CN113897019A - Preparation method of recyclable packing box containing polypropylene synthetic paper - Google Patents
Preparation method of recyclable packing box containing polypropylene synthetic paper Download PDFInfo
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- CN113897019A CN113897019A CN202111306188.9A CN202111306188A CN113897019A CN 113897019 A CN113897019 A CN 113897019A CN 202111306188 A CN202111306188 A CN 202111306188A CN 113897019 A CN113897019 A CN 113897019A
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- 239000004743 Polypropylene Substances 0.000 title claims abstract description 41
- -1 polypropylene Polymers 0.000 title claims abstract description 41
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 41
- 238000012856 packing Methods 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 239000000945 filler Substances 0.000 claims abstract description 20
- 229920005606 polypropylene copolymer Polymers 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 13
- 239000005995 Aluminium silicate Substances 0.000 claims description 19
- 235000012211 aluminium silicate Nutrition 0.000 claims description 19
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 19
- 238000001354 calcination Methods 0.000 claims description 17
- 238000002156 mixing Methods 0.000 claims description 17
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 10
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 10
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 10
- 239000002131 composite material Substances 0.000 claims description 10
- 229920001971 elastomer Polymers 0.000 claims description 10
- 239000000806 elastomer Substances 0.000 claims description 10
- 238000004806 packaging method and process Methods 0.000 claims description 10
- 238000009210 therapy by ultrasound Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 8
- 238000001125 extrusion Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 6
- 239000001856 Ethyl cellulose Substances 0.000 claims description 5
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 claims description 5
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 5
- 239000002250 absorbent Substances 0.000 claims description 5
- 230000002745 absorbent Effects 0.000 claims description 5
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 5
- 238000007796 conventional method Methods 0.000 claims description 5
- 239000008367 deionised water Substances 0.000 claims description 5
- 229910021641 deionized water Inorganic materials 0.000 claims description 5
- XJWSAJYUBXQQDR-UHFFFAOYSA-M dodecyltrimethylammonium bromide Chemical compound [Br-].CCCCCCCCCCCC[N+](C)(C)C XJWSAJYUBXQQDR-UHFFFAOYSA-M 0.000 claims description 5
- 229920001249 ethyl cellulose Polymers 0.000 claims description 5
- 235000019325 ethyl cellulose Nutrition 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 238000012986 modification Methods 0.000 claims description 5
- 230000004048 modification Effects 0.000 claims description 5
- 125000004368 propenyl group Chemical group C(=CC)* 0.000 claims description 5
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims description 5
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 5
- 238000007493 shaping process Methods 0.000 claims description 5
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 5
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 5
- 239000011787 zinc oxide Substances 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 4
- 238000007639 printing Methods 0.000 abstract description 9
- 238000004064 recycling Methods 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 8
- 238000004898 kneading Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
- B29D7/01—Films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2351/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
- C08J2351/06—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2401/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
- C08J2401/08—Cellulose derivatives
- C08J2401/26—Cellulose ethers
- C08J2401/28—Alkyl ethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/10—Homopolymers or copolymers of propene
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- 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
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
-
- 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
- C08K9/00—Use of pretreated ingredients
-
- 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
- C08K9/00—Use of pretreated ingredients
- C08K9/02—Ingredients treated with inorganic substances
-
- 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
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
-
- 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
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Packages (AREA)
Abstract
The invention discloses a preparation method of a recyclable packing box containing polypropylene synthetic paper, belonging to the technical field of packing and printing and comprising the following steps: (1) preparing a modified polypropylene copolymer, (2) preparing a modified filler, (3) preparing a premix, and (4) preparing a finished product. The method is simple, and the prepared packing box has the characteristics of strong weather resistance, stable mechanical quality, good processability, easy recycling and the like.
Description
Technical Field
The invention belongs to the technical field of package printing, and particularly relates to a preparation method of a recyclable packing box containing polypropylene synthetic paper.
Background
The polypropylene synthetic paper has good comprehensive performance, so that the polypropylene synthetic paper is widely used in the packaging and printing industry and is generally used for printing high-grade artworks, maps, paintings and books, high-grade books and periodicals and the like. Although the printing paper has better water resistance, temperature resistance and strength than common printing paper, the printing paper cannot effectively meet the products or fields with higher requirements such as printing and the like in terms of the current products on the market. Furthermore, it is the short plates with partial performance that exhibit unsatisfactory quality when recycled.
