CN113861926A - Bi-component polyurethane adhesive and coffee grounds composition and preparation method thereof - Google Patents
Bi-component polyurethane adhesive and coffee grounds composition and preparation method thereof Download PDFInfo
- Publication number
- CN113861926A CN113861926A CN202111395699.2A CN202111395699A CN113861926A CN 113861926 A CN113861926 A CN 113861926A CN 202111395699 A CN202111395699 A CN 202111395699A CN 113861926 A CN113861926 A CN 113861926A
- Authority
- CN
- China
- Prior art keywords
- component
- coffee grounds
- polyurethane adhesive
- component polyurethane
- composition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000853 adhesive Substances 0.000 title claims abstract description 61
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 61
- 239000004814 polyurethane Substances 0.000 title claims abstract description 61
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 61
- 239000000203 mixture Substances 0.000 title claims abstract description 39
- 238000002360 preparation method Methods 0.000 title claims description 13
- 229920005862 polyol Polymers 0.000 claims abstract description 15
- 150000003077 polyols Chemical class 0.000 claims abstract description 15
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 14
- 239000004359 castor oil Substances 0.000 claims abstract description 14
- 235000019438 castor oil Nutrition 0.000 claims abstract description 14
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims abstract description 14
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 11
- 230000002745 absorbent Effects 0.000 claims abstract description 11
- 239000002250 absorbent Substances 0.000 claims abstract description 11
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 11
- 229920000570 polyether Polymers 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 8
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 5
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical group C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 claims abstract description 3
- 238000001035 drying Methods 0.000 claims description 18
- 238000000227 grinding Methods 0.000 claims description 18
- 238000002156 mixing Methods 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 18
- 239000006185 dispersion Substances 0.000 claims description 12
- 239000003963 antioxidant agent Substances 0.000 claims description 10
- 230000003078 antioxidant effect Effects 0.000 claims description 10
- 230000004913 activation Effects 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000011261 inert gas Substances 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 239000002808 molecular sieve Substances 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 238000012216 screening Methods 0.000 claims description 6
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 5
- 229920001451 polypropylene glycol Polymers 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- 239000003381 stabilizer Substances 0.000 claims description 4
- 239000012745 toughening agent Substances 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 2
- 229920001744 Polyaldehyde Polymers 0.000 claims description 2
- 239000006229 carbon black Substances 0.000 claims description 2
- 239000002134 carbon nanofiber Substances 0.000 claims description 2
- 239000002041 carbon nanotube Substances 0.000 claims description 2
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 2
- 239000007822 coupling agent Substances 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 2
- 229910021392 nanocarbon Inorganic materials 0.000 claims description 2
- 239000002113 nanodiamond Substances 0.000 claims description 2
- 150000001282 organosilanes Chemical group 0.000 claims description 2
- 150000008301 phosphite esters Chemical class 0.000 claims description 2
- 239000000049 pigment Substances 0.000 claims description 2
- 239000003973 paint Substances 0.000 claims 1
- 239000002131 composite material Substances 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000012986 modification Methods 0.000 abstract description 5
- 230000004048 modification Effects 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 2
- 239000003822 epoxy resin Substances 0.000 description 6
- 229920000647 polyepoxide Polymers 0.000 description 6
- 229920001169 thermoplastic Polymers 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000533293 Sesbania emerus Species 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 239000002551 biofuel Substances 0.000 description 1
- 239000002781 deodorant agent Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
- C09J175/08—Polyurethanes from polyethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/36—Hydroxylated esters of higher fatty acids
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a double-component polyurethane adhesive and coffee grounds composition, which comprises the following components in percentage by weight: 20 to 30 percent of coffee grounds and 70 to 80 percent of bi-component polyurethane adhesive; the double-component polyurethane adhesive consists of a component A and a component B, wherein the mass ratio of the component A to the component B is (1-5): 1, the component A comprises the following components in percentage by mass: 20-40% of castor oil, 10-20% of polyether polyol, 3-8% of water absorbent, 30-60% of heavy calcium carbonate and 10-20% of auxiliary agent, wherein the component B is crude MDI. The invention overcomes the defects of the prior art, does not need to carry out surface modification treatment on coffee grounds, is mixed with a bi-component polyurethane adhesive, stirred, defoamed and solidified into a composite material at normal temperature, and has the advantages of simple process flow, low energy consumption, low cost, renewable most of raw materials and the like.
