CN106750101A - Polyurethane cushion and preparation method thereof - Google Patents
Polyurethane cushion and preparation method thereof Download PDFInfo
- Publication number
- CN106750101A CN106750101A CN201710103488.4A CN201710103488A CN106750101A CN 106750101 A CN106750101 A CN 106750101A CN 201710103488 A CN201710103488 A CN 201710103488A CN 106750101 A CN106750101 A CN 106750101A
- Authority
- CN
- China
- Prior art keywords
- ppg
- polyurethane
- ddl
- polyurethane cushion
- preparation
- 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
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Classifications
-
- 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
- C08G18/4812—Mixtures of polyetherdiols with polyetherpolyols having at least three hydroxy groups
-
- 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
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6674—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
-
- 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
Abstract
The invention belongs to polyurethane product technical field, and in particular to a kind of polyurethane cushion and preparation method thereof.Polyurethane cushion is made up of the following raw material：PPG DDL 3000D, PPG DDL 1000D, PPG DMN 1000, MDI, curing agent.The present invention has elastic good, intensity high, high-wearing feature, tear-resistant, there is good oil resistant, chemical-resistant resistance and environmental resistance, hydrolysis.
Description
Technical field
The invention belongs to polyurethane product technical field, and in particular to a kind of polyurethane cushion and preparation method thereof.
Background technology
The cushion pad main material for existing currently on the market is quality of rubber materials, and the physical property of rubber buffer is poor.
And polyurethane cushion has elastic good, intensity high, high-wearing feature, tear-resistant, there are good oil resistant, chemical-resistant resistance and resistance to ring
The advantages of border performance, hydrolysis.
The content of the invention
It is an object of the invention to provide a kind of polyurethane cushion, with elastic good, intensity is high, high-wearing feature, tear-resistant,
There are good oil resistant, chemical-resistant resistance and environmental resistance, hydrolysis；Invention also provides polyurethane cushion
Preparation method, it is scientific and reasonable, simple and easy to apply.
Polyurethane cushion of the present invention, is made up of the raw material of following parts by weight：
Described PPG DDL-3000D is 2 degrees of functionality, the PPG of molecular weight 3000；The polyethers is by black
The federal chemistry Industrial Co., Ltd of Boulder letter produces, and the product elasticity made of this kind of polyalcohol is good, good toughness.
Described PPG DDL-1000D is 2 degrees of functionality, the PPG of molecular weight 1000；The polyethers is by black
The federal chemistry Industrial Co., Ltd production of Boulder letter, the Article Stiffness Determination made of this kind of polyalcohol is big, wear-resisting.
Described PPG DMN-1000 is 3 degrees of functionality, the PPG of molecular weight 1000；The polyethers is by Zibo
The federal chemistry Industrial Co., Ltd production of moral letter, the Article Stiffness Determination made of this kind of polyalcohol is big, tear-resistant.
The addition of described MDI (methyl diphenylene diisocyanate) is such that reaction speed is fast, and products machinery performance is good, resistance to
Mill excellent performance.
Described curing agent is 1,4- butanediols.
The preparation method of polyurethane cushion of the present invention, step is as follows：
(1) PPG DDL-3000D, PPG DDL-1000D and PPG DMN-1000 are existed
100-110 DEG C vacuumizes dehydration 1.5-2.0h, and MDI is added after 45-55 DEG C of cooling, and 75-85 DEG C of synthesis NCO content is 2-8%'s
Performed polymer；
(2) performed polymer and curing agent are mixed, mixing temperature is 65-80 DEG C, and sulphur in mould is poured into after being well mixed
Change the demoulding after 30min, 8-12h is vulcanized at 90-100 DEG C and obtains polyurethane buffering mat product.
The present invention compared with prior art, has the advantages that：
(1) present invention has elastic good, intensity high, high-wearing feature, tear-resistant, have good oil resistant, chemical-resistant resistance and
The advantages of environmental resistance, hydrolysis.
(2) preparation method of the present invention is simply easily implemented.
Specific embodiment
The present invention is described further with reference to embodiments.
Embodiment 1
Raw material composition is as follows：
Preparation method is as follows：
(1) by PPG DDL-3000D, PPG DDL-1000D and PPG DMN-1000 102
Dehydration 1.7h DEG C is vacuumized, MDI is added after 48 DEG C of cooling, 78 DEG C of synthesis NCO contents are 6% performed polymer；
(2) performed polymer and BDO are mixed, mixing temperature is 70 DEG C, and sulphur in mould is poured into after being well mixed
Change the demoulding after 30min, 10h is vulcanized at 96 DEG C and obtains polyurethane buffering mat product.
Product index is shown in Table 1.
