CN103833919B - A kind of air-dried unsaturated polyester resin and production method thereof - Google Patents
A kind of air-dried unsaturated polyester resin and production method thereof Download PDFInfo
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- CN103833919B CN103833919B CN201410047392.7A CN201410047392A CN103833919B CN 103833919 B CN103833919 B CN 103833919B CN 201410047392 A CN201410047392 A CN 201410047392A CN 103833919 B CN103833919 B CN 103833919B
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Abstract
The invention discloses a kind of air-dried unsaturated polyester resin and production method thereof, by weight, its raw material comprises dimeracid 200-220 part; Tetrahydrophthalic anhydride 1200-1300 part; Cis-butenedioic anhydride 700-750 part; Propylene glycol 1150-1200 part; Neopentyl glycol 280-300 part; Triphenyl phosphite 1.150-1.25 part; Stopper QS-200.5-0.6 part; Vinylbenzene 1400-1500 part; Defoamer BYK-A5550.5-1.5 part and flow agent BYK-3070.4-0.6 part.The invention also discloses the production method of this resin.
Description
Technical field
The present invention relates to a kind of production method of vibrin, relate to a kind of method of air-dried unsaturated polyester resin particularly.
Background technology
Unsaturated polyester resin is one the most frequently used in thermosetting resin, is generally the chain macromolecule compound with ester bond and unsaturated double-bond by unsaturated dibasic acid dibasic alcohol or the unsaturated dibasic alcohol polycondensation of monounsaturated dicarboxylic acid.Usually, polyesterification polycondensation carries out at 190 ~ 220 DEG C, until reach the acid number (or viscosity) of expection, after polyesterification contracting reaction terminates, add a certain amount of vinyl monomer while hot, be made into the liquid of thickness, such polymers soln is referred to as unsaturated polyester resin.
Structure according to unsaturated polyester resin can be divided into adjacent benzene-type, metaphenylene, p-phenyl, bisphenol A-type, vinyl ester type etc.; Universal, anti-corrosive type, self-extinguishing type, heat resistant type, lower shrinkage type etc. can be divided into according to its performance; Glass reinforced plastic (FRP) resin and the large class of non-glass steel resin two can be divided into according to its main application.
Air-dried unsaturated polyester resin refers to the very fast dry resinoid of the rear product surface of solidification.Surface drying speed is slow after hardening for conventional unsaturated polyester resin, air-dried unsaturated polyester resin solidification rear surface rate of drying is than very fast, for the coating prod of 1mm thickness, under equal conditions solidify (temperature 25 DEG C, humidity ﹤ 80%), the time of drying of good air-drying property resin surface, the time of drying of usual resins was generally greater than 60 minutes at about 30 minutes.
The shortcoming of prior art air-drying property resin:
1, existing air-drying property resin regulates air-drying property by the consumption adjusting paraffin, but paraffin consumption is few, and air-drying property is poor; Paraffin consumption is many, and after solidification, the transparency of product is bad, is difficult to control.
2, existing air-drying property resin be PE paint hardness high, sanding and polishing difficulty.
3, shorter, the general quality guaranteed period in existing air-drying property resin storage time only has 6 months (less than 25 DEG C, lucifuge, sealing).
Summary of the invention
The object of the present invention is to provide a kind of method of producing air-dried unsaturated polyester resin, to solve the above-mentioned problems in the prior art.
Technical scheme provided by the invention is as follows:
A kind of air-dried unsaturated polyester resin, it is characterized in that, by weight, this air-dried unsaturated polyester resin comprises following raw material:
Wherein, in dimeracid, dimer content preferably more than 90%, more preferably more than 95%.
