CN112812398A - Green environment-friendly foam material based on renewable resources and manufacturing method thereof - Google Patents
Green environment-friendly foam material based on renewable resources and manufacturing method thereof Download PDFInfo
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- 239000006261 foam material Substances 0.000 title claims abstract description 37
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 238000005187 foaming Methods 0.000 claims abstract description 19
- 229920006025 bioresin Polymers 0.000 claims abstract description 17
- 238000004132 cross linking Methods 0.000 claims abstract description 12
- 239000004088 foaming agent Substances 0.000 claims abstract description 12
- 238000002156 mixing Methods 0.000 claims abstract description 11
- 230000007613 environmental effect Effects 0.000 claims abstract description 8
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 8
- 239000000088 plastic resin Substances 0.000 claims abstract description 8
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 8
- -1 polyethylene Polymers 0.000 claims abstract description 8
- 239000004698 Polyethylene Substances 0.000 claims abstract description 5
- 229920000573 polyethylene Polymers 0.000 claims abstract description 5
- 239000004743 Polypropylene Substances 0.000 claims abstract description 4
- 229920001155 polypropylene Polymers 0.000 claims abstract description 3
- 229920002725 thermoplastic elastomer Polymers 0.000 claims abstract description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 45
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 42
- 239000002028 Biomass Substances 0.000 claims description 26
- 229920001684 low density polyethylene Polymers 0.000 claims description 13
- 239000004702 low-density polyethylene Substances 0.000 claims description 13
- 239000002994 raw material Substances 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 9
- 239000011347 resin Substances 0.000 claims description 9
- 239000003054 catalyst Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 229920000881 Modified starch Polymers 0.000 claims description 4
- 239000004368 Modified starch Substances 0.000 claims description 4
- 229920008262 Thermoplastic starch Polymers 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 4
- 235000019426 modified starch Nutrition 0.000 claims description 4
- 239000004628 starch-based polymer Substances 0.000 claims description 4
- 238000005469 granulation Methods 0.000 claims description 3
- 230000003179 granulation Effects 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 2
- 239000000806 elastomer Substances 0.000 claims description 2
- 229920001903 high density polyethylene Polymers 0.000 claims description 2
- 239000004700 high-density polyethylene Substances 0.000 claims description 2
- 239000000155 melt Substances 0.000 claims description 2
- 238000000748 compression moulding Methods 0.000 claims 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 12
- 239000003208 petroleum Substances 0.000 abstract description 10
- 229920000098 polyolefin Polymers 0.000 abstract description 7
- 239000001569 carbon dioxide Substances 0.000 abstract description 6
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 6
- 239000005431 greenhouse gas Substances 0.000 abstract description 6
- 238000010792 warming Methods 0.000 abstract description 4
- 230000003139 buffering effect Effects 0.000 abstract description 2
- 230000036541 health Effects 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 11
- 239000000463 material Substances 0.000 description 9
- 229920000092 linear low density polyethylene Polymers 0.000 description 8
- 239000004707 linear low-density polyethylene Substances 0.000 description 8
- 229920000704 biodegradable plastic Polymers 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920000747 poly(lactic acid) Polymers 0.000 description 3
- 239000004626 polylactic acid Substances 0.000 description 3
- 239000004604 Blowing Agent Substances 0.000 description 2
- 244000061456 Solanum tuberosum Species 0.000 description 2
- 235000002595 Solanum tuberosum Nutrition 0.000 description 2
- 240000008042 Zea mays Species 0.000 description 2
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 2
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 2
- 235000005822 corn Nutrition 0.000 description 2
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 241000219310 Beta vulgaris subsp. vulgaris Species 0.000 description 1
- 229920002527 Glycogen Polymers 0.000 description 1
- 240000003183 Manihot esculenta Species 0.000 description 1
- 235000016735 Manihot esculenta subsp esculenta Nutrition 0.000 description 1
- 239000004594 Masterbatch (MB) Substances 0.000 description 1
- 235000021536 Sugar beet Nutrition 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 239000012620 biological material Substances 0.000 description 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229940096919 glycogen Drugs 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000005014 poly(hydroxyalkanoate) Substances 0.000 description 1
- 229920000903 polyhydroxyalkanoate Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/102—Azo-compounds
- C08J9/103—Azodicarbonamide
-
- 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
-
- 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
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
-
- 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
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—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
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
-
- 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
- C08J2403/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
- C08J2403/04—Starch derivatives
-
- 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
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/06—Polyethene
-
- 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
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/08—Copolymers of ethene
-
- 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
- C08J2423/12—Polypropene
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The invention discloses a green environmental protection type foam material based on renewable resources and a manufacturing method thereof, which is formed by at least blending, crosslinking and foaming bio-based resin and fossil energy-based plastic resin through a foaming agent, wherein the fossil energy-based plastic resin is any one or more of polyethylene, polypropylene, thermoplastic elastomer and ethylene-vinyl acetate copolymer; the green environment-friendly polyolefin foam material based on renewable resources belongs to environment-friendly type, and compared with the common petroleum-based polyolefin foam material on the market at present, the green environment-friendly polyolefin foam material can greatly reduce the emission of greenhouse gas carbon dioxide and relieve the environmental problems of global warming and the like; it has wide prospect in the fields of medical treatment and health, human body protection, package buffering, automotive interior and electronic sealing.
