CN1712636A - Papermaking machine belt - Google Patents
Papermaking machine belt Download PDFInfo
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- CN1712636A CN1712636A CN 200510080010 CN200510080010A CN1712636A CN 1712636 A CN1712636 A CN 1712636A CN 200510080010 CN200510080010 CN 200510080010 CN 200510080010 A CN200510080010 A CN 200510080010A CN 1712636 A CN1712636 A CN 1712636A
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- Prior art keywords
- curing agent
- papermaking machine
- polyurethane
- machine belt
- substrate
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- 239000003795 chemical substances by application Substances 0.000 claims abstract description 28
- 239000000758 substrate Substances 0.000 claims abstract description 23
- 239000000203 mixture Substances 0.000 claims abstract description 22
- 239000004814 polyurethane Substances 0.000 claims abstract description 21
- 229920002635 polyurethane Polymers 0.000 claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 18
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 claims description 16
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims description 16
- 229920005573 silicon-containing polymer Polymers 0.000 claims description 15
- -1 sulfenyl toluenediamine Chemical compound 0.000 claims description 10
- IBOFVQJTBBUKMU-UHFFFAOYSA-N 4,4'-methylene-bis-(2-chloroaniline) Chemical compound C1=C(Cl)C(N)=CC=C1CC1=CC=C(N)C(Cl)=C1 IBOFVQJTBBUKMU-UHFFFAOYSA-N 0.000 claims description 5
- KXDHJXZQYSOELW-UHFFFAOYSA-N Carbamic acid Chemical class NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 claims description 2
- AKCRQHGQIJBRMN-UHFFFAOYSA-N 2-chloroaniline Chemical compound NC1=CC=CC=C1Cl AKCRQHGQIJBRMN-UHFFFAOYSA-N 0.000 claims 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 abstract description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 abstract 2
- 150000005846 sugar alcohols Polymers 0.000 description 16
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 11
- 229920005862 polyol Polymers 0.000 description 10
- 150000003077 polyols Chemical class 0.000 description 10
- 238000005299 abrasion Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Natural products CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 5
- 229920001296 polysiloxane Polymers 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 230000002045 lasting effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 229920005906 polyester polyol Polymers 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 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 3
- 239000005059 1,4-Cyclohexyldiisocyanate Substances 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical compound CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 2
- 229920001730 Moisture cure polyurethane Polymers 0.000 description 2
- 239000005062 Polybutadiene Substances 0.000 description 2
- 239000004721 Polyphenylene oxide Substances 0.000 description 2
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- 238000003490 calendering Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 125000005442 diisocyanate group Chemical group 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- HNRMPXKDFBEGFZ-UHFFFAOYSA-N ethyl trimethyl methane Natural products CCC(C)(C)C HNRMPXKDFBEGFZ-UHFFFAOYSA-N 0.000 description 2
- 206010016256 fatigue Diseases 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 2
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920001281 polyalkylene Polymers 0.000 description 2
- 229920002857 polybutadiene Polymers 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000570 polyether Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- PBBJBFOOHLPWOV-UHFFFAOYSA-N 1,1'-biphenyl;carbonic acid Chemical compound OC(O)=O.C1=CC=CC=C1C1=CC=CC=C1 PBBJBFOOHLPWOV-UHFFFAOYSA-N 0.000 description 1
