CN100358931C - Tech. for synthesizing high toughness epoxy vinyl ester resin - Google Patents
Tech. for synthesizing high toughness epoxy vinyl ester resin Download PDFInfo
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- CN100358931C CN100358931C CNB2005101105228A CN200510110522A CN100358931C CN 100358931 C CN100358931 C CN 100358931C CN B2005101105228 A CNB2005101105228 A CN B2005101105228A CN 200510110522 A CN200510110522 A CN 200510110522A CN 100358931 C CN100358931 C CN 100358931C
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Abstract
The present invention relates to high-tenacity epoxy vinyl ester resin and a synthesizing method thereof. On the technical basis that the existing organic monad unsaturated carboxylic acid carries out open loop esterification reaction with epoxy resin, organic saturated dicarboxylic acid (hexanedioic acid or sebacic acid) and an end carboxy liquid nitrile butadiene glue (the content of acrylonitrile is from 10% to 26%) soft group are induced so that the toughness of resin is greatly enhanced; the elongation percentage at rupture of a resin cast body is from 8% to 16%; the impact strength is from 20KJ /m<2> to 30KJ /m<2>. The present invention can satisfy the special requirement of the industrial production of glass fiber reinforced plastics. The present invention has the advantages of simple synthesizing technology, environmental protection, no generation of three kinds of waste and high stability of products.
Description
Technical field
The present invention relates to a kind of epoxy vinyl ester resin and synthesis technique thereof of high tenacity.
Background technology
Molecule two ends of epoxy vinyl ester resin contain the vinyl ester group, and middle skeleton is a Resins, epoxy, and they are to carry out the esterification by ring opening reaction by unsaturated organic monocarboxylic acid and Resins, epoxy to obtain.Epoxy vinyl ester resin is owing to have the excellent corrosion resistance and the mechanical property of Resins, epoxy concurrently, have unsaturated polyester resin machine-shaping processing performance easily again, become at present the main body material of corrosion-resistant glass fiber reinforced plastics product, application surface is very wide, spreads all over the protection against corrosion field of national economy all departments such as chemical industry, metallurgy, building.
Although the high comprehensive performance of epoxy vinyl ester resin, the performance of some aspect can't satisfy the particular requirement of some glass fiber reinforced plastics product as shock strength and tension set.Carry out the epoxy vinyl ester resin that the esterification by ring opening reaction obtains by unsaturated organic monocarboxylic acid and Resins, epoxy, lack flexible group in the molecular structure, the tension set of its casting resin only is 3～6%, shock strength 5～8KJ/m
2, the requirement that does not obviously reach tension set＞8% of some its matrix resin of glass fiber reinforced plastics product.So the epoxy vinyl ester resin of developing a kind of high tension set and high impact just has the urgency in its application.
Summary of the invention
The epoxy vinyl ester resin that the purpose of this invention is to provide a kind of high tenacity, its high tension set and high impact can satisfy the special requirement that glass reinforced plastic is produced.
For achieving the above object, the technical scheme that adopts is: a kind of epoxy vinyl ester resin of high tenacity has catalyzer and the reaction of stopper existence carrying out esterification by ring opening by bisphenol A type epoxy resin, organic monobasic unsaturated carboxylic acid, organic saturated binary lipid acid, end carboxyl liquid nitrile rubber at 120～160 ℃, synthetic by the crosslinkable monomers dilution again, concrete steps are:
(1) batching is standby with mass percent prescription batching:
A. bisphenol A type epoxy resin 30%～50%
B. organic monobasic unsaturated carboxylic acid 6%～10%
C. organic saturated dicarboxylic acid: hexanodioic acid or sebacic acid 7%～12%
D. hold carboxyl liquid nitrile rubber 3%～8%
E. catalyzer 0.05%～0.25%
F. stopper 0.01%～0.05%
G. crosslinkable monomers 30%～45%
Wherein: bisphenol A type epoxy resin is E-51 or E-44; Organic monobasic unsaturated carboxylic acid is meant methacrylic acid, vinylformic acid; Acrylonitrile content is 10～26% in the end carboxyl liquid nitrile rubber; Catalyzer is benzyldimethylamine, benzyl trimethyl ammonium chloride or benzyltriethylammoinium chloride; Stopper is Pyrogentisinic Acid, methyl Pyrogentisinic Acid, Tert. Butyl Hydroquinone, tert-butyl catechol or para benzoquinone.Crosslinkable monomers is vinylbenzene and/or methyl methacrylate.
