CN111072888A - Plastic material and preparation method thereof - Google Patents
Plastic material and preparation method thereof Download PDFInfo
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- CN111072888A CN111072888A CN201911407851.7A CN201911407851A CN111072888A CN 111072888 A CN111072888 A CN 111072888A CN 201911407851 A CN201911407851 A CN 201911407851A CN 111072888 A CN111072888 A CN 111072888A
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- 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
- C08G18/08—Processes
- C08G18/16—Catalysts
- C08G18/22—Catalysts containing metal compounds
-
- 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
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
- C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
-
- 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
- C08G18/08—Processes
- C08G18/16—Catalysts
- C08G18/161—Catalysts containing two or more components to be covered by at least two of the groups C08G18/166, C08G18/18 or C08G18/22
-
- 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
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4804—Two or more polyethers of different physical or chemical nature
-
- 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
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
- C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
- C08G18/7671—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups containing only one alkylene bisphenyl group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
- C08J2375/08—Polyurethanes from polyethers
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention provides a plastic material and a preparation method thereof. The plastic material comprises a component A containing polyether glycol and a component B containing isocyanate, wherein a compound catalyst consisting of an organic amine catalyst and a metal catalyst is introduced into the component A; in the aspect of the preparation method, the component A and the component B are respectively prepared according to the formula amount, and then are mixed according to a specific proportion and are solidified to obtain the plastic material. The catalyst is used for foaming, so that the foaming is more uniform, and the pore structure can be uniformly distributed; meanwhile, the catalyst is added during the preparation of the component A, so that the construction is more convenient, the dosage is more accurate, the material has better impact absorption rate, and the joints of sporters can be better protected. The plastic material is suitable for polyurethane plastic sports fields such as plastic runways, court and the like.
Description
Technical Field
The invention relates to the technical field of plastic materials, further relates to application of a catalyst in a plastic material and a preparation method thereof, and particularly relates to a plastic material and a preparation method thereof.
Background
The polyurethane plastic runway is also called as an all-weather sports runway and is composed of polyurethane prepolymer, mixed polyether, filler and other materials. Good mechanical property and ageing resistance. In the prior art, the preparation method of the plastic material is generally to add a catalyst, namely A, B components are mixed and then the catalyst is added before construction, the method is not favorable for uniform mixing, and the catalyst has low activity and low speed, is inconvenient and uncertain in site construction. The prior foaming air hole plastic material is prepared by reaction of external water, and the method is greatly influenced by climate, has nonuniform foaming and is difficult to control.
Disclosure of Invention
The invention aims to overcome the technical defects in the prior art, and provides a plastic material and a preparation method thereof, so as to solve the technical problem that the conventional polyurethane plastic material is not uniformly foamed in the preparation process in the prior art.
The invention aims to solve another technical problem that the internal pore structure of the conventional polyurethane plastic material is not uniform, so that the mechanical property and the elasticity of the conventional polyurethane plastic material are influenced.
The invention also aims to solve the technical problems that the conventional polyurethane plastic material is inconvenient for site construction and the dosage is difficult to determine.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
the plastic material comprises a component A containing polyether glycol and a component B containing isocyanate, wherein the component A contains 0.1-0.5 wt% of catalyst, and the catalyst is a compound product of an organic amine catalyst and a metal catalyst.
Preferably, the weight percentage of the polyether polyol in the A component is 10-30%; the isocyanate is diphenylmethane diisocyanate, and the weight percentage of the diphenylmethane diisocyanate in the component B is 25-40%.
Preferably, the component A comprises the following components in percentage by weight:
preferably, the component B comprises the following components in percentage by weight:
60 to 75 percent of mixed polyether polyol
25 to 40 percent of diphenylmethane diisocyanate.
In the above technical solution, the present invention further provides a preparation method of the plastic material, including the following steps:
1) mixing polyether polyol and a plasticizer according to the formula amount, stirring, adding a chain extender, a light stabilizer, an antioxidant, an anti-settling agent, a filler and a pigment according to the formula amount, uniformly stirring, heating to 70-80 ℃, stirring for 1 hour, cooling to below 60 ℃, adding a catalyst according to the formula amount, stirring for 0.5 hour, and grinding the material by using a grinder to obtain a component A;
2) adding the mixed polyether polyol with the formula amount into a container, stirring, heating to 75-80 ℃, vacuumizing, dehydrating and degassing, and treating for 1 hour; and then cooling to below 60 ℃, adding the diphenylmethane diisocyanate with the formula amount, and reacting for 3 hours at 80-85 ℃ to obtain the component B.