- VAYTZRYEBVHVLE-UHFFFAOYSA-N 1,3-dioxol-2-one Chemical compound O=C1OC=CO1 VAYTZRYEBVHVLE-UHFFFAOYSA-N 0.000 description 1
- ALQLPWJFHRMHIU-UHFFFAOYSA-N 1,4-diisocyanatobenzene Chemical compound O=C=NC1=CC=C(N=C=O)C=C1 ALQLPWJFHRMHIU-UHFFFAOYSA-N 0.000 description 1
- ICLCCFKUSALICQ-UHFFFAOYSA-N 1-isocyanato-4-(4-isocyanato-3-methylphenyl)-2-methylbenzene Chemical compound C1=C(N=C=O)C(C)=CC(C=2C=C(C)C(N=C=O)=CC=2)=C1 ICLCCFKUSALICQ-UHFFFAOYSA-N 0.000 description 1
- RTBFRGCFXZNCOE-UHFFFAOYSA-N 1-methylsulfonylpiperidin-4-one Chemical compound CS(=O)(=O)N1CCC(=O)CC1 RTBFRGCFXZNCOE-UHFFFAOYSA-N 0.000 description 1
- UXFQFBNBSPQBJW-UHFFFAOYSA-N 2-amino-2-methylpropane-1,3-diol Chemical compound OCC(N)(C)CO UXFQFBNBSPQBJW-UHFFFAOYSA-N 0.000 description 1
- JRQLZCFSWYQHPI-UHFFFAOYSA-N 4,5-dichloro-2-cyclohexyl-1,2-thiazol-3-one Chemical compound O=C1C(Cl)=C(Cl)SN1C1CCCCC1 JRQLZCFSWYQHPI-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 1
- 229920002633 Kraton (polymer) Polymers 0.000 description 1
- GWGWXYUPRTXVSY-UHFFFAOYSA-N N=C=O.N=C=O.CC1=CC=C(C)C=C1 Chemical compound N=C=O.N=C=O.CC1=CC=C(C)C=C1 GWGWXYUPRTXVSY-UHFFFAOYSA-N 0.000 description 1
- UQBRAHLFLCMLBA-UHFFFAOYSA-N N=C=O.N=C=O.CC1=CC=CC(C)=C1 Chemical compound N=C=O.N=C=O.CC1=CC=CC(C)=C1 UQBRAHLFLCMLBA-UHFFFAOYSA-N 0.000 description 1
- 229920000305 Nylon 6,10 Polymers 0.000 description 1
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- 229920004482 WACKER® Polymers 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 125000003342 alkenyl group Chemical group 0.000 description 1
- 125000001118 alkylidene group Chemical group 0.000 description 1
- JFCQEDHGNNZCLN-UHFFFAOYSA-N anhydrous glutaric acid Natural products OC(=O)CCCC(O)=O JFCQEDHGNNZCLN-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 1
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 150000004292 cyclic ethers Chemical class 0.000 description 1
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 1
- 238000006471 dimerization reaction Methods 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- ROORDVPLFPIABK-UHFFFAOYSA-N diphenyl carbonate Chemical compound C=1C=CC=CC=1OC(=O)OC1=CC=CC=C1 ROORDVPLFPIABK-UHFFFAOYSA-N 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- KPYCPQVKYYJPIY-UHFFFAOYSA-N hexane;isocyanic acid Chemical compound N=C=O.CCCCCC KPYCPQVKYYJPIY-UHFFFAOYSA-N 0.000 description 1
- 125000004356 hydroxy functional group Chemical group O* 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- SYSQUGFVNFXIIT-UHFFFAOYSA-N n-[4-(1,3-benzoxazol-2-yl)phenyl]-4-nitrobenzenesulfonamide Chemical class C1=CC([N+](=O)[O-])=CC=C1S(=O)(=O)NC1=CC=C(C=2OC3=CC=CC=C3N=2)C=C1 SYSQUGFVNFXIIT-UHFFFAOYSA-N 0.000 description 1
- 150000005677 organic carbonates Chemical class 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- DGTNSSLYPYDJGL-UHFFFAOYSA-N phenyl isocyanate Chemical compound O=C=NC1=CC=CC=C1 DGTNSSLYPYDJGL-UHFFFAOYSA-N 0.000 description 1
- 125000000843 phenylene group Chemical group C1(=C(C=CC=C1)*)* 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- RUELTTOHQODFPA-UHFFFAOYSA-N toluene 2,6-diisocyanate Chemical compound CC1=C(N=C=O)C=CC=C1N=C=O RUELTTOHQODFPA-UHFFFAOYSA-N 0.000 description 1
- JSPLKZUTYZBBKA-UHFFFAOYSA-N trioxidane Chemical compound OOO JSPLKZUTYZBBKA-UHFFFAOYSA-N 0.000 description 1
- PAPBSGBWRJIAAV-UHFFFAOYSA-N ε-Caprolactone Chemical compound O=C1CCCCCO1 PAPBSGBWRJIAAV-UHFFFAOYSA-N 0.000 description 1
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- Paper (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
A papermaking machine belt has a polyurethane and a substrate. The polyurethane is obtained by curing a mixture of an urethane prepolymer, a curing agent, and a non-reactive liquid poly(dimethyl siloxane) in which an amount ratio thereof with respect to a sum of the amount of the urethane prepolymer and the curing agent is from 0.5 to 25% by weight.
