CN106883353A - A kind of flexible unsaturated polyester resin of spun casting GRP pipe - Google Patents
A kind of flexible unsaturated polyester resin of spun casting GRP pipe Download PDFInfo
- Publication number
- CN106883353A CN106883353A CN201710123275.8A CN201710123275A CN106883353A CN 106883353 A CN106883353 A CN 106883353A CN 201710123275 A CN201710123275 A CN 201710123275A CN 106883353 A CN106883353 A CN 106883353A
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- CN
- China
- Prior art keywords
- polyester resin
- unsaturated polyester
- spun casting
- grp pipe
- condensation polymer
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- 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
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/01—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to unsaturated polyesters
-
- 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
-
- 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
- C08G63/78—Preparation processes
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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)
- Polyesters Or Polycarbonates (AREA)
Abstract
A kind of flexible unsaturated polyester resin of spun casting GRP pipe, the present invention relates to unsaturated polyester resin technical field；It includes following component：Phthalic anhydride, THPA, maleic anhydride, diglycol and dipropylene glycol, the mol ratio between each component is：3.3: 1.2: 1.0~1.1: 3.5: 2.2~2.4.Its exothermic peak temperature is low, elongation at break is high, and is exclusively used in spun casting GRP pipe.
Description
Technical field
The present invention relates to unsaturated polyester resin technical field, and in particular to a kind of spun casting GRP pipe it is soft
Property unsaturated polyester resin.
Background technology
Last century the nineties are reformed and opened up to the outside world with China, numerous and confused public from Switzerland Huo Basi (HOBAS) with interior many enterprises
Department introduces international advanced technology equipment --- spun casting glass fiber reinforced plastics pipeline production line, the HOBAS pipes of production plurality of specifications, in state
Interior plumbing municipal works in Hydraulic Projects construction in particular for being widely applied.HOBAS is to being also spun casting glass fibers
Dimension enhancing unsaturated polyester resin clamp sand pipe, is a kind of using a full set of computer controls, is cast with centrifugal action
Fiberglass sand inclusion composite material tube.It is made up of unsaturated polyester resin, short glass fiber, quartz sand and filler.
HOBAS pipe performance characteristics：It is corrosion-resistant, it is not necessary to internal external anticorrosive coating treatment；It is easy to install, can on-site cutting；Tube wall
Compact structure, solid, durable in use, service life was up to more than 50 years；Inner wall smooth, head loss is small, and pumping cost is low；
FWC joint tighnesses and shock resistance are good, easy for installation；It is lightweight, it is easy to install；Smooth outer surface, erecting bed is appointed in pipe
Can connection after what position cutting chamfering.Product purpose：It is widely portable to feed pipe, drainpipe, sanitary sewer, pressure-bearing dirty
Water pipe, subaqueous pipe, push pipe, seawater delivery pipe, discharge of industrial wastes pipe, industrial wastewater, exhaust-gas treatment pipe etc..
Because unsaturated polyester resin used by HOBAS pipelines is extraordinary flexible resin, required according to foreign technology：Resin is consolidated
During change, gel time is 8~18 points；Hardening time is：45~65 points；Exothermic peak temperature is 40~80 DEG C, casting resin
Tensile strength >=10MPa, elongation at break >=50%, impact flexibility >=8KJ/m2, wherein elongation at break >=50% is most to close
Key requirement (feature of flexible resin).
The current existing unsaturated polyester resin of China is mostly resins for universal use, and hardening time is short, exothermic peak temperature is high (big
It is many more than 160 DEG C), elongation at break it is low (mostly below 5%).Therefore, existing domestic unsaturated polyester resin is uncomfortable
Preferably manufacture spun casting GRP pipe (HOBAS pipes).
The content of the invention
Defect and deficiency it is an object of the invention to be directed to prior art, there is provided a kind of simple structure, it is reasonable in design
The flexible unsaturated polyester resin of spun casting GRP pipe, its exothermic peak temperature is low, elongation at break is high, and is exclusively used in
Spun casting GRP pipe.
To achieve the above object, the technical solution adopted by the present invention is：It includes following component：Phthalic anhydride, four
Hydrogen phthalic anhydride, maleic anhydride, diglycol and dipropylene glycol, the mol ratio between each component is：3.3∶1.2
: 1.0~1.1: 3.5: 2.2~2.4.
Its preparation method is as follows：
First, by phthalic anhydride, THPA, maleic anhydride, diglycol and dipropylene glycol
Be added in reactor according to above-mentioned mol ratio, be first warming up to 160 DEG C of slow reaction 0.5h, be then to slowly warm up to 205 DEG C~
210 DEG C of insulation reaction 20-25h, obtain condensation polymer；
2nd, the condensation polymer that will be obtained in step one is added in styrene, and condensation polymer compares 65: 35 with the weight of styrene,
Agitation and dilution is uniform at a temperature of 50 DEG C~85 DEG C, you can.
