CN110540695A - degradable environment-friendly bag and preparation method thereof - Google Patents
degradable environment-friendly bag and preparation method thereof Download PDFInfo
- Publication number
- CN110540695A CN110540695A CN201910837135.6A CN201910837135A CN110540695A CN 110540695 A CN110540695 A CN 110540695A CN 201910837135 A CN201910837135 A CN 201910837135A CN 110540695 A CN110540695 A CN 110540695A
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- Prior art keywords
- density polyethylene
- degradable
- calcium carbonate
- polyethylene
- degradation additive
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
- C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/06—Biodegradable
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
Abstract
the invention provides a degradable environment-friendly bag and a preparation method thereof, wherein the degradable environment-friendly bag comprises the following components in percentage by mass: 30-60% of calcium carbonate, 39-48% of polyethylene, 0.5-1% of degradation additive and 0.5-1% of color seeds. The invention also provides a method for preparing the degradable environment-friendly bag, and in the preparation process, the degradable environment-friendly material is obtained under the condition of completely not using propylene resin by adjusting the specific components of the added polyethylene, and the degradation rate is obviously improved by adding the degradation additive into the environment-friendly material.
Description
Technical Field
The invention relates to the technical field of degradable environment-friendly bags, in particular to a degradable environment-friendly bag and a preparation method thereof.
Background
the degradable plastic bag is a disposable shopping bag which is degradable and easy to degrade. The light degradable plastic bag is mainly made of polyethylene plastic and mineral powder such as light degradation agent, calcium carbonate and the like, and is also called as a light degradable plastic bag.
in the prior art, for example, publication numbers are: "CN 108570174A" discloses a green environment-friendly bag and a processing technology thereof, and the green environment-friendly bag comprises the following raw materials by mass percent: 20-30% of polyethylene, 10-20% of propylene resin, 10-15% of linear polyethylene, 10-13% of short-chain cellulose, 50-65% of calcium carbonate powder, 1-3% of inorganic powder, 1-3% of high-filling powder, 1-3% of setting agent and 1-5% of softening agent, wherein the calcium carbonate powder consists of 65% of calcium carbonate particles, 15% of tough particles, 2% of defoaming agent and 3% of filling particles.
the material comprises the propylene resin which is a thermoplastic or thermosetting resin coating, and in the preparation of the recycle bags, the propylene resin has good physical and mechanical properties, excellent weather resistance, chemical resistance and water resistance and high gloss and color retention, and is mainly used for preparing green recycle bags, but the propylene resin has certain harmfulness.
disclosure of Invention
in view of the above, the present invention provides a degradable reusable bag and a method for manufacturing the same.
The invention adopts the following technical scheme:
the degradable environment-friendly bag comprises the following components in percentage by mass:
30 to 60 percent of calcium carbonate,
39-48% of polyethylene,
0.5 to 1% of a degradation additive,
0.5-1% of color seeds.
Preferably, the composition comprises the following components in percentage by mass:
30 to 50% of calcium carbonate,
45-48% of polyethylene,
0.5 to 1% of a degradation additive,
0.5-1% of color seeds.
Preferably, the composition comprises the following components in percentage by mass:
50 percent of calcium carbonate,
48% of polyethylene, and (C) a polyethylene,
1 percent of a degradation additive, namely,
1% of color seeds.
preferably, the polyethylene comprises the following components in percentage by mass:
60 to 70% of linear low density polyethylene,
30-40% of high density polyethylene.
preferably, the degradation additive comprises the following components in percentage by mass:
20-50% of furanone
20-30% of valeric acid
5-10% of catalyst
20-50% acetic acid.
Preferably, the catalyst is polycaprolactone.
Preferably, the acetic acid is glycolic acid.
Preferably, the color species is a colorant.
The invention also provides a preparation method of the degradable environment-friendly bag, which comprises the following steps:
1) weighing calcium carbonate, linear low density polyethylene, high density polyethylene, degradation additive and colorant for later use,
2) Adding the calcium carbonate, the linear low-density polyethylene, the high-density polyethylene, the degradation additive and the colorant in the step 1) into a stirrer, stirring for 10min,
3) placing the mixed raw materials into a co-extrusion film blowing machine, heating to 150 ℃ and 170 ℃, and blowing the material film by using the film blowing machine at the constant temperature of 150 ℃ after 20 min;
4) after the step 3) is finished, cooling and edge pressing are carried out on the blown-out material film;
5) and after the step 4) is finished, adding the material film into a bag making machine according to the size of the recycle bags to make the recycle bags.
has the advantages that:
in the preparation process, the degradable environment-friendly material is obtained under the condition of completely not using propylene resin by adjusting the specific components of the added polyethylene, and the degradation additive is added into the environment-friendly material, so that the degradation rate is obviously improved.
