CN110724372A - Biodegradable coffee residue rattan-like material - Google Patents
Biodegradable coffee residue rattan-like material Download PDFInfo
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- CN110724372A CN110724372A CN201910909273.0A CN201910909273A CN110724372A CN 110724372 A CN110724372 A CN 110724372A CN 201910909273 A CN201910909273 A CN 201910909273A CN 110724372 A CN110724372 A CN 110724372A
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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
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
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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
- C08L2201/00—Properties
- C08L2201/06—Biodegradable
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/08—Polymer mixtures characterised by other features containing additives to improve the compatibility between two polymers
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Abstract
The invention discloses a biodegradable coffee residue rattan-imitated material which is prepared from the following raw materials in parts by weight: polylactic acid: 40-50 parts; poly (butylene adipate/terephthalate): 5-15 parts; modified coffee grounds: 20-40 parts; nucleating agent: 5-15 parts; crystallization accelerator: 0.5-1 part; compatibilizer: 2-5 parts; melt strength enhancer: 0.1-5 parts; lubricant: 0.5-2 parts; anti-aging agent: 0.1-0.6 part; antioxidant: 0.1-0.6 part; anti-ultraviolet agent: 0.1 to 0.6 portion. According to the invention, the rattan-imitated material is prepared from coffee grounds, so that a large amount of waste residues generated in the coffee industry are effectively utilized, meanwhile, the smell of the original plastic rattan-imitated material is effectively improved, and the woody texture of the rattan-imitated material is enhanced; the biodegradable polylactic acid is used for replacing the traditional polyethylene and polyvinyl chloride, so that the environmental pollution is reduced, and the ecological environment is protected.
Description
Technical Field
The invention relates to a novel rattan woven material, in particular to a biodegradable coffee grounds rattan-imitating material.
Background
With the continuous improvement of living standard, people have higher and higher requirements on living environment, for example, some green is added on office places or indoor decorations, so that the rattan woven material is favored by consumers as a traditional woven material. However, because of the shortage of natural rattan, many products are woven into rattan-like woven products by rattan-like materials such as plastics so as to meet the market demand. The existing rattan-like material mostly adopts plastic rattan-like materials, including PE rattan and PVC rattan, compared with natural rattan, the plastic rattan-like material has long service life, low cost and good treatment effect, but is difficult to degrade after being discarded, and pollutes the environment, so that the use of the plastic rattan-like material is limited.
In view of the coffee diet culture of the global market, the daily generated coffee grounds are increased day by day, the waste utilization research of the coffee grounds is concerned by people along with the gradual world mainstream concept of environmental protection and low carbon, although the biomass material has a plurality of applications, the research on the coffee grounds at home and abroad is in a primary stage at present, the research is mainly focused on the aspects of component analysis, component extraction, pyrolysis kinetics, combustion characteristics, compost and the like, the research cannot realize high-quality comprehensive utilization of the coffee grounds, and no good environmental, economic and social benefits exist.
Therefore, there is a need to develop a biodegradable coffee grounds rattan-imitated material that makes full use of coffee grounds to solve the above problems.
Disclosure of Invention
The invention aims to solve the problem of environmental pollution of the rattan-like material, improve the use value of coffee grounds and provide a novel biodegradable rattan-like material of the coffee grounds.
In order to achieve the aim, the invention provides a biodegradable coffee ground rattan-imitating material which is prepared from the following raw materials in parts by weight: polylactic acid (PLA): 40-50 parts; poly (butylene adipate terephthalate) (PBAT): 5-15 parts; modified coffee grounds: 20-40 parts; nucleating agent: 5-15 parts; crystallization accelerator: 0.5-1 part; compatibilizer: 2-5 parts; melt strength enhancer: 0.1-5 parts; lubricant: 0.5-2 parts; anti-aging agent: 0.1-0.6 part; antioxidant: 0.1-0.6 part; anti-ultraviolet agent: 0.1 to 0.6 portion.
Wherein the modified coffee grounds are obtained by the following processes: crushing coffee grounds to 40-200 meshes, and drying until the water content is 1.5% -3%; after drying the coffee grounds, heating to 70-150 ℃, keeping the temperature for more than 10 minutes, and then adding a coupling agent; fully mixing, and keeping at 80-180 deg.C for more than 10 min under stirring to obtain the modified coffee grounds; the weight portion ratio of the coffee grounds to the coupling agent is 20: 1.
Preferably, the coupling agent is silane coupling agent KH-550.
Preferably, the nucleating agent is talcum powder, the talcum powder has various comprehensive properties of improving molding shrinkage rate, finished product surface hardness, surface scratch resistance, impact strength and the like in polylactic acid modification, the talcum powder is used as an inorganic additive and does not conflict with biodegradability of polylactic acid, and the fineness of the talcum powder is 1250-5000 meshes; the crystallization promoter is polyethylene glycol (PEG), the molecular weight of the polyethylene glycol is 6000g/mol at 1000-.
Preferably, the compatibilizer is ethylene-n-butyl acrylate-glycidyl methacrylate triblock copolymer (E-BA-GMA) or hyperbranched triazine.
Preferably, the melt strength enhancer is one or more of a compound of an epoxy functional group-containing material and an acrylic star-shaped copolymer, wherein the functional number of the epoxy functional group is controlled to be 9-20, and the physical property effect is optimal.
Preferably, the lubricant is one or more of vinyl bis stearamide, low molecular weight polyethylene wax, erucamide and stearic acid. Lubricants are used to ensure internal and external lubrication during the production of the product.
Preferably, the antioxidant is one or more of hindered phenol antioxidant and phosphite antioxidant; the hindered phenol antioxidant is selected from one or more of antioxidant 1010, antioxidant 1070 and antioxidant 1076; the phosphite antioxidant is one or two selected from antioxidant 168 and antioxidant 626; the ultraviolet resistant agent is UV-531.
The biodegradable rattan-like strip is round rattan or flat rattan.
The invention also provides a method for preparing the biodegradable coffee ground rattan-imitating material, which comprises the following steps: firstly, mixing and granulating the obtained modified coffee grounds with polylactic acid, poly (butylene adipate)/terephthalate, a nucleating agent, a crystallization promoter, a melt strength enhancer and a compatibilizer in granulation equipment at the granulation temperature of 140-240 ℃ to obtain coffee grounds modified plastic master batches; mixing the obtained coffee grounds modified plastic master batch with a lubricant, an anti-aging agent, an antioxidant and an anti-ultraviolet agent, and extruding and molding the mixture on a rattan-imitating machine to obtain the biodegradable rattan-imitating strip containing the coffee grounds.