The terminal of the melt polycondensation reaction in described step one is that the Gardner bubble viscosity of material in reactor reaches
R~S, acid number reach 10mgKOH/g~16mgKOH/g.
The present invention has the beneficial effect that：A kind of flexible unsaturated polyester (UP) of spun casting GRP pipe of the present invention
Resin, prepares unsaturated polyester resin by selecting flexible component and its proportioning, and in preparation process by acid number and
Viscosity controls reaction end, so as to effectively control the optimal compliance of unsaturated polyester resin, may finally obtain exothermic peak
The flexible unsaturated polyester resin for being exclusively used in spun casting GRP pipe that temperature is low, elongation at break is high, present invention tool
There is a simple structure, set reasonable, the advantages of low manufacture cost.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
Other accompanying drawings are obtained with according to these accompanying drawings.
Fig. 1 is the performance comparison table of embodiment one, embodiment two and embodiment three.
Specific embodiment
Referring to Fig. 1, the technical scheme that this specific embodiment (embodiment one) is used is：It includes following component：Adjacent benzene
Dicarboxylic acid anhydride, THPA, maleic anhydride, diglycol and dipropylene glycol, between each component mole
Than for：3.3∶1.2∶1.05∶3.5∶2.3.
Its preparation method is as follows：
First, by phthalic anhydride, THPA, maleic anhydride, diglycol and dipropylene glycol
Be added in reactor according to above-mentioned mol ratio, be first warming up to 160 DEG C of slow reaction 0.5h, be then to slowly warm up to 205 DEG C~
210 DEG C of insulation reaction 22h, obtain condensation polymer；
2nd, the condensation polymer that will be obtained in step one is added in styrene, and condensation polymer compares 65: 35 with the weight of styrene,
Agitation and dilution is uniform at a temperature of 70 DEG C, you can.
The terminal of the melt polycondensation reaction in described step one is that the Gardner bubble viscosity of material in reactor reaches
R~S, acid number reach 13mgKOH/g.
This specific embodiment has the beneficial effect that：A kind of spun casting GRP pipe described in this specific embodiment is used
Flexible unsaturated polyester resin, by selecting flexible component and its proportioning to prepare unsaturated polyester resin, and preparing
During reaction end is controlled by acid number and viscosity so that effectively control unsaturated polyester resin optimal compliance, most
It is unsaturated poly- that the flexibility for being exclusively used in spun casting GRP pipe that exothermic peak temperature is low, elongation at break is high can be obtained eventually
Ester resin, the present invention has simple structure, and it is reasonable to set, the advantages of low manufacture cost.
Embodiment two：
The present embodiment includes following component：Phthalic anhydride, THPA, maleic anhydride, diglycol
And dipropylene glycol, the mol ratio between each component is：3.3∶1.2∶1.0∶3.5∶2.3.
Its preparation method is as follows：
First, by phthalic anhydride, THPA, maleic anhydride, diglycol and dipropylene glycol
Be added in reactor according to above-mentioned mol ratio, be first warming up to 160 DEG C of slow reaction 0.5h, be then to slowly warm up to 205 DEG C~
210 DEG C of insulation reaction 23h, obtain condensation polymer；
2nd, the condensation polymer that will be obtained in step one is added in styrene, and condensation polymer compares 65: 35 with the weight of styrene,
Agitation and dilution is uniform at a temperature of 70 DEG C, you can.
The terminal of the melt polycondensation reaction in described step one is that the Gardner bubble viscosity of material in reactor reaches
R~S, acid number reach 12mgKOH/g.
Embodiment two：
The present embodiment includes following component：Phthalic anhydride, THPA, maleic anhydride, diglycol
And dipropylene glycol, the mol ratio between each component is：3.3∶1.2∶1.1∶3.5∶2.3.
Its preparation method is as follows：
First, by phthalic anhydride, THPA, maleic anhydride, diglycol and dipropylene glycol
Be added in reactor according to above-mentioned mol ratio, be first warming up to 160 DEG C of slow reaction 0.5h, be then to slowly warm up to 205 DEG C~
210 DEG C of insulation reaction 22h, obtain condensation polymer；
2nd, the condensation polymer that will be obtained in step one is added in styrene, and condensation polymer compares 65: 35 with the weight of styrene,
Agitation and dilution is uniform at a temperature of 70 DEG C, you can.
The terminal of the melt polycondensation reaction in described step one is that the Gardner bubble viscosity of material in reactor reaches
R~S, acid number reach 14mgKOH/g.
