CN110684185A - High-temperature-resistant anti-aging flexible unsaturated polyester resin - Google Patents
High-temperature-resistant anti-aging flexible unsaturated polyester resin Download PDFInfo
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- CN110684185A CN110684185A CN201911127641.2A CN201911127641A CN110684185A CN 110684185 A CN110684185 A CN 110684185A CN 201911127641 A CN201911127641 A CN 201911127641A CN 110684185 A CN110684185 A CN 110684185A
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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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/66—Polyesters containing oxygen in the form of ether groups
- C08G63/668—Polyesters containing oxygen in the form of ether groups derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/676—Polyesters containing oxygen in the form of ether groups derived from polycarboxylic acids and polyhydroxy compounds in which at least one of the two components contains aliphatic unsaturation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/06—Unsaturated polyesters
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- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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Abstract
The invention relates to a high-temperature-resistant anti-aging flexible unsaturated polyester resin, which relates to the technical field of glass fiber reinforced plastic pipelines and comprises the following components in parts by weight: 2-8 parts of phthalic anhydride, 1-5 parts of tetrahydrophthalic anhydride, 1-10 parts of maleic anhydride, 5-10 parts of diethylene glycol, 5-10 parts of dipropylene glycol, 1-10 parts of light calcium carbonate, 1-5 parts of white carbon black, 1-5 parts of aluminum-based adhesive and 5-10 parts of hydrophilic colloid. The glass fiber reinforced plastic pipe manufactured and molded by the glass fiber reinforced plastic pipe has higher rigidity, strong high temperature resistance and enhanced aging resistance, and the service life of the glass fiber reinforced plastic pipe is greatly prolonged.
Description
Technical Field
The invention relates to the technical field of unsaturated polyester resin, in particular to high-temperature-resistant and anti-aging flexible unsaturated polyester resin.
Background
The unsaturated polyester resin is a linear high molecular compound having an ester bond and an unsaturated double bond, which is generally obtained by polycondensation of unsaturated dibasic acid diol or saturated dibasic acid unsaturated diol, generally, polyesterification polycondensation is carried out at 190 ~ 220 ℃ until the desired acid value (or viscosity) is reached, after the polyesterification polycondensation is finished, a certain amount of vinyl monomer is added while hot to prepare a viscous liquid, and such a polymer solution is called unsaturated polyester resin.
The glass fiber reinforced plastic pipeline is made of resin (food-grade resin for conveying drinking water), glass fiber and quartz sand as raw materials by a special process. Because the unsaturated polyester resin used by the glass fiber reinforced plastic pipeline is special flexible resin, according to the foreign technical requirements: when the resin is cured, the gel time is 8-18 minutes; the curing time is as follows: 45-65 minutes; the exothermic peak temperature is 40-80 ℃, the tensile strength of the resin casting body is more than or equal to 10MPa, the elongation at break is more than or equal to 50%, and the impact toughness is more than or equal to 8KJ/m2Wherein the elongation at break is more than or equal to 50 percent is the most critical requirement (characteristic of flexible resin). At present, most of the existing unsaturated polyester resins in China are general resins, and have short curing time, high exothermic peak temperature (mostly above 160 ℃) and low elongation at break (mostly below 5%). Therefore, the conventional domestic unsaturated polyester resin is not suitable for manufacturing centrifugal casting glass reinforced plastic pipelines.
Disclosure of Invention
The invention aims to provide a high-temperature-resistant anti-aging flexible unsaturated polyester resin with reasonable design aiming at the defects and shortcomings of the prior art, and the glass fiber reinforced plastic pipe manufactured and molded by using the resin has higher rigidity, strong high-temperature resistance and enhanced aging resistance, and the service life of the glass fiber reinforced plastic pipe is greatly prolonged.
In order to achieve the purpose, the invention adopts the following technical scheme: the composition comprises the following components in parts by weight: 2-8 parts of phthalic anhydride, 1-5 parts of tetrahydrophthalic anhydride, 1-10 parts of maleic anhydride, 5-10 parts of diethylene glycol, 5-10 parts of dipropylene glycol, 1-10 parts of light calcium carbonate, 1-5 parts of white carbon black, 1-5 parts of aluminum-based adhesive and 5-10 parts of hydrophilic colloid.