Description
The cross reference of related application
The present invention is based on and require the Japanese patent application submitted on June 25th, 2004 2004-188477 number, and the priority of the Japanese patent application of submitting on March 23rd, 2005 2005-083478 number, its content is incorporated into that this is for reference.
Technical field
The present invention relates to a kind of papermaking machine belt (hereinafter, can abbreviate " band " as once in a while).Especially, the present invention relates to a kind ofly by special compound, as the band that polyurethane is made, the band that this special compound is made has good resistance to rupture, corrosion resistance, lasting anti-twist property and other good physical properties.
Background technology
In the paper mill, comprise that the band of substrate and polyurethane is applied in the different manufacturing steps.Specifically, the band that comprises substrate and polyurethane is used as shoe press belt or conveyer belt and is used as the flexible calendering band in calendering portion in press section.
This band is mainly formed by the band that fabric or analog are made, so that form the intensity of entire belt, and layer of polyurethane is pressed in the one or both sides of substrate.With used position and purpose, can adopt different polyurethane according to this.Under any circumstance, the band always under the high pressure that forms between the roller on roller high-speed mobile.Therefore, band need have the physical property of higher level.Especially, owing to the raising along with papermaking efficient, the speed of service of paper machine is more and more higher, and the pressure of press section is also more and more higher, and it is more and more severeer that working environment becomes.Therefore, the band that is applied to these paper machines with superior performance needs to have higher performance too, for example, and higher abrasion resistance, lasting anti-twist property, resistance to rupture and incompressible fatigability.
In order to make polyurethane, pass through polyaddition reactions to generate by isocyanate-terminated carbamate prepolymer by two isocyanate-terminated vulcabond with by a plurality of hydroxy-end capped polyalcohols.The liquid carbamate prepolymer of Huo Deing has lower molecular weight like this.By the mixture of heating carbamate prepolymer and curing agent (cahin extension agent), liquid carbamate prepolymer is cured to obtain solid-state condensate polyurethane.
Correspondingly, the performance of polyurethane depends on the mixing of vulcabond, polyalcohol and curing agent.Proposed at present the various bands that are used for paper machine, wherein these compounds have been carried out selecting and mixing (seeing JP-A-11-247086 and JP-A-2004-52204).Yet these approach still can not satisfy aforementioned need.
JP-A-11-247086 and JP-A-2004-52204 are referenced as prior art.
Summary of the invention
The object of the present invention is to provide a kind of have good abrasion resistance, lasting anti-twist property, resistance to rupture, incompressible fatigability, and the papermaking machine belt of other characteristics.
The invention provides a kind of papermaking machine belt, this papermaking machine belt comprises polyurethane and substrate.Wherein, polyurethane is that the mixture by curing amino formic acid esters prepolymer, curing agent and inactive liquid dimethyl silicone polymer obtains, wherein, inactive liquid dimethyl silicone polymer is 0.5% to 25% with respect to the percentage by weight of the total amount of carbamate prepolymer and curing agent.
Owing to the polyurethane that is used for papermaking machine belt is that mixture by carbamate prepolymer, curing agent and inactive liquid dimethyl silicone polymer obtains, thus papermaking machine belt resistance to wear, aspect such as anti-twist, resistance to fracture has fabulous effect lastingly.
Description of drawings
Fig. 1 shows the profile according to the typical structure of papermaking machine belt of the present invention;
Fig. 2 shows the schematic diagram of the process (coating step) according to papermaking machine belt of the present invention;
Fig. 3 shows the schematic diagram of the process (curing schedule) according to papermaking machine belt of the present invention;
Fig. 4 shows the schematic representation of apparatus that is used to estimate resistance to rupture;
Fig. 5 shows the schematic representation of apparatus that is used to estimate abrasion resistance; And
Fig. 6 is the structural representation according to another embodiment of papermaking machine belt of the present invention, wherein is formed with rhone on this papermaking machine belt.
The specific embodiment
Hereinafter with reference to accompanying drawing the embodiment according to papermaking machine belt of the present invention is described.