Compared with the prior art, the invention has the following advantages:
1. the invention adopts the coffee grounds to prepare the rattan-imitated material, not only effectively utilizes a large amount of waste residues generated by the coffee industry, but also effectively improves the smell of the original plastic rattan-imitated material and enhances the woody texture of the rattan-imitated material through the special smell of the coffee grounds and the lignin fibers contained in the coffee grounds.
2. The invention uses the biodegradable polylactic acid (PLA) to replace the traditional Polyethylene (PE) and polyvinyl chloride (PVC) to prepare the rattan-like material, thereby avoiding the use of the PE and the PVC and reducing the environmental pollution.
3. Polylactic acid (PLA) is a biodegradable material widely used as an aliphatic thermoplastic polyester. The material has the advantages of good processing performance, excellent mechanical performance, light transmission and the like, but the inherent brittleness limits the application of the material in the aspect of rattan-like materials. The invention solves the problem of brittleness of polylactic acid by adding PBAT, is the key point of improving toughness, and improves the compatibility between poly adipic acid/butylene terephthalate (PBAT) and polylactic acid (PLA) by using a compatibilizer.
4. The rattan-like material prepared by the invention has strong wood texture, high surface hardness, strong wear resistance, long service life, light coffee fragrance, better flexibility and comfort, overcomes the periodicity problem existing in the natural plant to a greater extent, and is beneficial to protecting the ecological environment.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.
The modified coffee grounds used in examples 1-22 of the present invention were obtained by: crushing coffee grounds to 40 meshes, and drying until the moisture content is 2%; heating and drying the coffee grounds, heating to 100 ℃, keeping the temperature for more than 15 minutes, and then adding a silane coupling agent KH-550, wherein the weight part ratio of the coffee grounds to the coupling agent is 20: 1; after thorough mixing, the mixture was kept at 120 ℃ for 15 minutes to obtain modified coffee grounds.
Example 1
A biodegradable coffee grounds rattan-like material is prepared from the following raw materials in parts by weight: 20 parts of modified coffee grounds, 40 parts of polylactic acid (PLA), 5 parts of poly (butylene adipate terephthalate) (PBAT), 5 parts of melt strength enhancer, 15 parts of nucleating agent, 1 part of crystallization promoter, 5 parts of compatibilizer, 2 parts of lubricant, 0.6 part of age inhibitor, 0.6 part of antioxidant and 0.6 part of ultraviolet resistant agent; the compatibilizer is ethylene-n-butyl acrylate-glycidyl methacrylate triblock copolymer (E-BA-GMA), the melt strength reinforcing agent is an epoxy functional group-containing material and acrylic acid series star-shaped copolymer with the weight ratio of 1:1, the lubricant is vinyl bis stearamide, low molecular weight polyethylene wax and stearic acid with the weight ratio of 1:1:1, and the antioxidant is hindered phenol antioxidant and phosphite antioxidant with the weight ratio of 2: 1. More specifically, weighing the required raw materials according to the weight parts of the components, and mixing and granulating the modified coffee grounds, the polylactic acid, the poly adipic acid/butylene terephthalate, the nucleating agent, the crystallization promoter, the melt strength enhancer and the compatibilizer in granulation equipment at 140 ℃ to obtain coffee grounds modified plastic master batches; mixing the obtained coffee grounds modified plastic master batch with the weighed lubricant, anti-aging agent, antioxidant and anti-ultraviolet agent; and then extruding the mixture on a rattan imitation machine through a flat die to form flat biodegradable rattan imitation containing coffee grounds.
Example 2
A biodegradable coffee grounds rattan-like material is prepared from the following raw materials in parts by weight: 30 parts of modified coffee grounds, 40 parts of polylactic acid (PLA), 5 parts of poly (butylene adipate terephthalate) (PBAT), 5 parts of melt strength enhancer, 15 parts of nucleating agent, 1 part of crystallization promoter, 5 parts of compatibilizer, 2 parts of lubricant, 0.6 part of age inhibitor, 0.6 part of antioxidant and 0.6 part of ultraviolet resistant agent; the compatibilizer is ethylene-n-butyl acrylate-glycidyl methacrylate triblock copolymer (E-BA-GMA), the melt strength reinforcing agent is an epoxy functional group-containing material and acrylic acid series star-shaped copolymer with the weight ratio of 1:1, the lubricant is vinyl bis stearamide, low molecular weight polyethylene wax and stearic acid with the weight ratio of 1:1:1, and the antioxidant is hindered phenol antioxidant and phosphite antioxidant with the weight ratio of 2: 1. More specifically, weighing the required raw materials according to the weight parts of the components, and mixing and granulating the modified coffee grounds, the polylactic acid, the poly adipic acid/butylene terephthalate, the nucleating agent, the crystallization promoter, the melt strength enhancer and the compatibilizer in granulation equipment at 140 ℃ to obtain coffee grounds modified plastic master batches; mixing the obtained coffee grounds modified plastic master batch with the weighed lubricant, anti-aging agent, antioxidant and anti-ultraviolet agent; and then extruding the mixture on a rattan imitation machine through a flat die to form flat biodegradable rattan imitation containing coffee grounds.
Example 3
A biodegradable coffee grounds rattan-like material is prepared from the following raw materials in parts by weight: 40 parts of modified coffee grounds, 40 parts of polylactic acid (PLA), 5 parts of poly (butylene adipate terephthalate) (PBAT), 5 parts of melt strength enhancer, 15 parts of nucleating agent, 1 part of crystallization promoter, 5 parts of compatibilizer, 2 parts of lubricant, 0.6 part of age inhibitor, 0.6 part of antioxidant and 0.6 part of ultraviolet resistant agent; the compatibilizer is ethylene-n-butyl acrylate-glycidyl methacrylate triblock copolymer (E-BA-GMA), the melt strength reinforcing agent is an epoxy functional group-containing material and acrylic acid series star-shaped copolymer with the weight ratio of 1:1, the lubricant is vinyl bis stearamide, low molecular weight polyethylene wax and stearic acid with the weight ratio of 1:1:1, and the antioxidant is hindered phenol antioxidant and phosphite antioxidant with the weight ratio of 2: 1. More specifically, weighing the required raw materials according to the weight parts of the components, and mixing and granulating the modified coffee grounds, the polylactic acid, the poly adipic acid/butylene terephthalate, the nucleating agent, the crystallization promoter, the melt strength enhancer and the compatibilizer in granulation equipment at 140 ℃ to obtain coffee grounds modified plastic master batches; mixing the obtained coffee grounds modified plastic master batch with the weighed lubricant, anti-aging agent, antioxidant and anti-ultraviolet agent; and then extruding the mixture on a rattan imitation machine through a flat die to form flat biodegradable rattan imitation containing coffee grounds.
