CN112252072A - Degradable flame-retardant packaging material and preparation method thereof - Google Patents
Degradable flame-retardant packaging material and preparation method thereof Download PDFInfo
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- CN112252072A CN112252072A CN202011104072.2A CN202011104072A CN112252072A CN 112252072 A CN112252072 A CN 112252072A CN 202011104072 A CN202011104072 A CN 202011104072A CN 112252072 A CN112252072 A CN 112252072A
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/36—Inorganic fibres or flakes
- D21H13/38—Inorganic fibres or flakes siliceous
- D21H13/40—Inorganic fibres or flakes siliceous vitreous, e.g. mineral wool, glass fibres
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/25—Cellulose
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/28—Starch
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/06—Paper forming aids
- D21H21/08—Dispersing agents for fibres
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/34—Ignifugeants
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/10—Packing paper
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- Inorganic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Biological Depolymerization Polymers (AREA)
Abstract
The invention is suitable for the field of packaging materials, and particularly relates to a degradable flame-retardant packaging material which comprises the following raw materials in parts by weight: 50-80 parts of resin composite material; the resin composite material comprises the following components of resin, glass fiber, starch, cellulose and plasticizer, and the method for preparing the resin composite material comprises the steps of adding the resin, the starch, the cellulose and the plasticizer, uniformly stirring, adding the glass fiber, and stirring while vibrating; 15-20 parts of a dispersing agent; 25-30 parts of a flame retardant; 70-100 parts of paper pulp; after the resin combined material and the paper pulp are used in combination, the waterproof performance of the paper box packaging material is improved on the basis of degradability, and the resin and the glass fiber in the resin combined material act on the paper pulp in a matching manner, so that the paper box packaging material has certain tensile strength even under the condition of damage and water inflow.
Description
Technical Field
The invention is suitable for the field of packaging materials, and particularly relates to a degradable flame-retardant packaging material and a preparation method thereof.
Background
The paper box belongs to one kind of paper package, has three major functions of package, namely a protection function, a use function and a sales promotion function, and also has the advantages of good processing performance, easy forming, easy realization of mechanization, automation, high speed and the like of the forming and filling process, is a recyclable 'green package' without environmental pollution, and is widely adopted by countries in the world at present.
The paper box is a paper packaging container formed by combining paper boards through methods of folding, pasting and the like, and the paper box is made of thin paper boards mostly. Because of the limited strength, the volume of the paper box can not be overlarge generally, and the paper box is mostly applied to the outer packages of medium and small commodities, such as medicine boxes, cigarette boxes, cosmetics, daily necessities, and the like; the carton package has flexible structure and exquisite printing, can bring high added value to commodities, and is a common sales package.
The main component of the plastic is resin. The resin means a polymer compound which has not been mixed with various additives. The term resin is originally named as lipids secreted by animals and plants, such as rosin, shellac, and the like. The resin is about 40-100% of the total weight of the plastic.
The basic properties of plastics are largely determined by the nature of the resin, but additives also play an important role. The research on the flame retardant property of plastics mainly focuses on the vertical combustion property of the plastics, and the oxygen demand during combustion is a very important index of the flame retardant property.
The traditional packaging plastic is difficult to degrade after being discarded, thereby causing environmental pollution. The degradable plastic is a plastic which is added with a certain amount of additives (such as starch, modified starch or other celluloses, photosensitizers, biodegradable agents and the like) in the production process to reduce the stability and is easier to degrade in the natural environment.
However, although the discarded paper box can be degraded, the water resistance and the sealing performance of the discarded paper box are not good, the strength is weakened after being affected with damp, especially shopping bags and the like, and the packaging paper bag and the paper box are easily affected with damp and damaged when the paper box travels outside in rainy days, so that articles fall off.
Disclosure of Invention
The invention aims to provide a degradable flame-retardant packaging material 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 degradable flame retardant packaging material comprising: 50-80 parts of resin composite material; the resin composite material comprises the following components of resin, glass fiber, starch, cellulose and plasticizer, and the method for preparing the resin composite material comprises the steps of adding the resin, the starch, the cellulose and the plasticizer, uniformly stirring, adding the glass fiber, and stirring while vibrating; 15-20 parts of a dispersing agent; 25-30 parts of flame retardant; paper pulp, the weight portion of which is 70-100; wherein the paper pulp is prepared by soaking, boiling, washing and beating.