Further, the high-temperature-resistant anti-aging flexible unsaturated polyester resin comprises the following components in parts by weight: 5-8 parts of phthalic anhydride, 3-5 parts of tetrahydrophthalic anhydride, 5-10 parts of maleic anhydride, 8-10 parts of diethylene glycol, 8-10 parts of dipropylene glycol, 8-10 parts of light calcium carbonate, 3-5 parts of white carbon black, 3-5 parts of aluminum-based adhesive and 8-10 parts of hydrophilic colloid.
Further, the high-temperature-resistant anti-aging flexible unsaturated polyester resin comprises the following components in parts by weight: 5 parts of phthalic anhydride, 4 parts of tetrahydrophthalic anhydride, 8 parts of maleic anhydride, 5 parts of diethylene glycol, 8 parts of dipropylene glycol, 10 parts of light calcium carbonate, 3 parts of white carbon black, 3 parts of aluminum-based adhesive and 8 parts of hydrophilic colloid.
Further, the aluminum-based binder is an aluminum-based binder at 649 ℃.
Further, the hydrophilic colloid is one or a mixture of sodium alginate and gum.
The preparation method of the invention comprises the following steps:
firstly, adding phthalic anhydride, tetrahydrophthalic anhydride, maleic anhydride, diethylene glycol and dipropylene glycol into a reaction kettle according to the molar ratio, heating to 160 ℃ to slowly react for 0.5h, then slowly heating to 205-210 ℃ to react for 20-25h with heat preservation, and obtaining a polycondensate;
secondly, adding the polycondensate obtained in the step one into styrene, wherein the weight ratio of the polycondensate to the styrene is 65: 35, and stirring and diluting the polycondensate and the styrene uniformly at the temperature of 50-85 ℃;
and thirdly, adding light calcium carbonate, white carbon black, an aluminum-based adhesive and hydrophilic colloid into the uniformly stirred and diluted mixture, and continuously stirring uniformly.
The invention has the beneficial effects that: the invention provides high-temperature-resistant anti-aging flexible unsaturated polyester resin, and a glass steel pipeline manufactured and molded by using the resin has high rigidity, strong high-temperature resistance and enhanced aging resistance, and the service life of the glass steel pipeline is greatly prolonged.
Description of the drawings:
FIG. 1 is a table comparing the properties of example one, example two and example three.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the following technical solutions are adopted in the present embodiment (example one): the composition comprises the following components in parts by weight: 8 parts of phthalic anhydride, 1 part of tetrahydrophthalic anhydride, 1-10 parts of maleic anhydride, 5 parts of diethylene glycol, 5 parts of dipropylene glycol, 1 part of light calcium carbonate, 5 parts of white carbon black, 1 part of 649 ℃ aluminum-based adhesive and 5 parts of hydrophilic colloid.
Further, the hydrophilic colloid is sodium alginate.
The preparation method of the embodiment is as follows:
firstly, adding the phthalic anhydride, tetrahydrophthalic anhydride, maleic anhydride, diethylene glycol and dipropylene glycol in parts by weight into a reaction kettle according to the molar ratio, heating to 160 ℃ for slow reaction for 0.5h, and then heating to 210 ℃ slowly for heat preservation reaction for 20h to obtain a polycondensate;
secondly, adding the polycondensate obtained in the step one into styrene, wherein the weight ratio of the polycondensate to the styrene is 65: 35, and stirring and diluting the polycondensate and the styrene uniformly at the temperature of 85 ℃;
and thirdly, adding the light calcium carbonate, the white carbon black, the aluminum-based adhesive and the hydrophilic colloid in parts by weight into the uniformly stirred and diluted mixture, and continuously stirring uniformly.
The beneficial effects of the embodiment are as follows: the specific embodiment provides the high-temperature-resistant anti-aging flexible unsaturated polyester resin, the glass fiber reinforced plastic pipeline manufactured and molded by using the high-temperature-resistant anti-aging flexible unsaturated polyester resin has high rigidity, high temperature resistance and enhanced aging resistance, and the service life of the glass fiber reinforced plastic pipeline is greatly prolonged.
