CN101613451A - High-content aqueous polyurethane latex and preparation method - Google Patents
High-content aqueous polyurethane latex and preparation method Download PDFInfo
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- CN101613451A CN101613451A CN200910012952A CN200910012952A CN101613451A CN 101613451 A CN101613451 A CN 101613451A CN 200910012952 A CN200910012952 A CN 200910012952A CN 200910012952 A CN200910012952 A CN 200910012952A CN 101613451 A CN101613451 A CN 101613451A
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- 229920002635 polyurethane Polymers 0.000 title claims abstract description 19
- 239000004814 polyurethane Substances 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000004816 latex Substances 0.000 title claims abstract description 8
- 229920000126 latex Polymers 0.000 title claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000000839 emulsion Substances 0.000 claims abstract description 23
- -1 hydroxyalkyl siloxanes Chemical class 0.000 claims abstract description 22
- 229920000728 polyester Polymers 0.000 claims abstract description 17
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000002253 acid Substances 0.000 claims abstract description 16
- 239000000539 dimer Substances 0.000 claims abstract description 16
- SVTBMSDMJJWYQN-UHFFFAOYSA-N 2-methylpentane-2,4-diol Chemical class CC(O)CC(C)(C)O SVTBMSDMJJWYQN-UHFFFAOYSA-N 0.000 claims abstract description 14
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 13
- HIFVAOIJYDXIJG-UHFFFAOYSA-N benzylbenzene;isocyanic acid Chemical class N=C=O.N=C=O.C=1C=CC=CC=1CC1=CC=CC=C1 HIFVAOIJYDXIJG-UHFFFAOYSA-N 0.000 claims abstract description 13
- RLMGYIOTPQVQJR-UHFFFAOYSA-N cyclohexane-1,3-diol Chemical class OC1CCCC(O)C1 RLMGYIOTPQVQJR-UHFFFAOYSA-N 0.000 claims abstract description 13
- 150000004985 diamines Chemical class 0.000 claims abstract description 13
- 229940051841 polyoxyethylene ether Drugs 0.000 claims abstract description 13
- 229920000056 polyoxyethylene ether Polymers 0.000 claims abstract description 13
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 13
- 239000011734 sodium Substances 0.000 claims abstract description 13
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims abstract description 13
- 239000008367 deionised water Substances 0.000 claims abstract description 12
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 12
- 239000007787 solid Substances 0.000 claims abstract description 11
- 239000004970 Chain extender Substances 0.000 claims abstract description 10
- 238000005516 engineering process Methods 0.000 claims abstract description 4
- 239000002994 raw material Substances 0.000 claims description 12
- NSOXQYCFHDMMGV-UHFFFAOYSA-N Tetrakis(2-hydroxypropyl)ethylenediamine Chemical compound CC(O)CN(CC(C)O)CCN(CC(C)O)CC(C)O NSOXQYCFHDMMGV-UHFFFAOYSA-N 0.000 claims description 8
- 229920000642 polymer Polymers 0.000 claims description 4
- UWJJYHHHVWZFEP-UHFFFAOYSA-N pentane-1,1-diol Chemical class CCCCC(O)O UWJJYHHHVWZFEP-UHFFFAOYSA-N 0.000 claims description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 238000010792 warming Methods 0.000 claims description 2
- 238000005406 washing Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000003825 pressing Methods 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 description 9
- 239000011248 coating agent Substances 0.000 description 8
- 239000004744 fabric Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 239000004753 textile Substances 0.000 description 5
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- OVSKIKFHRZPJSS-UHFFFAOYSA-N 2,4-D Chemical compound OC(=O)COC1=CC=C(Cl)C=C1Cl OVSKIKFHRZPJSS-UHFFFAOYSA-N 0.000 description 2
- 229910018540 Si C Inorganic materials 0.000 description 2
- 239000012296 anti-solvent Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 2
- 238000004945 emulsification Methods 0.000 description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229910018557 Si O Inorganic materials 0.000 description 1
- 229910002808 Si–O–Si Inorganic materials 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Abstract
High-content aqueous polyurethane latex of the present invention and preparation method, adopt (A) hydrogenated diphenyl methane diisocyanate, (B) aliphatie diamine base sulfonate sodium, (C) Linear Double hydroxyalkyl siloxanes, (D) dimer acid polyester dibasic alcohol, (E) 2-methyl-2,4 pentanediols, (F) 1,3 cyclohexanediols, (G) chainextender, (H) fatty alcohol-polyoxyethylene ether TO7, (J) deionized water are made through prepolymerization reaction, chain extending reaction, emulsion reaction technology.Its production cost is low, and solid content is up to 55%, water-fast pressing, fastness, wear-resisting, washing fastness good, aqueous, environmental protective.
