JP6055264B2 - 止水用薬剤組成物及び止水方法 - Google Patents
止水用薬剤組成物及び止水方法 Download PDFInfo
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- JP6055264B2 JP6055264B2 JP2012227279A JP2012227279A JP6055264B2 JP 6055264 B2 JP6055264 B2 JP 6055264B2 JP 2012227279 A JP2012227279 A JP 2012227279A JP 2012227279 A JP2012227279 A JP 2012227279A JP 6055264 B2 JP6055264 B2 JP 6055264B2
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- JP
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- Prior art keywords
- water
- isocyanate group
- urethane prepolymer
- curing agent
- terminated urethane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000012948 isocyanate Substances 0.000 claims description 69
- 150000002513 isocyanates Chemical group 0.000 claims description 68
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 claims description 52
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- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 1
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- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 1
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- GIWKOZXJDKMGQC-UHFFFAOYSA-L lead(2+);naphthalene-2-carboxylate Chemical compound [Pb+2].C1=CC=CC2=CC(C(=O)[O-])=CC=C21.C1=CC=CC2=CC(C(=O)[O-])=CC=C21 GIWKOZXJDKMGQC-UHFFFAOYSA-L 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- OFUAIAKLWWIPTC-UHFFFAOYSA-L magnesium;naphthalene-2-carboxylate Chemical compound [Mg+2].C1=CC=CC2=CC(C(=O)[O-])=CC=C21.C1=CC=CC2=CC(C(=O)[O-])=CC=C21 OFUAIAKLWWIPTC-UHFFFAOYSA-L 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
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- CRVGTESFCCXCTH-UHFFFAOYSA-N methyl diethanolamine Chemical compound OCCN(C)CCO CRVGTESFCCXCTH-UHFFFAOYSA-N 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
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- 125000002524 organometallic group Chemical group 0.000 description 1
- JCGNDDUYTRNOFT-UHFFFAOYSA-N oxolane-2,4-dione Chemical compound O=C1COC(=O)C1 JCGNDDUYTRNOFT-UHFFFAOYSA-N 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- MSSNHSVIGIHOJA-UHFFFAOYSA-N pentafluoropropane Chemical compound FC(F)CC(F)(F)F MSSNHSVIGIHOJA-UHFFFAOYSA-N 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 235000011007 phosphoric acid Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- XFZRQAZGUOTJCS-UHFFFAOYSA-N phosphoric acid;1,3,5-triazine-2,4,6-triamine Chemical compound OP(O)(O)=O.NC1=NC(N)=NC(N)=N1 XFZRQAZGUOTJCS-UHFFFAOYSA-N 0.000 description 1
- LFGREXWGYUGZLY-UHFFFAOYSA-N phosphoryl Chemical group [P]=O LFGREXWGYUGZLY-UHFFFAOYSA-N 0.000 description 1
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- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920005906 polyester polyol Polymers 0.000 description 1
- 229920000166 polytrimethylene carbonate Polymers 0.000 description 1
- 235000011056 potassium acetate Nutrition 0.000 description 1
- RLEFZEWKMQQZOA-UHFFFAOYSA-M potassium;octanoate Chemical compound [K+].CCCCCCCC([O-])=O RLEFZEWKMQQZOA-UHFFFAOYSA-M 0.000 description 1
