JP4962675B2 - 水分散性エポキシ樹脂、水性エポキシ樹脂組成物およびその硬化物 - Google Patents
水分散性エポキシ樹脂、水性エポキシ樹脂組成物およびその硬化物 Download PDFInfo
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- JP4962675B2 JP4962675B2 JP2012501485A JP2012501485A JP4962675B2 JP 4962675 B2 JP4962675 B2 JP 4962675B2 JP 2012501485 A JP2012501485 A JP 2012501485A JP 2012501485 A JP2012501485 A JP 2012501485A JP 4962675 B2 JP4962675 B2 JP 4962675B2
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- MQJKPEGWNLWLTK-UHFFFAOYSA-N Dapsone Chemical compound C1=CC(N)=CC=C1S(=O)(=O)C1=CC=C(N)C=C1 MQJKPEGWNLWLTK-UHFFFAOYSA-N 0.000 description 1
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- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical group C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- OKIZCWYLBDKLSU-UHFFFAOYSA-M N,N,N-Trimethylmethanaminium chloride Chemical compound [Cl-].C[N+](C)(C)C OKIZCWYLBDKLSU-UHFFFAOYSA-M 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical group CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 1
- 239000007983 Tris buffer Substances 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000005083 Zinc sulfide Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- QFFVPLLCYGOFPU-UHFFFAOYSA-N barium chromate Chemical compound [Ba+2].[O-][Cr]([O-])(=O)=O QFFVPLLCYGOFPU-UHFFFAOYSA-N 0.000 description 1
- 229940083898 barium chromate Drugs 0.000 description 1
- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 150000001721 carbon Chemical group 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 238000003851 corona treatment Methods 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 150000001896 cresols Chemical class 0.000 description 1
- SSJXIUAHEKJCMH-UHFFFAOYSA-N cyclohexane-1,2-diamine Chemical compound NC1CCCCC1N SSJXIUAHEKJCMH-UHFFFAOYSA-N 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- NINOVVRCHXVOKB-UHFFFAOYSA-N dialuminum;dioxido(dioxo)chromium Chemical compound [Al+3].[Al+3].[O-][Cr]([O-])(=O)=O.[O-][Cr]([O-])(=O)=O.[O-][Cr]([O-])(=O)=O NINOVVRCHXVOKB-UHFFFAOYSA-N 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- SBZXBUIDTXKZTM-UHFFFAOYSA-N diglyme Chemical compound COCCOCCOC SBZXBUIDTXKZTM-UHFFFAOYSA-N 0.000 description 1
- 125000005442 diisocyanate group Chemical group 0.000 description 1
- XXBDWLFCJWSEKW-UHFFFAOYSA-N dimethylbenzylamine Chemical compound CN(C)CC1=CC=CC=C1 XXBDWLFCJWSEKW-UHFFFAOYSA-N 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- ZZTCPWRAHWXWCH-UHFFFAOYSA-N diphenylmethanediamine Chemical compound C=1C=CC=CC=1C(N)(N)C1=CC=CC=C1 ZZTCPWRAHWXWCH-UHFFFAOYSA-N 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 1