(2) drop into A, B, C, D, E and F in the esterification by ring opening reaction response device, feed under the situation of nitrogen and stir, be warming up to 120～160 ℃ gradually, reaction system becomes all even and is incubated 1～2h again after transparent, up to recording acid number less than 30mgKOH/g;
(3) dilution is cooled to below 110 ℃ and adds G, fully stirs;
(4) filtration is cooled to room temperature, filters and promptly gets light yellow muddy viscous liquid.
The invention has the beneficial effects as follows: carry out on the basis of esterification by ring opening reaction technology at existing organic monobasic unsaturated carboxylic acid and Resins, epoxy, introduce the flexible group of organic saturated binary lipid acid and end carboxyl liquid nitrile rubber, make the toughness of resin strengthen greatly, the tension set of its casting resin is 8～16%, shock strength 20～30KJ/m
2, synthesis technique is simple, and environmental protection does not have the three wastes and produces, and product stability is good.
High toughness epoxy vinyl ester resin with synthesis technique production of the present invention can satisfy the special requirement that some glass reinforced plastic is produced, as is applicable to: the interfacial layer of making terrace, pointing, sealing material and glass reinforced plastic lining; Make aviation, racing car and military helmet, luge, sailing boat and high-performance racing boat etc.
Embodiment
Followingly the present invention is described in more detail by embodiment.
Embodiment 1:
In reactor, drop into bisphenol A-type E-44 Resins, epoxy 340g, methacrylic acid 62g, hexanodioic acid 60g, end carboxyl liquid nitrile rubber (acrylonitrile content is 10%) 30g, benzyldimethylamine 1.2g, Pyrogentisinic Acid 0.20g.Feed under the situation of nitrogen and stir, be warming up to 130 ℃ gradually, reaction system becomes and keeps temperature 1～2h again behind the homogeneous transparent, up to recording acid number less than 30mgKOH/g.Be cooled to the vinylbenzene of adding below 110 ℃ 310g, fully stir, be cooled to room temperature at last, filter and promptly get light yellow muddy viscous liquid.
Embodiment 2:
Bisphenol A type epoxy resin (E-51) 340g, vinylformic acid 62g, sebacic acid 85g, end carboxyl liquid nitrile rubber (acrylonitrile content is 18%) 35g, benzyl trimethyl ammonium chloride 0.95g, methyl Pyrogentisinic Acid 0.10g are dropped in the device shown in the example 1, stir also under the situation of feeding nitrogen and be warming up to 120 ℃ gradually, below operate by operation steps similarly to Example 1.
Embodiment 3:
With bisphenol A type epoxy resin (E-44) 340g, methacrylic acid 60g, hexanodioic acid 65g, end carboxyl liquid nitrile rubber (acrylonitrile content is 21.5%) 40g, benzyltriethylammoinium chloride 1.4g, Tert. Butyl Hydroquinone 0.18g drop in the device shown in the example 1, be warming up to 160 ℃ gradually under the situation of feeding nitrogen, reaction system becomes behind the homogeneous transparent, keeps temperature 1～2h up to recording acid number less than 30mgKOH/g again.Be cooled to the vinylbenzene of adding below 110 ℃ 270g, methyl methacrylate 30g, fully stir, be cooled to room temperature at last, filter and promptly get light yellow muddy viscous liquid.
Embodiment 4:
In the device shown in bisphenol A type epoxy resin (E-51) 340g, vinylformic acid 62g, hexanodioic acid 65g, end carboxyl liquid nitrile rubber (acrylonitrile content is 18%) 30g, benzyldimethylamine 1.0g, tert-butyl catechol 0.10g, the input example 1, stir also under the situation of feeding nitrogen and be warming up to 140 ℃ gradually, below operate by operation steps similarly to Example 3.
Embodiment 5:
With bisphenol A type epoxy resin (E-44) 340g, methacrylic acid 64g, sebacic acid 80g, end carboxyl liquid nitrile rubber (acrylonitrile content is 10%) 55g, benzyltriethylammoinium chloride 0.95g, para benzoquinone 0.15g drop in the device shown in the example 1, stir also under the situation of feeding nitrogen and be warming up to 150 ℃ gradually, reaction system becomes behind the homogeneous transparent, keeps temperature 1～2h up to recording acid number less than 30mgKOH/g again.Be cooled to the vinylbenzene of adding below 110 ℃ 250g, methyl methacrylate 60g, fully stir, be cooled to room temperature at last, filter and promptly get light yellow muddy viscous liquid.
Embodiment 6:
With bisphenol A type epoxy resin (E-51) 340g, vinylformic acid 72g, sebacic acid 75g, end carboxyl liquid nitrile rubber (acrylonitrile content is 26%) 45g, benzyltriethylammoinium chloride 1.4g, Tert. Butyl Hydroquinone 0.10g drop in the device shown in the example 1, stir also under the situation of feeding nitrogen and be warming up to 120 ℃ gradually, below operate by operation steps similarly to Example 5.
