JP4514426B2 - セメント混和剤及びその製造方法 - Google Patents
セメント混和剤及びその製造方法 Download PDFInfo
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- JP4514426B2 JP4514426B2 JP2003344334A JP2003344334A JP4514426B2 JP 4514426 B2 JP4514426 B2 JP 4514426B2 JP 2003344334 A JP2003344334 A JP 2003344334A JP 2003344334 A JP2003344334 A JP 2003344334A JP 4514426 B2 JP4514426 B2 JP 4514426B2
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- monomer
- unsaturated
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- meth
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- VAZSKTXWXKYQJF-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)OOS([O-])=O VAZSKTXWXKYQJF-UHFFFAOYSA-N 0.000 description 3
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- 239000000839 emulsion Substances 0.000 description 1
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- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 125000003187 heptyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 150000007517 lewis acids Chemical class 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920003145 methacrylic acid copolymer Polymers 0.000 description 1
- 125000005397 methacrylic acid ester group Chemical group 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- JRKICGRDRMAZLK-UHFFFAOYSA-L persulfate group Chemical group S(=O)(=O)([O-])OOS(=O)(=O)[O-] JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 1
- 229920001467 poly(styrenesulfonates) Polymers 0.000 description 1
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- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- NHARPDSAXCBDDR-UHFFFAOYSA-N propyl 2-methylprop-2-enoate Chemical compound CCCOC(=O)C(C)=C NHARPDSAXCBDDR-UHFFFAOYSA-N 0.000 description 1
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- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- AOHJOMMDDJHIJH-UHFFFAOYSA-N propylenediamine Chemical compound CC(N)CN AOHJOMMDDJHIJH-UHFFFAOYSA-N 0.000 description 1
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- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
- 235000010265 sodium sulphite Nutrition 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
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- IIACRCGMVDHOTQ-UHFFFAOYSA-N sulfamic acid Chemical compound NS(O)(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-N 0.000 description 1
- 150000008054 sulfonate salts Chemical class 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
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- FAGUFWYHJQFNRV-UHFFFAOYSA-N tetraethylenepentamine Chemical compound NCCNCCNCCNCCN FAGUFWYHJQFNRV-UHFFFAOYSA-N 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 description 1
- LDHQCZJRKDOVOX-UHFFFAOYSA-N trans-crotonic acid Natural products CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Landscapes
- Macromonomer-Based Addition Polymer (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
(1)ポリアルキレンポリアミンと、二塩基酸又は二塩基酸アルキルエステルとの縮合物に、炭素数2〜4のアルキレンオキシド又はアルキレンカーボネートを付加せしめた化合物を、不飽和結合を有するカルボン酸類と反応させて不飽和基を導入したモノマー(I)と、下記一般式(1)で示される不飽和カルボン酸系モノマー(II)と、下記一般式(2)で示される不飽和ポリアルキレングリコール系モノマー(III)とを共重合せしめた重合物よりなることを特徴とするセメント混和剤、