Example two:
the high-temperature-resistant anti-aging flexible unsaturated polyester resin comprises the following components in parts by weight: 8 parts of phthalic anhydride, 3 parts of tetrahydrophthalic anhydride, 10 parts of maleic anhydride, 9 parts of diethylene glycol, 9 parts of dipropylene glycol, 10 parts of light calcium carbonate, 5 parts of white carbon black, 3 parts of 649 ℃ aluminum-based adhesive and 8 parts of hydrophilic colloid.
Further, the hydrocolloid is a gum.
The preparation method of this example is as follows:
firstly, adding the phthalic anhydride, tetrahydrophthalic anhydride, maleic anhydride, diethylene glycol and dipropylene glycol in parts by weight into a reaction kettle according to the molar ratio, heating to 160 ℃ for slow reaction for 0.5h, and then heating to 205 ℃ slowly for heat preservation reaction for 21h to obtain a polycondensate;
secondly, adding the polycondensate obtained in the step one into styrene, wherein the weight ratio of the polycondensate to the styrene is 65: 35, and stirring and diluting the polycondensate and the styrene uniformly at the temperature of 60 ℃;
and thirdly, adding the light calcium carbonate, the white carbon black, the aluminum-based adhesive and the hydrophilic colloid in parts by weight into the uniformly stirred and diluted mixture, and continuously stirring uniformly.
Example three:
the high-temperature-resistant anti-aging flexible unsaturated polyester resin comprises the following components in parts by weight: 5 parts of phthalic anhydride, 4 parts of tetrahydrophthalic anhydride, 8 parts of maleic anhydride, 5 parts of diethylene glycol, 8 parts of dipropylene glycol, 10 parts of light calcium carbonate, 3 parts of white carbon black, 3 parts of 649 ℃ aluminum-based adhesive and 8 parts of hydrophilic colloid.
Further, the hydrophilic colloid is formed by mixing sodium alginate and gum according to the mass ratio of 1: 1.
The preparation method of this example is as follows:
firstly, adding the phthalic anhydride, tetrahydrophthalic anhydride, maleic anhydride, diethylene glycol and dipropylene glycol in parts by weight into a reaction kettle according to the molar ratio, heating to 160 ℃ for slow reaction for 0.5h, and then heating to 210 ℃ slowly for heat preservation reaction for 25h to obtain a polycondensate;
secondly, adding the polycondensate obtained in the step one into styrene, wherein the weight ratio of the polycondensate to the styrene is 65: 35, and stirring and diluting the polycondensate uniformly at the temperature of 75 ℃;
and thirdly, adding the light calcium carbonate, the white carbon black, the aluminum-based adhesive and the hydrophilic colloid in parts by weight into the uniformly stirred and diluted mixture, and continuously stirring uniformly.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (6)
1. The high-temperature-resistant anti-aging flexible unsaturated polyester resin is characterized in that: the composition comprises the following components in parts by weight: 2-8 parts of phthalic anhydride, 1-5 parts of tetrahydrophthalic anhydride, 1-10 parts of maleic anhydride, 5-10 parts of diethylene glycol, 5-10 parts of dipropylene glycol, 1-10 parts of light calcium carbonate, 1-5 parts of white carbon black, 1-5 parts of aluminum-based adhesive and 5-10 parts of hydrophilic colloid.
2. The high temperature resistant anti-aging flexible unsaturated polyester resin according to claim 1, wherein: the high-temperature-resistant anti-aging flexible unsaturated polyester resin comprises the following components in parts by weight: 5-8 parts of phthalic anhydride, 3-5 parts of tetrahydrophthalic anhydride, 5-10 parts of maleic anhydride, 8-10 parts of diethylene glycol, 8-10 parts of dipropylene glycol, 8-10 parts of light calcium carbonate, 3-5 parts of white carbon black, 3-5 parts of aluminum-based adhesive and 8-10 parts of hydrophilic colloid.
3. The high temperature resistant anti-aging flexible unsaturated polyester resin according to claim 1, wherein: the high-temperature-resistant anti-aging flexible unsaturated polyester resin comprises the following components in parts by weight: 5 parts of phthalic anhydride, 4 parts of tetrahydrophthalic anhydride, 8 parts of maleic anhydride, 5 parts of diethylene glycol, 8 parts of dipropylene glycol, 10 parts of light calcium carbonate, 3 parts of white carbon black, 3 parts of aluminum-based adhesive and 8 parts of hydrophilic colloid.
