JP6433316B2 - 新規ポリカルボン酸系共重合体およびセメント分散剤、並びにセメント組成物 - Google Patents
新規ポリカルボン酸系共重合体およびセメント分散剤、並びにセメント組成物 Download PDFInfo
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- JP6433316B2 JP6433316B2 JP2015014197A JP2015014197A JP6433316B2 JP 6433316 B2 JP6433316 B2 JP 6433316B2 JP 2015014197 A JP2015014197 A JP 2015014197A JP 2015014197 A JP2015014197 A JP 2015014197A JP 6433316 B2 JP6433316 B2 JP 6433316B2
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- 239000000203 mixture Substances 0.000 title claims description 34
- 239000002253 acid Substances 0.000 title description 8
- 239000000178 monomer Substances 0.000 claims description 61
- -1 alkenyl ether Chemical compound 0.000 claims description 52
- 125000004432 carbon atom Chemical group C* 0.000 claims description 40
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 29
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- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 19
- 125000005702 oxyalkylene group Chemical group 0.000 claims description 18
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- 229910052783 alkali metal Inorganic materials 0.000 claims description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium group Chemical group [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 6
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 5
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- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 4
- 150000001340 alkali metals Chemical class 0.000 claims description 3
- 150000001342 alkaline earth metals Chemical class 0.000 claims description 3
- 125000003277 amino group Chemical group 0.000 claims description 3
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- 239000002956 ash Substances 0.000 description 5
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- 238000005227 gel permeation chromatography Methods 0.000 description 4
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 description 4
- 238000004898 kneading Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000011259 mixed solution Substances 0.000 description 4
- 230000000379 polymerizing effect Effects 0.000 description 4
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 3
- DKIDEFUBRARXTE-UHFFFAOYSA-N 3-mercaptopropanoic acid Chemical compound OC(=O)CCS DKIDEFUBRARXTE-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 3
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 description 3
- 229920001732 Lignosulfonate Polymers 0.000 description 3
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 3
- 239000011398 Portland cement Substances 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
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- 229910001870 ammonium persulfate Inorganic materials 0.000 description 3
- 150000003863 ammonium salts Chemical class 0.000 description 3
- 125000003118 aryl group Chemical group 0.000 description 3
- 239000011400 blast furnace cement Substances 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 150000004665 fatty acids Chemical class 0.000 description 3
- 239000010881 fly ash Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 125000003055 glycidyl group Chemical group C(C1CO1)* 0.000 description 3
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- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 2
- BDKLKNJTMLIAFE-UHFFFAOYSA-N 2-(3-fluorophenyl)-1,3-oxazole-4-carbaldehyde Chemical compound FC1=CC=CC(C=2OC=C(C=O)N=2)=C1 BDKLKNJTMLIAFE-UHFFFAOYSA-N 0.000 description 2