Preferably, the method further comprises the following step 3): and mixing the component A and the component B according to the weight ratio of 1:5, uniformly stirring, and curing to obtain the plastic material.
The invention provides a plastic material and a preparation method thereof. The plastic material comprises a component A containing polyether glycol and a component B containing isocyanate, wherein a compound catalyst consisting of an organic amine catalyst and a metal catalyst is introduced into the component A; in the aspect of the preparation method, the component A and the component B are respectively prepared according to the formula amount, and then are mixed according to a specific proportion and are solidified to obtain the plastic material. The catalyst is used for foaming, so that the foaming is more uniform, and the pore structure can be uniformly distributed; meanwhile, the catalyst is added during the preparation of the component A, so that the construction is more convenient, the dosage is more accurate, the material has better impact absorption rate, and the joints of sporters can be better protected. The plastic material is suitable for polyurethane plastic sports fields such as plastic runways, court and the like.
The added catalyst can improve the reaction activity and accelerate the reaction rate; by adding the catalyst, a uniform pore structure can be formed in the reaction process, so that the catalyst has good impact absorbability, mechanical property and higher elasticity, the cost can be reduced, and the energy can be saved.
The technical effects of the invention are concentrated in the following aspects:
(1) the catalyst is added into the component A containing polyether glycol, so that the catalyst is mixed more uniformly, the construction is more convenient, the uncertain factors of the using amount in the construction are eliminated, and the foaming is more uniform.
(2) The foaming mode of catalyst reaction is adopted, the foaming effect is good, the pore structure is uniformly distributed, and the foaming ratio belongs to a controllable range.
(3) After the catalyst is adopted for reaction foaming, under the same condition, the material consumption is less, the cost is reduced, and meanwhile, the energy is saved, so that the method is more environment-friendly.
(4) After the catalyst is adopted for reaction and foaming, the product has better impact absorption capacity and better elasticity, thereby better protecting sporters.
Detailed Description
Hereinafter, specific embodiments of the present invention will be described in detail. Well-known structures or functions may not be described in detail in the following embodiments in order to avoid unnecessarily obscuring the details. Approximating language, as used herein in the following examples, may be applied to identify quantitative representations that could permissibly vary in number without resulting in a change in the basic function. Unless defined otherwise, technical and scientific terms used in the following examples have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
Example 1
A plastic material is prepared by mixing and reacting a component A containing polyether glycol and a component B containing isocyanate; wherein the component A comprises the following raw materials in percentage by weight:
the component B comprises the following raw materials in percentage by weight:
60 to 75 percent of mixed polyether polyol
25 to 40 percent of diphenylmethane diisocyanate.
The catalyst is a catalyst compounded by an organic amine catalyst and a metal catalyst, can improve the reaction activity and accelerate the reaction rate, and can react to generate a pore structure, so that the plastic material has excellent performance.
The preparation method of the plastic material comprises the following steps:
(1) the preparation method of the component A containing polyether polyol comprises the following steps: according to the raw materials, according to the weight ratio, liquid materials such as polyether polyol, plasticizer and the like are added, stirring is started, then chain extender, light stabilizer, antioxidant, anti-settling agent, filler and pigment are added according to the weight percentage, the mixture is stirred uniformly, the temperature is raised to 70-80 ℃, the mixture is stirred for 1 hour, then the temperature is reduced to below 60 ℃, the catalyst is added, the mixture is stirred for 0.5 hour, and then the materials are ground by a grinder.
(2) The preparation method of the B component containing isocyanate comprises the following steps: according to the raw materials, firstly adding polyether polyol according to the weight percentage, starting a stirring device, heating the mixture to 75-80 ℃, vacuumizing, dehydrating and degassing for 1 hour. Then cooling to below 60 ℃, adding diphenylmethane diisocyanate, and reacting for 3 hours at 80-85 ℃.
