% of recycled pellet raw material.
8. The method of claim 1, wherein said first stage of said injection molding machine at S3 is at a temperature of 230 ℃.
9. The method of claim 8, wherein said injection molding machine is a four-stage injection molding machine, the temperature of the second stage is 225 ℃ and the temperature of the third stage is 220 ℃.
10. The method of claim 1, wherein a back pressure of said injection molding machine is set to 10% in S4.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011423974.2A CN112590106B (en) | 2020-12-08 | 2020-12-08 | Method for preparing plastic medal with marble grains by using full-return material |
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| CN202011423974.2A CN112590106B (en) | 2020-12-08 | 2020-12-08 | Method for preparing plastic medal with marble grains by using full-return material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113372681A (en) * | 2021-05-25 | 2021-09-10 | 天键电声股份有限公司 | Flow pattern material and application thereof on earphone |
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| CN112590106B (en) | 2023-01-24 |
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