Furthermore, after the resin combined material and the paper pulp are used in a combined manner, the waterproof performance of the paper box packaging material is improved on the basis of degradability, and the resin and the glass fiber in the resin combined material are matched and act on the paper pulp, so that the paper box packaging material has certain tensile strength even under the condition of damage and water inflow; and starch, cellulose and plasticizer in the resin composite material further improve the degradability, and the flame retardant is added to improve the flame retardance of the carton packaging material.
The problem of environmental pollution caused by difficult degradation after the traditional packaging plastic is discarded is solved; however, although the discarded paper box can be degraded, the paper box is not very good in waterproof property and sealing property, the strength is weakened after being affected with moisture, and particularly, a shopping bag and the like are easy to damage a packaging paper bag and the paper box due to moisture when the paper box travels outside in rainy days, so that the articles are dropped.
In the degradable flame-retardant packaging material, the degradable flame-retardant packaging material comprises the following raw materials in parts by weight: 68 parts of resin composite material, 85 parts of paper pulp, 17 parts of dispersing agent and 27 parts of flame retardant; the resin composite material comprises the following components of resin, glass fiber, starch, cellulose and a plasticizer, and the method for preparing the resin composite material comprises the steps of adding the resin, the starch, the cellulose and the plasticizer, uniformly stirring, adding the glass fiber, and stirring while shaking.
The degradable flame-retardant packaging material comprises, by weight, 40-50% of resin, 20-30% of glass fiber, 8-15% of starch, 5-12% of cellulose and 4-10% of plasticizer, and the method for preparing the resin composite material comprises the steps of adding the resin, the starch, the cellulose and the plasticizer, uniformly stirring, adding the glass fiber, and stirring while shaking.
As a further scheme of the degradable flame-retardant packaging material, the resin composition comprises the following components of 48% of resin, 25% of glass fiber, 12% of starch, 8% of cellulose and 7% of plasticizer by weight percent, and the method for preparing the resin composition is to uniformly stir the added resin, starch, cellulose and plasticizer, then add the glass fiber, and stir while shaking.
As a further scheme of the degradable flame-retardant packaging material, the speed of adding the resin, the starch, the cellulose and the plasticizer and stirring uniformly is 580 r/min.
A preparation method of a degradable flame-retardant packaging material comprises the following steps:
s1, stirring the resin composition material in a 26 ℃ temperature environment, and heating at a heating speed of 2-5 ℃/min;
s2, after the temperature is raised to 236 ℃, controlling the temperature to enable the resin composite material to vibrate for 0.2-0.6h in the temperature environment of 236 ℃; and cooling to 78 deg.C at a rate of 3-7 deg.C/min;
s3, adding paper pulp subjected to material soaking, material boiling, material washing and material beating into the resin combined material at the temperature of 78 ℃ at a uniform speed, and stirring; after being stirred uniformly, the dispersant and the flame retardant are added, and then stirring is carried out at the stirring speed of 1000 r/min;
and S4, heating to 100 ℃ after uniformly stirring, evaporating water, and finally drying the paper.
In the preparation method of the degradable flame-retardant packaging material, in the step S1, the resin composition is placed in the temperature environment of 26 ℃ and stirred at the speed of 200 r/min.
In the preparation method of the degradable flame-retardant packaging material, in the step S1, the temperature rising speed is 3 ℃/min.
In the preparation method of the degradable flame-retardant packaging material, in the step S2, the resin composition is vibrated for 0.35h at 236 ℃ in the environment; and the speed of the cooling speed is 5 ℃/min.
In the preparation method of the degradable flame-retardant packaging material, in the step S4, the temperature of the paper baking is gradually increased.