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 2
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- KWSLGOVYXMQPPX-UHFFFAOYSA-N 5-[3-(trifluoromethyl)phenyl]-2h-tetrazole Chemical compound FC(F)(F)C1=CC=CC(C2=NNN=N2)=C1 KWSLGOVYXMQPPX-UHFFFAOYSA-N 0.000 description 2
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- HRZFUMHJMZEROT-UHFFFAOYSA-L sodium disulfite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])(=O)=O HRZFUMHJMZEROT-UHFFFAOYSA-L 0.000 description 1
- JVBXVOWTABLYPX-UHFFFAOYSA-L sodium dithionite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])=O JVBXVOWTABLYPX-UHFFFAOYSA-L 0.000 description 1
- 229940001584 sodium metabisulfite Drugs 0.000 description 1
- 235000010262 sodium metabisulphite Nutrition 0.000 description 1
- PFUVRDFDKPNGAV-UHFFFAOYSA-N sodium peroxide Chemical compound [Na+].[Na+].[O-][O-] PFUVRDFDKPNGAV-UHFFFAOYSA-N 0.000 description 1
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- NTVDGBKMGBRCKB-UHFFFAOYSA-M sodium;12-hydroxyoctadecanoate Chemical compound [Na+].CCCCCCC(O)CCCCCCCCCCC([O-])=O NTVDGBKMGBRCKB-UHFFFAOYSA-M 0.000 description 1
- SONHXMAHPHADTF-UHFFFAOYSA-M sodium;2-methylprop-2-enoate Chemical compound [Na+].CC(=C)C([O-])=O SONHXMAHPHADTF-UHFFFAOYSA-M 0.000 description 1
- UCWBKJOCRGQBNW-UHFFFAOYSA-M sodium;hydroxymethanesulfinate;dihydrate Chemical compound O.O.[Na+].OCS([O-])=O UCWBKJOCRGQBNW-UHFFFAOYSA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010421 standard material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- IIACRCGMVDHOTQ-UHFFFAOYSA-N sulfamic acid Chemical compound NS(O)(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-N 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000003760 tallow Substances 0.000 description 1
- ISIJQEHRDSCQIU-UHFFFAOYSA-N tert-butyl 2,7-diazaspiro[4.5]decane-7-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CCCC11CNCC1 ISIJQEHRDSCQIU-UHFFFAOYSA-N 0.000 description 1
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 229940035024 thioglycerol Drugs 0.000 description 1
- 150000003573 thiols Chemical group 0.000 description 1
- NJRXVEJTAYWCQJ-UHFFFAOYSA-N thiomalic acid Chemical compound OC(=O)CC(S)C(O)=O NJRXVEJTAYWCQJ-UHFFFAOYSA-N 0.000 description 1
- DHCDFWKWKRSZHF-UHFFFAOYSA-L thiosulfate(2-) Chemical compound [O-]S([S-])(=O)=O DHCDFWKWKRSZHF-UHFFFAOYSA-L 0.000 description 1
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical class CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 1
- 150000004670 unsaturated fatty acids Chemical class 0.000 description 1
- 235000021122 unsaturated fatty acids Nutrition 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 239000000230 xanthan gum Substances 0.000 description 1
- 229920001285 xanthan gum Polymers 0.000 description 1
- 229940082509 xanthan gum Drugs 0.000 description 1
- 235000010493 xanthan gum Nutrition 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- 229910052845 zircon Inorganic materials 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
- DGVVWUTYPXICAM-UHFFFAOYSA-N β‐Mercaptoethanol Chemical compound OCCS DGVVWUTYPXICAM-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Macromonomer-Based Addition Polymer (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
一般式(1)で表される不飽和ポリアルキレングリコール系単量体(a)由来の構造単位(I)と一般式(2)で表される不飽和カルボン酸系単量体(b)由来の構造単位(II)と一般式(3)で表されるアルカノールアミン基含有単量体(c)由来の構造単位(III)を有する共重合体。
本発明のセメント分散剤は、一般式(1)で表される不飽和ポリアルキレングリコール系単量体(a)由来の構造単位(I)と一般式(2)で表される不飽和カルボン酸系単量体(b)由来の構造単位(II)と一般式(3)で表されるアルカノールアミン基含有単量体(c)由来の構造単位(III)を有する共重合体を含む。