Example 4
A biodegradable coffee grounds rattan-like material is prepared from the following raw materials in parts by weight: 30 parts of modified coffee grounds, 50 parts of polylactic acid (PLA), 5 parts of poly (butylene adipate terephthalate) (PBAT), 5 parts of melt strength enhancer, 15 parts of nucleating agent, 1 part of crystallization promoter, 5 parts of compatibilizer, 2 parts of lubricant, 0.6 part of age inhibitor, 0.6 part of antioxidant and 0.6 part of ultraviolet resistant agent; the compatibilizer is ethylene-n-butyl acrylate-glycidyl methacrylate triblock copolymer (E-BA-GMA), the melt strength reinforcing agent is an epoxy functional group-containing material and acrylic acid series star-shaped copolymer with the weight ratio of 1:1, the lubricant is vinyl bis stearamide, low molecular weight polyethylene wax and stearic acid with the weight ratio of 1:1:1, and the antioxidant is hindered phenol antioxidant and phosphite antioxidant with the weight ratio of 2: 1. More specifically, weighing the required raw materials according to the weight parts of the components, and mixing and granulating the modified coffee grounds, the polylactic acid, the poly adipic acid/butylene terephthalate, the nucleating agent, the crystallization promoter, the melt strength enhancer and the compatibilizer in granulation equipment at 140 ℃ to obtain coffee grounds modified plastic master batches; mixing the obtained coffee grounds modified plastic master batch with the weighed lubricant, anti-aging agent, antioxidant and anti-ultraviolet agent; and then extruding the mixture on a rattan imitation machine through a flat die to form flat biodegradable rattan imitation containing coffee grounds.
Example 5
A biodegradable coffee grounds rattan-like material is prepared from the following raw materials in parts by weight: 30 parts of modified coffee grounds, 40 parts of polylactic acid (PLA), 10 parts of poly (butylene adipate/terephthalate) (PBAT), 5 parts of melt strength enhancer, 15 parts of nucleating agent, 1 part of crystallization promoter, 5 parts of compatibilizer, 2 parts of lubricant, 0.6 part of age inhibitor, 0.6 part of antioxidant and 0.6 part of ultraviolet resistant agent; the compatibilizer is ethylene-n-butyl acrylate-glycidyl methacrylate triblock copolymer (E-BA-GMA), the melt strength reinforcing agent is an epoxy functional group-containing material and acrylic acid series star-shaped copolymer with the weight ratio of 1:1, the lubricant is vinyl bis stearamide, low molecular weight polyethylene wax and stearic acid with the weight ratio of 1:1:1, and the antioxidant is hindered phenol antioxidant and phosphite antioxidant with the weight ratio of 2: 1. More specifically, weighing the required raw materials according to the weight parts of the components, and mixing and granulating the modified coffee grounds, the polylactic acid, the poly adipic acid/butylene terephthalate, the nucleating agent, the crystallization promoter, the melt strength enhancer and the compatibilizer in granulation equipment at 140 ℃ to obtain coffee grounds modified plastic master batches; mixing the obtained coffee grounds modified plastic master batch with the weighed lubricant, anti-aging agent, antioxidant and anti-ultraviolet agent; then the mixture is extruded out of flat biodegradable rattan-like strips containing coffee grounds on a rattan-like machine through a flat die
Example 6
A biodegradable coffee grounds rattan-like material is prepared from the following raw materials in parts by weight: 30 parts of modified coffee grounds, 40 parts of polylactic acid (PLA), 15 parts of poly (butylene adipate terephthalate) (PBAT), 5 parts of melt strength enhancer, 15 parts of nucleating agent, 1 part of crystallization promoter, 5 parts of compatibilizer, 2 parts of lubricant, 0.6 part of age inhibitor, 0.6 part of antioxidant and 0.6 part of ultraviolet resistant agent; the compatibilizer is ethylene-n-butyl acrylate-glycidyl methacrylate triblock copolymer (E-BA-GMA), the melt strength reinforcing agent is an epoxy functional group-containing material and acrylic acid series star-shaped copolymer with the weight ratio of 1:1, the lubricant is vinyl bis stearamide, low molecular weight polyethylene wax and stearic acid with the weight ratio of 1:1:1, and the antioxidant is hindered phenol antioxidant and phosphite antioxidant with the weight ratio of 2: 1. More specifically, weighing the required raw materials according to the weight parts of the components, and mixing and granulating the modified coffee grounds, the polylactic acid, the poly adipic acid/butylene terephthalate, the nucleating agent, the crystallization promoter, the melt strength enhancer and the compatibilizer in granulation equipment at 140 ℃ to obtain coffee grounds modified plastic master batches; mixing the obtained coffee grounds modified plastic master batch with the weighed lubricant, anti-aging agent, antioxidant and anti-ultraviolet agent; and then extruding the mixture on a rattan imitation machine through a flat die to form flat biodegradable rattan imitation containing coffee grounds.
Example 7
A biodegradable coffee grounds rattan-like material is prepared from the following raw materials in parts by weight: 30 parts of modified coffee grounds, 40 parts of polylactic acid (PLA), 10 parts of poly (butylene adipate/terephthalate) (PBAT), 5 parts of melt strength enhancer, 10 parts of nucleating agent, 1 part of crystallization promoter, 5 parts of compatibilizer, 2 parts of lubricant, 0.6 part of age inhibitor, 0.6 part of antioxidant and 0.6 part of ultraviolet resistant agent; the compatibilizer is ethylene-n-butyl acrylate-glycidyl methacrylate triblock copolymer (E-BA-GMA), the melt strength reinforcing agent is an epoxy functional group-containing material and acrylic acid series star-shaped copolymer with the weight ratio of 1:1, the lubricant is vinyl bis stearamide, low molecular weight polyethylene wax and stearic acid with the weight ratio of 1:1:1, and the antioxidant is hindered phenol antioxidant and phosphite antioxidant with the weight ratio of 2: 1. More specifically, weighing the required raw materials according to the weight parts of the components, and mixing and granulating the modified coffee grounds, the polylactic acid, the poly adipic acid/butylene terephthalate, the nucleating agent, the crystallization promoter, the melt strength enhancer and the compatibilizer in granulation equipment at 140 ℃ to obtain coffee grounds modified plastic master batches; mixing the obtained coffee grounds modified plastic master batch with the weighed lubricant, anti-aging agent, antioxidant and anti-ultraviolet agent; and then extruding the mixture on a rattan imitation machine through a flat die to form flat biodegradable rattan imitation containing coffee grounds.