Compared with the prior art, the degradable flame-retardant packaging material comprises the following raw materials in parts by weight: 50-80 parts of resin composite material; the resin composite material comprises the following components of resin, glass fiber, starch, cellulose and plasticizer, and the method for preparing the resin composite material comprises the steps of adding the resin, the starch, the cellulose and the plasticizer, uniformly stirring, adding the glass fiber, and stirring while vibrating; 15-20 parts of a dispersing agent; 25-30 parts of a flame retardant; 70-100 parts of paper pulp; after the resin combined material and the paper pulp are used in a combined manner, the waterproof performance of the paper box packaging material is improved on the basis of degradability, and the resin and the glass fiber in the resin combined material are acted on the paper pulp in a matched manner, so that the paper box packaging material has certain tensile strength even under the condition of damage and water inflow; and starch, cellulose and plasticizer in the resin composite material further improve the degradability, and the flame retardant is added to improve the flame retardance of the carton packaging material.
Detailed Description
Aiming at the environmental pollution caused by difficult degradation of the traditional packaging plastic after being discarded; however, although the discarded paper box can be degraded, the water resistance and the sealing performance of the discarded paper box are not good, the strength is weakened after being affected with moisture, particularly, a shopping bag and the like are easy to cause the problem that the packaging paper bag and the paper box are affected with moisture and damaged when the paper box and the shopping bag are externally walked in rainy days, and the object of the invention is to provide a degradable flame-retardant packaging material and a preparation method thereof, so as to solve the problem.
Furthermore, after the resin combined material and the paper pulp are used in a combined manner, the waterproof performance of the paper box packaging material is improved on the basis of degradability, and the resin and the glass fiber in the resin combined material are matched and act on the paper pulp, so that the paper box packaging material has certain tensile strength even under the condition of damage and water inflow; starch, cellulose and plasticizer in the resin composite material further improve the degradability, and the flame retardant is added to improve the flame retardance of the carton packaging material; in order to achieve the purpose, the invention provides the following technical scheme:
example 1
In an embodiment of the present invention, a degradable flame-retardant packaging material includes:
68 parts of resin composition material; the resin composite material comprises the following components of resin, glass fiber, starch, cellulose and plasticizer, and the method for preparing the resin composite material comprises the steps of adding the resin, the starch, the cellulose and the plasticizer, uniformly stirring, adding the glass fiber, and stirring while vibrating;
17 parts of a dispersing agent; 27 parts of flame retardant; the paper pulp comprises 85 parts by weight of paper pulp; wherein the paper pulp is prepared by soaking, boiling, washing and beating.
The resin composition comprises 48% of resin, 25% of glass fiber, 12% of starch, 8% of cellulose and 7% of plasticizer by weight. The resin, the starch, the cellulose and the plasticizer are added and stirred uniformly at the speed of 580 r/min.
And the preparation method of the degradable flame-retardant packaging material comprises the following steps:
s1, stirring the resin composition material at 200r/min in a temperature environment of 26 ℃, and heating at a heating speed of 3 ℃/min;
s2, after the temperature is raised to 236 ℃, controlling the temperature to enable the resin composite material to vibrate for 0.35h in the temperature environment of 236 ℃; and the temperature is reduced to 78 ℃ at the cooling speed of 5 ℃/min;
s3, adding paper pulp subjected to material soaking, material boiling, material washing and material beating into the resin combined material at the temperature of 78 ℃ at a uniform speed, and stirring; after being stirred uniformly, the dispersant and the flame retardant are added, and then stirring is carried out at the stirring speed of 1000 r/min;
and S4, heating to 100 ℃ after uniformly stirring, evaporating water, and finally drying the paper. And the temperature of the paper drying is gradually and progressively increased.
The formula composition of the degradable flame-retardant packaging material is as follows in the following table 1:
TABLE 1
| Resin composite material | Dispersing agent | Flame retardant | Paper pulp | |
| Parts by weight | 68 | 17 | 27 | 85 |
The formula composition of the degradable flame-retardant packaging material is as follows 2:
TABLE 2
| Resin composition | Glass fiber | Starch | Cellulose, process for producing the same, and process for producing the same | Plasticizer | |
| Weight percent of | 48 | 25 | 12 | 8 | 7 |
Example 2
This example differs from example 1 only in that: the resin composite material comprises the following components of 40% of resin, 20% of glass fiber, 8% of starch, 5% of cellulose and 4% of plasticizer by weight percentage.
Example 3
This example differs from example 1 only in that: the resin composite material comprises the following components of 50% of resin, 30% of glass fiber, 15% of starch, 12% of cellulose and 10% of plasticizer by weight percentage.