本発明のセメント組成物は、本発明のセメント分散剤を含む。本発明のセメント組成物は、好ましくは、本発明のセメント分散剤とセメントと水を含む。
使用カラム:東ソー社製、TSK guard column SWXL+TSKgel G4000SWXL+G3000SWXL+G2000SWXL
溶離液:水10999gとアセトニトリル6001gの混合溶媒に酢酸ナトリウム三水和物115.6gを溶解し、さらに酢酸でpH6.0に調整した溶液を使用した。
サンプル打ち込み量:100μL
流速:1.0mL/min
カラム温度:40℃
検出器:日本ウォーターズ社製、2414 示差屈折検出器
解析ソフト:日本ウォーターズ社製、Empower Software+GPCオプション
較正曲線作成用標準物質:ポリエチレングリコール[ピークトップ分子量(Mp)272500、219300、107000、50000、24000、12600、7100、4250、1470]
較正曲線:上記ポリエチレングリコールのMp値と溶出時間とを基礎にして3次式で作成した。
サンプル調製:測定対象の重合体の水溶液を上記溶離液で重合体濃度が0.5質量%となるように溶解させたものをサンプルとした。
測定条件
装置:Waters社製、Waters Alliance(2695)
解析ソフト:Waters社製、Empowerプロフェッショナル
使用カラム:資生堂社製、CAPCELL PAK AQ C18 3μm(4.6mm
×100mm)
検出器:示差屈折率計(RI)検出器(Waters社製、Waters 2414)、
溶離液:水18480g、アセトニトリル380gの混合溶媒に酢酸ナトリウム三水和物
51g、さらに酢酸90gを溶解させたpH4.0−4.5に調整した溶液
流量:1.0mL/min
カラム温度:40℃
測定時間:60分
試料液注入量:100μL(試料濃度0.1wt%の溶離液調製溶液)。
得られたRIクロマトグラムにおいて、ポリマー溶出直前・溶出直後のベースラインにおいて平らに安定している部分を直線で結び、ポリマーを検出・解析した。ただし、モノマー、モノマー由来の不純物等がポリマーピークに一部重なって測定された場合、それらとポリマーとの重なり部分の最凹部において垂直分割してポリマー部とモノマー部とを分離し、ポリマー部のみの分子量・分子量分布を測定した。ポリマー部とそれ以外とが完全に重なり分離できない場合はまとめて計算した。
温度計、攪拌機、滴下ロートを備えたガラス製反応容器にジイソプロパノールアミンを55.9g投入し、50℃に昇温した。滴下ロートからメタクリル酸グリシジル56.9gを3時間かけて滴下し、滴下終了後、さらに4時間撹拌を行った。
温度計、攪拌機、滴下ロート、窒素導入管、及び還流冷却器を備えたガラス容器に、イオン交換水145.6部を仕込み、窒素フローを行いながら80℃に昇温した。その後、
M−230G(新中村化学工業株式会社製)117.9部、メタクリル酸31.5部、GMA‐DIPA23.98g、メルカプトプロピオン酸1.25部、水56.9部、30wt%の水酸化ナトリウム水溶液2.83gの混合溶液を4時間かけて滴下し、それと同時に過硫酸アンモニウム1.34部と水18.7部の混合溶液を5時間かけて滴下した。滴下終了後、1時間引き続いて80℃に温度を維持した後、室温に冷却し、重合反応を終了した。その後、水酸化ナトリウムを用いて反応溶液をpH7に中和し、重量平均分子量が20000のセメント混和剤用共重合体の水溶液を得た。
得られた共重合体の組成と分子量を表1に示す。
温度計、攪拌機、滴下ロート、窒素導入管、及び還流冷却器を備えたガラス容器に、イオン交換水145.6部を仕込み、窒素フローを行いながら80℃に昇温した。その後、
M−230G(新中村化学工業株式会社製)117.9部、メタクリル酸31.5部、HEMA19.7g、メルカプトプロピオン酸1.39部、水55.2部、30wt%の水酸化ナトリウム水溶液2.83gの混合溶液を4時間かけて滴下し、それと同時に過硫酸アンモニウム1.49部と水24.4部の混合溶液を5時間かけて滴下した。滴下終了後、1時間引き続いて80℃に温度を維持した後、室温に冷却し、重合反応を終了した。その後、水酸化ナトリウムを用いて反応溶液をpH7に中和し、重量平均分子量が20000のセメント混和剤用共重合体の水溶液を得た。
得られた共重合体の組成と分子量を表1に示す。
JIS−R5201−1997に準拠した機械練り用練混ぜ機、さじ、フローテーブル、フローコーンおよび突き棒を使用した。この際、特記しない限りは、JIS−R5201−1997に準拠してモルタル試験を行なった。
試験に使用した材料およびモルタルの配合は、太平洋セメント社製普通ポルトランドセメント587g、JIS−R5201−1997に準拠したセメント強さ試験用標準砂1350g、セメント混和剤用ポリマーの水溶液と消泡剤とを含むイオン交換水264gである。消泡剤は、気泡がモルタル組成物の強度に及ぼす影響を避けることを目的に添加し、空気量が3.0%以下になるようにした。具体的にはオキシアルキレン系消泡剤を、セメント混和剤用共重合体に対して0.1%になるような量で使用した。なお、モルタルの空気量が3.0%より大きい場合には、空気量が3.0%以下になるように消泡剤の添加量を調節した。
モルタルは、室温(20±2℃)にてホバート型モルタルミキサー(型番N−50、ホバート社製)を用いて、4分30秒間で調製した。具体的には、練り鉢に規定量のセメントを入れ、練混ぜ機に取り付け低速で始動させる。パドルを始動させて15秒後に規定量のセメント混和剤用ポリマーおよび消泡剤を含んだ水を15秒間で入れる。その後、砂を入れ、低速で30秒間練混ぜた後、高速にして、引き続き30秒間練混ぜを続ける。練り鉢を練混ぜ機から取り外し、120秒間練混ぜを休止した後、再度練り鉢を練混ぜ機へ取り付け、高速で60秒間練混ぜた後(1番始めに低速で始動させてから4分30秒後)、さじで左右各10回かき混ぜる。練混ぜたモルタルをフローテーブル上に置いたフローコーンに2層に分けて詰める。各層は、突き棒の先端がその層の約1/2の深さまで入るように、全面にわたって各々15回突き、最後に不足分を補い、表面をならし、1番始めに低速で始動させてから6分後に、フローコーンを垂直に持ち上げて取り去り、15秒間に15回の落下運動を与え、テーブルに広がったモルタルの直径を2方向について測定し、この平均値をフロー値とした。
供試体作成:50mm×100mm
供試体養生(28日):温度20℃、湿度60%、恒温恒湿空気養生を24時間行った後、27日間水中で養生
供試体研磨:供試体面 研磨(供試体研磨仕上げ機使用)
圧縮強度測定:自動圧縮強度測定器(前川製作所)
Claims (7)
- 一般式(1)で表される不飽和ポリアルキレングリコールアルケニルエーテル系単量体(a)由来の構造単位(I)と一般式(2)で表される不飽和カルボン酸系単量体(b)由来の構造単位(II)と一般式(3)で表されるアルカノールアミン基含有単量体(c)由来の構造単位(III)を有する共重合体。
(一般式(3)中、R8、R9は、同一または異なって、水素原子またはメチル基であり、Yは−(CH2)m−または−COO−CH 2 −CHOH−であり、mは1〜10の整数である。) - 前記一般式(1)中、xが0である、請求項1に記載の共重合体。
- 前記一般式(2)中、R5、R6が、いずれも水素原子である、請求項1または2に記載の共重合体。
- 前記一般式(1)中、yが0である、請求項1に記載の共重合体。
- 前記一般式(2)中、R5、R6およびR7が、いずれも水素原子である、請求項1または4に記載の共重合体。
- 請求項1から5までのいずれかに記載の共重合体を含む、セメント分散剤。
- 請求項6に記載のセメント分散剤を含む、セメント組成物。
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