A production method for air-dried unsaturated polyester resin, comprises the steps:
1), according to aforesaid component be equipped with raw material, and raw material is divided into A, B group, wherein A group comprises
B group comprises
2), in reactor, drop into A group raw material, heat up, after 0.4-0.6 hour, crawl stirs, heat-up rate 5-10 degree/hour, start reaction stirrer when material is warming up to 110-130 DEG C, continue temperature reaction for nitrogen;
3), when heating up in a steamer a temperature rise to 98 ~ 100 DEG C of vertical (type) condensers water supply, control to heat up in a steamer a temperature at 100 ~ 102 DEG C, insulation reaction 0.8-1.2 hour after water outlet, insulation terminates to continue intensification, controls every 30 minutes temperature of reaction rising 5-6 DEG C;
4), when material temperature rises to 208 DEG C start constant temperature, control temperature of reaction and be no more than 210 DEG C;
5), when reaction to acid number reduce to 55-60mgKOH/g, Cone & Plate viscosity vacuumizes when rising to 0.9-1P, control nitrogen flow, vacuumize when reaction to acid number reduces to 30-33mgKOH/g, Cone & Plate viscosity rises to 2.8-4P and remove vacuum, then start cooling, cooling rate scope be 15-25 degree/hour;
6), cool: in reactor, drop into the stopper in B group when being cooled to 180 DEG C, and be uniformly mixed; When being cooled to 160 DEG C, open reactor dilution tunnel valve and dilute, after material discharges, reactor can proceed the production of next batch resin; Before material dilution, in dilution still, vinylbenzene should be squeezed in advance;
7), dilution time, dilution still in resin temperature should keep 70-90 DEG C, resin is uniformly mixed 0.5-1.5h in this temperature range;
8), dilution temperature is down to less than 65 DEG C and adds defoamer BYK-A555 and flow agent BYK-307, and after stirring, sampling detects finished product index, and adjustment index filters and packages after qualified.
Wherein, step 5) available nitrogen solution vacuum, nitrogen flow control as 25-35M
3/ h.
Wherein, also comprise step 9) resin and filter through filter, after removing solid impurity, carry out bucket packaging.
The present invention compares with background technology, solves the following problem of existing air-dried unsaturated polyester resin:
1, the present invention fills a prescription and adopts tetrahydrophthalic anhydride, propylene glycol and neopentyl glycol, efficiently solving when not adding paraffin, improving the air-drying property after resin solidification, increase the transparency after resin solidification.
2, formula effectively increases the toughness of air-drying property resin, facilitates sanding and polishing after making it solidification.
3, formula of the present invention and method can make the shelf lives of air-drying property resin extend to 12 months (less than 25 DEG C, lucifuge, sealing).
4, solve the production technique problem of this formula material, can suitability for industrialized production be carried out.
Embodiment
Embodiment 1 produces air-dried unsaturated polyester resin for 3600 liters of reactors
Raw material
React the A that feeds intake
Cool, dilution step feeds intake B
Production stage
1, monitoring device, pipeline, electrical equipment, instrument, checks raw material types and quantity.
2, in reactor, drop into reaction to feed intake A: dibasic alcohol, diprotic acid (acid anhydride), triphenyl phosphite and QS-20 etc. heat up, 10 degree/hour, after 0.5 hour, crawl stirring, starts reaction stirrer, for nitrogen 4M when material is warming up to 120 DEG C
3/ h also continues temperature reaction.
3, rising to 98 ~ 100 DEG C of vertical (type) condensers water supply when heating up in a steamer a temperature, controlling to heat up in a steamer a temperature at 100 ~ 102 DEG C, insulation reaction 1 hour after water outlet.Insulation terminates to continue to heat up, and controls every 30 minutes temperature of reaction rising 5-6 DEG C.
4, start constant temperature when material temperature rises to 208 DEG C, control temperature of reaction and be no more than 210 DEG C.
5, when reaction to acid number reduce to 55-60mgKOH/g, Cone & Plate viscosity vacuumizes when rising to 0.9-1P, nitrogen flow controls at 0.5M
3/ h, vacuumizes and removes vacuum when reaction to acid number reduces to 30-33mgKOH/g, Cone & Plate viscosity rises to 2.8-4P and (control to be 30M with nitrogen solution vacuum, nitrogen flow
3/ h), then start cooling, cooling rate is 20 degree/h.
6, cool. in reactor, drop into QS-20400g when being cooled to 180 DEG C and be uniformly mixed. when being cooled to 160 DEG C, opening reactor dilution tunnel valve and dilute. after material discharges, reactor can proceed the production of next batch resin.
7, before material dilution, in dilution still, vinylbenzene should be squeezed in advance.
8, during dilution, in dilution still, resin temperature should keep 70-90 DEG C, and resin is uniformly mixed 1hr. in this temperature range
9, dilute temperature to be down to less than 65 DEG C and to add defoamer BYK-A555 and BYK-307, after stirring, sampling detects finished product index, and adjustment index filters and packages after qualified.
10, resin filters through filter, carries out bucket packaging after removing solid impurity.
In above production of resins process, in reaction process with Cone & Plate viscosity and acid number for qualifying point.