The polyurethane that contains in the papermaking machine belt of this embodiment is the curing mixture of carbamate prepolymer, curing agent and inactive liquid polydimethylsiloxane.
Carbamate prepolymer can obtain by organic diisocyanate and polyalcohol are reacted by known methods.
Here, the preferred embodiment of available organic diisocyanate comprises phenylene vulcabond (PPDI), three vulcabond (TODI), isophorone diisocyanate (IPDI), 4,4 '-di-2-ethylhexylphosphine oxide (phenyl isocyanate) (MDI), Toluene-2,4-diisocyanate, 4-vulcabond (2,4-TDI), Toluene-2,4-diisocyanate, 6-vulcabond (2,6-TDI), naphthalene-1,5-vulcabond (NDI), diphenyl-4,4 '-vulcabond, dibenzyl-4,4 '-vulcabond, stilbene-4,4 '-vulcabond, benzophenone-4,4 '-vulcabond, 1, the 3-Xylene Diisocyanate, 1, the 4-Xylene Diisocyanate, 1-6 '-hexamethylene diisocyanate, 1, the 3-cyclohexyl diisocyanate, 1,4-cyclohexyl diisocyanate (CHDI), 1,1 '-methylene-two (4-cyclic isocyanate hexane) (is abbreviated as: " H usually
12MDI ") three how much isomers, and composition thereof.
The long-chain polyhydric alcohol of high molecular, for example, molecular weight (MW) is used to form prepolymer usually above 250 polyalcohol.The long-chain polyhydric alcohol of high molecular can provide has flexible and flexible resin.The polyalcohol of high molecular is generally the molar mass average value and is at least 250 polyether polyol, polyester polyol or hydrocarbon polyalcohol and is normally used for preparing prepolymer.The molecular weight of high molecular weight polyols is preferably from about 500 to 6000, most preferably, and from about 650 to 3000.Yet the molecular weight maximum of high molecular weight polyols can be 10000, and minimum can be 250.Also can be combined with the trihydroxylic alcohol of low-molecular-weight ethylene glycol and molecular weight from 60 to 250 in the high molecular weight polyols.
Preferably, the polyalkylene ethoxylated polyhydric alcohol can be used general formula " HO (RO)
nH " expression, wherein " R " represents alkylidene, and " n " represents integer, like this, the mean value of the molecular weight of polyether polyol is at least 250.These polyalkylene ethoxylated polyhydric alcohols are components of known polyurethane products, and it can be by adopting known method with cyclic ethers, and for example alkanol ether prepares with polymerizations such as ethylene glycol, dihydroxy ether.The par of hydroxy functional group is from about 2 to about 8, preferably from about 2 to about 3, particularly preferably, from about 2 to 2.5.
Polyester polyol (is generally adipic acid by binary acid usually, but the component that also can comprise other, for example, glutaric acid, succinic acid, azelaic acid, decanedioic acid and phthalic anhydride) and dihydroxylic alcohols is (for example, ethylene glycol, 1,2-propylene glycol, 1,4-butanediol, 1,6-hexylene glycol, diethylene glycol (DEG) and polytetramethylene ether diol) reaction prepare.In this case, if desired this chain is carried out branch or final crosslinked this chain, then can adopt such as the such polyalcohol of glycerol, trimethyl propane, pentaerythrite and sorbierite.Dibasic acid ester can replace binary acid.Some polyester polyol can be prepared by caprolactone or dimerization unrighted acid.
The hydrocarbon polyalcohol can be by the unsaturated monomer of alkenyl, and for example ethene, isobutene and 1,3-butadiene prepare.Example at the hydrocarbon polyalcohol that this adopted comprises polybutadiene polyol.Example in the polybutadiene polyol that this adopted comprises " Poly-bdR-45HT " (being made by Atochem company), " DIFOL " (being made by Amoco company) and " Kraton L polyalcohol " (being made by Shell chemical company).
Also can adopt polycarbonate polyol.This polycarbonate polyol can be by preparing glycol (for example 1,6-hexylene glycol) and organic carbonate (for example biphenyl carbonate, diphenyl carbonate, vinyl carbonate) reaction.