Example 8
A biodegradable coffee grounds rattan-like material is prepared from the following raw materials in parts by weight: 30 parts of modified coffee grounds, 40 parts of polylactic acid (PLA), 10 parts of poly (butylene adipate/terephthalate) (PBAT), 5 parts of melt strength enhancer, 5 parts of nucleating agent, 1 part of crystallization promoter, 5 parts of compatibilizer, 2 parts of lubricant, 0.6 part of age inhibitor, 0.6 part of antioxidant and 0.6 part of ultraviolet resistant agent; the compatibilizer is ethylene-n-butyl acrylate-glycidyl methacrylate triblock copolymer (E-BA-GMA), the melt strength reinforcing agent is an epoxy functional group-containing material and acrylic acid series star-shaped copolymer with the weight ratio of 1:1, the lubricant is vinyl bis stearamide, low molecular weight polyethylene wax and stearic acid with the weight ratio of 1:1:1, and the antioxidant is hindered phenol antioxidant and phosphite antioxidant with the weight ratio of 2: 1. More specifically, weighing the required raw materials according to the weight parts of the components, and mixing and granulating the modified coffee grounds, the polylactic acid, the poly adipic acid/butylene terephthalate, the nucleating agent, the crystallization promoter, the melt strength enhancer and the compatibilizer in granulation equipment at 140 ℃ to obtain coffee grounds modified plastic master batches; mixing the obtained coffee grounds modified plastic master batch with the weighed lubricant, anti-aging agent, antioxidant and anti-ultraviolet agent; and then extruding the mixture on a rattan imitation machine through a flat die to form flat biodegradable rattan imitation containing coffee grounds.
Example 9
A biodegradable coffee grounds rattan-like material is prepared from the following raw materials in parts by weight: 30 parts of modified coffee grounds, 40 parts of polylactic acid (PLA), 10 parts of poly (butylene adipate/terephthalate) (PBAT), 5 parts of melt strength enhancer, 5 parts of nucleating agent, 0.5 part of crystallization promoter, 5 parts of compatibilizer, 2 parts of lubricant, 0.6 part of age inhibitor, 0.6 part of antioxidant and 0.6 part of ultraviolet resistant agent; the compatibilizer is ethylene-n-butyl acrylate-glycidyl methacrylate triblock copolymer (E-BA-GMA), the melt strength reinforcing agent is an epoxy functional group-containing material and acrylic acid series star-shaped copolymer with the weight ratio of 1:1, the lubricant is vinyl bis stearamide, low molecular weight polyethylene wax and stearic acid with the weight ratio of 1:1:1, and the antioxidant is hindered phenol antioxidant and phosphite antioxidant with the weight ratio of 2: 1. More specifically, weighing the required raw materials according to the weight parts of the components, and mixing and granulating the modified coffee grounds, the polylactic acid, the poly adipic acid/butylene terephthalate, the nucleating agent, the crystallization promoter, the melt strength enhancer and the compatibilizer in granulation equipment at 140 ℃ to obtain coffee grounds modified plastic master batches; mixing the obtained coffee grounds modified plastic master batch with the weighed lubricant, anti-aging agent, antioxidant and anti-ultraviolet agent; and then extruding the mixture on a rattan imitation machine through a flat die to form flat biodegradable rattan imitation containing coffee grounds.
Example 10
A biodegradable coffee grounds rattan-like material is prepared from the following raw materials in parts by weight: 30 parts of modified coffee grounds, 40 parts of polylactic acid (PLA), 10 parts of poly (butylene adipate/terephthalate) (PBAT), 5 parts of melt strength enhancer, 5 parts of nucleating agent, 1 part of crystallization promoter, 2 parts of compatibilizer, 2 parts of lubricant, 0.6 part of age inhibitor, 0.6 part of antioxidant and 0.6 part of ultraviolet resistant agent; the compatibilizer is ethylene-n-butyl acrylate-glycidyl methacrylate triblock copolymer (E-BA-GMA), the melt strength reinforcing agent is an epoxy functional group-containing material and acrylic acid series star-shaped copolymer with the weight ratio of 1:1, the lubricant is vinyl bis stearamide, low molecular weight polyethylene wax and stearic acid with the weight ratio of 1:1:1, and the antioxidant is hindered phenol antioxidant and phosphite antioxidant with the weight ratio of 2: 1. More specifically, weighing the required raw materials according to the weight parts of the components, and mixing and granulating the modified coffee grounds, the polylactic acid, the poly adipic acid/butylene terephthalate, the nucleating agent, the crystallization promoter, the melt strength enhancer and the compatibilizer in granulation equipment at 140 ℃ to obtain coffee grounds modified plastic master batches; mixing the obtained coffee grounds modified plastic master batch with the weighed lubricant, anti-aging agent, antioxidant and anti-ultraviolet agent; and then extruding the mixture on a rattan imitation machine through a flat die to form flat biodegradable rattan imitation containing coffee grounds.
Example 11
A biodegradable coffee grounds rattan-like material is prepared from the following raw materials in parts by weight: 30 parts of modified coffee grounds, 40 parts of polylactic acid (PLA), 10 parts of poly (butylene adipate/terephthalate) (PBAT), 5 parts of melt strength enhancer, 5 parts of nucleating agent, 1 part of crystallization promoter, 5 parts of compatibilizer, 2 parts of lubricant, 0.6 part of age inhibitor, 0.6 part of antioxidant and 0.6 part of ultraviolet resistant agent; the compatibilizer is hyperbranched triazine, the melt strength reinforcing agent is a star-shaped copolymer containing an epoxy functional group material and acrylic acid series with the weight ratio of 1:1, the lubricant is vinyl bis stearamide, low molecular weight polyethylene wax and stearic acid with the weight ratio of 1:1:1, and the antioxidant is hindered phenol antioxidant and phosphite antioxidant with the weight ratio of 2: 1. More specifically, weighing the required raw materials according to the weight parts of the components, and mixing and granulating the modified coffee grounds, the polylactic acid, the poly adipic acid/butylene terephthalate, the nucleating agent, the crystallization promoter, the melt strength enhancer and the compatibilizer in granulation equipment at 140 ℃ to obtain coffee grounds modified plastic master batches; mixing the obtained coffee grounds modified plastic master batch with the weighed lubricant, anti-aging agent, antioxidant and anti-ultraviolet agent; and then extruding the mixture on a rattan imitation machine through a flat die to form flat biodegradable rattan imitation containing coffee grounds.