Description
Technical Field
The invention relates to the field of green environment-friendly polyolefin foam materials, in particular to a green environment-friendly foam material based on renewable resources and a manufacturing method thereof.
Background
As an important material basis for human survival and development, fossil raw materials support the progress of human civilization and the development of economic society. However, the non-renewable nature of fossil energy and the enormous human consumption thereof are making fossil energy gradually going to exhaustion.
The utilization of fossil energy is also a key factor causing environmental changes and pollution. The large amount of fossil energy consumption causes the emission of greenhouse gases, increases the concentration of the greenhouse gases in the atmosphere, enhances the greenhouse effect and causes global warming. With the gradual reduction of fossil energy reserves, the global energy crisis is also increasingly approaching. The energy structure mainly based on fossil energy has obvious unsustainability.
The currently developed bioplastics on the market mainly comprise three types, namely PHA, polylactic acid and thermoplastic starch-based polymers. The raw material of the thermoplastic starch-based polymer is derived from biological crops such as corn, potato, wheat and cassava, is low in cost and renewable, can be subjected to compost biodegradation, but is poor in water resistance and transparency and difficult to use in complex environmental conditions; PLA is prepared by extracting lactic acid produced by glycogen fermentation from crops such as sugar beet, corn and potato, and can be processed in various ways, but PLA is poor in toughness, barrier property, melt strength and crystallization speed.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a green environment-friendly foam material based on renewable resources and a manufacturing method thereof. Its advantages include the following:
(1) low-carbon emission: the biomass material can absorb a large amount of carbon dioxide gas in the growth process, so that the biomass material has a carbon neutralization effect; therefore, the carbon dioxide emission of the bioplastic is only 20% of that of petrochemical plastic, and the bioplastic is also called low-carbon plastic, so that the emission of greenhouse gas carbon dioxide can be reduced by using the low-carbon plastic, and the temperature rise speed of the earth can be favorably reduced.
(2) And (3) cyclic regeneration: the biomass naturally grows year after year and is inexhaustible, and is the only abundant resource on the earth which is not well utilized at present
In order to achieve the purpose, the invention designs a green environment-friendly foam material based on renewable resources, which is prepared by at least blending, crosslinking and foaming a bio-based resin and a fossil energy-based plastic resin through a foaming agent, wherein the fossil energy-based plastic resin is any one or more of polyethylene, polypropylene, a thermoplastic elastomer and an ethylene-vinyl acetate copolymer;
the content of the resin in the bio-based resin is more than or equal to 30 percent of that of the green environment-friendly foam material; in the bio-based resin, the content of the biomass derived carbon is 60 to 100 percent of the total amount of the organic carbon;
the biomass-derived carbon content in the foam is 30% to 100% of the total organic carbon (biomass-derived carbon content determined based on ASTM D6866 method).
Furthermore, the content of the resin in the bio-based resin is more than or equal to 70 percent of that of the green environment-friendly foam material;
in the bio-based resin, the content of the biomass derived carbon is 70-100% of the total amount of the organic carbon;
in the foam material, the content of biomass-derived carbon is 60-100% of the total amount of organic carbon.
Still further, the bio-based resin is any one or more of low-density polyethylene, low-density linear polyethylene, high-density polyethylene, elastomer POE, ethylene-vinyl acetate copolymer and modified thermoplastic starch.
Still further, the melt index of the bio-based resin is 0.2-10 g/10min, and the density is 0.89-0.96 g/cm3。
Still further, the blowing agent is an AC blowing agent
Still further, the raw materials of the green environment-friendly foam material also comprise modified starch and a catalyst.
The invention also provides a method for manufacturing the green and environment-friendly foam material based on renewable resources, the green and environment-friendly foam material is formed by blending, molding, crosslinking and foaming of bio-based resin and fossil energy-based plastic resin, the crosslinking mode is electron irradiation crosslinking, and the gel content of the foam material is 25-70 wt%.
