CN111925502A - Novel mute mahjong material and preparation method thereof - Google Patents
Novel mute mahjong material and preparation method thereof Download PDFInfo
- Publication number
- CN111925502A CN111925502A CN202010811237.3A CN202010811237A CN111925502A CN 111925502 A CN111925502 A CN 111925502A CN 202010811237 A CN202010811237 A CN 202010811237A CN 111925502 A CN111925502 A CN 111925502A
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- CN
- China
- Prior art keywords
- polyether polyol
- component
- mahjong
- prepolymer
- novel mute
- 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.)
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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
- C08G18/70—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
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
- A63F9/00—Games not otherwise provided for
- A63F9/20—Dominoes or like games; Mah-Jongg games
-
- 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
-
- 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
- C08G18/4825—Polyethers containing two hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
- C08K5/12—Esters; Ether-esters of cyclic polycarboxylic acids
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
- A63F9/00—Games not otherwise provided for
- A63F9/20—Dominoes or like games; Mah-Jongg games
- A63F2009/205—Mah-jongg games
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention belongs to the field of chemical industry, and particularly relates to a novel mute mahjong material and a preparation method thereof, wherein a prepolymer is prepared from a component A, polyether polyol DDL-2000D is subjected to vacuum-pumping dehydration for 1.5-2.0 h at the temperature of 100-120 ℃, metered isocyanate is added after the temperature is reduced to 45-55 ℃, and the temperature is increased to 70-80 ℃ for reaction for 2-2.5 h to synthesize the prepolymer with the NCO content of 5-15%; and (3) uniformly mixing the prepolymer and the component B, pouring the mixture into a mold, keeping the temperature of the mold at 85 +/-5 ℃, reacting and forming under the pressure of 5-10 MPa, demolding after 30min, and curing for 24 hours at 80 ℃ to obtain a finished product. The mahjong made of the material has the advantages of excellent mute effect, good wear resistance, long service life and the like.
Description
Technical Field
The invention belongs to the field of chemical industry, and particularly relates to a novel mute mahjong material and a preparation method thereof.
Background
Mahjong, also known as "sparrow" or "mourning", is a genuine country and has been one of the most popular recreational activities since now. With the continuous improvement of living standard of people, whether in south or north, country or city, the popularity of mahjong is higher and higher, but the phenomenon that mahjong disturbs people is rare, and the neighborhood relationship contradiction is caused.
Disclosure of Invention
According to the defects of the prior art, the invention provides the novel mute mahjong material and the preparation method thereof, and the mahjong made of the material has the advantages of excellent mute effect, good wear resistance, long service life and the like.
The invention relates to a novel mute mahjong material which is prepared from a component A and a component B in parts by weight as follows:
the component A comprises:
30-60 parts of polyether polyol DDL-2000D
20-50 parts of isocyanate
And B component:
furthermore, the polyether polyol DDL-2000D is 2-functionality and 2000-molecular-weight polyether polyol produced by Zibode Federal chemical industry Limited, and products made of the polyether polyol have good elasticity and strength.
Furthermore, the isocyanate is MDI-50 (a mixture of 2, 4-diphenylmethane diisocyanate and 4,4' -diphenylmethane diisocyanate), and has high reaction speed and good mechanical property.
Furthermore, the polyether polyol DDL-1000D is 2-functionality polyether polyol with the molecular weight of 1000 produced by Zibode Federal chemical industry Limited, and products made of the polyether polyol have high strength and good wear resistance.
Furthermore, the polyether polyol DEP-330N is a polyether polyol with functionality of 3 and molecular weight of 4800, which is produced by Zibode Federal chemical industry Limited, and products made of the polyether polyol have the advantages of fast curing and good toughness.
Furthermore, the chain extender is one or more of MOCA (3,3 '-dichloro-4, 4' -diaminodiphenylmethane), TMP (trimethylolpropane) or 1, 4-butanediol, and the chain extender plays a role in chain extension and curing.
Furthermore, the plasticizer is DOTP (dioctyl phthalate), and the effects of reducing viscosity and reducing cost are achieved.
Furthermore, the catalyst is an organic zinc catalyst or an organic bismuth catalyst.
The invention also provides a preparation method of the novel mute mahjong material, which comprises the following steps:
(1) preparing a prepolymer from the component A, vacuumizing and dehydrating polyether polyol DDL-2000D at 100-120 ℃ for 1.5-2.0 h, cooling to 45-55 ℃, adding metered isocyanate, heating to 70-80 ℃, and reacting for 2-2.5 h to synthesize the prepolymer with NCO content of 5-15%;
(2) and (2) uniformly mixing the prepolymer prepared in the step (1) with the component B, pouring the mixture into a mold, keeping the temperature of the mold at 85 +/-5 ℃, carrying out reaction forming under the pressure of 5-10 MPa, demolding after 30min, and curing for 24 hours at 80 ℃ to obtain a finished product.
In summary, the invention has the following advantages:
(1) the mute mahjong material prepared by the invention has the advantages of good strength, good mute effect, long service life and the like.