Example 12
A biodegradable coffee grounds rattan-like material is prepared from the following raw materials in parts by weight: 30 parts of modified coffee grounds, 40 parts of polylactic acid (PLA), 10 parts of poly (butylene adipate/terephthalate) (PBAT), 2 parts of melt strength enhancer, 5 parts of nucleating agent, 1 part of crystallization promoter, 5 parts of compatibilizer, 2 parts of lubricant, 0.6 part of age inhibitor, 0.6 part of antioxidant and 0.6 part of ultraviolet resistant agent; the compatibilizer is ethylene-n-butyl acrylate-glycidyl methacrylate triblock copolymer (E-BA-GMA), the melt strength reinforcing agent is an epoxy functional group-containing material and acrylic acid series star-shaped copolymer with the weight ratio of 1:1, the lubricant is vinyl bis stearamide, low molecular weight polyethylene wax and stearic acid with the weight ratio of 1:1:1, and the antioxidant is hindered phenol antioxidant and phosphite antioxidant with the weight ratio of 2: 1. More specifically, weighing the required raw materials according to the weight parts of the components, and mixing and granulating the modified coffee grounds, the polylactic acid, the poly adipic acid/butylene terephthalate, the nucleating agent, the crystallization promoter, the melt strength enhancer and the compatibilizer in granulation equipment at 140 ℃ to obtain coffee grounds modified plastic master batches; mixing the obtained coffee grounds modified plastic master batch with the weighed lubricant, anti-aging agent, antioxidant and anti-ultraviolet agent; then the mixture is extruded out of flat biodegradable rattan-like strips containing coffee grounds on a rattan-like machine through a flat die
Example 13
A biodegradable coffee grounds rattan-like material is prepared from the following raw materials in parts by weight: 30 parts of modified coffee grounds, 40 parts of polylactic acid (PLA), 10 parts of poly (butylene adipate/terephthalate) (PBAT), 5 parts of melt strength enhancer, 5 parts of nucleating agent, 1 part of crystallization promoter, 5 parts of compatibilizer, 2 parts of lubricant, 0.6 part of age inhibitor, 0.6 part of antioxidant and 0.6 part of ultraviolet resistant agent; the compatibilizer is ethylene-n-butyl acrylate-glycidyl methacrylate triblock copolymer (E-BA-GMA), the melt strength reinforcing agent contains an epoxy functional material, the lubricant is vinyl bis stearamide, low molecular weight polyethylene wax and stearic acid in a weight ratio of 1:1:1, and the antioxidant is hindered phenol antioxidant and phosphite antioxidant in a weight ratio of 2: 1. More specifically, weighing the required raw materials according to the weight parts of the components, and mixing and granulating the modified coffee grounds, the polylactic acid, the poly adipic acid/butylene terephthalate, the nucleating agent, the crystallization promoter, the melt strength enhancer and the compatibilizer in granulation equipment at 140 ℃ to obtain coffee grounds modified plastic master batches; mixing the obtained coffee grounds modified plastic master batch with the weighed lubricant, anti-aging agent, antioxidant and anti-ultraviolet agent; and then extruding the mixture on a rattan imitation machine through a flat die to form flat biodegradable rattan imitation containing coffee grounds.
Example 14
A biodegradable coffee grounds rattan-like material is prepared from the following raw materials in parts by weight: 30 parts of modified coffee grounds, 40 parts of polylactic acid (PLA), 10 parts of poly (butylene adipate/terephthalate) (PBAT), 5 parts of melt strength enhancer, 5 parts of nucleating agent, 1 part of crystallization promoter, 5 parts of compatibilizer, 2 parts of lubricant, 0.6 part of age inhibitor, 0.6 part of antioxidant and 0.6 part of ultraviolet resistant agent; the compatibilizer is ethylene-n-butyl acrylate-glycidyl methacrylate triblock copolymer (E-BA-GMA), the melt strength enhancer is acrylic acid series star-shaped copolymer, the lubricant is vinyl bis stearamide, low molecular weight polyethylene wax and stearic acid in a weight ratio of 1:1:1, and the antioxidant is hindered phenol antioxidant and phosphite antioxidant in a weight ratio of 2: 1. More specifically, weighing the required raw materials according to the weight parts of the components, and mixing and granulating the modified coffee grounds, the polylactic acid, the poly adipic acid/butylene terephthalate, the nucleating agent, the crystallization promoter, the melt strength enhancer and the compatibilizer in granulation equipment at 140 ℃ to obtain coffee grounds modified plastic master batches; mixing the obtained coffee grounds modified plastic master batch with the weighed lubricant, anti-aging agent, antioxidant and anti-ultraviolet agent; then the mixture is extruded out of flat biodegradable rattan-like strips containing coffee grounds on a rattan-like machine through a flat die
Example 15
A biodegradable coffee grounds rattan-like material is prepared from the following raw materials in parts by weight: 30 parts of modified coffee grounds, 40 parts of polylactic acid (PLA), 10 parts of poly (butylene adipate/terephthalate) (PBAT), 5 parts of melt strength enhancer, 5 parts of nucleating agent, 1 part of crystallization promoter, 5 parts of compatibilizer, 0.5 part of lubricant, 0.6 part of age inhibitor, 0.6 part of antioxidant and 0.6 part of ultraviolet resistant agent; the compatibilizer is ethylene-n-butyl acrylate-glycidyl methacrylate triblock copolymer (E-BA-GMA), the melt strength reinforcing agent is an epoxy functional group-containing material and acrylic acid series star-shaped copolymer with the weight ratio of 1:1, the lubricant is vinyl bis stearamide, low molecular weight polyethylene wax and stearic acid with the weight ratio of 1:1:1, and the antioxidant is hindered phenol antioxidant and phosphite antioxidant with the weight ratio of 2: 1. More specifically, weighing the required raw materials according to the weight parts of the components, and mixing and granulating the modified coffee grounds, the polylactic acid, the poly adipic acid/butylene terephthalate, the nucleating agent, the crystallization promoter, the melt strength enhancer and the compatibilizer in granulation equipment at 140 ℃ to obtain coffee grounds modified plastic master batches; mixing the obtained coffee grounds modified plastic master batch with the weighed lubricant, anti-aging agent, antioxidant and anti-ultraviolet agent; and then extruding the mixture on a rattan imitation machine through a flat die to form flat biodegradable rattan imitation containing coffee grounds.
Example 16
A biodegradable coffee grounds rattan-like material is prepared from the following raw materials in parts by weight: 30 parts of modified coffee grounds, 40 parts of polylactic acid (PLA), 10 parts of poly (butylene adipate/terephthalate) (PBAT), 5 parts of melt strength enhancer, 5 parts of nucleating agent, 1 part of crystallization promoter, 5 parts of compatibilizer, 2 parts of lubricant, 0.6 part of age inhibitor, 0.6 part of antioxidant and 0.6 part of ultraviolet resistant agent; the compatibilizer is ethylene-n-butyl acrylate-glycidyl methacrylate triblock copolymer (E-BA-GMA), the melt strength reinforcing agent is an epoxy functional group-containing material and acrylic acid series star-shaped copolymer with the weight ratio of 1:1, the lubricant is ethylene bis stearamide and low molecular weight polyethylene wax with the weight ratio of 1:1, and the antioxidant is hindered phenol antioxidant and phosphite antioxidant with the weight ratio of 2: 1. More specifically, weighing the required raw materials according to the weight parts of the components, and mixing and granulating the modified coffee grounds, the polylactic acid, the poly adipic acid/butylene terephthalate, the nucleating agent, the crystallization promoter, the melt strength enhancer and the compatibilizer in granulation equipment at 140 ℃ to obtain coffee grounds modified plastic master batches; mixing the obtained coffee grounds modified plastic master batch with the weighed lubricant, anti-aging agent, antioxidant and anti-ultraviolet agent; and then extruding the mixture on a rattan imitation machine through a flat die to form flat biodegradable rattan imitation containing coffee grounds.