Example 4
In an embodiment of the present invention, a degradable flame-retardant packaging material includes:
50 parts of resin composite material; the resin composite material comprises the following components of resin, glass fiber, starch, cellulose and plasticizer, and the method for preparing the resin composite material comprises the steps of adding the resin, the starch, the cellulose and the plasticizer, uniformly stirring, adding the glass fiber, and stirring while vibrating;
15 parts of a dispersing agent; 25 parts of flame retardant; 70 parts of paper pulp; wherein the paper pulp is prepared by soaking, boiling, washing and beating.
The resin composition comprises 40% of resin, 20% of glass fiber, 8% of starch, 5% of cellulose and 4% of plasticizer by weight. The resin, the starch, the cellulose and the plasticizer are added and stirred uniformly at the speed of 580 r/min.
And the preparation method of the degradable flame-retardant packaging material comprises the following steps:
s1, stirring the resin composition material in a 26 ℃ temperature environment, and heating at a heating speed of 2 ℃/min;
s2, after the temperature is raised to 236 ℃, controlling the temperature to enable the resin composite material to vibrate for 0.35h in the temperature environment of 236 ℃; and the temperature is reduced to 78 ℃ at the cooling speed of 5 ℃/min;
s3, adding paper pulp subjected to material soaking, material boiling, material washing and material beating into the resin combined material at the temperature of 78 ℃ at a uniform speed, and stirring; after being stirred uniformly, the dispersant and the flame retardant are added, and then stirring is carried out at the stirring speed of 1000 r/min;
and S4, heating to 100 ℃ after uniformly stirring, evaporating water, and finally drying the paper. And the temperature of the paper drying is gradually and progressively increased.
The formula composition of the degradable flame-retardant packaging material is as follows 3:
TABLE 3
| Resin composite material | Dispersing agent | Flame retardant | Paper pulp | |
| Parts by weight | 50 | 15 | 25 | 70 |
The formula composition of the degradable flame-retardant packaging material is as follows 4:
TABLE 4
| Resin composition | Glass fiber | Starch | Cellulose, process for producing the same, and process for producing the same | Plasticizer | |
| Weight percent of | 40 | 20 | 8 | 5 | 4 |
Example 5
This example differs from example 4 only in that: the degradable flame-retardant packaging material comprises: 68 parts of resin composition material; the resin composite material comprises the following components of resin, glass fiber, starch, cellulose and plasticizer, and the method for preparing the resin composite material comprises the steps of adding the resin, the starch, the cellulose and the plasticizer, uniformly stirring, adding the glass fiber, and stirring while vibrating;
17 parts of a dispersing agent; 27 parts of flame retardant; the paper pulp comprises 85 parts by weight of paper pulp; wherein the paper pulp is prepared by soaking, boiling, washing and beating.
Example 6
This example differs from example 4 only in that: a preparation method of a degradable flame-retardant packaging material comprises the following steps:
s1, stirring the resin composition material at 200r/min in a temperature environment of 26 ℃, and heating at a heating speed of 3 ℃/min;
s2, after the temperature is raised to 236 ℃, controlling the temperature to enable the resin composite material to vibrate for 0.35h in the temperature environment of 236 ℃; and the temperature is reduced to 78 ℃ at the cooling rate of 5 ℃/min.
S3, adding paper pulp subjected to material soaking, material boiling, material washing and material beating into the resin combined material at the temperature of 78 ℃ at a uniform speed, and stirring; after being stirred uniformly, the dispersant and the flame retardant are added, and then stirring is carried out at the stirring speed of 1000 r/min;
and S4, heating to 100 ℃ after uniformly stirring, evaporating water, and finally drying the paper. And the temperature of the paper drying is gradually and progressively increased.
Example 7
This example differs from example 4 only in that: this example differs from example 7 only in that: the resin composite material comprises the following components of 48% of resin, 25% of glass fiber, 12% of starch, 8% of cellulose and 7% of plasticizer by weight percentage.
Example 8
In an embodiment of the present invention, a degradable flame-retardant packaging material includes:
80 parts of resin composite material; the resin composite material comprises the following components of resin, glass fiber, starch, cellulose and plasticizer, and the method for preparing the resin composite material comprises the steps of adding the resin, the starch, the cellulose and the plasticizer, uniformly stirring, adding the glass fiber, and stirring while vibrating;
20 parts of a dispersing agent; 30 parts of flame retardant; paper pulp, the weight portion of which is 100 portions; wherein the paper pulp is prepared by soaking, boiling, washing and beating.
