CN115651373A - Degradable material with heat-resistant and ageing-resistant properties - Google Patents
Degradable material with heat-resistant and ageing-resistant properties Download PDFInfo
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- 239000000463 material Substances 0.000 title claims abstract description 84
- 230000032683 aging Effects 0.000 title claims abstract description 44
- 239000011347 resin Substances 0.000 claims abstract description 60
- 229920005989 resin Polymers 0.000 claims abstract description 60
- 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 claims abstract description 17
- 239000002131 composite material Substances 0.000 claims abstract description 10
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 8
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 6
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 6
- 239000002250 absorbent Substances 0.000 claims abstract description 5
- 230000002745 absorbent Effects 0.000 claims abstract description 5
- 230000003712 anti-aging effect Effects 0.000 claims abstract description 5
- 239000011159 matrix material Substances 0.000 claims abstract description 4
- 229920005552 sodium lignosulfonate Polymers 0.000 claims description 38
- 229920005610 lignin Polymers 0.000 claims description 34
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 27
- OSOIQJGOYGSIMF-UHFFFAOYSA-N cyclopentadecanone Chemical compound O=C1CCCCCCCCCCCCCC1 OSOIQJGOYGSIMF-UHFFFAOYSA-N 0.000 claims description 26
- 241000209140 Triticum Species 0.000 claims description 24
- 235000021307 Triticum Nutrition 0.000 claims description 24
- 239000010902 straw Substances 0.000 claims description 24
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 22
- 239000000706 filtrate Substances 0.000 claims description 18
- 238000001914 filtration Methods 0.000 claims description 18
- 239000000843 powder Substances 0.000 claims description 18
- 229920001896 polybutyrate Polymers 0.000 claims description 17
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 16
- DXGLGDHPHMLXJC-UHFFFAOYSA-N oxybenzone Chemical compound OC1=CC(OC)=CC=C1C(=O)C1=CC=CC=C1 DXGLGDHPHMLXJC-UHFFFAOYSA-N 0.000 claims description 16
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 claims description 13
- 235000010354 butylated hydroxytoluene Nutrition 0.000 claims description 13
- 239000000047 product Substances 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 9
- 238000000227 grinding Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000001027 hydrothermal synthesis Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
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- 238000002390 rotary evaporation Methods 0.000 claims description 9
- 239000011734 sodium Substances 0.000 claims description 9
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- 239000000126 substance Substances 0.000 claims description 9
- 238000010992 reflux Methods 0.000 claims description 6
- YDEXUEFDPVHGHE-GGMCWBHBSA-L disodium;(2r)-3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Na+].[Na+].COC1=CC=CC(C[C@H](CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O YDEXUEFDPVHGHE-GGMCWBHBSA-L 0.000 claims description 5
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- 239000004698 Polyethylene Substances 0.000 description 4
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- 239000011425 bamboo Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- -1 polyethylene Polymers 0.000 description 4
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- 238000012360 testing method Methods 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
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- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- GDVKFRBCXAPAQJ-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O GDVKFRBCXAPAQJ-UHFFFAOYSA-A 0.000 description 1
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- 230000007613 environmental effect Effects 0.000 description 1
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention belongs to the technical field of degradable materials, and particularly relates to a degradable material with heat-resistant and aging-resistant properties. Aiming at the problem that the degradable material used for preparing the degradable product in the prior art generally has poor heat-resistant aging performance, the invention provides the degradable material with the heat-resistant aging performance, which comprises degradable matrix resin, talcum powder, an ultraviolet absorbent, an antioxidant and an aging-resistant reinforced composite auxiliary agent. The anti-aging reinforced composite auxiliary agent provided by the invention can be better applied to degradable materials to improve the heat-resistant and anti-aging performance of the degradable materials, does not hinder the degradability of the materials, and is environment-friendly.
Description
Technical Field
The invention belongs to the technical field of degradable materials, and particularly relates to a degradable material with heat-resistant and aging-resistant properties.
Background
The degradable material is degradable in a period of time in thermodynamic and kinetic meanings, and has obvious environmental protection significance. The development of degradable materials is one of the development directions of the strategic emerging industries of China, and the market space in the future is wide. The problem of poor heat resistance and aging resistance of degradable materials in the prior art generally exists, so that the aging resistance of the prepared disposable plastic product is poor.