Example 17
A biodegradable coffee grounds rattan-like material is prepared from the following raw materials in parts by weight: 30 parts of modified coffee grounds, 40 parts of polylactic acid (PLA), 10 parts of poly (butylene adipate/terephthalate) (PBAT), 5 parts of melt strength enhancer, 5 parts of nucleating agent, 1 part of crystallization promoter, 5 parts of compatibilizer, 2 parts of lubricant, 0.1 part of age inhibitor, 0.6 part of antioxidant and 0.1 part of ultraviolet resistant agent; the compatibilizer is ethylene-n-butyl acrylate-glycidyl methacrylate triblock copolymer (E-BA-GMA), the melt strength reinforcing agent is an epoxy functional group-containing material and acrylic acid series star-shaped copolymer with the weight ratio of 1:1, the lubricant is vinyl bis stearamide, low molecular weight polyethylene wax and stearic acid with the weight ratio of 1:1:1, and the antioxidant is hindered phenol antioxidant and phosphite antioxidant with the weight ratio of 2: 1. More specifically, weighing the required raw materials according to the weight parts of the components, and mixing and granulating the modified coffee grounds, the polylactic acid, the poly adipic acid/butylene terephthalate, the nucleating agent, the crystallization promoter, the melt strength enhancer and the compatibilizer in granulation equipment at 140 ℃ to obtain coffee grounds modified plastic master batches; mixing the obtained coffee grounds modified plastic master batch with the weighed lubricant, anti-aging agent, antioxidant and anti-ultraviolet agent; and then extruding the mixture on a rattan imitation machine through a flat die to form flat biodegradable rattan imitation containing coffee grounds.
Example 18
A biodegradable coffee grounds rattan-like material is prepared from the following raw materials in parts by weight: 30 parts of modified coffee grounds, 40 parts of polylactic acid (PLA), 10 parts of poly (butylene adipate/terephthalate) (PBAT), 5 parts of melt strength enhancer, 5 parts of nucleating agent, 1 part of crystallization promoter, 5 parts of compatibilizer, 2 parts of lubricant, 0.1 part of age inhibitor, 0.1 part of antioxidant and 0.1 part of ultraviolet resistant agent; the compatibilizer is ethylene-n-butyl acrylate-glycidyl methacrylate triblock copolymer (E-BA-GMA), the melt strength reinforcing agent is an epoxy functional group-containing material and acrylic acid series star-shaped copolymer with the weight ratio of 1:1, the lubricant is vinyl bis stearamide, low molecular weight polyethylene wax and stearic acid with the weight ratio of 1:1:1, and the antioxidant is hindered phenol antioxidant and phosphite antioxidant with the weight ratio of 2: 1. More specifically, weighing the required raw materials according to the weight parts of the components, and mixing and granulating the modified coffee grounds, the polylactic acid, the poly adipic acid/butylene terephthalate, the nucleating agent, the crystallization promoter, the melt strength enhancer and the compatibilizer in granulation equipment at 140 ℃ to obtain coffee grounds modified plastic master batches; mixing the obtained coffee grounds modified plastic master batch with the weighed lubricant, anti-aging agent, antioxidant and anti-ultraviolet agent; and then extruding the mixture on a rattan imitation machine through a flat die to form flat biodegradable rattan imitation containing coffee grounds.
Example 19
A biodegradable coffee grounds rattan-like material is prepared from the following raw materials in parts by weight: 30 parts of modified coffee grounds, 40 parts of polylactic acid (PLA), 10 parts of poly (butylene adipate/terephthalate) (PBAT), 5 parts of melt strength enhancer, 5 parts of nucleating agent, 1 part of crystallization promoter, 5 parts of compatibilizer, 2 parts of lubricant, 0.1 part of age inhibitor, 0.1 part of antioxidant and 0.1 part of ultraviolet resistant agent; the compatibilizer is ethylene-n-butyl acrylate-glycidyl methacrylate triblock copolymer (E-BA-GMA), the melt strength reinforcing agent is an epoxy functional group-containing material and acrylic acid series star-shaped copolymer with the weight ratio of 1:1, the lubricant is vinyl bis stearamide, low molecular weight polyethylene wax and stearic acid with the weight ratio of 1:1:1, the antioxidant is hindered phenol antioxidant, and the hindered phenol antioxidant is antioxidant 1010. More specifically, weighing the required raw materials according to the weight parts of the components, and mixing and granulating the modified coffee grounds, the polylactic acid, the poly adipic acid/butylene terephthalate, the nucleating agent, the crystallization promoter, the melt strength enhancer and the compatibilizer in granulation equipment at 140 ℃ to obtain coffee grounds modified plastic master batches; mixing the obtained coffee grounds modified plastic master batch with the weighed lubricant, anti-aging agent, antioxidant and anti-ultraviolet agent; and then extruding the mixture on a rattan imitation machine through a flat die to form flat biodegradable rattan imitation containing coffee grounds.
Example 20
A biodegradable coffee grounds rattan-like material is prepared from the following raw materials in parts by weight: 30 parts of modified coffee grounds, 40 parts of polylactic acid (PLA), 10 parts of poly (butylene adipate/terephthalate) (PBAT), 5 parts of melt strength enhancer, 5 parts of nucleating agent, 1 part of crystallization promoter, 5 parts of compatibilizer, 2 parts of lubricant, 0.1 part of age inhibitor, 0.1 part of antioxidant and 0.1 part of ultraviolet resistant agent; the compatibilizer is ethylene-n-butyl acrylate-glycidyl methacrylate triblock copolymer (E-BA-GMA), the melt strength reinforcing agent is a star-shaped copolymer containing an epoxy functional group material and acrylic acid series with the weight ratio of 1:1, the lubricant is ethylene bis stearamide, low molecular weight polyethylene wax and stearic acid with the weight ratio of 1:1:1, the antioxidant is phosphite antioxidant, and the phosphite antioxidant is antioxidant 168. More specifically, weighing the required raw materials according to the weight parts of the components, and mixing and granulating the modified coffee grounds, the polylactic acid, the poly adipic acid/butylene terephthalate, the nucleating agent, the crystallization promoter, the melt strength enhancer and the compatibilizer in granulation equipment at 140 ℃ to obtain coffee grounds modified plastic master batches; mixing the obtained coffee grounds modified plastic master batch with the weighed lubricant, anti-aging agent, antioxidant and anti-ultraviolet agent; and then extruding the mixture on a rattan imitation machine through a flat die to form flat biodegradable rattan imitation containing coffee grounds.