Preferably, the blending mode is banburying granulation (aiming at blending and dispersing the materials uniformly), and the forming mode is extrusion forming or compression forming; the foaming mode is free foaming or other modes.
The invention has the beneficial effects that:
the environment-friendly polyolefin foaming material based on renewable resources provided by the invention belongs to environment-friendly type, accords with international sustainable development and European Union RED carbon certification (ISCC EU) and European Union RED sustainable biological material round-table conference certification, and can greatly reduce the emission of greenhouse gas carbon dioxide and relieve the environmental problems of global warming and the like compared with the common petroleum-based polyolefin foaming material on the market at present. It has wide prospect in the fields of medical treatment and health, human body protection, package buffering, automotive interior and electronic sealing.
Detailed Description
The present invention is described in further detail below with reference to specific examples so as to be understood by those skilled in the art.
Example 1
The preparation method of the green environment-friendly foam material 1 based on renewable resources comprises the following steps:
(1) the materials are prepared according to the following proportion:
5 parts of modified starch, wherein the content of biomass-derived carbon in the bio-based LDPE and the bio-based LLDPE accounts for 70% of the total organic carbon content, and the contents of the bio-based LDPE, the bio-based LLDPE and the bio-based LLDPE account for 65 parts of the bio-based LDPE, 15 parts of the bio-based LLDPE, 15 parts of petroleum-based POE and 6 parts of AC foaming agent.
(2) And (2) mixing the materials in the step (1) by using an internal mixer, wherein the internal mixing temperature is 120-140 ℃, and the internal mixing time is 5-25 minutes. And adding the mixture into a single-screw extruder for extrusion granulation after banburying.
(3) And (3) putting the master batch in the step (2) into a double-screw extruder to be extruded and formed into a sheet, preferably carrying out irradiation crosslinking on the formed sheet by using an electron accelerator, and controlling the gel content of the sheet after irradiation crosslinking to be between 40 and 55 percent.
(4) And (4) adding the sheet subjected to irradiation crosslinking in the step (3) into a vertical foaming furnace for continuous foaming and rolling to obtain the foamed sheet based on renewable resources.
The green environmental protection type foam material prepared by the embodiment has the density of 1 kg/m3. The proportion of the biomass-derived carbon content in the total organic carbon content is up to 77%.
Example 2
The raw materials are prepared according to the proportion of 30 parts of bio-based LDPE, 50 parts of petroleum-based LDPE resin, 10 parts of petroleum-based LLDPE resin, 5 parts of ethylene-vinyl acetate and 4 parts of AC foaming agent, wherein the content of biomass derived carbon in the bio-based LDPE accounts for 60% of the total organic carbon content, and the rest steps are consistent with those in the example 1, so that the foaming sheet 2 based on renewable resources can be obtained.
The prepared foaming sheet material 2 based on renewable resources has the density of 130kg/m3The biomass-derived carbon content of the biomass-derived carbon-based biomass fuel accounts for 30% of the total organic carbon content.
Example 3
The raw materials are prepared according to the proportion of 10 parts of modified starch, 80 parts of bio-based LDPE, 5 parts of petroleum-based PP, 8 parts of AC foaming agent and 0.1 part of catalyst, the content of biomass derived carbon in the bio-based LDPE accounts for 100% of the total organic carbon content, and the rest steps are consistent with those in the embodiment 1, so that the foamed sheet 3 based on renewable resources can be obtained. The density of the prepared foaming sheet based on renewable resources is 66kg/m3The proportion of the biomass-derived carbon content in the total organic carbon content is up to 95%.
Comparative example 1
The raw materials are prepared according to the proportion of 5 parts of talcum powder, 80 parts of petroleum-based LDPE resin, 15 parts of LLDPE resin, 7.5 parts of AC foaming agent and 0.1 part of catalyst, and the rest steps are consistent with those in the example 1, so that the common foaming sheet based on non-renewable resources can be obtained. Made based on non-renewable resourcesThe foamed sheet of (2) has a density of 100kg/m3The ratio of the biomass-derived carbon content to the total organic carbon content was 0.
Comparative example 2
The raw materials are prepared according to the proportion of 80 parts of petroleum-based LDPE resin, 10 parts of bio-based LLDPE, 5 parts of bio-based ethylene-vinyl acetate copolymer, 4 parts of AC foaming agent and 0.1 part of catalyst, the content of biomass derived carbon in the bio-based LLDPE and the bio-based ethylene-vinyl acetate copolymer accounts for 70 percent of the total organic carbon content, and the rest steps are consistent with those in the embodiment 1, so that the foamed sheet can be obtained. The foamed sheet had a density of 133kg/m3The proportion of biomass-derived carbon content to the total organic carbon content is 13%.