The above, is merely illustrative of the technical solution of the present invention and unrestricted, and those of ordinary skill in the art are to this hair
Other modifications or equivalent that bright technical scheme is made, without departing from the spirit and scope of technical solution of the present invention,
All should cover in the middle of scope of the presently claimed invention.
Claims (3)
1. a kind of flexible unsaturated polyester resin of spun casting GRP pipe, it is characterised in that：It includes following component：
Phthalic anhydride, THPA, maleic anhydride, diglycol and dipropylene glycol, between each component
Mol ratio is：3.3: 1.2: 1.0~1.1: 3.5: 2.2~2.4.
2. a kind of flexible unsaturated polyester resin of spun casting GRP pipe, it is characterised in that：Its preparation method is such as
Under：
(1), phthalic anhydride, THPA, maleic anhydride, diglycol and dipropylene glycol are pressed
It is added in reactor according to above-mentioned mol ratio, is first warming up to 160 DEG C of slow reaction 0.5h, is then to slowly warm up to 205 DEG C~210
DEG C insulation reaction 20-25h, obtains condensation polymer；
(2), the condensation polymer that will be obtained in step (1) is added in styrene, and condensation polymer compares 65: 35 with the weight of styrene,
Agitation and dilution is uniform at a temperature of 50 DEG C~85 DEG C, you can.
3. a kind of flexible unsaturated polyester resin of spun casting GRP pipe according to claim 1, its feature
It is: the terminal of the melt polycondensation reaction in described step () is that the Gardner bubble viscosity of material in reactor reaches R
~S, acid number reach 10mgKOH/g~16mgKOH/g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710123275.8A CN106883353A (en) | 2017-02-22 | 2017-02-22 | A kind of flexible unsaturated polyester resin of spun casting GRP pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710123275.8A CN106883353A (en) | 2017-02-22 | 2017-02-22 | A kind of flexible unsaturated polyester resin of spun casting GRP pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106883353A true CN106883353A (en) | 2017-06-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710123275.8A Pending CN106883353A (en) | 2017-02-22 | 2017-02-22 | A kind of flexible unsaturated polyester resin of spun casting GRP pipe |
Country Status (1)
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| CN (1) | CN106883353A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109776777A (en) * | 2018-12-25 | 2019-05-21 | 武汉深蓝海工新型材料科技有限责任公司 | A kind of unsaturated polyester (UP) synthetic method for tubular molding compound |
| CN110684185A (en) * | 2019-11-18 | 2020-01-14 | 常州天马集团有限公司（原建材二五三厂） | High-temperature-resistant anti-aging flexible unsaturated polyester resin |
| CN111471288A (en) * | 2020-05-15 | 2020-07-31 | 刘刚 | Socket casting agent |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61174256A (en) * | 1985-01-30 | 1986-08-05 | Nippon Shokubai Kagaku Kogyo Co Ltd | Ultraviolet-curable resin composition |
| CN103183784A (en) * | 2011-12-29 | 2013-07-03 | 江苏长三角精细化工有限公司 | High pressure glass fiber reinforced plastic pipeline resin used for oil fields |
-
2017
- 2017-02-22 CN CN201710123275.8A patent/CN106883353A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61174256A (en) * | 1985-01-30 | 1986-08-05 | Nippon Shokubai Kagaku Kogyo Co Ltd | Ultraviolet-curable resin composition |
| CN103183784A (en) * | 2011-12-29 | 2013-07-03 | 江苏长三角精细化工有限公司 | High pressure glass fiber reinforced plastic pipeline resin used for oil fields |
Non-Patent Citations (5)
| Title |
|---|
| 徐思亭 主编: "《塑料材料与助剂》", 31 July 2007, 天津大学出版社 * |
| 李晓峰: ""柔性不饱和聚酯树脂合成研究"", 《工程塑料应用》 * |
| 杨群 等: ""柔性不饱和聚酯树脂的研究进展"", 《塑料工业》 * |
| 杨群 等: ""聚醚二元醇不饱和聚酯树脂及其柔性固化体系"", 《热固性树脂》 * |
| 车剑飞 等编: "《复合材料及其工程应用》", 31 August 2006, 机械工业出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109776777A (en) * | 2018-12-25 | 2019-05-21 | 武汉深蓝海工新型材料科技有限责任公司 | A kind of unsaturated polyester (UP) synthetic method for tubular molding compound |
| CN110684185A (en) * | 2019-11-18 | 2020-01-14 | 常州天马集团有限公司（原建材二五三厂） | High-temperature-resistant anti-aging flexible unsaturated polyester resin |
| CN111471288A (en) * | 2020-05-15 | 2020-07-31 | 刘刚 | Socket casting agent |
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Application publication date: 20170623 |