- 238000009775 high-speed stirring Methods 0.000 description 1
- 239000008240 homogeneous mixture Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- 239000008268 mayonnaise Substances 0.000 description 1
- 235000010746 mayonnaise Nutrition 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000000655 nuclear magnetic resonance spectrum Methods 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 125000006353 oxyethylene group Chemical group 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 150000003003 phosphines Chemical class 0.000 description 1
- 229910000073 phosphorus hydride Inorganic materials 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920001281 polyalkylene Polymers 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 150000008442 polyphenolic compounds Chemical class 0.000 description 1
- 235000013824 polyphenols Nutrition 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 1
- 229960001755 resorcinol Drugs 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- BJQWBACJIAKDTJ-UHFFFAOYSA-N tetrabutylphosphanium Chemical class CCCC[P+](CCCC)(CCCC)CCCC BJQWBACJIAKDTJ-UHFFFAOYSA-N 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- USFPINLPPFWTJW-UHFFFAOYSA-N tetraphenylphosphonium Chemical class C1=CC=CC=C1[P+](C=1C=CC=CC=1)(C=1C=CC=CC=1)C1=CC=CC=C1 USFPINLPPFWTJW-UHFFFAOYSA-N 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- XKFPGUWSSPXXMF-UHFFFAOYSA-N tributyl(methyl)phosphanium Chemical class CCCC[P+](C)(CCCC)CCCC XKFPGUWSSPXXMF-UHFFFAOYSA-N 0.000 description 1
- IMFACGCPASFAPR-UHFFFAOYSA-N tributylamine Chemical compound CCCCN(CCCC)CCCC IMFACGCPASFAPR-UHFFFAOYSA-N 0.000 description 1
- TUQOTMZNTHZOKS-UHFFFAOYSA-N tributylphosphine Chemical compound CCCCP(CCCC)CCCC TUQOTMZNTHZOKS-UHFFFAOYSA-N 0.000 description 1
- YFNKIDBQEZZDLK-UHFFFAOYSA-N triglyme Chemical compound COCCOCCOCCOC YFNKIDBQEZZDLK-UHFFFAOYSA-N 0.000 description 1
- PADOFXALCIVUFS-UHFFFAOYSA-N tris(2,3-dimethoxyphenyl)phosphane Chemical compound COC1=CC=CC(P(C=2C(=C(OC)C=CC=2)OC)C=2C(=C(OC)C=CC=2)OC)=C1OC PADOFXALCIVUFS-UHFFFAOYSA-N 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 150000003739 xylenols Chemical class 0.000 description 1
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 description 1
- 229910000165 zinc phosphate Inorganic materials 0.000 description 1