Embodiment 7:
With bisphenol A type epoxy resin (E-44) 340g, vinylformic acid 52g, sebacic acid 75g, end carboxyl liquid nitrile rubber (acrylonitrile content is 10%) 50g, benzyl trimethyl ammonium chloride 0.95g, methyl Pyrogentisinic Acid 0.10g drop in the device shown in the example 1, stir also under the situation of feeding nitrogen and be warming up to 160 ℃ gradually, reaction system becomes behind the homogeneous transparent, keeps temperature 1～2h until recording acid number less than 30mgKOH/g again.Be cooled to the vinylbenzene of adding below 110 ℃ 280g, methyl methacrylate 30g, fully stir, be cooled to room temperature at last, filter and promptly get light yellow muddy viscous liquid.
Embodiment 8:
With bisphenol A type epoxy resin (E-51) 340g, methacrylic acid 65g, hexanodioic acid 73g, end carboxyl liquid nitrile rubber (acrylonitrile content is 21.5%) 45g, benzyldimethylamine 1.8g, Tert. Butyl Hydroquinone 0.20g drop in the device shown in the example 1, stir also under the situation of feeding nitrogen and be warming up to 140 ℃ gradually, reaction system becomes behind the homogeneous transparent, keeps temperature 1～2h until recording acid number less than 30mgKOH/g again.Be cooled to the vinylbenzene of adding below 110 ℃ 320g, fully stir, be cooled to room temperature at last, filter and promptly get light yellow muddy viscous liquid.More than among each embodiment the typical quality index of gained resin as follows:
| Index | Unit | Numerical value | Testing method |
| Outward appearance | Light yellow muddy thick liquid | ||
| Acid number | mgKOH/g | 10～15 | GB/T2895-1987 |
| Viscosity (25 ℃) | Pa·s | 0.35～0.45 | GB/T7193.1-1987 |
| Solids content | ％ | 57～65 | GB/T7193.3-1987 |
| Gel time (25 ℃) | min | 25～45 | GB/T7193.6-1987 |
The typical mechanical performance index of this casting resin is as follows:
| Project | Data | Testing method |
| Tensile strength MPa | 45～55 | GB/T2568-1995 |
| Tensile modulus GPa | 2.1～2.6 | GB/T2568-1995 |
| Elongation at break % | 8～16 | GB/T2568-1995 |
| Flexural strength MPa | 70～85 | GB/T2570-1995 |
| Modulus in flexure GPa | 2.3～2.9 | GB/T2570-1995 |
| Compressive strength MPa | 100～120 | GB/T2569-1995 |
| Modulus of compression GPa | 2.2～2.7 | GB/T2569-1995 |
| Shock strength KJ/m 2 | 20～30 | GB/T2571-1995 |
From last table as seen, synthetic high toughness epoxy vinyl ester resin tension set of the present invention reaches 8～16%, and shock strength reaches 20～30KJ/m
2, far above prior art.Synthesis technique of the present invention is simple, and the production process environmental protection does not have the three wastes and produces, and product stability is good.
Claims (7)
1. the epoxy vinyl ester resin synthesis technique of a high tenacity comprises the following steps:
(1) batching is standby with mass percent prescription batching:
A. bisphenol A type epoxy resin 30%～50%
B. organic monobasic unsaturated carboxylic acid 6%～10%
C. organic saturated dicarboxylic acid: hexanodioic acid or sebacic acid 7%～12%
D. hold carboxyl liquid nitrile rubber 3%～8%
E. catalyzer 0.05%～0.25%
F. stopper 0.01%～0.05%
G. crosslinkable monomers 30%～45%
(2) drop into A, B, C, D, E and F in the esterification by ring opening reaction response device, feed under the situation of nitrogen and stir, be warming up to 120～160 ℃ gradually, reaction system becomes all even and is incubated 1～2h again after transparent, up to recording acid number less than 30mgKOH/g;
(3) dilution is cooled to below 110 ℃ and adds G, fully stirs;
(4) filtration is cooled to room temperature, filters and promptly gets light yellow muddy viscous liquid.
2. by the epoxy vinyl ester resin synthesis technique of the described high tenacity of claim 1, it is characterized in that described bisphenol A type epoxy resin is E-51 or E-44.
3. by the epoxy vinyl ester resin synthesis technique of the described high tenacity of claim 1, it is characterized in that described organic monobasic unsaturated carboxylic acid is meant methacrylic acid or vinylformic acid.
