CN102718957A - Aromatic polyester polyol for preparing polyurethane foam and preparation method thereof - Google Patents
Aromatic polyester polyol for preparing polyurethane foam and preparation method thereof Download PDFInfo
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- CN102718957A CN102718957A CN2012102155578A CN201210215557A CN102718957A CN 102718957 A CN102718957 A CN 102718957A CN 2012102155578 A CN2012102155578 A CN 2012102155578A CN 201210215557 A CN201210215557 A CN 201210215557A CN 102718957 A CN102718957 A CN 102718957A
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Abstract
The invention belongs to the field of chemical synthesis and concretely relates to aromatic polyester polyol for preparing polyurethane foam and a preparation method thereof. The aromatic polyester polyol is prepared from the following raw materials in parts by weight: 20-41 parts of diethylene glycol, 20-45 parts of terephthalic acid, 6-15 parts of glycerol, 5-20 parts of soybean-oil fat acid and 0.02-0.1 part of tetrabutyl titanate. The aromatic polyester polyol has the advanatages that polyurethane rigid foam which is prepared from the aromatic polyester polyol has the advantages of fineness, high strength, high-temperature resistance and the like, the flame retardance of a product can be improved, the product has high strength and good dimensional stability and is highly cured, and catalysts are saved.
Description
Technical field
The invention belongs to the field of chemical synthesis, be specifically related to a kind of Aromatic Polyester Polyols that is used to prepare polyurethane foam and preparation method thereof.
Background technology
Rigid urethane foam has some superperformances, and is little like density, thermal conductivity is low, intensity good, strong etc. with other material cohesiveness, is the good heat-insulation material that is easy to moulding, easy construction.What be used for polyurethane hard bubble foam production in the market generally is polyether glycol, and its cost is higher, and rigid-foam polyether polyol is with the propylene oxide end-blocking, is the secondary hydroxyl structure, and post curing is slow, and spent catalyst is many.
Summary of the invention
The purpose of this invention is to provide a kind of Aromatic Polyester Polyols that is used to prepare polyurethane foam and preparation method thereof; The hard polyurethane foam for preparing with Aromatic Polyester Polyols has advantages such as fine and closely woven property, intensity be high, high temperature resistant; And can improve the flame retardant resistance of goods, product strength is high, dimensional stability is good, slaking is fast, the saving catalyzer.
A kind of Aromatic Polyester Polyols that is used to prepare polyurethane foam of the present invention; According to the parts by weight meter, process: 5 ~ 20 parts of 20 ~ 41 parts of glycol ethers, 20 ~ 45 parts of terephthalic acids, 6 ~ 15 parts of glycerine, soy(a)-bean oil fatty acid and 0.02 ~ 0.1 part of tetrabutyl titanate by following raw material.
Wherein, terephthalic acid can derive from secondary board material, pond material and the tankage in the system in polyester production production, turns waste into wealth with this.
The preparation method who is used to prepare the Aromatic Polyester Polyols of polyurethane foam of the present invention may further comprise the steps:
(1) glycol ether, terephthalic acid, glycerine, soy(a)-bean oil fatty acid and tetrabutyl titanate are joined in the pet reaction still; Slowly be warming up to 160 ~ 180 ℃ and carry out esterification, control still column temperature is 100 ~ 102 ℃, is incubated after 2 hours; Slowly be warming up to 225 ~ 235 ℃, be incubated 2 ~ 3 hours;
When (2) the distillation column temperature drops to below 70 ℃, vacuumize dehydration and carry out polycondensation;
(3) vacuumize 2 hours after, survey acid number≤2.0mgkoh/g, can the discharging of suction diatomite filtration, obtain Aromatic Polyester Polyols.
The invention has the advantages that: Aromatic Polyester Polyols is utilized system in polyester production production waste, pond material; Soy(a)-bean oil fatty acid also is the waste material in the vegetable oil production; Process polyester polyol through chemical treatment; Polyester polyol is compared with widely used polyether glycol in the market, and heatproof, wear-resisting, oil resistant and physical strength height take advantage, and therefore in goods such as polyurethane foam material synthetic leather, coating, bonding agent, elastomerics, demonstrates its characteristic and developed.In the polyether(poly)urethane rigid foam material of particularly widely applying in recent years, add a certain proportion of polyester polyol, can improve the intensity of material by a relatively large margin, thereby can significantly reduce the production cost of polyurethane rigid foam material; Because polyester type foam material thermal conductivity is little, thermal and insulating performance is excellent, is used widely at aspects such as piping insulation and heat-insulatings at present.
Embodiment
Below in conjunction with embodiment the present invention is described further.
Embodiment 1:
The Aromatic Polyester Polyols that is used to prepare polyurethane foam according to the following steps preparation:
(1) 26kg glycol ether, 28kg terephthalic acid, 6kg glycerine, 12kg soy(a)-bean oil fatty acid and 0.02kg tetrabutyl titanate are joined in the pet reaction still; Slowly be warming up to 170 ℃ and carry out esterification; Control still column temperature is 101 ℃; Be incubated after 2 hours, slowly be warming up to 230 ℃, be incubated 2 hours;
When (2) the distillation column temperature drops to below 70 ℃, vacuumize dehydration and carry out polycondensation;
(3) vacuumize 2 hours after, survey acid number≤2.0mgkoh/g, can the discharging of suction diatomite filtration, obtain Aromatic Polyester Polyols.