Disclosure of Invention
The invention aims to solve the existing problems and provides a preparation method of a recyclable packing box containing polypropylene synthetic paper.
The invention is realized by the following technical scheme:
a preparation method of a recyclable packing box containing polypropylene synthetic paper comprises the following steps:
(1) preparation of modified polypropylene copolymer:
blending the polypropylene grafted by the methyl methacrylate and the propenyl elastomer, and uniformly stirring to obtain a modified polypropylene copolymer for later use;
(2) preparing modified filler:
a. putting kaolin into a calcining furnace, calcining for 1-2 h, and taking out for later use;
b. adding kaolin into the composite modified liquid, carrying out ultrasonic treatment for 40-50 min, and filtering out for later use;
c. carrying out microwave treatment on kaolin, and taking out the kaolin after 5-8 min to obtain a modified filler;
(3) preparing a premix:
a. weighing the following components in parts by weight: 60-65 parts of the modified polypropylene copolymer prepared in the step (1), 10-15 parts of the modified filler prepared in the step (2), 25-30 parts of calcium carbonate, 3-6 parts of ethyl cellulose and 0.2-0.4 part of an ultraviolet absorbent;
b. mixing the raw materials together, and mixing for 20-25 min to obtain a premix for later use;
(4) and (3) preparing a finished product:
a. putting the premix obtained in the step (3) into an extruder, and shaping and curing after extruding to form a film to obtain polypropylene synthetic paper for later use;
b. and c, processing the polypropylene synthetic paper obtained in the operation a according to a conventional method to prepare the packing box.
Further, the weight ratio of the methyl methacrylate grafted polypropylene and the propylene-based elastomer in the step (1) is 25-28: 1.
further, the temperature in the calcining furnace is controlled to be 800-860 ℃ during the calcining treatment in the operation a of the step (2).
Further, the composite modifying solution in the operation b of the step (2) is composed of the following substances in parts by weight:
2-5 parts of dodecyl trimethyl ammonium bromide, 5-8 parts of sodium hexametaphosphate, 10-15 parts of nano zinc oxide, 4-8 parts of a silane coupling agent and 180-200 parts of deionized water.
Further, the frequency of the ultrasonic wave is controlled to be 600-700 kHz during the ultrasonic treatment in the step (2) and the operation b.
Further, the power of the microwave is controlled to be 300-350W during the microwave treatment in the operation c of the step (2).
Further, the temperature of kneading is controlled to 70 to 80 ℃ in the kneading treatment in the operation b of the step (3).
Further, the temperature is controlled to be 210-220 ℃ during the extrusion in the operation a in the step (4).
Compared with the prior art, the invention has the following advantages:
the application provides a preparation method of a recyclable packing box containing polypropylene synthetic paper, which greatly changes the production process and components of the packing box, wherein, the preparation of the modified polypropylene copolymer and the modified filler is firstly carried out, the modified polypropylene copolymer ensures that the paper has good basic characteristics, the weather resistance and the water resistance are improved, the added modified filler is a reinforced component processed by taking kaolin as a matrix, it has larger specific surface area and good compatibility, can obviously enhance the strength and the weather resistance of paper, and the surface smoothness and the printing reprocessing performance of the paper can be improved, and the paper is finally mixed with other components for extrusion, so that the thickness processable range of the paper is improved by using an extrusion molding mode, and the preparation of different types of packing boxes is facilitated. The finally prepared packaging box has the characteristics of strong weather resistance, stable mechanical quality, good processability, easy recycling and the like, and has great market competitiveness and popularization and application values.