4. by the epoxy vinyl ester resin synthesis technique of the described high tenacity of claim 1, it is characterized in that acrylonitrile content is 10～26% in the described end carboxyl liquid nitrile rubber.
5. by the epoxy vinyl ester resin synthesis technique of the described high tenacity of claim 1, it is characterized in that described catalyzer is a kind of in benzyldimethylamine, benzyl trimethyl ammonium chloride or the benzyltriethylammoinium chloride.
6. by the epoxy vinyl ester resin synthesis technique of the described high tenacity of claim 1, it is characterized in that a kind of in Pyrogentisinic Acid, methyl Pyrogentisinic Acid, Tert. Butyl Hydroquinone, tert-butyl catechol or the para benzoquinone of described stopper.
7. by the epoxy vinyl ester resin synthesis technique of the described high tenacity of claim 1, it is characterized in that described crosslinkable monomers is vinylbenzene and/or methyl methacrylate.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005101105228A CN100358931C (en) | 2005-11-18 | 2005-11-18 | Tech. for synthesizing high toughness epoxy vinyl ester resin |
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| CNB2005101105228A CN100358931C (en) | 2005-11-18 | 2005-11-18 | Tech. for synthesizing high toughness epoxy vinyl ester resin |
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| CN100358931C true CN100358931C (en) | 2008-01-02 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101397364B (en) * | 2008-04-28 | 2010-12-15 | 华东理工大学华昌聚合物有限公司 | Method for preparing air drying epoxy vinyl ester resin |
| CN102295730B (en) * | 2011-07-07 | 2012-10-10 | 华东理工大学华昌聚合物有限公司 | Method for synthesizing intramolecular toughening epoxy vinyl esters resin |
| CN104499687B (en) * | 2014-12-29 | 2017-01-18 | 苏州奥莱鑫建材有限公司 | Abrasion-resistant and anticorrosive floor |
| CN105131526B (en) * | 2015-09-15 | 2018-10-02 | 宁波龙旋机械制造有限公司 | A kind of fan coupler is tubular axle combined and its manufacturing method |
| CN105694000B (en) * | 2016-02-03 | 2018-07-17 | 上海昭和高分子有限公司 | A kind of vinyl ester resin and preparation method thereof |
| CN108716162A (en) * | 2018-06-07 | 2018-10-30 | 华东理工大学 | A kind of preparation method of aqueous environment protection wet strength agent |
| CN110523914A (en) * | 2019-09-17 | 2019-12-03 | 含山县荣盛机械铸造有限公司 | A kind of preparation method of high temperature heat-resistant impact casting sand |
| CN111823336B (en) * | 2020-07-28 | 2022-04-26 | 小森新材料科技有限公司 | Aldehyde-free technical veneer production method for veneer solid wood multilayer board assembly |
| CN112300368A (en) * | 2020-10-26 | 2021-02-02 | 鑫双利(惠州)树脂有限公司 | Novolac epoxy vinyl resin for floor and preparation method thereof |
| CN114249879A (en) * | 2022-01-12 | 2022-03-29 | 广东美亨新材料科技有限公司 | Environment-friendly vinyl ester resin |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5198510A (en) * | 1990-04-27 | 1993-03-30 | The B. F. Goodrich Company | Modification of vinyl ester resins with reactive liquid polymers |
| CN1081187A (en) * | 1992-07-06 | 1994-01-26 | 上海新华树脂厂 | Isocyanate-modified vinyl ester resin |
| JPH1087764A (en) * | 1996-09-17 | 1998-04-07 | Hitachi Chem Co Ltd | Vinyl ester resin composition and concrete lining material produced by using the composition |
| JP2005097523A (en) * | 2003-08-28 | 2005-04-14 | Showa Highpolymer Co Ltd | Vinyl ester and its resin, curable resin composition and method for applying the same and structure |
-
2005
- 2005-11-18 CN CNB2005101105228A patent/CN100358931C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5198510A (en) * | 1990-04-27 | 1993-03-30 | The B. F. Goodrich Company | Modification of vinyl ester resins with reactive liquid polymers |
| CN1081187A (en) * | 1992-07-06 | 1994-01-26 | 上海新华树脂厂 | Isocyanate-modified vinyl ester resin |
| JPH1087764A (en) * | 1996-09-17 | 1998-04-07 | Hitachi Chem Co Ltd | Vinyl ester resin composition and concrete lining material produced by using the composition |
| JP2005097523A (en) * | 2003-08-28 | 2005-04-14 | Showa Highpolymer Co Ltd | Vinyl ester and its resin, curable resin composition and method for applying the same and structure |
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