Description
Technical Field
The invention relates to the application field of a bi-component polyurethane adhesive, and particularly belongs to a bi-component polyurethane adhesive, a coffee grounds composition and a preparation method thereof.
Background
Coffee-based products are second only in trade in the world to petroleum and its derivatives, but coffee beans are a natural renewable resource. The consumption of coffee has become the top of the world's three major beverages, producing 0.9 kg of coffee grounds per 1 kg of coffee produced. The yield of the waste coffee grounds is huge, and the direct discarding can cause environmental pollution and resource waste. The recycling of coffee grounds has become a research hotspot at present. The researches of researchers in recent years have led to the recycling of coffee grounds, which are used in many applications, such as adsorption deodorants, composite biofuels, plant fertilizers, composite plastics, and the like. Coffee grounds are used as a filler, other matrix resins are mixed to prepare products with various shapes, and the coffee grounds have the advantages of coffee fragrance, antibiosis, ultraviolet resistance, low cost and the like and are primarily accepted by the society.
At present, the coffee grounds resin products mainly take two-component epoxy resin (publication number: CN 112552647A) or thermoplastic polymer as a matrix (publication number: CN 112625430A, CN 113388220A), the low-temperature resistance of the two-component epoxy resin is poor, the strength of the products is greatly reduced under the low-temperature condition, the two-component epoxy resin products are hard, and one amine component of the two-component epoxy resin can emit unpleasant odor; the thermoplastic polymer composite material has complex processing process and high energy consumption, and the coffee grounds are easy to degrade and carbonize due to high temperature in the processing process.
Disclosure of Invention
The invention aims to provide a bi-component polyurethane adhesive, a coffee grounds composition and a preparation method thereof, overcomes the defects of the prior art, does not need to carry out surface modification treatment on coffee grounds, is mixed with the bi-component polyurethane adhesive, stirred, defoamed and solidified into a composite material at normal temperature, and has the advantages of simple process flow, low energy consumption, low cost, renewable most of raw materials and the like.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
a two-component polyurethane adhesive and coffee grounds composition comprises the following components in percentage by weight: 20 to 30 percent of coffee grounds and 70 to 80 percent of bi-component polyurethane adhesive;
the double-component polyurethane adhesive consists of a component A and a component B, wherein the mass ratio of the component A to the component B is (1-5): 1, the component A comprises the following components in percentage by mass: 20-40% of castor oil, 10-20% of polyether polyol, 3-8% of water absorbent, 30-60% of heavy calcium carbonate and 10-20% of auxiliary agent, wherein the component B is crude MDI.
Further, the castor oil is commercial industrial grade castor oil.
Further, the polyether polyol is one or a combination of two of 3-functionality 500-molecular-weight polypropylene oxide polyol and 3-functionality 700-molecular-weight polypropylene oxide polyol.
Further, the water absorbent is one or a combination of more of 3A type molecular sieve activation powder, 4A type molecular sieve activation powder and 5A type molecular sieve activation powder.
Further, the auxiliary agent comprises, by mass, 20-30% of a high-temperature-resistant antioxidant, 3-10% of a stabilizer, 2-6% of a toughening agent, 20-40% of a nano filler and 30-60% of a pigment.
Further, the high-temperature-resistant antioxidant is an antioxidant compounded by a hindered phenol main antioxidant and a phosphite ester auxiliary antioxidant; the stabilizer is an organosilane coupling agent KH550 or KH 560; the toughening agent is polyaldehyde resin; the nano filler is one or a composition of more than two of carbon nano tubes, carbon nano fibers, nano carbon black and nano diamonds.
Further, the preparation method of the bi-component polyurethane adhesive comprises the following steps:
step one, adding castor oil and polyether polyol into a reactor with stirring, heating and melting in an inert gas atmosphere, and maintaining the temperature at 70-90 ℃;
step two, adding the water absorbent, the heavy calcium carbonate and the auxiliary agent under the stirring condition, uniformly stirring, transferring into a vacuum dispersion machine, and carrying out vacuum dispersion for 30min at the rotating speed of 1000-1500rpm to obtain a component A;
and step three, uniformly mixing the component A and the component B according to the mass ratio to obtain the bi-component polyurethane adhesive.