- 229910052984 zinc sulfide Inorganic materials 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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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
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/182—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing using pre-adducts of epoxy compounds with curing agents
- C08G59/186—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing using pre-adducts of epoxy compounds with curing agents with acids
-
- 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
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/14—Polycondensates modified by chemical after-treatment
- C08G59/1433—Polycondensates modified by chemical after-treatment with organic low-molecular-weight compounds
- C08G59/1438—Polycondensates modified by chemical after-treatment with organic low-molecular-weight compounds containing oxygen
- C08G59/1455—Monocarboxylic acids, anhydrides, halides, or low-molecular-weight esters thereof
-
- 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
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/20—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the epoxy compounds used
-
- 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
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/20—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the epoxy compounds used
- C08G59/22—Di-epoxy compounds
- C08G59/24—Di-epoxy compounds carbocyclic
- C08G59/245—Di-epoxy compounds carbocyclic aromatic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
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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)
- Emergency Medicine (AREA)
- General Chemical & Material Sciences (AREA)
- Epoxy Resins (AREA)
- Paints Or Removers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
で表わされる水分散性エポキシ樹脂が好ましい。また、前記一般式(I)において、Rが炭素数1〜4のアルキル基であり、R’がメチレン基又は2,2−プロピレン基であり、かつ、mが1である水分散性エポキシ樹脂が特に好ましい。
・装置:東ソー株式会社製 HLC−8220 GPC、カラム:東ソー株式会社製 TSK−GEL G2000HXL+G2000HXL+G3000HXL+G4000HXL
・溶媒:テトラヒドロフラン
・流速:1ml/min
・検出器:RI
・試料濃度:30%(w/v)
・測定溶媒:CDCl3
・積算回数:8000回
<工程1>
温度計、攪拌機、窒素導入管及び冷却管を備えたガラス製4ツ口フラスコに、数平均分子量2000(水酸基価28.0mgKOH/g)のメトキシポリエチレングリコール2000gと無水トリメリット酸192gを仕込み、酸無水物基/水酸基の当量比が1.0にて100℃で5時間反応させて、酸価51mgKOH/gのカルボキシ基含有化合物〔(A)−1〕を得た。
で表わされる化合物であることを確認することができる。