The index of present embodiment resin
Voltinism index (first grade)
The micro-yellow transparent thick liquid of outward appearance, mechanical impurity
Stability in storage 80 DEG C >=48h;
25 DEG C, the moon >=September
Less than 25 DEG C, lucifuge, sealing >=12 month.
Wherein, the curing system that the gelation time of air-drying property coating resin detects is:
1.8% promotor YB+1.8% methylethyl ketone peroxide, wherein, promotor YB is the different Rinmann's green solution of concentration 1%; Methylethyl ketone peroxide: V388(Tianjin Aksu company produces).
Embodiment 2 produces air-dried unsaturated polyester resin for 3600 liters of reactors
Raw material
React the A that feeds intake
Cool, dilution step feeds intake B
Production stage
1, monitoring device, pipeline, electrical equipment, instrument, checks raw material types and quantity.
2, in reactor, drop into reaction to feed intake A: dibasic alcohol, diprotic acid (acid anhydride), triphenyl phosphite and QS-20 etc. heat up, after 0.5 hour, crawl stirs, and 10 degree/hour, starts reaction stirrer when material is warming up to 120 DEG C, for nitrogen 4M
3/ h also continues temperature reaction.
3, rising to 98 ~ 100 DEG C of vertical (type) condensers water supply when heating up in a steamer a temperature, controlling to heat up in a steamer a temperature at 100 ~ 102 DEG C, insulation reaction 1 hour after water outlet.Insulation terminates to continue to heat up, and controls every 30 minutes temperature of reaction rising 5-6 DEG C;
4, start constant temperature when material temperature rises to 208 DEG C, control temperature of reaction and be no more than 210 DEG C.
5, when reaction to acid number reduce to 55-60mgKOH/g, Cone & Plate viscosity vacuumizes when rising to 0.9-1P, nitrogen flow controls at 0.5M
3/ h, vacuumizes and removes vacuum when reaction to acid number reduces to 30-33mgKOH/g, Cone & Plate viscosity rises to 2.8-4P and (control to be 35M with nitrogen solution vacuum, nitrogen flow
3/ h), then start cooling.Cooling rate is 15 DEG C/h.
6, cooling, in reactor, drop into QS-20400g when being cooled to 180 DEG C and be uniformly mixed. when being cooled to 160 DEG C, open reactor dilution tunnel valve and dilute, after material discharges, reactor can proceed the production of next batch resin.
7, before material dilution, in dilution still, vinylbenzene should be squeezed in advance.
8, during dilution, in dilution still, resin temperature should keep 70-90 DEG C, and resin is uniformly mixed 1hr. in this temperature range
9, dilute temperature to be down to less than 65 DEG C and to add defoamer BYK-A555 and BYK-307, after stirring, sampling detects finished product index, and adjustment index filters and packages after qualified.
10, resin filters through filter, carries out bucket packaging after removing solid impurity.
In above production of resins process, in reaction process with Cone & Plate viscosity and acid number for qualifying point.
The index of present embodiment resin
Voltinism index (first grade)
The micro-yellow transparent thick liquid of outward appearance, mechanical impurity
Stability in storage 80 DEG C >=48h; 80 DEG C >=48h;
25 DEG C, the moon >=September
Less than 25 DEG C, lucifuge, sealing >=12 month.
Wherein, the curing system that the gelation time of air-drying property coating resin detects is:
1.8% promotor YB+1.8% methylethyl ketone peroxide, wherein, promotor YB is the different Rinmann's green solution of concentration 1%; Methylethyl ketone peroxide: V388(Tianjin Aksu company produces).
Claims (2)
1. a production method for air-dried unsaturated polyester resin, wherein, this air-dried unsaturated polyester resin, by weight, comprises following raw material:
Method comprises the steps:
1), according to aforesaid component be equipped with raw material, and raw material is divided into A, B group, wherein A group comprises
B group comprises
2), in reactor, drop into A group raw material, heat up, after 0.4-0.6 hour, crawl stirs, and heat-up rate 5-10 DEG C/h, starts reaction stirrer when material is warming up to 110-130 DEG C, continues temperature reaction for nitrogen;
3), when heating up in a steamer a temperature rise to 98 ~ 100 DEG C of vertical (type) condensers water supply, control to heat up in a steamer a temperature at 100 ~ 102 DEG C, insulation reaction 0.8-1.2 hour after water outlet, insulation terminates to continue intensification, controls every 30 minutes temperature of reaction rising 5-6 DEG C;
4), when material temperature rises to 208 DEG C start constant temperature, control temperature of reaction and be no more than 210 DEG C;
5), when reaction to acid number reduce to 55-60mgKOH/g, Cone & Plate viscosity vacuumizes when rising to 0.9-1P, control nitrogen flow, vacuumize when reaction to acid number reduces to 30-33mgKOH/g, Cone & Plate viscosity rises to 2.8-4P and remove vacuum, then start cooling, cooling rate scope is 15-25 DEG C/h;
6), cool: in reactor, drop into the stopper in B group when being cooled to 180 DEG C, and be uniformly mixed; When being cooled to 160 DEG C, open reactor dilution tunnel valve and dilute, after material discharges, reactor can proceed the production of next batch resin; Before material dilution, in dilution still, vinylbenzene should be squeezed in advance;
7), dilution time, dilution still in resin temperature should keep 70-90 DEG C, resin is uniformly mixed 0.5-1.5h in this temperature range;
8), dilution temperature is down to less than 65 DEG C and adds defoamer BYK-A555 and flow agent BYK-307, and after stirring, sampling detects finished product index, and adjustment index filters and packages after qualified.