Can be optional from known organic diamino or normally used polyol masses with curing agent or cahin extension agent that prepolymer uses.Preferable material is a low melting material, this material or solid-state or liquid.Particularly preferred material is that fusing point is lower than 140 ℃ diamino, polyalcohol or its mixture.At present, these diaminos or polyalcohol are used as polyurethane curing agent usually in this area.These curing agent depend on required reactivity usually, are used for the specific purpose desirable characteristics, required condition of work, required working life wait and select.Known catalyst can be used in combination with this curing agent.
The curing agent here can adopt water, aliphatic dihydric alcohol, aromatics diamino etc.Can preferably adopt 1 for aliphatic dihydric alcohol, 4-butanediol, 1, ammediol, 1,6-hexylene glycol etc.Can preferably adopt diformazan sulfenyl toluene diamino (DMTDA), 3,3 '-two chloro-, 4,4 '-two amido phenylmethanes (MBCOA) etc. for the aromatics diamino.DMTDA and MBCOA are preferred.DMTDA has dimethyl and the amino different various isomers that replace the position, and can be used in these mixture of isomers.These curing agent can be " ETHACURE 300 " (manufacturing of U.S. Albemarle company).
With reference to the mixing ratio of aforesaid carbamate prepolymer and curing agent, in the curing agent in reactive hydrogen base and the carbamate prepolymer equivalent proportion of isocyanate group be preferably 0.9 to 1.10.
Inactive liquid dimethyl silicone polymer is preferably the polymer that contains siloxanes (for example silicone oil, silicon rubber and elastomer silicone).The example of these silicones comprises that belong to can be from those silicone fluid of commercially available " the SWS-101 silicone fluid " of Wacker silicones company, and " KF96 " (manufacturing of Shin-Etsu chemical company).
The stickiness of aforesaid inactive liquid dimethyl silicone polymer (adopting the measurement of chain length here) can be arbitrarily, as long as it has the abrasion resistance that can improve finished product and can not weaken its polishing machine up hill and dale.Correspondingly, the stickiness of inactive liquid dimethyl silicone polymer can be 200,000cst or higher, but be preferably 5,000 to 100,000cst.
The percentage by weight of the inactive liquid dimethyl silicone polymer that is adopted is 0.5% to 25% of carbamate prepolymer and a curing agent total amount.
In order to make this papermaking machine belt, the substrate that for example is impregnated with the fabric of aforesaid carbamate prepolymer, curing agent and inactive liquid dimethyl silicone polymer is heated to solidify this mixture.As a result, as shown in Figure 1, have the substrate of being layered in 30 both sides polyurethane 20 (woollen blanket side resin 21 and shoe side resin 22) be with 10 manufactured good.Substrate 30 can obtain by the yarn 31 and 32 that is laminated to each other, and perhaps except that by at longitudinal knitted yarn 31 with the fabric that laterally braiding yarn 32 obtains, the list less by spiral stretch wrap film, braided fabric or width obtains.
For at the stacked polyurethane in the both sides of substrate 30, aforesaid mixture is applied in the substrate 30 of extending between the roller 40,41 by resinous coat nozzle 42, and roller rotates as shown in Figure 2.Coated substrate 30 is dried then so that solidify.Afterwards, although not shown, with substrate 30 upsets.Aforesaid mixture is coated in the substrate 30, and carries out drying afterwards so that solidify.Subsequently, as shown in Figure 3, substrate 30 is heated with the mixture of cured coated in its both sides by thermal source 43.Afterwards, the both sides of band polished (post processing) obtaining required thickness, thereby obtain required papermaking machine belt.
The heating-up temperature of solidification process is usually from 20 ℃ to 150 ℃, preferably, and from 90 ℃ to 140 ℃.Substrate preferably is heated at least 30 minutes, thereby this mixture is solidified up hill and dale.
Preferably, the papermaking machine belt of this embodiment has following structure, that is, rhone 4 is formed on the surface of woollen blanket side resin 21 (peripheral surface of band).Papermaking machine belt with said structure as shown in Figure 6.The shape of rhone is not limited to shape shown in Figure 6, also can adopt the rhone of other shapes, rhone, the bottom land that for example can adopt rhone that the groove sidewall is bent, outwards enlarges is flat and the rhone of to be the rhone, the bottom land that curl be at its edge circle etc., as US patent 6,296,738B and Japanese Utility Model 3,104 are shown in the papermaking machine belt described in 830.