The resin composition comprises 50% of resin, 30% of glass fiber, 15% of starch, 12% of cellulose and 10% of plasticizer by weight. The resin, the starch, the cellulose and the plasticizer are added and stirred uniformly at the speed of 580 r/min.
And the preparation method of the degradable flame-retardant packaging material comprises the following steps:
s1, stirring the resin composition material in a 26 ℃ temperature environment, and heating at a heating speed of 5 ℃/min;
s2, after the temperature is raised to 236 ℃, controlling the temperature to enable the resin composite material to vibrate for 0.6h in the temperature environment of 236 ℃; and the temperature is reduced to 78 ℃ at the cooling rate of 7 ℃/min.
S3, adding paper pulp subjected to material soaking, material boiling, material washing and material beating into the resin combined material at the temperature of 78 ℃ at a uniform speed, and stirring; after being stirred uniformly, the dispersant and the flame retardant are added, and then stirring is carried out at the stirring speed of 1000 r/min;
and S4, heating to 100 ℃ after uniformly stirring, evaporating water, and finally drying the paper. And the temperature of the paper drying is gradually and progressively increased.
The formula composition of the degradable flame-retardant packaging material is as follows 5:
TABLE 5
| Resin composite material | Dispersing agent | Flame retardant | Paper pulp | |
| Parts by weight | 80 | 20 | 30 | 100 |
The formula composition of the degradable flame-retardant packaging material is as follows in table 6:
TABLE 6
| Resin composition | Glass fiber | Starch | Cellulose, process for producing the same, and process for producing the same | Plasticizer | |
| Weight percent of | 50 | 30 | 15 | 12 | 10 |
Example 9
This example differs from example 8 only in that: the degradable flame-retardant packaging material comprises: 68 parts of resin composition material; the resin composite material comprises the following components of resin, glass fiber, starch, cellulose and plasticizer, and the method for preparing the resin composite material comprises the steps of adding the resin, the starch, the cellulose and the plasticizer, uniformly stirring, adding the glass fiber, and stirring while vibrating;
17 parts of a dispersing agent; 27 parts of flame retardant; the paper pulp comprises 85 parts by weight of paper pulp; wherein the paper pulp is prepared by soaking, boiling, washing and beating.
Example 10
This example differs from example 8 only in that: a preparation method of a degradable flame-retardant packaging material comprises the following steps:
s1, stirring the resin composition material at 200r/min in a temperature environment of 26 ℃, and heating at a heating speed of 3 ℃/min;
s2, after the temperature is raised to 236 ℃, controlling the temperature to enable the resin composite material to vibrate for 0.35h in the temperature environment of 236 ℃; and the temperature is reduced to 78 ℃ at the cooling rate of 5 ℃/min.
S3, adding paper pulp subjected to material soaking, material boiling, material washing and material beating into the resin combined material at the temperature of 78 ℃ at a uniform speed, and stirring; after being stirred uniformly, the dispersant and the flame retardant are added, and then stirring is carried out at the stirring speed of 1000 r/min;
and S4, heating to 100 ℃ after uniformly stirring, evaporating water, and finally drying the paper. And the temperature of the paper drying is gradually and progressively increased.
Example 11
This example differs from example 8 only in that: the resin composite material comprises the following components of 48% of resin, 25% of glass fiber, 12% of starch, 8% of cellulose and 7% of plasticizer by weight percentage.
Example 12
This example differs from example 1 only in that: in step S1, the rate of temperature increase is 2 ℃/min.
Example 13
This example differs from example 1 only in that: in step S1, the rate of temperature increase is 5 ℃/min.
Example 14
This example differs from example 1 only in that: in the step S2, the resin composition is vibrated for 0.2h in the temperature environment of 236 ℃; and the speed of the cooling speed is 3 ℃/min.
Example 15
This example differs from example 1 only in that: in the step S2, the resin composition is vibrated for 0.6 hour in the temperature environment of 236 ℃; and the speed of the cooling speed is 7 ℃/min.