Comparative example 3
The raw materials are prepared according to the proportion of 10 parts of talcum powder, 80 parts of petroleum-based LDPE, 8 parts of AC foaming agent and 0.1 part of catalyst, and the rest steps are consistent with those in the embodiment 1, so that the foaming sheet based on renewable resources can be obtained. The density of the prepared foaming sheet based on renewable resources is 66kg/m3The proportion of the biomass-derived carbon content to the total organic carbon content of the biomass-derived carbon material is up to 0.
TABLE 1
Note: the content of the biomass derived carbon is the proportion of the total organic carbon in the foam material;
"MD" refers to the Machine Direction (Machine Direction), which refers to the Direction that is aligned with the Direction of extrusion of the foam;
"TD" refers to the Transverse Direction (Transverse Direction), which refers to the Direction perpendicular to the MD and parallel to the foam.
The thermal conductivity is measured according to GB/T10294 at 23 ℃.
The results show that the invention can provide a green environment-friendly foam material based on renewable resources, and compared with the common petroleum-based polyolefin foam material on the market at present, the invention can greatly reduce the emission of greenhouse gas carbon dioxide and alleviate the environmental problems of global warming and the like.
Other parts not described in detail are prior art. Although the present invention has been described in detail with reference to the above embodiments, it is only a part of the embodiments of the present invention, not all of the embodiments, and other embodiments can be obtained without inventive step according to the embodiments, and the embodiments are within the scope of the present invention.
Claims (8)
1. A green environmental protection type foam material based on renewable resources is characterized in that: the foaming agent is formed by at least blending, crosslinking and foaming bio-based resin and fossil energy-based plastic resin through a foaming agent, wherein the fossil energy-based plastic resin is any one or more of polyethylene, polypropylene, thermoplastic elastomer and ethylene-vinyl acetate copolymer;
in the bio-based resin, the content of the resin is more than or equal to 30 percent of that of the green environment-friendly foam material; and the content of the biomass derived carbon in the bio-based resin is 60 to 100 percent of the total amount of the organic carbon;
in the foam material, the content of biomass-derived carbon is 30-100% of the total amount of organic carbon.
2. The green and environment-friendly foam material based on renewable resources according to claim 1, wherein: the content of the resin in the bio-based resin is more than or equal to 70 percent of that of the green environment-friendly foam material; the content of biomass derived carbon in the bio-based resin is 70-100% of the total amount of organic carbon;
in the foam material, the content of biomass-derived carbon is 60-100% of the total amount of organic carbon.
3. The green and environment-friendly foam material based on renewable resources according to claim 1, wherein: the bio-based resin is any one or more of low-density polyethylene, low-density linear polyethylene, high-density polyethylene, elastomer POE, ethylene-vinyl acetate copolymer and modified thermoplastic starch.
4. The green and environment-friendly foam material based on renewable resources according to claim 1, wherein: the melt index of the bio-based resin is 0.2-10 g/10min, and the density is 0.89-0.96 g/cm3。
5. The green and environment-friendly foam material based on renewable resources according to claim 1, wherein: the foaming agent is an AC foaming agent.
6. The green and environment-friendly foam material based on renewable resources according to claim 1, wherein: the raw materials of the green environment-friendly foam material also comprise modified starch and a catalyst.
7. A method for manufacturing the green and environment-friendly foam material based on renewable resources according to claim 1, which is characterized in that: the green environment-friendly foam material is prepared by blending, molding, crosslinking and foaming bio-based resin and fossil energy-based plastic resin, the crosslinking mode is electron irradiation crosslinking, and the gel content in the foam material is 25-70%.
8. The method for manufacturing green and environment-friendly foam material based on renewable resources according to claim 7, wherein: the blending mode is banburying granulation, and the molding mode is extrusion molding or compression molding; the foaming mode is free foaming or other modes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011617346.8A CN112812398A (en) | 2020-12-31 | 2020-12-31 | Green environment-friendly foam material based on renewable resources and manufacturing method thereof |
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| CN202011617346.8A CN112812398A (en) | 2020-12-31 | 2020-12-31 | Green environment-friendly foam material based on renewable resources and manufacturing method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1491271A (en) * | 2001-10-25 | 2004-04-21 | ������������ʽ���� | Exothermic composition and exothermic article using composition, and method for producing exothermic article |
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