Detailed Description
Example 1
A preparation method of a recyclable packing box containing polypropylene synthetic paper comprises the following steps:
(1) preparation of modified polypropylene copolymer:
blending the polypropylene grafted by the methyl methacrylate and the propenyl elastomer, and uniformly stirring to obtain a modified polypropylene copolymer for later use;
(2) preparing modified filler:
a. putting kaolin into a calcining furnace, calcining for 1h, and taking out for later use;
b. adding kaolin into the composite modified liquid, performing ultrasonic treatment for 40min, and filtering out for later use;
c. carrying out microwave treatment on kaolin, and taking out after 5min to obtain the modified filler;
(3) preparing a premix:
a. weighing the following components in parts by weight: 60 parts of the modified polypropylene copolymer prepared in the step (1), 10 parts of the modified filler prepared in the step (2), 25 parts of calcium carbonate, 3 parts of ethyl cellulose and 0.2 part of an ultraviolet absorbent;
b. mixing the above raw materials together, and mixing for 20min to obtain premix;
(4) and (3) preparing a finished product:
a. putting the premix obtained in the step (3) into an extruder, and shaping and curing after extruding to form a film to obtain polypropylene synthetic paper for later use;
b. and c, processing the polypropylene synthetic paper obtained in the operation a according to a conventional method to prepare the packing box.
When the methyl methacrylate grafted polypropylene and the propylene-based elastomer in the step (1) are blended, the corresponding weight ratio is 25: 1.
in the calcination treatment in operation a of step (2), the temperature in the calciner is controlled to 800 ℃.
The composite modification liquid in the operation b in the step (2) is composed of the following substances in parts by weight:
2 parts of dodecyl trimethyl ammonium bromide, 5 parts of sodium hexametaphosphate, 10 parts of nano zinc oxide, 4 parts of a silane coupling agent and 180 parts of deionized water.
Controlling the frequency of the ultrasonic wave to be 600kHz during the ultrasonic treatment in the operation b of the step (2).
And (3) controlling the power of the microwaves to be 300W during the microwave treatment in the operation c of the step (2).
In the kneading treatment in operation b of step (3), the temperature for kneading was controlled to 70 ℃.
The temperature was controlled to 210 ℃ during the extrusion in operation a of step (4).
Example 2
A preparation method of a recyclable packing box containing polypropylene synthetic paper comprises the following steps:
(1) preparation of modified polypropylene copolymer:
blending the polypropylene grafted by the methyl methacrylate and the propenyl elastomer, and uniformly stirring to obtain a modified polypropylene copolymer for later use;
(2) preparing modified filler:
a. putting kaolin into a calcining furnace, calcining for 1.5h, and taking out for later use;
b. adding kaolin into the composite modified liquid, performing ultrasonic treatment for 45min, and filtering out for later use;
c. carrying out microwave treatment on kaolin, and taking out after 7min to obtain the modified filler;
(3) preparing a premix:
a. weighing the following components in parts by weight: 63 parts of the modified polypropylene copolymer prepared in the step (1), 13 parts of the modified filler prepared in the step (2), 28 parts of calcium carbonate, 5 parts of ethyl cellulose and 0.3 part of an ultraviolet absorbent;
b. mixing the above materials, and mixing for 22min to obtain premix;
(4) and (3) preparing a finished product:
a. putting the premix obtained in the step (3) into an extruder, and shaping and curing after extruding to form a film to obtain polypropylene synthetic paper for later use;
b. and c, processing the polypropylene synthetic paper obtained in the operation a according to a conventional method to prepare the packing box.
The weight ratio of the methyl methacrylate grafted polypropylene and the propylene-based elastomer in the step (1) is 27: 1.
in the calcination treatment in operation a of step (2), the temperature in the calciner is controlled to be 830 ℃.
The composite modification liquid in the operation b in the step (2) is composed of the following substances in parts by weight:
4 parts of dodecyl trimethyl ammonium bromide, 7 parts of sodium hexametaphosphate, 12 parts of nano zinc oxide, 6 parts of a silane coupling agent and 190 parts of deionized water.
The ultrasonic treatment in operation b of step (2) is carried out while controlling the frequency of the ultrasonic wave to 650 kHz.
And (3) controlling the power of the microwaves to be 330W during the microwave treatment in the operation c of the step (2).
In the kneading treatment in operation b of step (3), the temperature for kneading was controlled to 75 ℃.
The temperature was controlled to 215 ℃ during the extrusion in operation a of step (4).