In order to solve this problem, research and study have been conducted in long-term production and living practices, for example, chinese patent application discloses a polyethylene composite material resistant to thermal aging [ application No.: 202011247478.6], which contains the following raw materials in percentage by weight: 78.7 to 86.7 percent of polyethylene, 2.0 percent of cross-linking agent, 0.3 percent of antioxidant, 3.0 to 8.0 percent of polyethylene wax, 5.0 to 8.0 percent of light calcium carbonate and 3.0 to 5.0 percent of hydrotalcite.
The interaction of the components of the invention patent application improves the thermal stability of the composite material. However, the component can only be used for modifying materials such as polyethylene, and the application of the component to degradable materials can reduce the degradability of the materials.
Disclosure of Invention
The invention aims to solve the problems and provide a degradable material with heat-resistant and aging-resistant properties.
In order to achieve the purpose, the invention adopts the following technical scheme:
a degradable material with heat-resistant and ageing-resistant performance comprises degradable matrix resin, talcum powder, ultraviolet absorbent, antioxidant and ageing-resistant reinforced composite auxiliary agent.
In the above degradable material having heat and aging resistant properties, the degradable base resin includes a PLA resin, a PBS resin, and a PBAT resin, and the amount of the PLA resin is more than the amount of the PBS resin, and the amount of the PBS resin is more than the amount of the PBAT resin.
In the degradable material with heat and aging resistance, the aging-resistant reinforced composite auxiliary agent comprises sodium lignosulfonate, cyclopentadecanone and 2, 6-di-tert-butyl-4-methylphenol.
In the degradable material with heat resistance and aging resistance, the ultraviolet absorbent comprises 2-hydroxy-4-methoxybenzophenone.
In the degradable material with heat resistance and aging resistance, the antioxidant comprises an antioxidant 1010.
In the degradable material with heat-resistant and aging-resistant properties, the degradable material comprises 60-80 parts by mass of PLA resin, 40-50 parts by mass of PBS resin, 10-15 parts by mass of PBAT resin, 10-15 parts by mass of talcum powder, 0.1-1 part by mass of 2-hydroxy-4-methoxybenzophenone, 0.1-1 part by mass of antioxidant 1010, 10-15 parts by mass of sodium lignosulfonate, 1-5 parts by mass of cyclopentadecanone and 0.1-2 parts by mass of 2, 6-di-tert-butyl-4-methylphenol.
In the degradable material with heat-resistant and aging-resistant properties, the degradable material comprises 70 parts by mass of PLA resin, 45 parts by mass of PBS resin, 12 parts by mass of PBAT resin, 12 parts by mass of talcum powder, 0.5 part by mass of 2-hydroxy-4-methoxybenzophenone, 0.5 part by mass of antioxidant 1010, 12 parts by mass of sodium lignosulfonate, 3 parts by mass of cyclopentadecanone and 1 part by mass of 2, 6-di-tert-butyl-4-methylphenol.
In the degradable material with heat-resistant and aging-resistant properties, the lignin source of the prepared sodium lignin sulfonate is wheat straw lignin.
In the degradable material with heat-resistant and aging-resistant properties, the sodium lignin sulfonate is prepared by the following steps:
the method comprises the following steps: crushing and grinding the washed wheat straw to obtain wheat straw powder;
step two: preparing an ethanol solution as an extracting solution, adding the wheat straw powder into the extracting solution, and heating and refluxing for extraction for 3-6h;
step three: filtering to remove solid substances while the solution is hot to obtain filtrate containing lignin;
step four: removing the filtrate by rotary evaporation to obtain lignin;
step five: mixing the obtained lignin and Na 2 SO 3 Completely dissolving in NaOH solution with pH of 13, then placing the solution into a hydrothermal reaction kettle, reacting for 5h at a high temperature of 165 ℃ to obtain a product sodium lignosulfonate solution, concentrating, crystallizing, filtering and drying to obtain sodium lignosulfonate.
In the degradable material with heat-resistant and aging-resistant properties, the mass fraction of the ethanol solution in the second step is 30%.
Compared with the prior art, the invention has the advantages that:
1. the anti-aging reinforced composite auxiliary agent provided by the invention can be better applied to degradable materials to improve the heat-resistant and anti-aging performance of the degradable materials, does not hinder the degradability of the materials, and is environment-friendly.