The invention also discloses a preparation method of the composition of the bi-component polyurethane adhesive and the coffee grounds, which comprises the following steps:
step one, placing the recovered coffee grounds in an oven for drying;
step two, transferring the dried coffee grounds into a ball mill for grinding and screening;
step three, weighing the coffee grounds and the bi-component polyurethane adhesive according to the mass percentage, and mixing;
step four, placing the mixture into a centrifugal stirrer for further defoaming and uniformly mixing, wherein the revolution speed of the centrifugal stirrer is 300-500rpm, the rotation speed is 300-500rpm, the vacuum degree is 0.01-0.09MPa, and the temperature is 20-40 ℃;
and step five, putting the uniformly mixed composition into a mold, and curing at normal temperature to obtain the product.
Further, in the step one, the drying temperature is 70-100 ℃, and the drying time is 2-10 hours.
Further, in the second step, the coffee grounds are ground to 100-200 meshes, the grinding time is 2-6 hours, and the grinding temperature is 20-40 ℃.
Compared with the prior art, the invention has the following implementation effects:
1. the invention adopts the bi-component polyurethane adhesive taking the castor oil as the main material, the raw material is from plants, belongs to renewable resources, and simultaneously, the compatibility with the coffee grounds is good, and the special surface treatment on the coffee grounds is not needed to improve the compatibility.
2. The two-component polyurethane adhesive and the coffee grounds adopted by the invention can be cured at normal temperature, external intervention energy is not needed, the energy consumption is low, the environment is protected, and meanwhile, the coffee grounds are effectively prevented from being degraded and carbonized due to high temperature.
3. The invention further improves the low temperature resistance and high temperature resistance of the bi-component polyurethane adhesive by adding the stabilizing additive, and keeps the shape of the product under the conditions of low temperature and high temperature.
Detailed Description
The present invention will be further described with reference to the following examples, but the present invention is not limited to these examples, and any modification is within the scope of the present invention without departing from the spirit of the present invention.
Example 1
The embodiment discloses a two-component polyurethane adhesive and coffee grounds composition, which comprises the following specific components:
the embodiment also discloses a preparation method of the composition of the bi-component polyurethane adhesive and the coffee grounds, which comprises the following specific steps:
step one, adding castor oil and polyether polyol into a reactor with stirring, heating and melting in an inert gas atmosphere, and maintaining the temperature at 70 ℃;
step two, adding the water absorbent, the ground limestone and the auxiliary agent under the stirring condition, uniformly stirring, transferring into a vacuum dispersion machine, and carrying out vacuum dispersion for 30min at the rotating speed of 1000rpm to obtain a component A;
step three, uniformly mixing the component A and the component B according to the mass ratio to obtain a bi-component polyurethane adhesive for later use;
step four, placing the recovered coffee grounds in an oven for drying, wherein the drying temperature is 100 ℃, and the drying time is 8 hours;
transferring the dried coffee grounds into a ball mill for grinding and screening until the coffee grounds are ground to 100 meshes, wherein the grinding time is 2 hours, and the grinding temperature is 20 ℃;
step six, respectively weighing the coffee grounds and the bi-component polyurethane adhesive according to the mass percentage, and mixing the coffee grounds and the bi-component polyurethane adhesive until the coffee grounds are soaked into the bi-component polyurethane adhesive;
seventhly, placing the mixture into a centrifugal stirrer for further defoaming and uniformly mixing, wherein the revolution speed of the centrifugal stirrer is 400rpm, the rotation speed is 400pm, the vacuum degree is 0.01MPa, and the temperature is 23 ℃;
and step eight, placing the uniformly mixed composition into a mold, and curing at normal temperature for 48 hours to obtain the product.