Example 3
A preparation method of a recyclable packing box containing polypropylene synthetic paper comprises the following steps:
(1) preparation of modified polypropylene copolymer:
blending the polypropylene grafted by the methyl methacrylate and the propenyl elastomer, and uniformly stirring to obtain a modified polypropylene copolymer for later use;
(2) preparing modified filler:
a. putting kaolin into a calcining furnace, calcining for 2 hours, and taking out for later use;
b. adding kaolin into the composite modified liquid, performing ultrasonic treatment for 50min, and filtering out for later use;
c. carrying out microwave treatment on kaolin, and taking out after 8min to obtain the modified filler;
(3) preparing a premix:
a. weighing the following components in parts by weight: 65 parts of the modified polypropylene copolymer prepared in the step (1), 15 parts of the modified filler prepared in the step (2), 30 parts of calcium carbonate, 6 parts of ethyl cellulose and 0.4 part of an ultraviolet absorbent;
b. mixing the above raw materials together, and mixing for 25min to obtain premix;
(4) and (3) preparing a finished product:
a. putting the premix obtained in the step (3) into an extruder, and shaping and curing after extruding to form a film to obtain polypropylene synthetic paper for later use;
b. and c, processing the polypropylene synthetic paper obtained in the operation a according to a conventional method to prepare the packing box.
The weight ratio of the methyl methacrylate grafted polypropylene and the propylene-based elastomer in the step (1) is 28: 1.
in the calcination treatment in operation a of step (2), the temperature in the calciner is controlled to 860 ℃.
The composite modification liquid in the operation b in the step (2) is composed of the following substances in parts by weight:
5 parts of dodecyl trimethyl ammonium bromide, 8 parts of sodium hexametaphosphate, 15 parts of nano zinc oxide, 8 parts of a silane coupling agent and 200 parts of deionized water.
Controlling the frequency of the ultrasonic wave to be 700kHz during the ultrasonic treatment in the operation b of the step (2).
And (3) controlling the power of the microwaves to be 350W during the microwave treatment in the operation c of the step (2).
In the kneading treatment in operation b of step (3), the temperature for kneading was controlled to 80 ℃.
The temperature was controlled to 220 ℃ during the extrusion in operation a of step (4).
Comparative example 1
This comparative example 1 is different from example 2 only in that the treatment of operation c in step (2) is omitted, except that the other process steps are the same.
Comparative example 2
This comparative example 2 is different from example 2 only in that the modified filler component is replaced with an equal part by mass of kaolin, except that the process steps are the same.
Comparative example 3
This comparative example 3 is different from example 2 only in that the modified filler component is omitted, except that the process steps are the same.
In order to compare the effects of the invention, the polypropylene synthetic paper prepared in the above example 2 and comparative examples 1 to 3 was subjected to a performance test (in order to avoid errors in the processing and installation of the packing box, the paper reflects the quality of the subsequent finished packing box, and the sizes of the paper samples in each group are controlled to be 100 μm in total thickness, 180mm in width and 180mm in length), and specific comparative data are shown in the following table 1:
TABLE 1
As can be seen from the above table 1, the comprehensive performance of the packaging box prepared by the method of the invention is remarkably improved, and particularly the quality such as strength and the like is remarkably enhanced, so that the service life of the product can be prolonged, the recycling value of the product can be enhanced, and the packaging box has great market competitiveness.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing description, it will be apparent to one skilled in the art that various changes, modifications, equivalents, and improvements may be made without departing from the spirit and scope of the invention.
Claims (8)
1. A preparation method of a recyclable packing box containing polypropylene synthetic paper is characterized by comprising the following steps:
(1) preparation of modified polypropylene copolymer:
blending the polypropylene grafted by the methyl methacrylate and the propenyl elastomer, and uniformly stirring to obtain a modified polypropylene copolymer for later use;
(2) preparing modified filler:
a. putting kaolin into a calcining furnace, calcining for 1-2 h, and taking out for later use;
b. adding kaolin into the composite modified liquid, carrying out ultrasonic treatment for 40-50 min, and filtering out for later use;
c. carrying out microwave treatment on kaolin, and taking out the kaolin after 5-8 min to obtain a modified filler;
(3) preparing a premix:
a. weighing the following components in parts by weight: 60-65 parts of the modified polypropylene copolymer prepared in the step (1), 10-15 parts of the modified filler prepared in the step (2), 25-30 parts of calcium carbonate, 3-6 parts of ethyl cellulose and 0.2-0.4 part of an ultraviolet absorbent;
b. mixing the raw materials together, and mixing for 20-25 min to obtain a premix for later use;
(4) and (3) preparing a finished product:
a. putting the premix obtained in the step (3) into an extruder, and shaping and curing after extruding to form a film to obtain polypropylene synthetic paper for later use;
b. and c, processing the polypropylene synthetic paper obtained in the operation a according to a conventional method to prepare the packing box.