Example 16
This example differs from example 1 only in that: the resin composite material comprises the following components of 40% of resin, 20% of glass fiber, 8% of starch, 5% of cellulose and 4% of plasticizer by weight percentage. The resin, the starch, the cellulose and the plasticizer are added and stirred uniformly at the speed of 580 r/min.
And the preparation method of the degradable flame-retardant packaging material comprises the following steps:
s1, stirring the resin composition material in a 26 ℃ temperature environment, and heating at a heating speed of 2 ℃/min;
s2, after the temperature is raised to 236 ℃, controlling the temperature to enable the resin composite material to vibrate for 0.35h in the temperature environment of 236 ℃; and the temperature is reduced to 78 ℃ at the cooling speed of 5 ℃/min;
s3, adding paper pulp subjected to material soaking, material boiling, material washing and material beating into the resin combined material at the temperature of 78 ℃ at a uniform speed, and stirring; after being stirred uniformly, the dispersant and the flame retardant are added, and then stirring is carried out at the stirring speed of 1000 r/min;
and S4, heating to 100 ℃ after uniformly stirring, evaporating water, and finally drying the paper. And the temperature of the paper drying is gradually and progressively increased.
Example 16
This example differs from example 1 only in that: the resin composite material comprises the following components of 50% of resin, 30% of glass fiber, 15% of starch, 12% of cellulose and 10% of plasticizer by weight percentage. The resin, the starch, the cellulose and the plasticizer are added and stirred uniformly at the speed of 580 r/min.
And the preparation method of the degradable flame-retardant packaging material comprises the following steps:
s1, stirring the resin composition material in a 26 ℃ temperature environment, and heating at a heating speed of 5 ℃/min;
s2, after the temperature is raised to 236 ℃, controlling the temperature to enable the resin composite material to vibrate for 0.6h in the temperature environment of 236 ℃; and the temperature is reduced to 78 ℃ at the cooling rate of 7 ℃/min.
S3, adding paper pulp subjected to material soaking, material boiling, material washing and material beating into the resin combined material at the temperature of 78 ℃ at a uniform speed, and stirring; after being stirred uniformly, the dispersant and the flame retardant are added, and then stirring is carried out at the stirring speed of 1000 r/min;
and S4, heating to 100 ℃ after uniformly stirring, evaporating water, and finally drying the paper. And the temperature of the paper drying is gradually and progressively increased.
Comparative example 1
The formula of the degradable flame-retardant packaging material is the same as that of the formula of the degradable flame-retardant packaging material in example 1, and the only difference is that the resin composition material is not added with glass fiber; meanwhile, the same preparation method of the degradable flame-retardant packaging material as that of the embodiment 1 is adopted.
Comparative example 2
The formula of the degradable flame-retardant packaging material is the same as that of the degradable flame-retardant packaging material in the embodiment 1, and the only difference is that no resin composition material is added; meanwhile, the same preparation method of the degradable flame-retardant packaging material as that of the embodiment 1 is adopted.
Comparative example 3
The same formula of the degradable flame-retardant packaging material as in example 1 is adopted, and the only difference is that the resin composition is not added with starch and cellulose and plasticized; meanwhile, the same preparation method of the degradable flame-retardant packaging material as that of the embodiment 1 is adopted.
Comparative example 4
The same formula of degradable flame-retardant packaging material as in example 1 was used, the only difference being that no flame retardancy was added; meanwhile, the same preparation method of the degradable flame-retardant packaging material as that of the embodiment 1 is adopted.