2. The invention has the advantages of simple and easily obtained component materials, low production cost and suitability for large-scale popularization and use.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments.
Example 1
The embodiment provides a degradable material with heat-resistant and aging-resistant properties, which comprises 60 parts of PLA resin, 50 parts of PBS resin, 15 parts of PBAT resin, 15 parts of talcum powder, 1 part of 2-hydroxy-4-methoxybenzophenone, 1 part of antioxidant 1010, 15 parts of sodium lignosulfonate, 5 parts of cyclopentadecanone and 2 parts of 2, 6-di-tert-butyl-4-methylphenol in parts by mass.
The sodium lignin sulfonate is prepared by the following steps:
the method comprises the following steps: crushing and grinding the washed wheat straws to obtain wheat straw powder;
step two: preparing an ethanol solution with the mass fraction of 30% as an extracting solution, adding the wheat straw powder into the extracting solution, and heating, refluxing and extracting for 3 hours;
step three: filtering to remove solid substances while the solution is hot to obtain filtrate containing lignin;
step four: removing the filtrate by rotary evaporation to obtain lignin;
step five: mixing the obtained lignin and Na 2 SO 3 Completely dissolving in NaOH solution with pH of 13, then putting the solution into a hydrothermal reaction kettle, reacting for 5 hours at a high temperature of 165 ℃ to obtain a product sodium lignosulfonate solution, concentrating, crystallizing, filtering and drying to obtain the sodium lignosulfonate.
Example 2
The embodiment provides a degradable material with heat-resistant and aging-resistant properties, which comprises 80 parts by mass of PLA resin, 40 parts by mass of PBS resin, 10 parts by mass of PBAT resin, 10 parts by mass of talcum powder, 0.1 part by mass of 2-hydroxy-4-methoxybenzophenone, 0.1 part by mass of antioxidant 1010, 10 parts by mass of sodium lignosulfonate, 1 part by mass of cyclopentadecanone and 0.1 part by mass of 2, 6-di-tert-butyl-4-methylphenol.
The sodium lignosulfonate is prepared by the following steps:
the method comprises the following steps: crushing and grinding the washed wheat straws to obtain wheat straw powder;
step two: preparing 30% ethanol solution as an extracting solution, adding the wheat straw powder into the extracting solution, and heating and refluxing for extraction for 6 hours;
step three: filtering to remove solid substances while the solution is hot to obtain filtrate containing lignin;
step four: removing the filtrate by rotary evaporation to obtain lignin;
step five: mixing the obtained lignin and Na 2 SO 3 Completely dissolving in NaOH solution with pH of 13, then putting the solution into a hydrothermal reaction kettle, reacting for 5 hours at a high temperature of 165 ℃ to obtain a product sodium lignosulfonate solution, concentrating, crystallizing, filtering and drying to obtain the sodium lignosulfonate.
Example 3
The embodiment provides a degradable material with heat-resistant and aging-resistant properties, which comprises 70 parts by mass of PLA resin, 45 parts by mass of PBS resin, 12 parts by mass of PBAT resin, 12 parts by mass of talcum powder, 0.5 part by mass of 2-hydroxy-4-methoxybenzophenone, 0.5 part by mass of antioxidant 1010, 12 parts by mass of sodium lignosulfonate, 3 parts by mass of cyclopentadecanone and 1 part by mass of 2, 6-di-tert-butyl-4-methylphenol.
The sodium lignosulfonate is prepared by the following steps:
the method comprises the following steps: crushing and grinding the washed wheat straws to obtain wheat straw powder;
step two: preparing 30% ethanol solution as extracting solution, adding wheat straw powder into the extracting solution, and heating and reflux-extracting for 4.5h;
step three: filtering to remove solid substances while the solution is hot to obtain filtrate containing lignin;
step four: removing the filtrate by rotary evaporation to obtain lignin;
step five: mixing the obtained lignin and Na 2 SO 3 Completely dissolving in NaOH solution with pH of 13, then placing the solution into a hydrothermal reaction kettle, reacting for 5h at a high temperature of 165 ℃ to obtain a product sodium lignosulfonate solution, concentrating, crystallizing, filtering and drying to obtain sodium lignosulfonate.