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- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical group CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 235000013772 propylene glycol Nutrition 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
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- 238000000926 separation method Methods 0.000 description 1
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- 239000005720 sucrose Substances 0.000 description 1
- 125000001302 tertiary amino group Chemical group 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
- 150000003573 thiols Chemical class 0.000 description 1
- 239000012974 tin catalyst Substances 0.000 description 1
- KSBAEPSJVUENNK-UHFFFAOYSA-L tin(ii) 2-ethylhexanoate Chemical compound [Sn+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O KSBAEPSJVUENNK-UHFFFAOYSA-L 0.000 description 1
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 description 1
- VOZKAJLKRJDJLL-UHFFFAOYSA-N tolylenediamine group Chemical group CC1=C(C=C(C=C1)N)N VOZKAJLKRJDJLL-UHFFFAOYSA-N 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- WYXIGTJNYDDFFH-UHFFFAOYSA-Q triazanium;borate Chemical compound [NH4+].[NH4+].[NH4+].[O-]B([O-])[O-] WYXIGTJNYDDFFH-UHFFFAOYSA-Q 0.000 description 1
- IFXORIIYQORRMJ-UHFFFAOYSA-N tribenzylphosphane Chemical compound C=1C=CC=CC=1CP(CC=1C=CC=CC=1)CC1=CC=CC=C1 IFXORIIYQORRMJ-UHFFFAOYSA-N 0.000 description 1
- DQWPFSLDHJDLRL-UHFFFAOYSA-N triethyl phosphate Chemical compound CCOP(=O)(OCC)OCC DQWPFSLDHJDLRL-UHFFFAOYSA-N 0.000 description 1
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- RXJKFRMDXUJTEX-UHFFFAOYSA-N triethylphosphine Chemical compound CCP(CC)CC RXJKFRMDXUJTEX-UHFFFAOYSA-N 0.000 description 1
- WVLBCYQITXONBZ-UHFFFAOYSA-N trimethyl phosphate Chemical compound COP(=O)(OC)OC WVLBCYQITXONBZ-UHFFFAOYSA-N 0.000 description 1
- 150000004072 triols Chemical class 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
- JZZBTMVTLBHJHL-UHFFFAOYSA-N tris(2,3-dichloropropyl) phosphate Chemical compound ClCC(Cl)COP(=O)(OCC(Cl)CCl)OCC(Cl)CCl JZZBTMVTLBHJHL-UHFFFAOYSA-N 0.000 description 1
- KOWVWXQNQNCRRS-UHFFFAOYSA-N tris(2,4-dimethylphenyl) phosphate Chemical compound CC1=CC(C)=CC=C1OP(=O)(OC=1C(=CC(C)=CC=1)C)OC1=CC=C(C)C=C1C KOWVWXQNQNCRRS-UHFFFAOYSA-N 0.000 description 1
- WTLBZVNBAKMVDP-UHFFFAOYSA-N tris(2-butoxyethyl) phosphate Chemical compound CCCCOCCOP(=O)(OCCOCCCC)OCCOCCCC WTLBZVNBAKMVDP-UHFFFAOYSA-N 0.000 description 1
- GTRSAMFYSUBAGN-UHFFFAOYSA-N tris(2-chloropropyl) phosphate Chemical compound CC(Cl)COP(=O)(OCC(C)Cl)OCC(C)Cl GTRSAMFYSUBAGN-UHFFFAOYSA-N 0.000 description 1
- XHGIFBQQEGRTPB-UHFFFAOYSA-N tris(prop-2-enyl) phosphate Chemical compound C=CCOP(=O)(OCC=C)OCC=C XHGIFBQQEGRTPB-UHFFFAOYSA-N 0.000 description 1
- AVWRKZWQTYIKIY-UHFFFAOYSA-N urea-1-carboxylic acid Chemical compound NC(=O)NC(O)=O AVWRKZWQTYIKIY-UHFFFAOYSA-N 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
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- ZTWTYVWXUKTLCP-UHFFFAOYSA-N vinylphosphonic acid Chemical compound OP(O)(=O)C=C ZTWTYVWXUKTLCP-UHFFFAOYSA-N 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
Images
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Sealing Material Composition (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Polyurethanes Or Polyureas (AREA)