4. The high temperature resistant anti-aging flexible unsaturated polyester resin according to claim 1, wherein: the aluminum-based adhesive is 649 ℃ aluminum-based adhesive.
5. The high temperature resistant anti-aging flexible unsaturated polyester resin according to claim 1, wherein: the hydrophilic colloid is one or a mixture of sodium alginate and gum.
6. The high-temperature-resistant anti-aging flexible unsaturated polyester resin is characterized in that: the preparation method comprises the following steps:
adding phthalic anhydride, tetrahydrophthalic anhydride, maleic anhydride, diethylene glycol and dipropylene glycol into a reaction kettle according to the molar ratio, heating to 160 ℃ for slow reaction for 0.5h, then heating to 205-210 ℃ slowly, and carrying out heat preservation reaction for 20-25h to obtain a polycondensate;
adding the polycondensate obtained in the step one into styrene, wherein the weight ratio of the polycondensate to the styrene is 65: 35, and stirring and diluting the polycondensate and the styrene uniformly at the temperature of 50-85 ℃;
and (III) adding light calcium carbonate, white carbon black, an aluminum-based adhesive and hydrophilic colloid into the uniformly stirred and diluted mixture, and continuously stirring uniformly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911127641.2A CN110684185A (en) | 2019-11-18 | 2019-11-18 | High-temperature-resistant anti-aging flexible unsaturated polyester resin |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911127641.2A CN110684185A (en) | 2019-11-18 | 2019-11-18 | High-temperature-resistant anti-aging flexible unsaturated polyester resin |
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| CN110684185A true CN110684185A (en) | 2020-01-14 |
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| CN201911127641.2A Pending CN110684185A (en) | 2019-11-18 | 2019-11-18 | High-temperature-resistant anti-aging flexible unsaturated polyester resin |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050277745A1 (en) * | 2004-06-02 | 2005-12-15 | Reichhold, Inc. | Impact resistant, low shrinkage reinforced molding compositions |
| CN101925638A (en) * | 2008-03-31 | 2010-12-22 | 三洋化成工业株式会社 | Binder for glass chopped strand mats |
| WO2012066244A1 (en) * | 2010-11-17 | 2012-05-24 | Arkema France | Masterbatch of carbon nanotubes and curing agent for thermosetting resins |
| CN103524685A (en) * | 2013-09-30 | 2014-01-22 | 常州天马瑞盛复合材料有限公司 | Unsaturated polyester resin dedicated to manufacturing mining anchor rods and preparation method thereof |
| CN106883353A (en) * | 2017-02-22 | 2017-06-23 | 常州天马集团有限公司（原建材二五三厂） | A kind of flexible unsaturated polyester resin of spun casting GRP pipe |
| CN109251308A (en) * | 2018-08-14 | 2019-01-22 | 安徽汇创新材料有限公司 | One kind being suitable for glass toughening manure pit high temperature resistant unsaturated polyester resin and preparation method thereof |
-
2019
- 2019-11-18 CN CN201911127641.2A patent/CN110684185A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050277745A1 (en) * | 2004-06-02 | 2005-12-15 | Reichhold, Inc. | Impact resistant, low shrinkage reinforced molding compositions |
| CN101925638A (en) * | 2008-03-31 | 2010-12-22 | 三洋化成工业株式会社 | Binder for glass chopped strand mats |
| WO2012066244A1 (en) * | 2010-11-17 | 2012-05-24 | Arkema France | Masterbatch of carbon nanotubes and curing agent for thermosetting resins |
| CN103524685A (en) * | 2013-09-30 | 2014-01-22 | 常州天马瑞盛复合材料有限公司 | Unsaturated polyester resin dedicated to manufacturing mining anchor rods and preparation method thereof |
| CN106883353A (en) * | 2017-02-22 | 2017-06-23 | 常州天马集团有限公司（原建材二五三厂） | A kind of flexible unsaturated polyester resin of spun casting GRP pipe |
| CN109251308A (en) * | 2018-08-14 | 2019-01-22 | 安徽汇创新材料有限公司 | One kind being suitable for glass toughening manure pit high temperature resistant unsaturated polyester resin and preparation method thereof |
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Application publication date: 20200114 |