Example 21
A biodegradable coffee grounds rattan-like material is prepared from the following raw materials in parts by weight: 30 parts of modified coffee grounds, 40 parts of polylactic acid (PLA), 10 parts of poly (butylene adipate/terephthalate) (PBAT), 5 parts of melt strength enhancer, 5 parts of nucleating agent, 1 part of crystallization promoter, 5 parts of compatibilizer, 2 parts of lubricant, 0.1 part of age inhibitor, 0.1 part of antioxidant and 0.1 part of ultraviolet resistant agent; the compatibilizer is ethylene-n-butyl acrylate-glycidyl methacrylate triblock copolymer (E-BA-GMA), the melt strength reinforcing agent is an epoxy functional group-containing material and acrylic acid series star-shaped copolymer with the weight ratio of 1:1, the lubricant is vinyl bis stearamide, low molecular weight polyethylene wax and stearic acid with the weight ratio of 1:1:1, and the antioxidant is hindered phenol antioxidant and phosphite antioxidant with the weight ratio of 2: 1. More specifically, weighing the required raw materials according to the weight parts of the components, and mixing and granulating the modified coffee grounds, the polylactic acid, the poly adipic acid/butylene terephthalate, the nucleating agent, the crystallization promoter, the melt strength enhancer and the compatibilizer in granulation equipment at the granulation temperature of 200 ℃ to obtain coffee grounds modified plastic master batches; mixing the obtained coffee grounds modified plastic master batch with the weighed lubricant, anti-aging agent, antioxidant and anti-ultraviolet agent; and then extruding the mixture on a rattan imitation machine through a flat die to form flat biodegradable rattan imitation containing coffee grounds.
Example 22
A biodegradable coffee grounds rattan-like material is prepared from the following raw materials in parts by weight: 30 parts of modified coffee grounds, 40 parts of polylactic acid (PLA), 10 parts of poly (butylene adipate/terephthalate) (PBAT), 5 parts of melt strength enhancer, 5 parts of nucleating agent, 1 part of crystallization promoter, 5 parts of compatibilizer, 2 parts of lubricant, 0.1 part of age inhibitor, 0.1 part of antioxidant and 0.1 part of ultraviolet resistant agent; the compatibilizer is ethylene-n-butyl acrylate-glycidyl methacrylate triblock copolymer (E-BA-GMA), the melt strength reinforcing agent is an epoxy functional group-containing material and acrylic acid series star-shaped copolymer with the weight ratio of 1:1, the lubricant is vinyl bis stearamide, low molecular weight polyethylene wax and stearic acid with the weight ratio of 1:1:1, and the antioxidant is hindered phenol antioxidant and phosphite antioxidant with the weight ratio of 2: 1. More specifically, weighing the required raw materials according to the weight parts of the components, and mixing and granulating the modified coffee grounds, the polylactic acid, the poly adipic acid/butylene terephthalate, the nucleating agent, the crystallization promoter, the melt strength enhancer and the compatibilizer in granulation equipment at the granulation temperature of 240 ℃ to obtain coffee grounds modified plastic master batches; mixing the obtained coffee grounds modified plastic master batch with the weighed lubricant, anti-aging agent, antioxidant and anti-ultraviolet agent; and then extruding the mixture on a rattan imitation machine through a flat die to form flat biodegradable rattan imitation containing coffee grounds.
Example 23
The modified coffee grounds used in example 23 of the present invention were obtained by: crushing coffee grounds to 100 meshes, and drying until the moisture content is 2%; heating and drying the coffee grounds, heating to 100 ℃, keeping the temperature for more than 15 minutes, and then adding a silane coupling agent KH-550, wherein the weight part ratio of the coffee grounds to the coupling agent is 20: 1; after thorough mixing, the mixture was kept at 120 ℃ for 15 minutes to obtain modified coffee grounds.
A biodegradable coffee grounds rattan-like material is prepared from the following raw materials in parts by weight: 30 parts of modified coffee grounds, 40 parts of polylactic acid (PLA), 10 parts of poly (butylene adipate/terephthalate) (PBAT), 5 parts of melt strength enhancer, 5 parts of nucleating agent, 1 part of crystallization promoter, 5 parts of compatibilizer, 2 parts of lubricant, 0.1 part of age inhibitor, 0.1 part of antioxidant and 0.1 part of ultraviolet resistant agent; the compatibilizer is ethylene-n-butyl acrylate-glycidyl methacrylate triblock copolymer (E-BA-GMA), the melt strength reinforcing agent is an epoxy functional group-containing material and acrylic acid series star-shaped copolymer with the weight ratio of 1:1, the lubricant is vinyl bis stearamide, low molecular weight polyethylene wax and stearic acid with the weight ratio of 1:1:1, and the antioxidant is hindered phenol antioxidant and phosphite antioxidant with the weight ratio of 2: 1. More specifically, weighing the required raw materials according to the weight parts of the components, and mixing and granulating the modified coffee grounds, the polylactic acid, the poly adipic acid/butylene terephthalate, the nucleating agent, the crystallization promoter, the melt strength enhancer and the compatibilizer in granulation equipment at the granulation temperature of 200 ℃ to obtain coffee grounds modified plastic master batches; mixing the obtained coffee grounds modified plastic master batch with the weighed lubricant, anti-aging agent, antioxidant and anti-ultraviolet agent; and then extruding the mixture on a rattan imitation machine through a flat die to form flat biodegradable rattan imitation containing coffee grounds.
Example 24
The modified coffee grounds used in example 24 of the present invention were obtained by: crushing coffee grounds to 200 meshes, and drying until the moisture content is 2%; heating and drying the coffee grounds, heating to 100 ℃, keeping the temperature for more than 15 minutes, and then adding a silane coupling agent KH-550, wherein the weight part ratio of the coffee grounds to the coupling agent is 20: 1; after thorough mixing, the mixture was kept at 120 ℃ for 15 minutes to obtain modified coffee grounds.
