CN102942685A - Modified polyester polyol for rigid polyurethane foam - Google Patents
Modified polyester polyol for rigid polyurethane foam Download PDFInfo
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- CN102942685A CN102942685A CN2012103879929A CN201210387992A CN102942685A CN 102942685 A CN102942685 A CN 102942685A CN 2012103879929 A CN2012103879929 A CN 2012103879929A CN 201210387992 A CN201210387992 A CN 201210387992A CN 102942685 A CN102942685 A CN 102942685A
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- polyurethane foam
- rigid polyurethane
- polyester polyol
- modified polyester
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Abstract
The present invention discloses a modified polyester polyol for rigid polyurethane foam, which is composed of by weight: 30-40 parts of phthalic anhydride, 5-10 parts of sebacic acid, 5-10 parts of citric acid, 25-40 parts of polyethylene glycol 200, 5-10 parts of glycerol, 5-10 parts of sucrose, and 0.01-0.05 parts of tetrabutyl titanate. The rigid polyurethane foam prepared by the technical solution provided by the invention has the functions of waterproofing and heat insulation, has good characteristics of good heat insulation effect, light weight, big specific strength, convenient construction and the like, and also has the characteristics of soundproof, shockproof, electricity insulation, heat resistance, cold resistance, solvent resistance and the like.
Description
Technical field
The present invention relates to a kind of modified poly ester polyvalent alcohol for hard polyurethane foam.
Background technology
Urethane is one of most popular plastics, plays various effects in modern society's various fields.The chemical reaction of urethane can make swelling polymer by selecting manufacturing process and selecting additive and catalyzer is controlled and add whipping agent, produces the polyurethane foam of various different purposes and performance.
Construction industry is one of maximum world market of rigid urethane foam.The comprehensive physical performance of its excellence is the optimal selection of buildings thermal insulation.Since the eighties of last century initial stage sixties, hard polyurethane foam just is used as the thermal insulation material of house and buildings always.Because the buildings insulation standard increases substantially, cause the hard polyurethane foam annual requirement of present world architecture industry to reach about 1,300,000 tons, and with the speed increment of annual 7%.
Summary of the invention
For the deficiency of background technology, the invention provides a kind of have mechanics good mechanical property, oil resistant, the superior modified poly ester polyvalent alcohol that is used for hard polyurethane foam of abrasion resistance.
A kind of modified poly ester polyvalent alcohol for hard polyurethane foam according to the mass fraction meter, is comprised of following component:
Preferably, a kind of modified poly ester polyvalent alcohol for hard polyurethane foam according to the mass fraction meter, is comprised of following component:
Preferably, a kind of modified poly ester polyvalent alcohol for hard polyurethane foam according to the mass fraction meter, is comprised of following component:
In the technical scheme of the present invention, take the polyurethane material of polyester polyol as the basis, because it has good mechanics mechanical property, and oil resistant, wear-resistant, but when possessing above-mentioned advantage, their anti-hydrolytic performance is relatively poor, and the low temperature kindliness is poor, the feel of its goods, the especially feel during low temperature are soft not as the polyether glycol based polyurethanes.Polyester polyol is compared with polyether glycol, owing in molecular structure, having introduced phenyl ring, thereby make in the synthetic polyurethane molecular chain and increased several benzene ring structures, greatly improved the hardness of urethane itself, make its foamy structure that forms that foams have the comprehensive premium properties such as flame retardant resistance, stiffness and chemicals-resistant, the foamy structure of formation can anti-limiting ambient temperature change, be difficult for wearing out, and shrinking percentage is low, foam is evenly fine and smooth, and structure is stable.
This product that adopts technical scheme provided by the invention to obtain, can prepare hard polyurethane foam, it has the functions such as waterproof and heat insulating, have that insulation effect is good, lightweight, specific tenacity is large, easy construction, also has simultaneously the characteristics such as sound insulation, shockproof, electrical isolation, heat-resisting, cold-resistant, anti-solvent.Can be widely used in the thermal insulation materials such as casing thermofin, freezer, refrigerator car of refrigerator, refrigerator-freezer, buildings, storage tank and pipe insulation material are used for nonadiabatic occasion on a small quantity, such as imitative timber, wrapping material etc.
Specific embodiment
Embodiment 1
A kind of modified poly ester polyvalent alcohol for hard polyurethane foam according to the mass fraction meter, is comprised of following component:
Raw material is joined in the reactor logical N
2Protection heats up, the speed of control water outlet and the temperature of gas phase (under the normal pressure between 100-102 ℃).Again temperature is slowly risen to 250 ℃, when aquifer yield reaches the 70%-90% of theoretical aquifer yield, insulation 2h, then sampling detecting acid number begins to vacuumize, gas clean-up gradually, as vacuum tightness＞0.09MPa approximately behind the 4h, then sampling detecting acid number, hydroxyl value, moisture are surveyed once every 1-2h, until the qualified rear beginning cooling discharge of indices, product appearance is red viscous liquid.