(3) The polyether polyol-containing component A and the isocyanate-containing component B are uniformly mixed according to the weight ratio of 1:5, and are uniformly stirred and cured to obtain the polyurethane adhesive.
Example 2
(1) Preparation of a component a containing polyether polyol: according to the formula amount, firstly adding liquid materials such as polyether polyol, plasticizer and the like, starting stirring, then adding chain extender, light stabilizer, antioxidant, anti-settling agent, filler and pigment according to weight percentage, stirring uniformly, heating to 70-80 ℃, stirring for 1 hour, then cooling to below 60 ℃, adding catalyst, stirring for 0.5 hour, and then grinding the materials by a grinder.
(2) The preparation method of the B component containing isocyanate comprises the following steps: adding polyether glycol according to the formula amount, starting a stirring and heating device, heating to 75-80 ℃, vacuumizing, dehydrating and degassing for 1 hour. Then cooling to below 60 ℃, adding diphenylmethane diisocyanate, and reacting for 3 hours at 80-85 ℃.
(3) An application and a preparation method of a catalyst in a plastic material; the polyether polyol-containing A component and the isocyanate-containing B component are mixed according to the weight ratio of 1:5, uniformly mixing, uniformly stirring and curing to obtain the product. It was drawn down on the bottom layer of the track.
The plastic material is evenly mixed according to the proportion and poured into a mold coated with a release agent, and the mixture is cured at room temperature, and the performance is measured after one week as follows:
tensile strength: 2.0 Mpa; elongation at break: 225 percent; impact absorption rate: 40 percent.
The impact absorption is improved by 20%, and meanwhile, the cost of the product is saved by 30% due to uniform foaming.
Example 3
A plastic material comprises a component A containing polyether polyol and a component B containing isocyanate, wherein the component A comprises the following components in percentage by weight: 28% of polyether polyol, 10% of plasticizer, 5% of chain extender, 0.5% of light stabilizer, 0.5% of antioxidant, 0.5% of anti-settling agent, 50% of filler, 5% of pigment and 0.5% of catalyst; the component B comprises the following components in percentage by weight: 60% of mixed polyether polyol and 40% of diphenylmethane diisocyanate; the catalyst is a compound product of an organic amine catalyst and a metal catalyst.
The preparation method of the plastic material comprises the following steps:
1) mixing polyether polyol and a plasticizer according to the formula amount, stirring, adding a chain extender, a light stabilizer, an antioxidant, an anti-settling agent, a filler and a pigment according to the formula amount, uniformly stirring, heating to 70 ℃, stirring for 1 hour, cooling to below 60 ℃, adding a catalyst according to the formula amount, stirring for 0.5 hour, and grinding the materials by a grinder to obtain a component A;
2) adding the mixed polyether polyol with the formula amount into a container, stirring, heating to 75 ℃, vacuumizing, dehydrating and degassing, and treating for 1 hour; and then cooling to below 60 ℃, adding the diphenylmethane diisocyanate with the formula amount, and reacting for 3 hours at 80 ℃ to obtain the component B.
3) And mixing the component A and the component B according to the weight ratio of 1:5, uniformly stirring, and curing to obtain the plastic material.
Example 4
A plastic material comprises a component A containing polyether polyol and a component B containing isocyanate, wherein the component A comprises the following components in percentage by weight: 11.5% of polyether polyol, 35% of plasticizer, 2% of chain extender, 0.1% of light stabilizer, 0.1% of antioxidant, 0.2% of anti-settling agent, 50% of filler, 1% of pigment and 0.1% of catalyst; the component B comprises the following components in percentage by weight: 75% of mixed polyether polyol and 25% of diphenylmethane diisocyanate; the catalyst is a compound product of an organic amine catalyst and a metal catalyst.
The preparation method of the plastic material comprises the following steps:
1) mixing polyether polyol and a plasticizer according to the formula amount, stirring, adding a chain extender, a light stabilizer, an antioxidant, an anti-settling agent, a filler and a pigment according to the formula amount, uniformly stirring, heating to 80 ℃, stirring for 1 hour, cooling to below 60 ℃, adding a catalyst according to the formula amount, stirring for 0.5 hour, and grinding the material by using a grinder to obtain a component A;
2) adding the mixed polyether polyol with the formula amount into a container, stirring, heating to 80 ℃, vacuumizing, dehydrating and degassing, and treating for 1 hour; and then cooling to below 60 ℃, adding the diphenylmethane diisocyanate with the formula amount, and reacting for 3 hours at 85 ℃ to obtain the component B.