Example:
Below the present invention is described below in greater detail, but the present invention is not limited thereto.
Embodiment 1 to 12 and Comparative Examples 1 to 3:
As commercial available polyurethane prepolymer, can prepare by TDI (toluene di-isocyanate(TDI)) or MDI (methyl diphenylene diisocyanate) (TDI and MDI are by polytetramethylene ether diol).As curing agent, prepare by commercial available DMTDA or MBOCA.Thereby mixing in certain proportion, carbamate prepolymer and curing agent make the equivalent ratio setting as shown in table 1 of isocyanate group in the reactive hydrogen base and carbamate prepolymer in the curing agent.Inactive liquid dimethyl silicone polymer can be prepared by " KF96H-30000 (stickiness: about 30000cst) " (being produced by Shin-Etsu chemical company).
Aforementioned various component is sneaked in the mixture shown in the table 1 to prepare initial mixture with the ratio shown in the table 1.In this process, with before curing agent mixes, add inactive liquid dimethyl silicone polymer at carbamate prepolymer.Afterwards, mix all components to obtain initial mixture.
Subsequently, as shown in Figure 2, substrate 30 is stretched between roller 40,41.The initial mixture 22 of above-mentioned preparation is applied in the substrate 30 and in substrate in the roller rotation and is dried.The substrate 30 of overturning then.Be coated in the substrate mixture 22 of above-mentioned preparation and drying.Subsequently, as shown in Figure 3, adopt thermal source 43 that substrate 30 is heated to 100 ℃ and continue 3 hours, be heated to 130 ℃ then and continue 5 hours, thereby solidify this initial mixture 22.The surface of sand belt after curing, and at its peripheral surface, that is, cutting 1mm is wide on woollen blanket side resin 21,1mm dark, the 2.5mm rectangular channel as rhone at interval, has 5mm thickness and comprises polyurethane and the carry sample of substrate with acquisition.
Carry sample to such acquisition carries out the physical characteristic measurement.The measurement of physical characteristic is following to be carried out.
1. resistance to rupture
Adopt device shown in Figure 4, by the two ends of clamp jaw 52,52 clamping carry samples 51.When carry sample 51 is watched from drawing, because the horizontal direction that is interlocked in of clamp jaw 52,52 moves forward and backward.The speed that is applied to tension force on the carry sample 51 and is 3kg/cm and move back and forth is 40cm/sec.In addition, carry sample is clamped between rotation roller 53 and the squeezing shoe 54.Under these conditions, carry sample 51 is by moving squeezing shoe 54 and with 36kg/cm towards rotation roller 53
2Pressure be pressed.During moving back and forth, water is sprayed onto on the carry sample 51 from squeezing shoe side, to suppress the generation of heat.Measurement during moving back and forth, the required number of times that moves back and forth during the breaking of carry sample 51 with the relative side of rotation roller.The result is as shown in table 1.
2. abrasion resistance
Adopt device as shown in Figure 5.Carry sample 51 is connected to the bottom of rammer board 55.Friction member 57 is arranged on rotation roller 56 rotations of its peripheral side, and the while is against the lower surface (surface that will measure) of carry sample 51.In this process, the pressure that rotation roller 56 forms is that 3kg/cm and rotation roller 56 rotated 10 minutes with the speed of 100m/min.After wearing and tearing, measure the reduction of the thickness of carry sample 51.The result is as shown in table 1.