2. The method for preparing the recyclable packaging box containing the polypropylene synthetic paper as claimed in claim 1, wherein the weight ratio of the methyl methacrylate grafted polypropylene and the propylene-based elastomer in the step (1) is 25-28: 1.
3. the method for preparing a recyclable packaging box containing polypropylene synthetic paper as claimed in claim 1, wherein the calcination treatment in the operation a of the step (2) is performed while controlling the temperature in the calcination furnace to be 800-860 ℃.
4. The method for preparing the recyclable packing box containing the polypropylene synthetic paper as claimed in claim 1, wherein the composite modification solution in the operation b of the step (2) is composed of the following substances in parts by weight:
2-5 parts of dodecyl trimethyl ammonium bromide, 5-8 parts of sodium hexametaphosphate, 10-15 parts of nano zinc oxide, 4-8 parts of a silane coupling agent and 180-200 parts of deionized water.
5. The method for preparing the recyclable packaging box containing polypropylene synthetic paper as claimed in claim 1, wherein the ultrasonic frequency is controlled to be 600 to 700kHz during the ultrasonic treatment in the operation b of the step (2).
6. The method for preparing a recyclable packaging box containing polypropylene synthetic paper as claimed in claim 1, wherein the microwave power in the microwave treatment in the operation c of step (2) is controlled to be 300-350W.
7. The method for preparing a recyclable packaging box containing polypropylene synthetic paper as claimed in claim 1, wherein the mixing temperature in the mixing process in the operation b of the step (3) is controlled to be 70 to 80 ℃.
8. The method for preparing a recyclable packaging box containing polypropylene synthetic paper as claimed in claim 1, wherein the extrusion temperature in the operation a of the step (4) is controlled to 210-220 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111306188.9A CN113897019A (en) | 2021-11-05 | 2021-11-05 | Preparation method of recyclable packing box containing polypropylene synthetic paper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111306188.9A CN113897019A (en) | 2021-11-05 | 2021-11-05 | Preparation method of recyclable packing box containing polypropylene synthetic paper |
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| CN113897019A true CN113897019A (en) | 2022-01-07 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2711181A1 (en) * | 2012-09-24 | 2014-03-26 | Nan-Ya Plastics Corporation | The quick-drying print and environmental-friendly biaxially orientated polypropylene synthetic paper |
| CN104943308A (en) * | 2015-06-30 | 2015-09-30 | 安徽双津实业有限公司 | Polypropylene synthetic paper and production method thereof |
| CN106147016A (en) * | 2016-06-29 | 2016-11-23 | 阜阳市远大印刷有限公司 | A kind of PP synthetic paper containing composite modified porous calcium silicate powder body and preparation method thereof |
| CN110230235A (en) * | 2019-06-27 | 2019-09-13 | 河北方大包装股份有限公司 | A kind of dumb light PP synthetic paper of coating and preparation method thereof |
-
2021
- 2021-11-05 CN CN202111306188.9A patent/CN113897019A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2711181A1 (en) * | 2012-09-24 | 2014-03-26 | Nan-Ya Plastics Corporation | The quick-drying print and environmental-friendly biaxially orientated polypropylene synthetic paper |
| CN104943308A (en) * | 2015-06-30 | 2015-09-30 | 安徽双津实业有限公司 | Polypropylene synthetic paper and production method thereof |
| CN106147016A (en) * | 2016-06-29 | 2016-11-23 | 阜阳市远大印刷有限公司 | A kind of PP synthetic paper containing composite modified porous calcium silicate powder body and preparation method thereof |
| CN110230235A (en) * | 2019-06-27 | 2019-09-13 | 河北方大包装股份有限公司 | A kind of dumb light PP synthetic paper of coating and preparation method thereof |
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Application publication date: 20220107 |