(2) The invention also provides a preparation method of the compound, and the preparation method is simple and easy to implement.
Detailed Description
The present invention is further illustrated by the following examples.
Example 1:
a novel mute mahjong material is prepared from a component A and a component B in parts by weight as follows:
the component A comprises:
polyether polyol DDL-2000D 55 parts
Isocyanate 45 parts
And B component:
the polyether polyol DDL-2000D of the component A is 2-functionality and 2000-molecular-weight polyether polyol produced by Zibode Federal chemical industry Co.
The isocyanate in the component A is MDI-50.
The polyether polyol DDL-1000D of the component B is 2-functionality polyether polyol with the molecular weight of 1000 produced by Zibode Federal chemical industry Limited.
The polyether polyol DEP-330N in the component B is polyether polyol with functionality of 3 and molecular weight of 4800, which is produced by Zibode Federal chemical industry Limited.
The chain extender of the component B is MOCA (3,3 '-dichloro-4, 4' -diaminodiphenylmethane).
The plasticizer is DOTP (dioctyl phthalate).
The catalyst is an organic zinc catalyst.
The preparation method comprises the following steps:
(1) preparing a prepolymer from the component A, vacuumizing and dehydrating polyether polyol DDL-2000D at 100 ℃ for 2.0h, cooling to 45 ℃, adding metered isocyanate, heating to 70 ℃, and reacting for 2.5h to synthesize the prepolymer with NCO content of 7%;
(2) and (2) uniformly mixing the prepolymer prepared in the step (1) with the component B, pouring the mixture into a mold, keeping the temperature of the mold at 85 +/-5 ℃, reacting and forming under the pressure of 6MPa, demolding after 30min, and curing for 24 hours at 80 ℃ to obtain a finished product.
Example 2:
a novel mute mahjong material is prepared from a component A and a component B in parts by weight as follows:
the component A comprises:
polyether polyol DDL-2000D 50 parts
50 parts of isocyanate
And B component:
the polyether polyol DDL-2000D of the component A is 2-functionality and 2000-molecular-weight polyether polyol produced by Zibode Federal chemical industry Co.
The isocyanate in the component A is MDI-50.
The polyether polyol DDL-1000D of the component B is 2-functionality polyether polyol with the molecular weight of 1000 produced by Zibode Federal chemical industry Limited.
The polyether polyol DEP-330N in the component B is polyether polyol with functionality of 3 and molecular weight of 4800, which is produced by Zibode Federal chemical industry Limited.
The chain extender of the component B is MOCA (3,3 '-dichloro-4, 4' -diaminodiphenylmethane).
The plasticizer is DOTP (dioctyl phthalate).
The catalyst is an organic zinc catalyst.
The preparation method comprises the following steps:
(1) preparing a prepolymer from the component A, vacuumizing and dehydrating polyether polyol DDL-2000D at 120 ℃ for 1.5h, cooling to 55 ℃, adding metered isocyanate, heating to 80 ℃, and reacting for 2h to synthesize the prepolymer with 12% of NCO content;
(2) and (2) uniformly mixing the prepolymer prepared in the step (1) with the component B, pouring the mixture into a mold, keeping the temperature of the mold at 85 +/-5 ℃, reacting and forming under the pressure of 8MPa, demolding after 30min, and curing for 24 hours at 80 ℃ to obtain a finished product.
Example 3:
a novel mute mahjong material is prepared from a component A and a component B in parts by weight as follows:
the component A comprises:
40 portions of polyether polyol DDL-2000D
Isocyanate 60 parts
And B component:
the polyether polyol DDL-2000D of the component A is 2-functionality and 2000-molecular-weight polyether polyol produced by Zibode Federal chemical industry Co.
The isocyanate in the component A is MDI-50.
The polyether polyol DDL-1000D of the component B is 2-functionality polyether polyol with the molecular weight of 1000 produced by Zibode Federal chemical industry Limited.
The polyether polyol DEP-330N in the component B is polyether polyol with functionality of 3 and molecular weight of 4800, which is produced by Zibode Federal chemical industry Limited.
The chain extender of the component B is MOCA (3,3 '-dichloro-4, 4' -diaminodiphenylmethane).
The plasticizer is DOTP (dioctyl phthalate).
The catalyst is an organic bismuth catalyst.
The preparation method comprises the following steps:
(1) preparing a prepolymer from the component A, vacuumizing and dehydrating polyether polyol DDL-2000D at 110 ℃ for 2.0h, cooling to 50 ℃, adding metered isocyanate, heating to 75 ℃ and reacting for 2.5h to synthesize the prepolymer with 12% of NCO content;
(2) and (2) uniformly mixing the prepolymer prepared in the step (1) with the component B, pouring the mixture into a mold, keeping the temperature of the mold at 85 +/-5 ℃, reacting and forming under the pressure of 10MPa, demolding after 30min, and curing for 24 hours at 80 ℃ to obtain a finished product.