Example 4
The embodiment provides a degradable material with heat-resistant and aging-resistant properties, which comprises 70 parts by mass of PLA resin, 45 parts by mass of PBS resin, 12 parts by mass of PBAT resin, 12 parts by mass of talcum powder, 0.5 part by mass of 2-hydroxy-4-methoxybenzophenone, 0.5 part by mass of antioxidant 1010, 12 parts by mass of sodium lignosulfonate, 3 parts by mass of cyclopentadecanone and 1 part by mass of 2, 6-di-tert-butyl-4-methylphenol.
The sodium lignosulfonate is prepared by the following steps:
the method comprises the following steps: crushing and grinding the cleaned bamboo wood to obtain bamboo wood powder;
step two: preparing an ethanol solution with the mass fraction of 30% as an extracting solution, adding bamboo powder into the extracting solution, and heating, refluxing and extracting for 4.5 hours;
step three: filtering to remove solid substances while the solution is hot to obtain filtrate containing lignin;
step four: removing the filtrate by rotary evaporation to obtain lignin;
step five: mixing the obtained lignin and Na 2 SO 3 Completely dissolving in NaOH solution with pH of 13, then placing the solution into a hydrothermal reaction kettle, reacting for 5h at a high temperature of 165 ℃ to obtain a product sodium lignosulfonate solution, concentrating, crystallizing, filtering and drying to obtain sodium lignosulfonate.
Example 5
The embodiment provides a degradable material with heat-resistant and aging-resistant properties, which comprises 70 parts by mass of PLA resin, 45 parts by mass of PBS resin, 12 parts by mass of PBAT resin, 12 parts by mass of talcum powder, 0.5 part by mass of 2-hydroxy-4-methoxybenzophenone, 0.5 part by mass of antioxidant 1010, 12 parts by mass of sodium lignosulfonate, 3 parts by mass of cyclopentadecanone and 1 part by mass of 2, 6-di-tert-butyl-4-methylphenol.
The sodium lignosulfonate is prepared by the following steps:
the method comprises the following steps: crushing and grinding the cleaned bagasse to obtain bagasse powder;
step two: preparing an ethanol solution with the mass fraction of 30% as an extracting solution, adding bagasse powder into the extracting solution, and heating, refluxing and extracting for 4.5 hours;
step three: filtering to remove solid substances while the solution is hot to obtain filtrate containing lignin;
step four: removing the filtrate by rotary evaporation to obtain lignin;
step five: mixing the obtained lignin and Na 2 SO 3 Completely dissolving in NaOH solution with pH of 13, then putting the solution into a hydrothermal reaction kettle, reacting for 5 hours at a high temperature of 165 ℃ to obtain a product sodium lignosulfonate solution, concentrating, crystallizing, filtering and drying to obtain the sodium lignosulfonate.
Comparative example 1
The comparative example provides a degradable material, which comprises 70 parts by mass of PLA resin, 45 parts by mass of PBS resin, 12 parts by mass of PBAT resin, 12 parts by mass of talcum powder, 0.5 part by mass of 2-hydroxy-4-methoxybenzophenone and 0.5 part by mass of antioxidant 1010.
Comparative example 2
The comparative example provides a degradable material which comprises 70 parts of PLA resin, 45 parts of PBS resin, 12 parts of PBAT resin, 12 parts of talcum powder, 0.5 part of 2-hydroxy-4-methoxybenzophenone, 0.5 part of antioxidant 1010 and 12 parts of sodium lignosulfonate in parts by mass.
The sodium lignosulfonate is prepared by the following steps:
the method comprises the following steps: crushing and grinding the washed wheat straws to obtain wheat straw powder;
step two: preparing 30% ethanol solution as extracting solution, adding wheat straw powder into the extracting solution, and heating and reflux-extracting for 4.5h;
step three: filtering to remove solid substances while the solution is hot to obtain filtrate containing lignin;
step four: removing the filtrate by rotary evaporation to obtain lignin;
step five: mixing the obtained lignin and Na 2 SO 3 Completely dissolving in NaOH solution with pH of 13, then placing the solution into a hydrothermal reaction kettle, reacting for 5h at a high temperature of 165 ℃ to obtain a product sodium lignosulfonate solution, concentrating, crystallizing, filtering and drying to obtain sodium lignosulfonate.