温度計、攪拌機、窒素導入管及び冷却管を備えたガラス製4ツ口フラスコに前記工程1で得た酸価51mgKOH/gのカルボキシ基含有化合物〔(A)−1〕1096gとビスフェノールA型エポキシ樹脂〔(B)〕(DIC株式会社製「エピクロン850S」)376gとトリフェニルホスフィン4.4gとを仕込み、カルボキシ基1当量に対してエポキシ樹脂が1.0モル(エポキシ基2当量)となる割合にて120℃で8時間反応させ、酸価0mgKOH/gで反応を終了させて、式(AE1)
で表わされる水分散性エポキシ樹脂(1)を得た。
前記工程2で得た水分散性エポキシ樹脂(1)(エポキシ当量1474)148gとエポキシ樹脂(DIC株式会社製「エピクロン1055」)1000gとを混合し、撹拌しながら水を10分割で添加して、エポキシ樹脂エマルジョン(1)を得た。このようにして得たエポキシ樹脂エマルジョン(1)の性状は、不揮発分59.5%、粘度(B型粘度計)2780mPa・sであった。
製造例1の工程3において、水分散性エポキシ樹脂(1)(エポキシ当量1474)148gとエポキシ樹脂(「エピクロン1055」)1000gおよびブチルセロソルブ(エチレングリコールモノn−ブチルエーテル)128gとを混合した以外は、製造例1と同様にして、エポキシ樹脂エマルジョン(2)を得た。得られたエポキシ樹脂エマルジョン(2)の性状は、不揮発分61.1%、粘度15000mPa・sであった。
製造例1の工程3において、水分散性エポキシ樹脂(1)(エポキシ当量1474)148gとエポキシ樹脂(「エピクロン1055」)1000gおよびプロピレングリコールモノn−プロピルエーテル128gとを混合した以外は、製造例1と同様にして、エポキシ樹脂エマルジョン(3)を得た。得られたエポキシ樹脂エマルジョン(3)の性状は、不揮発分60.1%、粘度6600mPa・sであった。
製造例1の工程3において、水分散性エポキシ樹脂(1)(エポキシ当量1474)148gとエポキシ樹脂(「エピクロン1055」)1000gおよびメチルエチルケトン203gとを混合したこと、かつ、水を添加した後、減圧蒸留によりメチルエチルケトンを留去したこと以外は、製造例1と同様にして、エポキシ樹脂エマルジョン(4)を得た。得られたエポキシ樹脂エマルジョン(4)の性状は、不揮発分60.1%、粘度300mPa・sであった。
<工程1>
温度計、攪拌機、窒素導入管及び冷却管を備えたガラス製4ツ口フラスコに、数平均分子量2000(水酸基価28.0mgKOH/g)のポリエチレングリコール1000gとヘキサヒドロ無水フタル酸180gを仕込み、酸無水物基/水酸基の当量比が1.02にて100℃で3時間反応させて、酸価49mgKOH/gのカルボキシ基含有化合物〔(A)−2〕を得た。
温度計、攪拌機、窒素導入管及び冷却管を備えたガラス製4ツ口フラスコに、前記工程1で得た酸価49mgKOH/gのカルボキシ基含有化合物〔(A)−2〕1145g、エポキシ樹脂〔(B)−2〕(DIC株式会社製「エピクロン830S」)340g及びトリエタノールアミン3gを仕込み、カルボキシ基1当量に対してエポキシ樹脂が1.0モルとなる割合にて150℃で8時間反応させ、酸価0で反応を終了させて、水分散性エポキシ樹脂(2)を得た。このようにして得た水分散性エポキシ樹脂(2)のエポキシ当量は1485〔g/eq〕であった。
前記工程2で得た水分散性エポキシ樹脂(2)(エポキシ当量1485)150gとエポキシ樹脂(「エピクロン1055」)1000gとを混合し、撹拌しながら水を分割添加し、エポキシ樹脂エマルジョン(5)を得た。得られたエポキシ樹脂エマルジョン(5)の性状は不揮発分61.3%、粘度5000mPa・sであった。
<工程1>(中間体:ビスフェノール型エポキシ樹脂溶液の合成)
温度計、撹拌装置及び窒素ガス導入管を備えた4つ口フラスコに、エポキシ当量188〔g/eq〕のビスフェノールA型エポキシ樹脂(DIC株式会社製「エピクロン850」)300部及びビスフェノールA 87.9部を仕込み、80℃に加熱して均一混合物を得た。前段階で得た均一混合物に、テトラメチルアンモニウムクロライド(50%水溶液)0.1部を添加し、攪拌しながら140℃にて3時間反応させた。その後、ブチルセロソルブ129.3部を添加し、撹拌均一することによって、エポキシ当量480〔g/eq〕、不揮発分75%のエポキシ樹脂溶液(K−1)を得た。
温度計、撹拌装置、窒素ガス導入管を付した4つ口フラスコに、エポキシ当量188〔g/eq〕のビスフェノールA型エポキシ樹脂(「エピクロン850」)188部及びトリレンジイソシアネート(三井武田ケミカル株式会社製「コスモネートT−80」)17.4部を仕込んだ。次に、50℃まで昇温させた後、エチレングリコール1.55部を仕込み、80℃にて2時間反応させた。次に、前記反応混合物に、冷却しながら、ポリ(オキシプロピレン/オキシエチレン)アミン(ハンツマン社製「ジェファーミンM−1000」活性水素当量505g/当量)722部を仕込んだ。その後、100℃にて5時間攪拌した。反応混合物にブチルセロソルブ398部を添加し、攪拌することによって、均一化して不揮発分70%の樹脂(K−2)を得た。
温度計、撹拌装置及び窒素ガス導入管を備えた4つ口フラスコに、前記工程1で得たビスフェノール型エポキシ樹脂溶液(K−1)640部を仕込み90℃に昇温した後、前記工程2で得た水性樹脂中間体(K−2)176.3部を仕込み、100℃にて2時間攪拌した。攪拌終了後、ブチルセロソルブ102.8部を仕込んだ後、70℃にてモノエタノ−ルアミン37.3部を添加し、100℃にて3時間攪拌した。その後、冷却を開始し、イオン交換水928部を4時間かけて滴下した。水滴下時の液温は40〜50℃に管理した。次に、スチレン化フェノール系乳化剤(第一工業株式会社製「ノイゲンEA−207D」)28.3部を添加し、攪拌均一することにより不揮発分34質量%の水性樹脂組成物(K−3)を得た。水性樹脂組成物(K−3)の不揮発分を構成する樹脂成分の重量平均分子量は33,000であった。次に、水性樹脂組成物(K−3)と硬化剤(韓国 国都社製「DOCURE KH−700」)を604/100(質量基準)で、ミキサー(株式会社シンキー製の「ARE−310」)を用いて混合して、硬化剤を作製した。