Embodiment 2:
The Aromatic Polyester Polyols that is used to prepare polyurethane foam according to the following steps preparation:
(1) 35kg glycol ether, 29kg terephthalic acid, 8kg glycerine, 20kg soy(a)-bean oil fatty acid and 0.05kg tetrabutyl titanate are joined in the pet reaction still; Slowly be warming up to 160 ℃ and carry out esterification; Control still column temperature is 100 ℃; Be incubated after 2 hours, slowly be warming up to 225 ℃, be incubated 2 hours;
When (2) the distillation column temperature drops to below 70 ℃, vacuumize dehydration and carry out polycondensation;
(3) vacuumize 2 hours after, survey acid number≤2.0mgkoh/g, can the discharging of suction diatomite filtration, obtain Aromatic Polyester Polyols.
Embodiment 3:
The Aromatic Polyester Polyols that is used to prepare polyurethane foam according to the following steps preparation:
(1) 33kg glycol ether, 39kg terephthalic acid, 15kg glycerine, 20kg soy(a)-bean oil fatty acid and 0.1kg tetrabutyl titanate are joined in the pet reaction still; Slowly be warming up to 180 ℃ and carry out esterification; Control still column temperature is 102 ℃; Be incubated after 2 hours, slowly be warming up to 235 ℃, be incubated 3 hours;
When (2) the distillation column temperature drops to below 70 ℃, vacuumize dehydration and carry out polycondensation;
(3) vacuumize 2 hours after, survey acid number≤2.0mgkoh/g, can the discharging of suction diatomite filtration, obtain Aromatic Polyester Polyols.
Claims (2)
1. Aromatic Polyester Polyols that is used to prepare polyurethane foam; It is characterized in that processing by following raw material: 5 ~ 20 parts of 20 ~ 41 parts of glycol ethers, 20 ~ 45 parts of terephthalic acids, 6 ~ 15 parts of glycerine, soy(a)-bean oil fatty acid and 0.02 ~ 0.1 part of tetrabutyl titanate according to the parts by weight meter.
2. the described preparation method who is used to prepare the Aromatic Polyester Polyols of polyurethane foam of a claim 1 is characterized in that may further comprise the steps:
(1) glycol ether, terephthalic acid, glycerine, soy(a)-bean oil fatty acid and tetrabutyl titanate are joined in the pet reaction still; Slowly be warming up to 160 ~ 180 ℃ and carry out esterification, control still column temperature is 100 ~ 102 ℃, is incubated after 2 hours; Slowly be warming up to 225 ~ 235 ℃, be incubated 2 ~ 3 hours;
When (2) the distillation column temperature drops to below 70 ℃, vacuumize dehydration and carry out polycondensation;
(3) vacuumize 2 hours after, survey acid number≤2.0mgkoh/g, can the discharging of suction diatomite filtration, obtain Aromatic Polyester Polyols.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102155578A CN102718957A (en) | 2012-06-27 | 2012-06-27 | Aromatic polyester polyol for preparing polyurethane foam and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012102155578A CN102718957A (en) | 2012-06-27 | 2012-06-27 | Aromatic polyester polyol for preparing polyurethane foam and preparation method thereof |
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| CN102718957A true CN102718957A (en) | 2012-10-10 |
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| CN2012102155578A Pending CN102718957A (en) | 2012-06-27 | 2012-06-27 | Aromatic polyester polyol for preparing polyurethane foam and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103012306A (en) * | 2013-01-08 | 2013-04-03 | 南京工业大学 | Biology base molindone polyhydric alcohol as well as preparation method and application of biology base molindone polyhydric alcohol |
| CN105367774A (en) * | 2015-11-19 | 2016-03-02 | 滕州市科米特新材料有限责任公司 | Nitrogen heterocyclic castor oil-based polyester polyol and preparation method and use thereof |
| CN107602831A (en) * | 2017-10-31 | 2018-01-19 | 山东诺威聚氨酯股份有限公司 | The production method of hard bubble PEPA |
| KR102058153B1 (en) | 2019-07-16 | 2019-12-20 | 강대권 | Manufacturing Method Of Polyesther Polyol Using Terephthalic Acid |
| CN111995740A (en) * | 2020-08-25 | 2020-11-27 | 江苏德励达新材料有限公司 | Method for preparing aromatic polyester polyol with good pentane compatibility |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102245668A (en) * | 2008-10-15 | 2011-11-16 | 巴斯夫欧洲公司 | Terephthalic acid-based polyester polyols |
| CN102321449A (en) * | 2011-08-05 | 2012-01-18 | 北京高盟新材料股份有限公司 | Method for preparing temperature-resistant composite adhesive with high solid content |
-
2012
- 2012-06-27 CN CN2012102155578A patent/CN102718957A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102245668A (en) * | 2008-10-15 | 2011-11-16 | 巴斯夫欧洲公司 | Terephthalic acid-based polyester polyols |
| CN102321449A (en) * | 2011-08-05 | 2012-01-18 | 北京高盟新材料股份有限公司 | Method for preparing temperature-resistant composite adhesive with high solid content |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103012306A (en) * | 2013-01-08 | 2013-04-03 | 南京工业大学 | Biology base molindone polyhydric alcohol as well as preparation method and application of biology base molindone polyhydric alcohol |
| CN105367774A (en) * | 2015-11-19 | 2016-03-02 | 滕州市科米特新材料有限责任公司 | Nitrogen heterocyclic castor oil-based polyester polyol and preparation method and use thereof |
| CN107602831A (en) * | 2017-10-31 | 2018-01-19 | 山东诺威聚氨酯股份有限公司 | The production method of hard bubble PEPA |
| KR102058153B1 (en) | 2019-07-16 | 2019-12-20 | 강대권 | Manufacturing Method Of Polyesther Polyol Using Terephthalic Acid |
| CN111995740A (en) * | 2020-08-25 | 2020-11-27 | 江苏德励达新材料有限公司 | Method for preparing aromatic polyester polyol with good pentane compatibility |
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Application publication date: 20121010 |