Comparative example 3
The comparative example provides a degradable material, which comprises 70 parts by mass of PLA resin, 45 parts by mass of PBS resin, 12 parts by mass of PBAT resin, 12 parts by mass of talcum powder, 0.5 part by mass of 2-hydroxy-4-methoxybenzophenone, 0.5 part by mass of antioxidant 1010 and 3 parts by mass of cyclopentadecanone.
Comparative example 4
The comparative example provides a degradable material, which comprises 70 parts by mass of PLA resin, 45 parts by mass of PBS resin, 12 parts by mass of PBAT resin, 12 parts by mass of talcum powder, 0.5 part by mass of 2-hydroxy-4-methoxybenzophenone, 0.5 part by mass of antioxidant 1010 and 1 part by mass of 2, 6-di-tert-butyl-4-methylphenol.
Comparative example 5
The comparative example provides a degradable material which comprises 70 parts of PLA resin, 45 parts of PBS resin, 12 parts of talcum powder, 0.5 part of 2-hydroxy-4-methoxybenzophenone, 0.5 part of antioxidant 1010, 12 parts of sodium lignosulfonate, 3 parts of cyclopentadecanone and 1 part of 2, 6-di-tert-butyl-4-methylphenol in parts by mass.
The sodium lignin sulfonate is prepared by the following steps:
the method comprises the following steps: crushing and grinding the washed wheat straw to obtain wheat straw powder;
step two: preparing 30% ethanol solution as extracting solution, adding wheat straw powder into the extracting solution, and heating and reflux-extracting for 4.5h;
step three: filtering to remove solid substances while the solution is hot to obtain filtrate containing lignin;
step four: removing the filtrate by rotary evaporation to obtain lignin;
step five: mixing the obtained lignin and Na 2 SO 3 Completely dissolving in NaOH solution with pH of 13, then putting the solution into a hydrothermal reaction kettle, reacting for 5 hours at a high temperature of 165 ℃ to obtain a product sodium lignosulfonate solution, concentrating, crystallizing, filtering and drying to obtain the sodium lignosulfonate.
Application example 1
Material 1 was prepared from the degradable material composition described in example 3;
material 2 was prepared with the degradable material composition described in example 4;
material 3 was prepared with the degradable material composition described in example 5;
preparing a material 4 from the degradable material composition described in comparative example 1;
preparing a material 5 from the degradable material composition described in comparative example 2;
preparing a material 6 from the degradable material composition described in comparative example 3;
preparing a material 7 with the degradable material composition described in comparative example 4;
preparing a material 8 with the degradable material composition described in comparative example 5;
the materials 1-8 are cut into experimental materials 1-8 with equal length, width and thickness. Respectively measuring the bending strength and the tensile strength of the experimental materials 1-8, then carrying out a heat aging experiment under the conditions of 100 ℃ and 100h, and after the heat aging experiment, respectively measuring the bending strength and the tensile strength of the experimental materials 1-8 according to the calculation formula:
rate of change = (pre-experimental data-post-experimental data)/pre-experimental data = 100%
The rate of change in flexural strength and the rate of change in tensile strength were calculated and compared to the change in appearance of the material before and after the experiment, with the results shown in the following table:
and (4) analyzing results: compared with the experimental data of the experimental materials 1-3, the lignin in the prior art has various sources, can be derived from wood, bamboo, bagasse and the like, but the lignin derived from wheat straw is compared with other lignin, and the prepared sodium lignosulfonate is added as one of the components of the aging-resistant reinforced composite auxiliary agent to prepare the degradable material, so that the degradable material has better heat-resistant and aging-resistant effects.
The experimental data of the experimental material 1 and the experimental materials 4-8 are compared to find that the degradable material prepared by the invention has the optimal thermal aging resistance.
In conclusion, after a thermal aging experiment, the degradable material prepared by the invention has small change of bending strength and tensile strength and excellent thermal aging resistance, so the expected purpose of the invention is achieved.
The heat aging test is carried out by using a TRLH-150L hot air aging test box produced by Wuxi Tengchuan instruments and equipment Limited, and the detection data of the bending strength and the tensile strength are from an electronic universal tester produced by Changchun New testing machine Limited.
The above experimental values were averaged in triplicate experiments using the instrument.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (10)
1. A degradable material with heat-resistant and aging-resistant properties comprises a degradable matrix resin, and is characterized in that: also comprises talcum powder, ultraviolet absorbent, antioxidant and aging-resistant reinforced composite auxiliary agent.