製造例1〜4および比較製造例1で得たエポキシ樹脂エマルジョン(主剤)に、製造例5で得た硬化剤を、下表1に記載の割合で、ミキサー(株式会社シンキー製の「ARE−310」)を用いて混合した後、鋼板(エンジニアリングテストサービス社製JIS G3141準拠「SPCC−SB」、キシレンにて脱脂後、サンドペーパー#240で水研磨処理)に、バーコーターを用いて塗布した。得られた塗膜は膜厚50μmであった。この塗膜を25℃で1週間養生した後、下記条件で各種試験を行ない、その結果を表1に示した。
各エポキシ樹脂エマルジョンを100ml容量のマヨネーズ瓶に90g量り取り、室温(25℃)下に保管し、所定の経過時間後に目視にて外観を観察した。
○:沈殿、分離なし。△:分離が見られる。×:凝集物発生。
JIS K−5600−5−3(1999)に準拠し、デュポン式にて、撃心1/2インチ、荷重1000gにて行った。
〇:50cmで亀裂等の発生無し。×:50cmで亀裂等の発生が認められる。
JIS K−5600−5−6(1999)に準拠し、1mm間隔で切れ目を入れ、テープを貼り付け後に引き剥がした後の塗膜状態を目視で観察した。
1:カットの交差点における塗膜の小さなはがれ。クロスカット部分で影響を受けるのは明確に5%を上回ることはない。
2:塗膜がカットの縁に沿って、及び/又は交差点においてはがれている。クロスカット部分で影響を受けるのは明確に5%を超えるが15%を上回ることはない。
3:塗膜がカットの縁に沿って、部分的又は全面的に大はがれを生じており、及び/又は目のいろいろな部分が、部分的又は全面的にはがれている。クロスカット部分で影響を受けるのは明確に15%を超えるが35%を上回ることはない。
4:塗膜がカットの縁に沿って、部分的又は全面的に大はがれを生じており、及び/又は目のいろいろな部分が、部分的又は全面的にはがれている。クロスカット部分で影響を受けるのは明確に35%を超えるが65%を上回ることはない。
5:はがれの程度が上記4を超える場合。
JIS K5600−5−4に準じて、試験塗膜に対し約45゜の角度に鉛筆の芯を当て、芯が折れない程度に強く試験塗膜に押しつけながら前方に均一な早さで約10mm動かした。塗膜が破れなかったもっとも硬い鉛筆の硬度記号を鉛筆硬度とした。
JIS K−5600−5−1(1999)に準拠し、円筒形マンドレル(直径2mm)により折り曲げられた場合の塗膜の割れおよび、基材からの剥れの有無を観察した。
〇:割れ、剥れ発生せず。×:割れ、又は剥れ発生。
各試験板を25℃の5%水酸化ナトリウム水溶液に1週間浸漬した後に外観を観察した。
○:良好で問題ない、×:塗膜にツヤビケ、フクレまたはワレのいずれかが認められる
各試験板を25℃の水中に1週間浸漬を行った後に、外観を観察した。
○:良好で問題ない、×:塗膜にツヤビケ、フクレまたはワレのいずれかが認められる
JIS K−5600−7−1(1999)に準拠して行った。試験片にカッターでクロスカットを入れた後、試験器内に置き、300hr試験を行った後、クロスカット部からの塗膜の膨れ幅を記す。単位はmmである。
Claims (8)
- 分子中に少なくとも2つ以上のカルボキシ基を有する化合物(A)と、分子内に2つ以上のエポキシ基を有するエポキシ樹脂(B)とを反応させて得られる水分散性エポキシ樹脂であって、
前記化合物(A)が、数平均分子量400〜10000のポリエチレングリコールモノアルキルエーテル(A−1)と、分子中に3つまたは4つのカルボキシ基を有する多価カルボン酸由来の酸無水物(A−2)を、分子中に少なくとも2つ以上のカルボキシ基が存在するようエステル化反応させて得られるものであることを特徴とする水分散性エポキシ樹脂。 - 前記一般式(I)において、Rが炭素数1〜4のアルキル基であり、R’がメチレン基又は2,2−プロピレン基であり、かつ、mが1である請求項2記載の水分散性エポキシ樹脂。
- 数平均分子量400〜10000のポリエチレングリコールモノアルキルエーテル(A−1)と、分子中に3つまたは4つのカルボキシ基を有する多価カルボン酸由来の酸無水物(A−2)とを、前記ポリエチレングリコールモノアルキルエーテル(A−1)の水酸基に対する前記酸無水物(A−2)の酸無水物基(−COOCO−)の割合が1〜1.2の範囲でエステル化反応させて、分子中に少なくとも2つ以上のカルボキシ基を有する化合物(A)を得る工程、前記化合物(A)と分子内に2個以上のエポキシ基を有するエポキシ樹脂(B)とを反応させる工程、を有することを特徴とする水分散性エポキシ樹脂の製造方法。
- 請求項1に記載の水分散性エポキシ樹脂(α)5〜70質量部と、分子内に2個以上のエポキシ基を有するエポキシ樹脂(β)(但し、前記水分散性エポキシ樹脂(α)を除く)30〜95質量部とを含有する水分散性エポキシ樹脂組成物。
- 請求項5に記載の水分散性エポキシ樹脂組成物と水性溶剤(γ)とを含む水性エポキシ樹脂組成物。
- 前記水分散性エポキシ樹脂組成物が水性溶媒(γ)に分散している請求項6記載の水性エポキシ樹脂組成物。
- 請求項6又は7に記載の水性エポキシ樹脂組成物を硬化して得られる硬化物。
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