The tensile strength, elongation at break, impact strength and material limiting oxygen index of the products prepared in examples 1, 4 and 8 and comparative examples 1 to 4 were measured after soaking in water according to GB/T1040-1992, GB/T1040.1-2006, GB/T1043-1993 and GB/T2406-1993, and the results are shown in Table 7:
TABLE 7
| Tensile strength/MPa | Elongation at break/% | Impact strength/Mpa | Limiting oxygen index | |
| Example 1 | 52 | 50 | 19 | 29 |
| Example 4 | 43 | 41 | 17 | 28 |
| Example 8 | 53 | 49 | 19 | 29 |
| Comparative example 1 | 39 | 37 | 15 | 29 |
| Comparative example 2 | 33 | 30 | 13 | 29 |
| Comparative example 3 | 52 | 50 | 19 | 29 |
| Comparative example 4 | 52 | 50 | 19 | 20 |
By comparing the performances of the products prepared in the above examples 1, 4 and 8 with those prepared in the comparative examples 1 to 4, it is found that the resin and the glass fiber in the resin composition act on the pulp cooperatively, so that the carton packaging material has a certain tensile strength even under the condition of breakage and water inflow; and starch, cellulose and a plasticizer in the resin composite material further improve the degradability, and the flame retardant is added to improve the flame retardance of the carton packaging material, so that the formula of example 1 can realize the optimal performance effect.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A degradable flame retardant packaging material, comprising:
50-80 parts of resin composite material; the resin composite material comprises the following components of resin, glass fiber, starch, cellulose and plasticizer, and the method for preparing the resin composite material comprises the steps of adding the resin, the starch, the cellulose and the plasticizer, uniformly stirring, adding the glass fiber, and stirring while vibrating;
15-20 parts of a dispersing agent;
25-30 parts of flame retardant;
paper pulp, the weight portion of which is 70-100; wherein the paper pulp is prepared by soaking, boiling, washing and beating.
2. The degradable flame-retardant packaging material of claim 1, wherein the degradable flame-retardant packaging material comprises the following raw materials in parts by weight: 68 parts of resin composite material, 85 parts of paper pulp, 17 parts of dispersing agent and 27 parts of flame retardant; the resin composite material comprises the following components of resin, glass fiber, starch, cellulose and a plasticizer, and the method for preparing the resin composite material comprises the steps of adding the resin, the starch, the cellulose and the plasticizer, uniformly stirring, adding the glass fiber, and stirring while shaking.
3. The degradable flame-retardant packaging material according to claim 1 or 2, wherein the resin composition comprises, by weight, 40-50% of resin, 20-30% of glass fiber, 8-15% of starch, 5-12% of cellulose and 4-10% of plasticizer, and the method for preparing the resin composition comprises adding the resin, the starch, the cellulose and the plasticizer, stirring them uniformly, adding the glass fiber, and stirring while shaking.
4. The degradable flame-retardant packaging material of claim 3, wherein the resin composition comprises 48% by weight of resin, 25% by weight of glass fiber, 12% by weight of starch, 8% by weight of cellulose and 7% by weight of plasticizer, and the resin composition is prepared by adding the resin, the starch, the cellulose and the plasticizer, stirring them uniformly, adding the glass fiber, and stirring while shaking.
5. The degradable flame-retardant packaging material of claim 4, wherein the resin, the starch, the cellulose and the plasticizer are added and uniformly stirred at a speed of 580 r/min.
6. A method for preparing the degradable flame-retardant packaging material according to any one of claims 1 to 5, characterized by comprising the following steps:
s1, stirring the resin composition material in a 26 ℃ temperature environment, and heating at a heating speed of 2-5 ℃/min;
s2, after the temperature is raised to 236 ℃, controlling the temperature to enable the resin composite material to vibrate for 0.2-0.6h in the temperature environment of 236 ℃; and cooling to 78 deg.C at a rate of 3-7 deg.C/min;
s3, adding paper pulp subjected to material soaking, material boiling, material washing and material beating into the resin combined material at the temperature of 78 ℃ at a uniform speed, and stirring; after being stirred uniformly, the dispersant and the flame retardant are added, and then stirring is carried out at the stirring speed of 1000 r/min;
and S4, heating to 100 ℃ after uniformly stirring, evaporating water, and finally drying the paper.
7. The method of claim 6, wherein in the step S1, the resin composition is placed in a temperature environment of 26 ℃ and stirred at a speed of 200 r/min.
8. The method for preparing a degradable flame retardant packaging material according to claim 6, wherein in the step S1, the temperature rising speed is 3 ℃/min.
9. The method for preparing a degradable flame retardant packaging material according to claim 6, wherein in the step S2, the resin composition is vibrated at a temperature of 236 ℃ for 0.35 h; and the speed of the cooling speed is 5 ℃/min.
10. The method for preparing a degradable flame retardant packaging material of claim 6, wherein in step S4, the temperature of the baking paper is gradually increased.
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