A biodegradable coffee grounds rattan-like material is prepared from the following raw materials in parts by weight: 30 parts of modified coffee grounds, 40 parts of polylactic acid (PLA), 10 parts of poly (butylene adipate/terephthalate) (PBAT), 5 parts of melt strength enhancer, 5 parts of nucleating agent, 1 part of crystallization promoter, 5 parts of compatibilizer, 2 parts of lubricant, 0.1 part of age inhibitor, 0.1 part of antioxidant and 0.1 part of ultraviolet resistant agent; the compatibilizer is ethylene-n-butyl acrylate-glycidyl methacrylate triblock copolymer (E-BA-GMA), the melt strength reinforcing agent is an epoxy functional group-containing material and acrylic acid series star-shaped copolymer with the weight ratio of 1:1, the lubricant is vinyl bis stearamide, low molecular weight polyethylene wax and stearic acid with the weight ratio of 1:1:1, and the antioxidant is hindered phenol antioxidant and phosphite antioxidant with the weight ratio of 2: 1. More specifically, weighing the required raw materials according to the weight parts of the components, and mixing and granulating the modified coffee grounds, the polylactic acid, the poly adipic acid/butylene terephthalate, the nucleating agent, the crystallization promoter, the melt strength enhancer and the compatibilizer in granulation equipment at the granulation temperature of 200 ℃ to obtain coffee grounds modified plastic master batches; mixing the obtained coffee grounds modified plastic master batch with the weighed lubricant, anti-aging agent, antioxidant and anti-ultraviolet agent; and then extruding the mixture on a rattan imitation machine through a flat die to form flat biodegradable rattan imitation containing coffee grounds.
The performance test of the rattan-like material prepared by weighing the required raw materials in parts by weight of different components in each example was carried out, and the conclusion is as follows:
as can be seen from the above table through examples 1-3, as the addition amount of the modified coffee grounds is increased, the woody texture of the final product is obviously enhanced, but the tensile strength and the elongation at break are both reduced; from the results of examples 2, 5 and 6, it can be seen that the increase of poly (butylene adipate terephthalate) (PBAT) reduces the tensile strength of the finally obtained rattan-like material, and the elongation at break is obviously improved; the research results of the examples 2, 7 and 8 show that the material becomes brittle and the impact resistance is reduced due to the overhigh content of the talcum powder; the results of example 4 and examples 8 to 22 show that nucleating agents, crystallization promoters, melt strength enhancers, compatibilizers, lubricants, anti-aging agents, antioxidants, anti-ultraviolet agents and granulation temperatures have a slight influence on the tensile strength and elongation at break of the finally obtained rattan-like material, but do not affect the use properties thereof; the comparison of the research results of the examples 23 and 24 shows that the mesh number of the modified coffee grounds has a certain relation with the mechanical properties of the prepared rattan-like material, and the larger the mesh number is, the more beneficial the mechanical properties of the rattan-like material are.
In conclusion, due to the addition of the modified coffee grounds, the polylactic acid rattan-imitated material has the characteristic of soft texture of natural rattans, has the tensile strength and folding strength of polyethylene rattans, is rich in color, durable and easy to clean, solves the problem that the coffee grounds can only be used in low-order application, improves the using amount of the coffee grounds, and does not influence the performance of the rattan-imitated material of a final product.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A biodegradable coffee ground rattan-like material is characterized in that: the biodegradable coffee ground rattan-imitated material is prepared from the following raw materials in parts by weight: polylactic acid: 40-50 parts; poly (butylene adipate/terephthalate): 5-15 parts; modified coffee grounds: 20-40 parts; nucleating agent: 5-15 parts; crystallization accelerator: 0.5-1 part; compatibilizer: 2-5 parts; melt strength enhancer: 0.1-5 parts; lubricant: 0.5-2 parts; anti-aging agent: 0.1-0.6 part; antioxidant: 0.1-0.6 part; anti-ultraviolet agent: 0.1 to 0.6 portion.
2. The biodegradable coffee grounds rattan-like material according to claim 1, which is characterized in that: the modified coffee grounds are obtained by the following treatment: crushing coffee grounds to 40-200 meshes, and drying until the water content is 1.5% -3%; after drying the coffee grounds, heating to 70-150 ℃, keeping the temperature for more than 10 minutes, and then adding a coupling agent; fully mixing, and keeping at 80-180 ℃ for more than 10 minutes under the stirring condition to obtain the modified coffee grounds; the weight portion ratio of the coffee grounds to the coupling agent is 20: 1.
3. The biodegradable coffee grounds rattan-like material according to claim 2, which is characterized in that: the coupling agent adopts a silane coupling agent KH-550.
4. A biodegradable coffee grounds rattan-like material according to claim 3, characterized in that: the nucleating agent is talcum powder, and the fineness of the talcum powder is 1250-5000 meshes; the crystallization promoter is polyethylene glycol, and the molecular weight of the polyethylene glycol is 6000g/mol and is 1000-one.
5. A biodegradable coffee grounds rattan-like material according to claim 3, characterized in that: the compatibilizer adopts ethylene-n-butyl acrylate-glycidyl methacrylate triblock copolymer or hyperbranched triazine.
6. A biodegradable coffee grounds rattan-like material according to claim 3, characterized in that: the melt strength reinforcing agent is one or more compounds of epoxy functional group-containing materials and acrylic acid series star-shaped copolymers, wherein the functional number of the epoxy functional group is controlled to be 9-20.
7. A biodegradable coffee grounds rattan-like material according to claim 3, characterized in that: the lubricant is one or more of vinyl bis stearamide, low molecular weight polyethylene wax, erucamide and stearic acid.
8. A biodegradable coffee grounds rattan-like material according to claim 3, characterized in that: the antioxidant is one or more of hindered phenol antioxidant and phosphite antioxidant; the hindered phenol antioxidant is selected from one or more of antioxidant 1010, antioxidant 1070 and antioxidant 1076; the phosphite antioxidant is one or two selected from antioxidant 168 and antioxidant 626; the ultraviolet resistant agent is UV-531.
9. The biodegradable coffee grounds rattan-like material according to claim 1, which is characterized in that: the biodegradable rattan-like strip is round rattan or flat rattan.
10. A method for preparing a biodegradable coffee grounds rattan-like material according to any one of claims 1-9, comprising the steps of: firstly, mixing and granulating the obtained modified coffee grounds with polylactic acid, poly (butylene adipate)/terephthalate, a nucleating agent, a crystallization promoter, a melt strength enhancer and a compatibilizer in granulation equipment at the granulation temperature of 140-240 ℃ to obtain coffee grounds modified plastic master batches; mixing the obtained coffee grounds modified plastic master batch with a lubricant, an anti-aging agent, an antioxidant and an anti-ultraviolet agent, and extruding and molding the mixture on a rattan-imitating machine to obtain the biodegradable rattan-imitating strip containing the coffee grounds.
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Application publication date: 20200124 |