Embodiment 2
A kind of modified poly ester polyvalent alcohol for hard polyurethane foam according to the mass fraction meter, is comprised of following component:
Raw material is joined in the reactor logical N
2Protection heats up, the speed of control water outlet and the temperature of gas phase (under the normal pressure between 100-102 ℃).Again temperature is slowly risen to 250 ℃, when aquifer yield reaches the 70%-90% of theoretical aquifer yield, insulation 2h, then sampling detecting acid number begins to vacuumize, gas clean-up gradually, as vacuum tightness＞0.09MPa approximately behind the 4h, then sampling detecting acid number, hydroxyl value, moisture are surveyed once every 1-2h, until the qualified rear beginning cooling discharge of indices, product appearance is red viscous liquid.
Embodiment 3
A kind of modified poly ester polyvalent alcohol for hard polyurethane foam according to the mass fraction meter, is comprised of following component:
Raw material is joined in the reactor logical N
2Protection heats up, the speed of control water outlet and the temperature of gas phase (under the normal pressure between 100-102 ℃).Again temperature is slowly risen to 250 ℃, when aquifer yield reaches the 70%-90% of theoretical aquifer yield, insulation 2h, then sampling detecting acid number begins to vacuumize, gas clean-up gradually, as vacuum tightness＞0.09MPa approximately behind the 4h, then sampling detecting acid number, hydroxyl value, moisture are surveyed once every 1-2h, until the qualified rear beginning cooling discharge of indices, product appearance is red viscous liquid.
Table 1 is the indices of product among the embodiment:
Table 1
Claims (3)
1. a modified poly ester polyvalent alcohol that is used for hard polyurethane foam is characterized in that, according to the mass fraction meter, is comprised of following component:
2. a modified poly ester polyvalent alcohol that is used for hard polyurethane foam is characterized in that, according to the mass fraction meter, is comprised of following component:
3. a modified poly ester polyvalent alcohol that is used for hard polyurethane foam is characterized in that, according to the mass fraction meter, is comprised of following component:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210387992.9A CN102942685B (en) | 2012-10-13 | 2012-10-13 | Modified polyester polyol for rigid polyurethane foam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210387992.9A CN102942685B (en) | 2012-10-13 | 2012-10-13 | Modified polyester polyol for rigid polyurethane foam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102942685A true CN102942685A (en) | 2013-02-27 |
| CN102942685B CN102942685B (en) | 2014-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210387992.9A Active CN102942685B (en) | 2012-10-13 | 2012-10-13 | Modified polyester polyol for rigid polyurethane foam |
Country Status (1)
| Country | Link |
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| CN (1) | CN102942685B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103724598A (en) * | 2013-12-06 | 2014-04-16 | 江苏盈天化学有限公司 | High functional aromatic polyester polyol for rigid foam and preparation method of high functional aromatic polyester polyol |
| CN112574550A (en) * | 2020-12-01 | 2021-03-30 | 上海恒安聚氨酯股份有限公司 | Preparation method of polylactic acid/thermoplastic polyurethane composite film |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102432846A (en) * | 2011-11-17 | 2012-05-02 | 华东理工大学 | Method and device for producing polyester polyol continuously |
| WO2012125353A1 (en) * | 2011-03-16 | 2012-09-20 | Stepan Company | Method for producing o-phthalate polyester polyols with low cyclic ester content |
-
2012
- 2012-10-13 CN CN201210387992.9A patent/CN102942685B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012125353A1 (en) * | 2011-03-16 | 2012-09-20 | Stepan Company | Method for producing o-phthalate polyester polyols with low cyclic ester content |
| CN102432846A (en) * | 2011-11-17 | 2012-05-02 | 华东理工大学 | Method and device for producing polyester polyol continuously |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103724598A (en) * | 2013-12-06 | 2014-04-16 | 江苏盈天化学有限公司 | High functional aromatic polyester polyol for rigid foam and preparation method of high functional aromatic polyester polyol |
| CN112574550A (en) * | 2020-12-01 | 2021-03-30 | 上海恒安聚氨酯股份有限公司 | Preparation method of polylactic acid/thermoplastic polyurethane composite film |
| CN112574550B (en) * | 2020-12-01 | 2022-06-28 | 上海恒安聚氨酯股份有限公司 | Preparation method of polylactic acid/thermoplastic polyurethane composite membrane |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102942685B (en) | 2014-07-16 |
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Address after: No. 1508, North Longjiang Road, Xinbei District, Changzhou City, Jiangsu Province, 213033 Patentee after: Jiangsu Yingtian Environmental Protection Technology Co.,Ltd. Address before: No. 1508, North Longjiang Road, Jiangbian Chemical Industry Park, Xinbei District, Changzhou City, Jiangsu Province, 213127 Patentee before: JIANGSU YINGTIAN CHEMICAL Co.,Ltd. |
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