Example 2
The embodiment discloses a two-component polyurethane adhesive and coffee grounds composition, which comprises the following specific components:
the embodiment also discloses a preparation method of the composition of the bi-component polyurethane adhesive and the coffee grounds, which comprises the following specific steps:
step one, adding castor oil and polyether polyol into a reactor with stirring, heating and melting in an inert gas atmosphere, and maintaining the temperature at 80 ℃;
step two, adding the water absorbent, the ground limestone and the auxiliary agent under the stirring condition, uniformly stirring, transferring into a vacuum dispersion machine, and carrying out vacuum dispersion for 30min at the rotating speed of 1000rpm to obtain a component A;
step three, uniformly mixing the component A and the component B according to the mass ratio to obtain a bi-component polyurethane adhesive for later use;
step four, placing the recovered coffee grounds in an oven for drying, wherein the drying temperature is 100 ℃, and the drying time is 8 hours;
transferring the dried coffee grounds into a ball mill for grinding and screening until the coffee grounds are ground to 100 meshes, wherein the grinding time is 2 hours, and the grinding temperature is 20 ℃;
step six, respectively weighing the coffee grounds and the bi-component polyurethane adhesive according to the mass percentage, and mixing the coffee grounds and the bi-component polyurethane adhesive until the coffee grounds are soaked into the bi-component polyurethane adhesive;
seventhly, placing the mixture into a centrifugal stirrer for further defoaming and uniformly mixing, wherein the revolution speed of the centrifugal stirrer is 300rpm, the rotation speed is 300pm, the vacuum degree is 0.05MPa, and the temperature is 35 ℃;
and step eight, placing the uniformly mixed composition into a mold, and curing at normal temperature for 48 hours to obtain the product.
Example 3
The embodiment discloses a two-component polyurethane adhesive and coffee grounds composition, which comprises the following specific components:
the embodiment also discloses a preparation method of the composition of the bi-component polyurethane adhesive and the coffee grounds, which comprises the following specific steps:
step one, adding castor oil and polyether polyol into a reactor with stirring, heating and melting in an inert gas atmosphere, and maintaining the temperature at 90 ℃;
step two, adding the water absorbent, the ground limestone and the auxiliary agent under the stirring condition, uniformly stirring, transferring into a vacuum dispersion machine, and carrying out vacuum dispersion for 30min at the rotating speed of 1500rpm to obtain a component A;
step three, uniformly mixing the component A and the component B according to the mass ratio to obtain a bi-component polyurethane adhesive for later use;
step four, placing the recovered coffee grounds in an oven for drying, wherein the drying temperature is 70 ℃, and the drying time is 10 hours;
transferring the dried coffee grounds into a ball mill for grinding and screening until the coffee grounds are 200 meshes, wherein the grinding time is 6 hours and the grinding temperature is 40 ℃;
step six, respectively weighing the coffee grounds and the bi-component polyurethane adhesive according to the mass percentage, and mixing the coffee grounds and the bi-component polyurethane adhesive until the coffee grounds are soaked into the bi-component polyurethane adhesive;
seventhly, placing the mixture into a centrifugal stirrer for further defoaming and uniformly mixing, wherein the revolution speed of the centrifugal stirrer is 500rpm, the rotation speed is 500pm, the vacuum degree is 0.09MPa, and the temperature is 40 ℃;
and step eight, placing the uniformly mixed composition into a mold, and curing at normal temperature for 48 hours to obtain the product.
Example 4
The embodiment discloses a two-component polyurethane adhesive and coffee grounds composition, which comprises the following specific components:
the embodiment also discloses a preparation method of the composition of the bi-component polyurethane adhesive and the coffee grounds, which comprises the following specific steps:
step one, adding castor oil and polyether polyol into a reactor with stirring, heating and melting in an inert gas atmosphere, and maintaining the temperature at 90 ℃;
step two, adding the water absorbent, the ground limestone and the auxiliary agent under the stirring condition, uniformly stirring, transferring into a vacuum dispersion machine, and carrying out vacuum dispersion for 30min at the rotating speed of 1500rpm to obtain a component A;
step three, uniformly mixing the component A and the component B according to the mass ratio to obtain a bi-component polyurethane adhesive for later use;
step four, placing the recovered coffee grounds in an oven for drying, wherein the drying temperature is 100 ℃, and the drying time is 8 hours;
transferring the dried coffee grounds into a ball mill for grinding and screening until the coffee grounds are ground to 100 meshes, wherein the grinding time is 4 hours and the grinding temperature is 40 ℃;
step six, respectively weighing the coffee grounds and the bi-component polyurethane adhesive according to the mass percentage, and mixing the coffee grounds and the bi-component polyurethane adhesive until the coffee grounds are soaked into the bi-component polyurethane adhesive;
seventhly, placing the mixture into a centrifugal stirrer for further defoaming and uniformly mixing, wherein the revolution speed of the centrifugal stirrer is 400rpm, the rotation speed is 400pm, the vacuum degree is 0.01MPa, and the temperature is 23 ℃;
and step eight, placing the uniformly mixed composition into a mold, and curing at normal temperature for 48 hours to obtain the product.