Example 5
A plastic material comprises a component A containing polyether polyol and a component B containing isocyanate, wherein the component A comprises the following components in percentage by weight: 30% of polyether polyol, 32.7% of plasticizer, 3% of chain extender, 0.3% of light stabilizer, 0.3% of antioxidant, 0.4% of anti-settling agent, 30% of filler, 3% of pigment and 0.3% of catalyst; the component B comprises the following components in percentage by weight: 67% of mixed polyether polyol and 33% of diphenylmethane diisocyanate; the catalyst is a compound product of an organic amine catalyst and a metal catalyst.
The embodiments of the present invention have been described in detail, but the description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention. Any modification, equivalent replacement, and improvement made within the scope of the application of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The plastic material comprises a component A containing polyether glycol and a component B containing isocyanate, and is characterized in that the component A contains 0.1-0.5 wt% of catalyst, and the catalyst is a compound product of an organic amine catalyst and a metal catalyst.
2. The plastic material of claim 1, wherein the polyether polyol is present in the A component in an amount of 10% to 30% by weight; the isocyanate is diphenylmethane diisocyanate, and the weight percentage of the diphenylmethane diisocyanate in the component B is 25-40%.
3. The plastic material according to claim 1, wherein the component A comprises the following components in percentage by weight:
4. the plastic material according to claim 3, wherein the component B comprises the following components in percentage by weight:
60 to 75 percent of mixed polyether polyol
25 to 40 percent of diphenylmethane diisocyanate.
5. The method for preparing the plastic material of claim 4, comprising the steps of:
1) mixing polyether polyol and a plasticizer according to the formula amount, stirring, adding a chain extender, a light stabilizer, an antioxidant, an anti-settling agent, a filler and a pigment according to the formula amount, uniformly stirring, heating to 70-80 ℃, stirring for 1 hour, cooling to below 60 ℃, adding a catalyst according to the formula amount, stirring for 0.5 hour, and grinding the material by using a grinder to obtain a component A;
2) adding the mixed polyether polyol with the formula amount into a container, stirring, heating to 75-80 ℃, vacuumizing, dehydrating and degassing, and treating for 1 hour; and then cooling to below 60 ℃, adding the diphenylmethane diisocyanate with the formula amount, and reacting for 3 hours at 80-85 ℃ to obtain the component B.
6. The production method according to claim 5, characterized by further comprising the following step 3): and mixing the component A and the component B according to the weight ratio of 1:5, uniformly stirring, and curing to obtain the plastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911407851.7A CN111072888A (en) | 2019-12-31 | 2019-12-31 | Plastic material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911407851.7A CN111072888A (en) | 2019-12-31 | 2019-12-31 | Plastic material and preparation method thereof |
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| Publication Number | Publication Date |
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| CN111072888A true CN111072888A (en) | 2020-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911407851.7A Withdrawn CN111072888A (en) | 2019-12-31 | 2019-12-31 | Plastic material and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114213620A (en) * | 2021-12-27 | 2022-03-22 | 江门市长河化工实业集团有限公司 | Prefabricated polyurethane foaming adhesive and preparation method thereof |
-
2019
- 2019-12-31 CN CN201911407851.7A patent/CN111072888A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114213620A (en) * | 2021-12-27 | 2022-03-22 | 江门市长河化工实业集团有限公司 | Prefabricated polyurethane foaming adhesive and preparation method thereof |
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Address after: 255000 north of Nanling South Road, high tech Zone, Zibo City, Shandong Province, east of Zidong Railway Applicant after: Shandong century United New Material Technology Co., Ltd Address before: 255000 north of Nanling South Road, high tech Zone, Zibo City, Shandong Province, east of Zidong Railway Applicant before: ZIBO SHIJI LIANHE NEW BUILDING MATERIAL Co.,Ltd. |
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