Detailed Description
in order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Example 1
A preparation method of a degradable environment-friendly bag comprises the following steps:
1) weighing calcium carbonate, linear low density polyethylene, high density polyethylene, degradation additive and colorant for later use,
2) Adding the calcium carbonate, the linear low-density polyethylene, the high-density polyethylene, the degradation additive and the colorant in the step 1) into a stirrer, stirring for 10min,
3) Placing the mixed raw materials into a co-extrusion film blowing machine, heating to 150 ℃ and 170 ℃, and blowing the material film by using the film blowing machine at the constant temperature of 150 ℃ after 20 min;
4) after the step 3) is finished, cooling and edge pressing are carried out on the blown-out material film;
5) And after the step 4) is finished, adding the material film into a bag making machine according to the size of the recycle bags to make the recycle bags.
among the above, calcium carbonate 50%, 33% linear low density polyethylene, 15% high density polyethylene, 1% degradation additive, 1% colorant.
example 2
A preparation method of a degradable environment-friendly bag comprises the following steps:
1) Weighing calcium carbonate, linear low density polyethylene, high density polyethylene, degradation additive and colorant for later use,
2) adding the calcium carbonate, the linear low-density polyethylene, the high-density polyethylene, the degradation additive and the colorant in the step 1) into a stirrer, stirring for 10min,
3) placing the mixed raw materials into a co-extrusion film blowing machine, heating to 150 ℃ and 170 ℃, and blowing the material film by using the film blowing machine at the constant temperature of 150 ℃ after 20 min;
4) after the step 3) is finished, cooling and edge pressing are carried out on the blown-out material film;
5) and after the step 4) is finished, adding the material film into a bag making machine according to the size of the recycle bags to make the recycle bags.
Among the above, calcium carbonate 60%, linear low density polyethylene 23%, high density polyethylene 15%, degradation additive 1%, coloring agent 1%.
example 3
a preparation method of a degradable environment-friendly bag comprises the following steps:
1) Weighing calcium carbonate, linear low density polyethylene, high density polyethylene, degradation additive and colorant for later use,
2) adding the calcium carbonate, the linear low-density polyethylene, the high-density polyethylene, the degradation additive and the colorant in the step 1) into a stirrer, stirring for 10min,
3) Placing the mixed raw materials into a co-extrusion film blowing machine, heating to 150 ℃ and 170 ℃, and blowing the material film by using the film blowing machine at the constant temperature of 150 ℃ after 20 min;
4) after the step 3) is finished, cooling and edge pressing are carried out on the blown-out material film;
5) and after the step 4) is finished, adding the material film into a bag making machine according to the size of the recycle bags to make the recycle bags.
among the above, calcium carbonate 45%, linear low density polyethylene 28%, high density polyethylene 15%, degradation additive 1%, coloring agent 1%.
example 4
a preparation method of a degradable environment-friendly bag comprises the following steps:
1) Weighing calcium carbonate, linear low density polyethylene, high density polyethylene, degradation additive and colorant for later use,
2) Adding the calcium carbonate, the linear low-density polyethylene, the high-density polyethylene, the degradation additive and the colorant in the step 1) into a stirrer, stirring for 10min,
3) Placing the mixed raw materials into a co-extrusion film blowing machine, heating to 150 ℃ and 170 ℃, and blowing the material film by using the film blowing machine at the constant temperature of 150 ℃ after 20 min;
4) After the step 3) is finished, cooling and edge pressing are carried out on the blown-out material film;
5) And after the step 4) is finished, adding the material film into a bag making machine according to the size of the recycle bags to make the recycle bags.
among the above, calcium carbonate 45%, 38% linear low density polyethylene, 10% high density polyethylene, 1% degradation additive, 1% colorant.
example 5
a preparation method of a degradable environment-friendly bag comprises the following steps:
1) weighing calcium carbonate, linear low density polyethylene, high density polyethylene, degradation additive and colorant for later use,
2) adding the calcium carbonate, the linear low-density polyethylene, the high-density polyethylene, the degradation additive and the colorant in the step 1) into a stirrer, stirring for 10min,
3) Placing the mixed raw materials into a co-extrusion film blowing machine, heating to 150 ℃ and 170 ℃, and blowing the material film by using the film blowing machine at the constant temperature of 150 ℃ after 20 min;
4) after the step 3) is finished, cooling and edge pressing are carried out on the blown-out material film;
5) and after the step 4) is finished, adding the material film into a bag making machine according to the size of the recycle bags to make the recycle bags.