Detection experiment
Products were prepared according to the components and preparation methods of examples 1-4, respectively, while a control was obtained by reacting a two-component epoxy resin and a thermoplastic polymer with coffee grounds, and low temperature and high temperature tests were performed, with specific test results as follows:
| group of | Storing at-30 deg.C for 10 days | Storing at 50 deg.C for 10 days |
| Example 1 | Good surface and no crack | Good surface and no crack |
| Example 2 | Good surface and no crack | Good surface and no crack |
| Example 3 | Good surface and no crack | Good surface and no crack |
| Example 4 | Good surface and no crack | Good surface and no crack |
| Control group 1 (two-component epoxy resin) | The surface has obvious cracks | Slight surface crack |
| Control 2 (thermoplastic Polymer) | Slight surface crack | Good surface and no crack |
According to the results in the table, the coffee grounds provided by the invention have good low temperature resistance and high temperature resistance, meanwhile, the coffee grounds do not need to be subjected to surface modification treatment, are mixed with a bi-component polyurethane adhesive, stirred and defoamed, and are solidified into a composite material at normal temperature, and the coffee grounds have the advantages of simple process flow, low energy consumption, low cost, renewable most raw materials and the like.
The foregoing is merely exemplary and illustrative of the present inventive concept and various modifications, additions and substitutions of similar embodiments may be made to the specific embodiments described by those skilled in the art without departing from the inventive concept or exceeding the scope of the claims as defined in the accompanying claims.
Claims (10)
1. A two-component polyurethane adhesive and coffee grounds composition, characterized by: the paint comprises the following components in percentage by weight: 20 to 30 percent of coffee grounds and 70 to 80 percent of bi-component polyurethane adhesive;
the double-component polyurethane adhesive consists of a component A and a component B, wherein the mass ratio of the component A to the component B is (1-5): 1, the component A comprises the following components in percentage by mass: 20-40% of castor oil, 10-20% of polyether polyol, 3-8% of water absorbent, 30-60% of heavy calcium carbonate and 10-20% of auxiliary agent, wherein the component B is crude MDI.
2. The two-component polyurethane adhesive and coffee grounds composition of claim 1, wherein: the castor oil is commercial industrial grade castor oil.
3. The two-component polyurethane adhesive and coffee grounds composition of claim 1, wherein: the polyether polyol is one or the combination of two of 3-functionality 500-molecular-weight polypropylene oxide polyol and 3-functionality 700-molecular-weight polypropylene oxide polyol.
4. The two-component polyurethane adhesive and coffee grounds composition of claim 1, wherein: the water absorbent is one or a combination of more of 3A type molecular sieve activation powder, 4A type molecular sieve activation powder and 5A type molecular sieve activation powder.
5. The two-component polyurethane adhesive and coffee grounds composition of claim 1, wherein: the auxiliary agent comprises, by mass, 20-30% of a high-temperature-resistant antioxidant, 3-10% of a stabilizer, 2-6% of a toughening agent, 20-40% of a nano filler and 30-60% of a pigment.
6. The two-component polyurethane adhesive and coffee grounds composition of claim 5, wherein: the high-temperature-resistant antioxidant is an antioxidant compounded by a hindered phenol main antioxidant and a phosphite ester auxiliary antioxidant; the stabilizer is an organosilane coupling agent KH550 or KH 560; the toughening agent is polyaldehyde resin; the nano filler is one or a composition of more than two of carbon nano tubes, carbon nano fibers, nano carbon black and nano diamonds.