The product index of 1 embodiment of table 1
| Tensile strength (MP) | Elongation at break (%) | Tearing strength (N/mm) | Hardness (Shao-A) |
| 26 | 354 | 94 | 83 |
Embodiment 2
Raw material composition is as follows：
Preparation method is as follows：
(1) by PPG DDL-3000D, PPG DDL-1000D and PPG DMN-1000 100
Dehydration 1.5h DEG C is vacuumized, MDI is added after 45 DEG C of cooling, 75 DEG C of synthesis NCO contents are 2% performed polymer；
(2) performed polymer and BDO are mixed, mixing temperature is 65 DEG C, and sulphur in mould is poured into after being well mixed
Change the demoulding after 30min, 8h is vulcanized at 90 DEG C and obtains polyurethane buffering mat product.
Product index is shown in Table 2.
The product index of 2 embodiment of table 2
| Tensile strength (MP) | Elongation at break (%) | Tearing strength (N/mm) | Hardness (Shao-A) |
| 19 | 556 | 65 | 70 |
Embodiment 3
Raw material composition is as follows：
Preparation method is as follows：
(1) by PPG DDL-3000D, PPG DDL-1000D and PPG DMN-1000 110
Dehydration 2.0h DEG C is vacuumized, MDI is added after 55 DEG C of cooling, 85 DEG C of synthesis NCO contents are 8% performed polymer；
(2) performed polymer and BDO are mixed, mixing temperature is 80 DEG C, and sulphur in mould is poured into after being well mixed
Change the demoulding after 30min, 12h is vulcanized at 100 DEG C and obtains polyurethane buffering mat product.
Product index is shown in Table 3.
The product index of 3 embodiment of table 3
| Tensile strength (MP) | Elongation at break (%) | Tearing strength (N/mm) | Hardness (Shao-A) |
| 32 | 252 | 106 | 88 |
Claims (6)
1. a kind of polyurethane cushion, it is characterised in that be made up of the raw material of following parts by weight：
2. polyurethane cushion according to claim 1, it is characterised in that described PPG DDL-3000D is 2
Degree of functionality, the PPG of molecular weight 3000.
3. polyurethane cushion according to claim 1, it is characterised in that described PPG DDL-1000D is 2
Degree of functionality, the PPG of molecular weight 1000.
4. polyurethane cushion according to claim 1, it is characterised in that described PPG DMN-1000 is 3 officials
Energy degree, the PPG of molecular weight 1000.
5. polyurethane cushion according to claim 1, it is characterised in that described curing agent is BDO.
6. the preparation method of any described polyurethane cushions of a kind of claim 1-5, it is characterised in that step is as follows：
(1) by PPG DDL-3000D, PPG DDL-1000D and PPG DMN-1000 in 100-110
Dehydration 1.5-2.0h DEG C is vacuumized, MDI is added after 45-55 DEG C of cooling, 75-85 DEG C of synthesis NCO content is the performed polymer of 2-8%；
(2) performed polymer and curing agent are mixed, mixing temperature is 65-80 DEG C, is poured into after being well mixed in mould and vulcanized
The demoulding after 30min, vulcanization 8-12h obtains polyurethane buffering mat product at 90-100 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710103488.4A CN106750101A (en) | 2017-02-24 | 2017-02-24 | Polyurethane cushion and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710103488.4A CN106750101A (en) | 2017-02-24 | 2017-02-24 | Polyurethane cushion and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106750101A true CN106750101A (en) | 2017-05-31 |
Family
ID=58960371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710103488.4A Pending CN106750101A (en) | 2017-02-24 | 2017-02-24 | Polyurethane cushion and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN106750101A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108329456A (en) * | 2018-01-17 | 2018-07-27 | 宁国市顺鑫金属制品有限公司 | A kind of forging machine tool cushion pad and its production method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102585146A (en) * | 2011-12-23 | 2012-07-18 | 山东东大一诺威聚氨酯有限公司 | Polyurethane cushion |
| CN105037681A (en) * | 2015-06-25 | 2015-11-11 | 淄博德信联邦化学工业有限公司 | Casting polyurethane elastomer and preparation method thereof |
| CN106046313A (en) * | 2016-06-03 | 2016-10-26 | 湖北鼎龙化学股份有限公司 | Chemical-mechanical polishing pad, buffer layer and preparation method of buffer layer |
-
2017
- 2017-02-24 CN CN201710103488.4A patent/CN106750101A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102585146A (en) * | 2011-12-23 | 2012-07-18 | 山东东大一诺威聚氨酯有限公司 | Polyurethane cushion |
| CN105037681A (en) * | 2015-06-25 | 2015-11-11 | 淄博德信联邦化学工业有限公司 | Casting polyurethane elastomer and preparation method thereof |
| CN106046313A (en) * | 2016-06-03 | 2016-10-26 | 湖北鼎龙化学股份有限公司 | Chemical-mechanical polishing pad, buffer layer and preparation method of buffer layer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108329456A (en) * | 2018-01-17 | 2018-07-27 | 宁国市顺鑫金属制品有限公司 | A kind of forging machine tool cushion pad and its production method |
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Application publication date: 20170531 |
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