Of the above, 55% calcium carbonate, 33% linear low density polyethylene, 10% high density polyethylene, 1% degradation additive, 1% colorant.
example 6
a preparation method of a degradable environment-friendly bag comprises the following steps:
1) weighing calcium carbonate, linear low density polyethylene, high density polyethylene, degradation additive and colorant for later use,
2) adding the calcium carbonate, the linear low-density polyethylene, the high-density polyethylene, the degradation additive and the colorant in the step 1) into a stirrer, stirring for 10min,
3) placing the mixed raw materials into a co-extrusion film blowing machine, heating to 150 ℃ and 170 ℃, and blowing the material film by using the film blowing machine at the constant temperature of 150 ℃ after 20 min;
4) after the step 3) is finished, cooling and edge pressing are carried out on the blown-out material film;
5) and after the step 4) is finished, adding the material film into a bag making machine according to the size of the recycle bags to make the recycle bags.
of the above, 55% calcium carbonate, 28% linear low density polyethylene, 20% high density polyethylene, 1% degradation additive, 1% colorant.
Example 7
a preparation method of a degradable environment-friendly bag comprises the following steps:
1) weighing calcium carbonate, linear low density polyethylene, high density polyethylene, degradation additive and colorant for later use,
2) adding the calcium carbonate, the linear low-density polyethylene, the high-density polyethylene, the degradation additive and the colorant in the step 1) into a stirrer, stirring for 10min,
3) Placing the mixed raw materials into a co-extrusion film blowing machine, heating to 150 ℃ and 170 ℃, and blowing the material film by using the film blowing machine at the constant temperature of 150 ℃ after 20 min;
4) after the step 3) is finished, cooling and edge pressing are carried out on the blown-out material film;
5) And after the step 4) is finished, adding the material film into a bag making machine according to the size of the recycle bags to make the recycle bags.
of the above, 55% calcium carbonate, 24% linear low density polyethylene, 20% high density polyethylene, 0.5% degradation additive, 0.5% colorant.
example 8
a preparation method of a degradable environment-friendly bag comprises the following steps:
1) weighing calcium carbonate, linear low density polyethylene, high density polyethylene, degradation additive and colorant for later use,
2) Adding the calcium carbonate, the linear low-density polyethylene, the high-density polyethylene, the degradation additive and the colorant in the step 1) into a stirrer, stirring for 10min,
3) Placing the mixed raw materials into a co-extrusion film blowing machine, heating to 150 ℃ and 170 ℃, and blowing the material film by using the film blowing machine at the constant temperature of 150 ℃ after 20 min;
4) after the step 3) is finished, cooling and edge pressing are carried out on the blown-out material film;
5) And after the step 4) is finished, adding the material film into a bag making machine according to the size of the recycle bags to make the recycle bags.
of the above, calcium carbonate 45%, 29% linear low density polyethylene, 20% high density polyethylene, 0.5% degradation additive, 0.5% colorant.
example 9
A preparation method of a degradable environment-friendly bag comprises the following steps:
1) Weighing calcium carbonate, linear low density polyethylene, high density polyethylene, degradation additive and colorant for later use,
2) adding the calcium carbonate, the linear low-density polyethylene, the high-density polyethylene, the degradation additive and the colorant in the step 1) into a stirrer, stirring for 10min,
3) Placing the mixed raw materials into a co-extrusion film blowing machine, heating to 150 ℃ and 170 ℃, and blowing the material film by using the film blowing machine at the constant temperature of 150 ℃ after 20 min;
4) After the step 3) is finished, cooling and edge pressing are carried out on the blown-out material film;
5) and after the step 4) is finished, adding the material film into a bag making machine according to the size of the recycle bags to make the recycle bags.
of the above, calcium carbonate 50%, 34% linear low density polyethylene, 15% high density polyethylene, 0.5% degradation additive, 0.5% colorant.
example 10
A preparation method of a degradable environment-friendly bag comprises the following steps:
1) weighing calcium carbonate, linear low density polyethylene, high density polyethylene, degradation additive and colorant for later use,
2) adding the calcium carbonate, the linear low-density polyethylene, the high-density polyethylene, the degradation additive and the colorant in the step 1) into a stirrer, stirring for 10min,
3) Placing the mixed raw materials into a co-extrusion film blowing machine, heating to 150 ℃ and 170 ℃, and blowing the material film by using the film blowing machine at the constant temperature of 150 ℃ after 20 min;
4) After the step 3) is finished, cooling and edge pressing are carried out on the blown-out material film;
5) And after the step 4) is finished, adding the material film into a bag making machine according to the size of the recycle bags to make the recycle bags.
Of the above, 55% calcium carbonate, 29% linear low density polyethylene, 15% high density polyethylene, 0.5% degradation additive, 0.5% colorant.
In the preparation process, the degradable environment-friendly material is obtained under the condition of completely not using propylene resin by adjusting the specific components of the added polyethylene, and the degradation additive is added into the environment-friendly material, so that the degradation rate is obviously improved.
while there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics 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.