2. the production method of a kind of air-dried unsaturated polyester resin as claimed in claim 1, is characterized in that: step 5) with nitrogen remove vacuum, nitrogen flow control be 25-35M
3/ h.
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| CN201410047392.7A CN103833919B (en) | 2014-02-11 | 2014-02-11 | A kind of air-dried unsaturated polyester resin and production method thereof |
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| CN201410047392.7A CN103833919B (en) | 2014-02-11 | 2014-02-11 | A kind of air-dried unsaturated polyester resin and production method thereof |
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| CN103833919B true CN103833919B (en) | 2016-04-13 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104650299B (en) * | 2015-01-31 | 2018-08-28 | 宜兴市兴合树脂有限公司 | A kind of button unsaturated polyester resin and preparation method thereof |
| CN104926998B (en) * | 2015-01-31 | 2018-06-22 | 宜兴市兴合树脂有限公司 | A kind of tubular molding compound unsaturated polyester resin and preparation method thereof |
| CN105906793A (en) * | 2016-06-25 | 2016-08-31 | 成都杰晟蜀邦新材料科技有限公司 | Water-based unsaturated polyester resin and preparation method thereof |
| CN106674504A (en) * | 2016-12-23 | 2017-05-17 | 仲恺农业工程学院 | Method for synthesizing unsaturated polyester by using C36 dimer fatty acid |
| CN107936185A (en) * | 2017-12-15 | 2018-04-20 | 仲恺农业工程学院 | A kind of modified unsaturated polyester resin and preparation method thereof |
| CN108499487A (en) * | 2018-03-19 | 2018-09-07 | 江苏大力士投资有限公司 | A kind of production system and its production method of unsaturated-resin |
| CN109180921A (en) * | 2018-09-11 | 2019-01-11 | 惠州市固德尔合成材料有限公司 | A kind of neighbour's benzene-type photocuring unsaturated polyester resin and preparation method thereof |
| CN113087853A (en) * | 2021-04-26 | 2021-07-09 | 宜兴市兴合树脂有限公司 | Pultrusion resin for producing frame structure for shallow sea cultivation |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101602849A (en) * | 2009-07-09 | 2009-12-16 | 湖南大学 | Dimer acid modified unsaturated polyester resin and synthetic method thereof |
| CN101805430A (en) * | 2010-03-19 | 2010-08-18 | 新时代(济南)民爆科技产业有限公司 | Air-drying chemical corrosion resistant unsaturated resin and production process thereof |
| CN102766237A (en) * | 2012-07-31 | 2012-11-07 | 常州华科树脂有限公司 | Air-drying unsaturated polyester resin for wood coatings, wood coatings containing polyester resin and preparation method of wood coatings |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3539460B2 (en) * | 1995-11-16 | 2004-07-07 | 日立化成工業株式会社 | Unsaturated polyester resin composition and putty paint |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101602849A (en) * | 2009-07-09 | 2009-12-16 | 湖南大学 | Dimer acid modified unsaturated polyester resin and synthetic method thereof |
| CN101805430A (en) * | 2010-03-19 | 2010-08-18 | 新时代(济南)民爆科技产业有限公司 | Air-drying chemical corrosion resistant unsaturated resin and production process thereof |
| CN102766237A (en) * | 2012-07-31 | 2012-11-07 | 常州华科树脂有限公司 | Air-drying unsaturated polyester resin for wood coatings, wood coatings containing polyester resin and preparation method of wood coatings |
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