Table 1
| Initial mixture | The physical characteristic of band | ||||||
| ??A | ??B | Equivalent ratio [the NH of A and B 2/NCO] | The addition of dimethyl silicone polymer (C) [C/ (A+B)] (wt-%) | The required number of times cracking that moves back and forth (* 10,000) when breaking | Abrasion resistance (mm) | General evaluation | |
| Embodiment 1 | ??TDI | ??DMTDA | ??0.98 | ??1 | ??20?to?25 | ??0.40 | Can |
| Embodiment 2 | ??TDI | ??DMTDA | ??0.98 | ??3 | ??＞30 | ??0.35 | Well |
| Embodiment 3 | ??TDI | ??DMTDA | ??0.98 | ??5 | ??＞30 | ??0.1 | Outstanding |
| Embodiment 4 | ??TDI | ??DMTDA | ??0.98 | ??10 | ??20?to?25 | ??0.05＞ | Well |
| Embodiment 5 | ??TDI | ??DMTDA | ??0.98 | ??20 | ??15?to?20 | ??0.25 | Can |
| Comparative Examples 1 | ??TDI | ??DMTDA | ??0.98 | ??0 | ??15?to?20 | ??0.55 | |
| Embodiment 6 | ??TDI | ??DMTDA | ??0.95 | ??5 | ??25?to?30 | ??0.05＞ | Outstanding |
| Embodiment 7 | ??TDI | ??DMTDA | ??1.05 | ??7 | ??＞30 | ??0.15＞ | Well |
| Embodiment 8 | ??TDI | ??MBOCA | ??0.99 | ??3 | ??15?to?20 | ??0.25 | Can |
| Embodiment 9 | ??TDI | ??MBOCA | ??0.99 | ??5 | ??25?to?30 | ??0.1 | Outstanding |
| Comparative Examples 2 | ??TDI | ??MBOCA | ??0.98 | ??0 | ??10?to?15 | ??0.45 | |
| | ??MDI | ??DMTDA | ??0.99 | ??3 | ??25?to?30 | ??0.40 | Can |
| Embodiment 11 | ??MDI | ??DMTDA | ??0.99 | ??5 | ??＞30 | ??0.20 | |
| Embodiment | |||||||
| 12 | ??MDI | ??DMTDA | ??0.99 | ??10 | ??15?to?20 | ??0.05＞ | Well |
| Comparative Examples 3 | ??MDI | ??DMTDA | ??0.98 | ??0 | ??15?to?20 | ??0.65 | |
From the result of table 1 as can be seen, carry sample with polyurethane prepolymer, curing agent and nonactive dimethyl silicone polymer has fabulous resistance to rupture and abrasion resistance, and the effect aspect resistance to wearing is especially remarkable, particularly compares with those bands according to the dimethyl silicone polymer that does not have nonactive liquid state of prior art.
According to this embodiment, papermaking machine belt at resistance to fracture, resistance to wear, lasting aspect such as anti-twist has fabulous characteristic.And has good wear resistance.Can improve the productivity ratio of papermaking operation according to the use of papermaking machine belt of the present invention, improve the quality of products and reduce cost.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc. and all should be included within protection scope of the present invention.
Claims (2)
1. papermaking machine belt comprises:
Polyurethane; And
Substrate,
Wherein, described polyurethane is that the mixture by curing amino formic acid esters prepolymer, curing agent and inactive liquid dimethyl silicone polymer obtains, wherein, described inactive liquid dimethyl silicone polymer is 0.5% to 25% with respect to the percentage by weight of the total amount of described carbamate prepolymer and described curing agent.
2. papermaking machine belt according to claim 1, wherein said curing agent be diformazan sulfenyl toluenediamine (DMTDA) or di-2-ethylhexylphosphine oxide (o-chloraniline) (MBOCA).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004188477 | 2004-06-25 | ||
| JP2004188477 | 2004-06-25 | ||
| JP2005083478 | 2005-03-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1712636A true CN1712636A (en) | 2005-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510080010 Pending CN1712636A (en) | 2004-06-25 | 2005-06-24 | Papermaking machine belt |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101374996B (en) * | 2006-01-31 | 2011-04-13 | 市川株式会社 | Belt for papermaking machine |
| CN101688364B (en) * | 2007-05-18 | 2011-11-16 | 市川株式会社 | Shoe press belt |
| CN111527260A (en) * | 2017-12-27 | 2020-08-11 | 山内株式会社 | Shoe press belt |
-
2005
- 2005-06-24 CN CN 200510080010 patent/CN1712636A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101374996B (en) * | 2006-01-31 | 2011-04-13 | 市川株式会社 | Belt for papermaking machine |
| CN101688364B (en) * | 2007-05-18 | 2011-11-16 | 市川株式会社 | Shoe press belt |
| CN111527260A (en) * | 2017-12-27 | 2020-08-11 | 山内株式会社 | Shoe press belt |
| CN111527260B (en) * | 2017-12-27 | 2022-05-27 | 山内株式会社 | Shoe press belt |
| US11668048B2 (en) | 2017-12-27 | 2023-06-06 | Yamauchi Corporation | Shoe press belt |
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