測定機器 :日本分光工業製
検出器 :示差屈折計
溶離液 :50ミリモルNaNO3水溶液/アセトニトリル=80/20(容量%)
カラム温度:40℃
カラム :Shodex OHpak SB802.5HQ+SB804HQ+SB806HQ
標準物質 :ポリエチレングリコール
エチレンジアミン120g(2mol)、アジピン酸243g(1.66mol)を1L四つ口フラスコに仕込み窒素置換を行った後、150℃で11時間脱水反応を行なった。次にこの縮合反応物300gを加圧式オートクレーブに仕込み、窒素置換を行なった後、100℃〜150℃で137gのエチレンオキサイドを導入して付加反応を行なった。次にこの反応物400gを1L四つ口フラスコに仕込み、メタアクリル酸メチル71.3g、ソジウムメチラート28%溶液4.7g、メトキノン0.5gを仕込み、攪拌下に昇温し、反応温度100〜130℃で4時間エステル交換反応を行ない、余剰のメタクリル酸メチルを除去してモノマー(I)を得た。引き続いて、温度計、攪拌機、窒素導入管、還流冷却器を備えたガラス製反応容器にイオン交換水249.5gを仕込み、攪拌下に反応容器内を窒素置換し、窒素雰囲気下で90℃まで加熱した。次に、メトキシポリエチレングリコールモノメタクリル酸エステル(エチレンオキシドの平均付加モル数22:分子量1036)223.5g、メタクリル酸46.5g、イオン交換水180g、水酸化ナトリウム0.4gからなる単量体水溶液、前記モノマー(I)30gを70gのイオン交換水に溶解させた単量体水溶液100g、4.5%過硫酸ナトリウム水溶液100g、4.5%チオグリコール酸アンモニウム水溶液100gの4液を定量ポンプを用いて2時間かけて滴下した。その後90℃で2時間保持した後、30℃まで冷却してから40%水酸化ナトリウム水溶液7.8gで部分中和して重量平均分子量24000の重合物を得た。
ジエチレントリアミン206g(2mol)、アジピン酸243g(1.66mol)を1L四つ口フラスコに仕込み窒素置換を行った後、150℃で14時間脱水反応を行なった。次にこの縮合反応物350gを加圧式オートクレーブに仕込み、窒素置換を行なった後、100℃〜150℃で264gのエチレンオキサイドを導入して付加反応を行なった。次にこの反応物500gを1L四つ口フラスコに仕込み、メタアクリル酸メチル97.6g、ソジウムメチラート28%溶液6.0g、メトキノン0.6gを仕込み、攪拌下に昇温し、反応温度100〜130℃で4時間エステル交換反応を行い、余剰のメタクリル酸メチルを除去してモノマー(I)を得た。引き続いて、温度計、攪拌機、窒素導入管、還流冷却器を備えたガラス製反応容器に水249.5gを仕込み、攪拌下に反応容器内を窒素置換し、窒素雰囲気下で90℃まで加熱した。次に、メトキシポリエチレングリコールモノメタクリル酸エステル(エチレンオキシドの平均付加モル数22:分子量1036)223.5g、メタクリル酸46.5g、イオン交換水180g、水酸化ナトリウム0.4gからなる単量体水溶液、前記モノマー(I)30gを70gの水に溶解させた単量体水溶液100g、4.5%過硫酸ナトリウム水溶液100g、4.5%チオグリコール酸アンモニウム水溶液100gの4液を定量ポンプを用いて2時間かけて滴下した。その後90℃で2時間保持した後、30℃まで冷却してから40%水酸化ナトリウム水溶液7.8gで部分中和して重量平均分子量25000の重合物を得た。
ジエチレントリアミン103g、アジピン酸120gを4つ口フラスコに仕込み、窒素置換を行い、150℃で19時間脱水反応を行なった。引き続き、ハイドロキノン0.3g、メタクリル酸14.6gを仕込み、150℃、10時間脱水反応を行い、冷却後イオン交換水752gに溶解させた。上記水溶液958gを加圧式オートクレーブに仕込み、窒素置換を行った後、295gのエチレンオキサイドを導入し50℃で付加反応を行なった。引き続いて、実施例1で使用した装置に、水635gを仕込み、攪拌下に反応容器内を窒素置換し、窒素雰囲気下で90℃まで加熱した。次に、上記反応物188g、メトキシポリエチレングリコールモノメタクリル酸エステル(エチレンオキシドの平均付加モル数22:分子量1036)290g、メタクリル酸ナトリウム塩135gからなる単量体水溶液、5%チオグリコール酸アンモニウム水溶液200g、5%過硫酸アンモニウム水溶液200gの3液を定量ポンプを用いて2時間かけて滴下した。滴下終了後、更に5%過硫酸アンモニウム水溶液50gを30分かけて滴下し、その後同温度で2時間保持し、重量平均分子量8000の重合物を得た。
モルタルミキサー(品川式万能混練機)により実施例、比較例で調製した重合体と消泡剤(弊社製品トリミンDF−325:0.01%対セメント+シリカフューム)を含む水162gと普通ポルトランドセメント(太平洋、宇部三菱、住友大阪製の等量混合)486gとシリカフュ−ム(巴工業株式会社)54gを入れ、低速回転で120秒混練りする。次いで標準砂(セメント協会製)1350gを30秒間かけて入れ低速回転で60秒混練り後、30秒休止する間に掻き落としを行なう。休止が終わったら高速回転で60秒混練りし、モルタルを調製した。
調製したモルタルをモルタルスランプコーン(上径50mm、下径100mm、高さ150mm)に充填し、垂直に持ち上げたときに広がったモルタルの直径の最長部分と最短部分を測定し、その平均値をフロー値とした。
調整したモルタルのフロ−値が180mmに達するまでの時間(秒)を測定した。評価結果を表1にあわせて示した。
Claims (2)
- ポリアルキレンポリアミン1モルに対し、二塩基酸又は二塩基酸アルキルエステル0.5〜0.98モルを縮合せしめた縮合物の活性水素1当量当たり、炭素数2〜4のアルキレンオキシド又はアルキレンカーボネート1〜20モル付加せしめた後、アルキレンオキシド又はアルキレンカーボネート付加物の水酸基1当量当たり、0.01〜0.5モルの不飽和結合を有するカルボン酸類を反応させて不飽和基を導入したモノマー(I)と、下記一般式(1)で示される不飽和カルボン酸系モノマー(II)、下記一般式(2)で示される不飽和ポリアルキレングリコール系モノマー(III)とを、(I):(II):(III)=3〜45重量%:2〜45重量%:10〜95重量%の割合で共重合させることを特徴とするセメント混和剤の製造方法。
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JP2002201240A (ja) * | 2000-12-27 | 2002-07-19 | Nippon Shokubai Co Ltd | ポリカルボン酸系共重合体の製造方法 |
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