7. A two-component polyurethane adhesive and coffee grounds composition as claimed in any one of claims 1 to 6, wherein: the preparation method of the bi-component polyurethane adhesive comprises the following steps:
step one, adding castor oil and polyether polyol into a reactor with stirring, heating and melting in an inert gas atmosphere, and maintaining the temperature at 70-90 ℃;
step two, adding the water absorbent, the heavy calcium carbonate and the auxiliary agent under the stirring condition, uniformly stirring, transferring into a vacuum dispersion machine, and carrying out vacuum dispersion for 30min at the rotating speed of 1000-1500rpm to obtain a component A;
and step three, uniformly mixing the component A and the component B according to the mass ratio to obtain the bi-component polyurethane adhesive.
8. A preparation method of a two-component polyurethane adhesive and coffee grounds composition is characterized by comprising the following steps: the method comprises the following steps:
step one, placing the recovered coffee grounds in an oven for drying;
step two, transferring the dried coffee grounds into a ball mill for grinding and screening;
step three, respectively weighing and mixing the coffee grounds and the bi-component polyurethane adhesive according to the mass percentage of the coffee grounds and the bi-component polyurethane adhesive of claim 1;
step four, placing the mixture into a centrifugal stirrer for further defoaming and uniformly mixing, wherein the revolution speed of the centrifugal stirrer is 300-500rpm, the rotation speed is 300-500rpm, the vacuum degree is 0.01-0.09MPa, and the temperature is 20-40 ℃;
and step five, putting the uniformly mixed composition into a mold, and curing at normal temperature to obtain the product.
9. The method of claim 8, wherein the two-component polyurethane adhesive and coffee grounds composition comprises: in the first step, the drying temperature is 70-100 ℃, and the drying time is 2-10 hours.
10. The method of claim 8, wherein the two-component polyurethane adhesive and coffee grounds composition comprises: in the second step, the coffee grounds are ground to 100-200 meshes, the grinding time is 2-6 hours, and the grinding temperature is 20-40 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111395699.2A CN113861926A (en) | 2021-11-23 | 2021-11-23 | Bi-component polyurethane adhesive and coffee grounds composition and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111395699.2A CN113861926A (en) | 2021-11-23 | 2021-11-23 | Bi-component polyurethane adhesive and coffee grounds composition and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113861926A true CN113861926A (en) | 2021-12-31 |
Family
ID=78985260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111395699.2A Pending CN113861926A (en) | 2021-11-23 | 2021-11-23 | Bi-component polyurethane adhesive and coffee grounds composition and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113861926A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110172258A (en) * | 2019-05-30 | 2019-08-27 | 上海互见创意设计有限公司 | A kind of composite polyolefine material and preparation method thereof containing coffee grounds |
| CN110305614A (en) * | 2019-06-13 | 2019-10-08 | 南京威邦新材料有限公司 | A kind of rock wool board bi-component solvent-free polyurethane adhesive and preparation method thereof |
| CN110317455A (en) * | 2019-07-05 | 2019-10-11 | 咖法科技(上海)有限公司 | A kind of coffee grounds mixing silica gel and preparation method thereof |
| CN110760286A (en) * | 2019-06-21 | 2020-02-07 | 南京威邦新材料有限公司 | Room-temperature-cured high-strength two-component polyurethane structural adhesive and preparation method thereof |
| CN111040112A (en) * | 2019-12-17 | 2020-04-21 | 上海华峰新材料研发科技有限公司 | Polyurethane resin prepared from coffee grounds and application thereof |
| CN112552647A (en) * | 2020-12-10 | 2021-03-26 | 上海宝谊图片有限公司 | Preparation method of coffee grounds and epoxy resin composite material |
| WO2021221598A1 (en) * | 2020-04-30 | 2021-11-04 | Havrylenko Maksym Mykolaiovych | Environmentally friendly material for the production of articles, method for the manufacture thereof, and glasses frames made from environmentally friendly material |
-
2021