Description
(1)イソシアネート基末端ウレタンプレポリマーの調製
下記表1の原料及び配合量で5種類のイソシアネート基末端ウレタンプレポリマーAを調製した。表1の各種のイソシアネート基末端ウレタンプレポリマーAは、表1のポリメリックMDIとポリオールとを、攪拌機、温度計、窒素シール管及び冷却器の付いた反応器内で80℃で3時間反応させた後、表1のMDI,難燃剤及び希釈剤を添加して得た。
但し、MDI−1中に含有されている2,2’−MDIと2,4’−MDIとの合計含有量は、MDIの全含有量に対して50重量部であった(4,4’−MDIの含有量は50重量部であった)。
MDI−2中に含有されている2,2’−MDIと2,4’−MDIとの合計含有量は、MDIの全含有量に対して28重量部であった(4,4’−MDIの含有量は72重量部であった)。
MDI−3中に含有されている2,2’−MDIと2,4’−MDIとの合計含有量は、MDIの全含有量に対して0重量部であった(4,4’−MDIの含有量は100重量部であった)。
MDI−4中に含有されている2,2’−MDIと2,4’−MDIとの合計含有量は、MDIの全含有量に対して100重量部であった(4,4’−MDIの含有量は0重量部であった)。
但し、ポリメリックMDI−1は、イソシアネート(NCO)含量が31.3%であり、二核体の合計含有量は50質量%(多核体の総合含有量は50質量%)であった。含有されている2,2’−MDIと2,4’−MDIとの合計含有量は、MDIの全含有量に対して10重量部であった(4,4’−MDIの含有量は90重量部であった)。
ポリメリックMDI−2は、イソシアネート(NCO)含量が31.3%であり、二核体の合計含有量は36質量%(多核体の総合含有量は64質量%)であった。含有されている2,2‘−MDIと2,4’−MDIとの合計含有量は、MDIの全含有量に対して17重量部であった(4,4’−MDIの含有量は83重量部であった)。
ポリメリックMDI−3は、イソシアネート(NCO)含量が31.1%であり、二核体の合計含有量は30質量%(多核体の総合含有量は70質量%)であった。含有されている2,2’−MDIと2,4’−MDIとの合計含有量は、MDIの全含有量に対して50重量部であった(4,4’−MDIの含有量は50重量部であった)。
ポリメリックMDI−4は、イソシアネート(NCO)含量が31.1%であり、二核体の合計含有量は42質量%(多核体の総合含有量は58質量%)であった。含有されている2,2’−MDIと2,4’−MDIとの合計含有量は、MDIの全含有量に対して0重量部であった(4,4’−MDIの含有量は100重量部であった)。
但し、ポリオール1は三洋化成工業株式会社製 サンニックスGP−250であり、数平均分子量は250、プロピレングリコールユニットは100%である。
ポリオール2は三洋化成工業株式会社製 サンニックスPP−200であり、数平均分子量は200、プロピレングリコールユニットは100%である。
ポリオール3は三洋化成工業株式会社製 サンニックスFA−702であり、数平均分子量は6,000、プロピレングリコールユニットは100%である。
ポリオール4は三洋化成工業株式会社製 サンニックスPEG−200であり、数平均分子量は200、プロピレングリコールユニットは0%、ポリエチレングリコールユニット100%)である。
下記表2の原料及び配合量で5種類の硬化剤Bを調製した。
発泡倍率=発泡後の発泡体の容積(cm3)/発泡前の混合液の容積(cm3)
また、水の白濁については、混合液を容器内の水(1.3リットル)中に投入し、水中での発泡状況を観察し、容器内の水が透明であるものを○とし、白濁したものを×として評価して表記した。
表3のA−1とB−1との組み合わせの薬剤組成物を用い、図4に示す装置で止水実験を行った。図4に示す装置によれば、イソシアネート基末端ウレタンプレポリマーが貯留されたタンク42と硬化剤が貯留されたタンク44とから、サクションホース46、46を介してイソシアネート基末端ウレタンプレポリマーと硬化剤とを別々に注入ポンプ28に送液する。注入ポンプ48からは、デリベリホース50、50を介してイソシアネート基末端ウレタンプレポリマーと硬化剤とを別々にY字管52に送液する。Y字管32で両者を混合した混合液は、スタティックミキサー54が内挿されている中空ネジ付ボルト(IBOボルト)56で更に混合され、導水管58内に供給される。中空ネジ付ボルト(IBOボルト)56の導水管58上に突出している突出長さL1は400mmであり、導水管58の長さL2は400mmである。導水管58の略中央部に網付吐出口60が設けられており、導水管58は、水が貯留されている水槽62内に挿入されている。貯留水の深さは350mmであり、導水管58の網付吐出口60は、貯留水中に浸漬されているため、導水管58内は水で満たされている。
Claims (6)
- 過剰湧水が存在する対象地盤又は対象構造物内で発泡して不透水部を形成する止水用薬剤組成物であって、
前記止水用薬剤組成物には、二核体を20〜70質量%含有するジフェニルメタンジイソシアネート系多核縮合体とプロピレングリコールユニットを少なくとも5質量%含有する数平均分子量100〜10,000の水酸基含有ポリエーテルとが反応して得られたイソシアネート基末端ウレタンプレポリマーと、それに混合される前記イソシアネート基末端ウレタンプレポリマーの硬化剤とを有し、
前記ジフェニルメタンジイソシアネート系多核縮合体中に、前記二核体としてのジフェニルメタンジイソシアネートの全量に対して、2,2′−ジフェニルメタンジイソシアネートと2,4′−ジフェニルメタンジイソシアネートとが、その合計量で5〜60重量部含有され、
前記硬化剤には、触媒、前記イソシアネート基末端ウレタンプレポリマーに対して5〜10質量%含有されている発泡剤としての水及び活性水素化合物が含有されていることを特徴とする止水用薬剤組成物。 - 前記止水用薬剤組成物中に、界面活性剤及び難燃剤が含有されていることを特徴とする請求項1に記載の止水用薬剤組成物。
- 前記イソシアネート基末端ウレタンプレポリマー及び前記硬化剤の各粘度が、25℃で300mPa・s以下であることを特徴とする請求項1又は請求項2に記載の止水用薬剤組成物。
- 請求項1〜3のいずれかに記載の止水用薬剤組成物を湧水が存在する対象地盤又は対象構造物に注入して発泡体から成る不透水部を形成する止水方法であって、そのイソシアネート基末端ウレタンプレポリマーと、その硬化剤とを、前記対象地盤又は前記対象構造物に注入する直前に混合することを特徴とする止水方法。
- 前記イソシアネート基末端ウレタンプレポリマーと、前記硬化剤との混合比を、質量比(イソシアネート基末端ウレタンプレポリマー/硬化剤)で1/1〜3/1とすることを特徴とする請求項4に記載の止水方法。
- 前記対象地盤又は前記対象構造物に設置された排水設備から、前記イソシアネート基末端ウレタンプレポリマーと前記硬化剤との混合液を前記対象地盤又は前記対象構造物に注入することを特徴とする請求項4又は請求項5に記載の止水方法。
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