The test indexes of the finished products prepared in the examples 1 to 3 are as follows:
Claims (9)
1. a novel mute mahjong material is characterized in that: the composition is prepared from a component A and a component B in parts by weight as follows:
the component A comprises:
30-60 parts of polyether polyol DDL-2000D
20-50 parts of isocyanate
And B component:
2. the novel mute mahjong material as claimed in claim 1, wherein: the polyether polyol DDL-2000D is 2-functionality and 2000-molecular-weight polyether polyol produced by Zibode Federal chemical industry Limited.
3. The novel mute mahjong material as claimed in claim 1, wherein: the isocyanate is MDI-50.
4. The novel mute mahjong material as claimed in claim 1, wherein: the polyether polyol DDL-1000D is 2-functionality polyether polyol with the molecular weight of 1000 produced by Zibode Federal chemical industry Limited.
5. The novel mute mahjong material as claimed in claim 1, wherein: the polyether polyol DEP-330N is polyether polyol with functionality of 3 and molecular weight of 4800, which is produced by Zibode Federal chemical industry Limited.
6. The novel mute mahjong material as claimed in claim 1, wherein: the chain extender is one or more of MOCA, TMP or 1, 4-butanediol.
7. The novel mute mahjong material as claimed in claim 1, wherein: the plasticizer is DOTP.
8. The novel mute mahjong material as claimed in claim 1, wherein: the catalyst is an organic zinc catalyst or an organic bismuth catalyst.
9. A preparation method of the novel mute mahjong material as claimed in any one of claims 1 to 8, is characterized by comprising the following steps:
(1) preparing a prepolymer from the component A, vacuumizing and dehydrating polyether polyol DDL-2000D at 100-120 ℃ for 1.5-2.0 h, cooling to 45-55 ℃, adding metered isocyanate, heating to 70-80 ℃, and reacting for 2-2.5 h to synthesize the prepolymer with NCO content of 5-15%;
(2) and (2) uniformly mixing the prepolymer prepared in the step (1) with the component B, pouring the mixture into a mold, keeping the temperature of the mold at 85 +/-5 ℃, carrying out reaction forming under the pressure of 5-10 MPa, demolding after 30min, and curing for 24 hours at 80 ℃ to obtain a finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010811237.3A CN111925502A (en) | 2020-08-13 | 2020-08-13 | Novel mute mahjong material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010811237.3A CN111925502A (en) | 2020-08-13 | 2020-08-13 | Novel mute mahjong material and preparation method thereof |
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| CN111925502A true CN111925502A (en) | 2020-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010811237.3A Pending CN111925502A (en) | 2020-08-13 | 2020-08-13 | Novel mute mahjong material and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114057983A (en) * | 2021-12-11 | 2022-02-18 | 施建辉 | Mahjong pieces for full-automatic mahjong machine |
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| CN102161742A (en) * | 2011-03-24 | 2011-08-24 | 上海科华聚氨酯制品有限公司 | Organic polymer polyurethane elastomer and preparation method thereof |
| CN102250308A (en) * | 2011-06-03 | 2011-11-23 | 黎明化工研究院 | Polyurethane elastomer composite and preparation method of transparent elastomer thereof |
| CN102719084A (en) * | 2012-06-28 | 2012-10-10 | 威海市海王旋流器有限公司 | Polyurethane elastomer for molds and manufacturing method of polyurethane elastomer |
| CN105273161A (en) * | 2014-07-24 | 2016-01-27 | 深圳市湘东兴实业有限公司 | High-elasticity wear-resistance polyurethane elastomer and preparation method thereof |
| CN106310654A (en) * | 2016-08-19 | 2017-01-11 | 施建辉 | Automatic mahjong tile and production process thereof |
| CN108970104A (en) * | 2018-07-26 | 2018-12-11 | 海宁永欣科技咨询有限公司 | A kind of preparation method of antibacterial mah-jong pieces |
-
2020
- 2020-08-13 CN CN202010811237.3A patent/CN111925502A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102161742A (en) * | 2011-03-24 | 2011-08-24 | 上海科华聚氨酯制品有限公司 | Organic polymer polyurethane elastomer and preparation method thereof |
| CN102250308A (en) * | 2011-06-03 | 2011-11-23 | 黎明化工研究院 | Polyurethane elastomer composite and preparation method of transparent elastomer thereof |
| CN102719084A (en) * | 2012-06-28 | 2012-10-10 | 威海市海王旋流器有限公司 | Polyurethane elastomer for molds and manufacturing method of polyurethane elastomer |
| CN105273161A (en) * | 2014-07-24 | 2016-01-27 | 深圳市湘东兴实业有限公司 | High-elasticity wear-resistance polyurethane elastomer and preparation method thereof |
| CN106310654A (en) * | 2016-08-19 | 2017-01-11 | 施建辉 | Automatic mahjong tile and production process thereof |
| CN108970104A (en) * | 2018-07-26 | 2018-12-11 | 海宁永欣科技咨询有限公司 | A kind of preparation method of antibacterial mah-jong pieces |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114057983A (en) * | 2021-12-11 | 2022-02-18 | 施建辉 | Mahjong pieces for full-automatic mahjong machine |
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Application publication date: 20201113 |