- 2021-11-23 CN CN202111395699.2A patent/CN113861926A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110172258A (en) * | 2019-05-30 | 2019-08-27 | 上海互见创意设计有限公司 | A kind of composite polyolefine material and preparation method thereof containing coffee grounds |
| CN110305614A (en) * | 2019-06-13 | 2019-10-08 | 南京威邦新材料有限公司 | A kind of rock wool board bi-component solvent-free polyurethane adhesive and preparation method thereof |
| CN110760286A (en) * | 2019-06-21 | 2020-02-07 | 南京威邦新材料有限公司 | Room-temperature-cured high-strength two-component polyurethane structural adhesive and preparation method thereof |
| CN110317455A (en) * | 2019-07-05 | 2019-10-11 | 咖法科技(上海)有限公司 | A kind of coffee grounds mixing silica gel and preparation method thereof |
| CN111040112A (en) * | 2019-12-17 | 2020-04-21 | 上海华峰新材料研发科技有限公司 | Polyurethane resin prepared from coffee grounds and application thereof |
| WO2021221598A1 (en) * | 2020-04-30 | 2021-11-04 | Havrylenko Maksym Mykolaiovych | Environmentally friendly material for the production of articles, method for the manufacture thereof, and glasses frames made from environmentally friendly material |
| CN112552647A (en) * | 2020-12-10 | 2021-03-26 | 上海宝谊图片有限公司 | Preparation method of coffee grounds and epoxy resin composite material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111621162B (en) | Full-biodegradable bamboo fiber high-filling polylactic acid material and preparation method thereof | |
| CN109970038B (en) | Method for producing mesocarbon microbeads by using medium-low temperature coal tar as raw material | |
| CN109054323B (en) | Lignin/microcrystalline cellulose compound, reinforced polylactic acid 3D printing material and preparation method thereof | |
| CN101181987A (en) | Method for preparing starch-based carbon microsphere | |
| CN110204856A (en) | A kind of coffee grounds melamine resin and preparation method thereof | |
| CN109694549A (en) | A kind of preparation method of Graphene epoxy resin composite material | |
| CN108689407A (en) | A kind of technique that binder pressed active carbon is exempted from abandoned biomass preparation | |
| CN101045657A (en) | Pollution free organic fertilizer produced by aginomoto waste liquid and preparation method thereof | |
| CN113943500A (en) | Modified pyrolytic carbon black and preparation method and application thereof | |
| CN111847448A (en) | Columnar activated coke based on waste plastic binder and preparation method thereof | |
| CN113861926A (en) | Bi-component polyurethane adhesive and coffee grounds composition and preparation method thereof | |
| CN105056879A (en) | Composite spherical activated carbon added with polyester fibers and capable of improving mechanical strength as well as preparation method of composite spherical activated carbon | |
| Ketabchi et al. | Effect of oil palm EFB-biochar on properties of PP/EVA composites | |
| CN104059389B (en) | Modified calcium carbonate with improved toughness and preparation method of modified calcium carbonate | |
| CN116751462A (en) | High-elasticity TPV degradable material containing coffee grounds and preparation method and application thereof | |
| CN103113206A (en) | Preparation method of neodecanoic acid cobalt | |
| CN109867826A (en) | A kind of preparation method of modification infusorial earth and its application in natural rubber | |
| CN102504349B (en) | Phosphate starch biodegradable film and preparation method thereof | |
| CN107793623A (en) | A kind of degradable composite material and preparation method thereof | |
| CN110791040B (en) | Nano calcium carbonate for toughening PVC (polyvinyl chloride) and preparation method thereof | |
| CN110483956A (en) | One kind is containing the modified polyadipate/butylene terephthalate composite material and preparation method of banana bast fiber | |
| CN112552647A (en) | Preparation method of coffee grounds and epoxy resin composite material | |
| CN109957214B (en) | Nano oxide and soybean protein isolate modified poly (adipic acid)/butylene terephthalate composite material and preparation method thereof | |
| CN111943198A (en) | Preparation method of coconut shell carbon molecular sieve with high specific surface area | |
| CN111019398A (en) | Surface treatment method for improving oleophylic and hydrophobic properties of calcium carbonate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211231 |