The invention provides a degradable environment-friendly bag and a preparation method thereof, wherein the degradable environment-friendly bag comprises the following components in percentage by mass: 30-60% of calcium carbonate, 39-48% of polyethylene, 0.5-1% of degradation additive and 0.5-1% of color seeds. The invention also provides a method for preparing the degradable environment-friendly bag, and in the preparation process, the degradable environment-friendly material is obtained under the condition of completely not using propylene resin by adjusting the specific components of the added polyethylene, and the degradation rate is obviously improved by adding the degradation additive into the environment-friendly material.
Claims (9)
1. The degradable environment-friendly bag is characterized by comprising the following components in percentage by mass:
30 to 60 percent of calcium carbonate,
39-48% of polyethylene,
0.5 to 1% of a degradation additive,
0.5-1% of color seeds.
2. The degradable reusable bag according to claim 1, comprising the following components in percentage by mass:
30 to 50% of calcium carbonate,
45-48% of polyethylene,
0.5 to 1% of a degradation additive,
0.5-1% of color seeds.
3. the degradable reusable bag according to claim 1, comprising the following components in percentage by mass:
50 percent of calcium carbonate,
48% of polyethylene, and (C) a polyethylene,
1 percent of a degradation additive, namely,
1% of color seeds.
4. The degradable reusable bag according to claim 1, 2 or 3, wherein the polyethylene comprises the following components in percentage by mass:
60 to 70% of linear low density polyethylene,
30-40% of high density polyethylene.
5. the degradable reusable bag according to claim 1, 2 or 3, wherein the degradation additive comprises the following components in percentage by mass:
20-50% of furanone
20-30% of valeric acid
5-10% of catalyst
20-50% acetic acid.
6. the degradable reusable bag according to claim 5, wherein the catalyst is polycaprolactone.
7. The degradable reusable bag according to claim 5, wherein said acetic acid is glycolic acid.
8. The degradable reusable bag according to claim 1, 2 or 3, wherein said color species is a colorant.
9. the preparation method of the degradable environment-friendly bag is characterized by comprising the following steps:
1) weighing calcium carbonate, linear low density polyethylene, high density polyethylene, degradation additive and colorant for later use,
2) adding the calcium carbonate, the linear low-density polyethylene, the high-density polyethylene, the degradation additive and the colorant in the step 1) into a stirrer, stirring for 10min,
3) Placing the mixed raw materials into a co-extrusion film blowing machine, heating to 150 ℃ and 170 ℃, and blowing the material film by using the film blowing machine at the constant temperature of 150 ℃ after 20 min;
4) after the step 3) is finished, cooling and edge pressing are carried out on the blown-out material film;
5) And after the step 4) is finished, adding the material film into a bag making machine according to the size of the recycle bags to make the recycle bags.
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| CN201910837135.6A CN110540695A (en) | 2019-09-05 | 2019-09-05 | degradable environment-friendly bag and preparation method thereof |
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| CN201910837135.6A CN110540695A (en) | 2019-09-05 | 2019-09-05 | degradable environment-friendly bag and preparation method thereof |
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| KR100769060B1 (en) * | 2006-06-15 | 2007-10-22 | 주식회사 이테크 | Absorbent and biodegradable psp sheet, method for producing thereof and tray using thereof |
| EP2479266A1 (en) * | 2006-12-21 | 2012-07-25 | Verenium Corporation | Amylases and glucoamylases, nucleic acids encoding them and methods for making and using them |
| CN105218925A (en) * | 2015-10-27 | 2016-01-06 | 广州石之通高分子材料有限公司 | A kind of stone of controlled degradation moulds Environmental protection bag and preparation technology thereof |
| CN106700202A (en) * | 2016-12-08 | 2017-05-24 | 广州石头造环保科技股份有限公司 | Environment-friendly degradable incineratable chemical fertilizer packaging bag material |
-
2019
- 2019-09-05 CN CN201910837135.6A patent/CN110540695A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100769060B1 (en) * | 2006-06-15 | 2007-10-22 | 주식회사 이테크 | Absorbent and biodegradable psp sheet, method for producing thereof and tray using thereof |
| EP2479266A1 (en) * | 2006-12-21 | 2012-07-25 | Verenium Corporation | Amylases and glucoamylases, nucleic acids encoding them and methods for making and using them |
| CN105218925A (en) * | 2015-10-27 | 2016-01-06 | 广州石之通高分子材料有限公司 | A kind of stone of controlled degradation moulds Environmental protection bag and preparation technology thereof |
| CN106700202A (en) * | 2016-12-08 | 2017-05-24 | 广州石头造环保科技股份有限公司 | Environment-friendly degradable incineratable chemical fertilizer packaging bag material |
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