2. The degradable material having heat and aging resistant properties of claim 1 wherein: the degradable matrix resin comprises PLA resin, PBS resin and PBAT resin, and the amount of the PLA resin is more than that of the PBS resin, and the amount of the PBS resin is more than that of the PBAT resin.
3. The degradable material having heat and aging resistant properties of claim 1 wherein: the anti-aging reinforced composite auxiliary agent comprises sodium lignosulphonate, cyclopentadecanone and 2, 6-di-tert-butyl-4-methylphenol.
4. The degradable material with heat and aging resistant properties of claim 1 wherein: the ultraviolet absorbent comprises 2-hydroxy-4-methoxybenzophenone.
5. The degradable material having heat and aging resistant properties of claim 1 wherein: the antioxidant comprises antioxidant 1010.
6. The degradable material with heat and aging resistant properties of claim 1 wherein: the degradable material comprises 60-80 parts of PLA resin, 40-50 parts of PBS resin, 10-15 parts of PBAT resin, 10-15 parts of talcum powder, 0.1-1 part of 2-hydroxy-4-methoxybenzophenone, 0.1-1 part of antioxidant 1010, 10-15 parts of sodium lignosulfonate, 1-5 parts of cyclopentadecanone and 0.1-2 parts of 2, 6-di-tert-butyl-4-methylphenol by mass.
7. The degradable material having heat and aging resistant properties of claim 6 wherein: the degradable material comprises 70 parts by mass of PLA resin, 45 parts by mass of PBS resin, 12 parts by mass of PBAT resin, 12 parts by mass of talcum powder, 0.5 part by mass of 2-hydroxy-4-methoxybenzophenone, 0.5 part by mass of antioxidant 1010, 12 parts by mass of sodium lignosulfonate, 3 parts by mass of cyclopentadecanone and 1 part by mass of 2, 6-di-tert-butyl-4-methylphenol.
8. The degradable material with heat and aging resistant properties of claim 6 wherein: the lignin source of the prepared sodium lignin sulfonate is wheat straw lignin.
9. The degradable material with heat and aging resistant properties of claim 8 wherein: the sodium lignosulfonate is prepared by the following steps:
the method comprises the following steps: crushing and grinding the washed wheat straw to obtain wheat straw powder;
step two: preparing an ethanol solution as an extracting solution, adding the wheat straw powder into the extracting solution, and heating and refluxing for extraction for 3-6h;
step three: filtering to remove solid substances while the solution is hot to obtain filtrate containing lignin;
step four: removing the filtrate by rotary evaporation to obtain lignin;
step five: mixing the obtained lignin and Na 2 SO 3 Completely dissolving in NaOH solution with pH of 13, then placing the solution into a hydrothermal reaction kettle, reacting for 5h at a high temperature of 165 ℃ to obtain a product sodium lignosulfonate solution, concentrating, crystallizing, filtering and drying to obtain sodium lignosulfonate.
10. The degradable material having heat and aging resistant properties of claim 9 wherein: and the mass fraction of the ethanol solution in the second step is 30%.
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| CN202211267231.XA CN115651373A (en) | 2022-10-17 | 2022-10-17 | Degradable material with heat-resistant and ageing-resistant properties |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110003626A (en) * | 2019-04-28 | 2019-07-12 | 兰州鑫银环橡塑制品有限公司 | A kind of resistance to intensive ultraviolet whole life cycle design PP Pipe Compound and preparation method thereof |
| CN112521730A (en) * | 2020-11-23 | 2021-03-19 | 陈京灿 | Biodegradable composite material and preparation method thereof |
| CN113337084A (en) * | 2021-04-20 | 2021-09-03 | 宁波坚锋新材料有限公司 | Biodegradable film material capable of efficiently shielding ultraviolet and preparation method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110003626A (en) * | 2019-04-28 | 2019-07-12 | 兰州鑫银环橡塑制品有限公司 | A kind of resistance to intensive ultraviolet whole life cycle design PP Pipe Compound and preparation method thereof |
| CN112521730A (en) * | 2020-11-23 | 2021-03-19 | 陈京灿 | Biodegradable composite material and preparation method thereof |
| CN113337084A (en) * | 2021-04-20 | 2021-09-03 | 宁波坚锋新材料有限公司 | Biodegradable film material capable of efficiently shielding ultraviolet and preparation method thereof |
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