Description
Technical field
The present invention relates to a kind of used for textile coating layers aqueous polyurethane emulsion and preparation method, particularly relate to a kind of water pressure resistance good high-content aqueous polyurethane latex and preparation method.
Background technology
Along with the development of society, environmental protection more and more is subject to people's attention, and the aqueous product environmentally safe, human body is not had injury, so aqueous polyurethane replaces solvent borne polyurethane to become inexorable trend.
General aqueous polyurethane emulsion solid content is between 20-35% at present.The aqueous polyurethane emulsion solid content that can be used for fabric coating reaches that 40% product is also rare, and the WIT-769 of Britain Baxenden company, solid content are 40%, but and is not suitable for and improves the textiles water pressure resistance.Chinese patent CN1718606A discloses a kind of " aqueous polyurethane emulsion, its Manufacturing approach and use ", and its solid amount is about 30%, is used for water-borne coatings or water-based printing ink.
Summary of the invention
The purpose of this invention is to provide a kind of used for textile coating layers aqueous polyurethane emulsion and preparation method, particularly provide a kind of water pressure resistance good, fastness, wear-resisting, high-content aqueous polyurethane latex and preparation method that washing fastness is good.
Aqueous polyurethane emulsion of the present invention:
The raw material weight proportioning:
A, hydrogenated diphenyl methane diisocyanate (H
12MDI) 100-120
B, aliphatie diamine base sulfonate sodium (equivalent 220) 20-30
C, Linear Double hydroxyalkyl siloxanes (molecular weight 1000) 50-70
D, dimer acid polyester dibasic alcohol (molecular weight 2000) 40-70
E, 2-methyl-2,4 pentanediol 35-45
F, 1,3 cyclohexanediol 25-35
G, chainextender 6-10
H, fatty alcohol-polyoxyethylene ether TO7 5-10
J, deionized water 220-291
Make through prepolymerization reaction, chain extending reaction, emulsion reaction technology;
The product chemical index is as follows:
Outward appearance: white emulsion
Ionic: the moon
PH value: 8 ± 1
Solid content: 55 ± 1%
Chainextender (G) can be selected quadrol or 1, and 4-butyleneglycol one or the two are mixed use.
The above-mentioned aliphatie diamine base sulfonate sodium of mentioning (equivalent 220) can be selected the VESTAMIN A95 of degussa company.
Linear Double hydroxyalkyl siloxanes (molecular weight 1000) can be selected the Rhodrsil1647 of Rhodia.
Dimer acid polyester dibasic alcohol (molecular weight 2000) can be selected the long-chain dimer acid polyester dibasic alcohol PRIPLAST 3190 of UNIQEMA company.
Fatty alcohol-polyoxyethylene ether TO7 is an isomery C13 fatty alcohol-ether (7EO), is the product Lutensol TO7 of German BASF (BASF) company.
Aqueous polyurethane emulsion preparation method of the present invention:
Raw material weight proportioning: as previously mentioned;
The preparation method:
(1) prepolymerization reaction: (A) hydrogenated diphenyl methane diisocyanate, (C) Linear Double hydroxyalkyl siloxanes, (D) dimer acid polyester dibasic alcohol are added in the reactor, be warming up to 70-90 ℃ of reaction 2-4 hour, add (B) aliphatie diamine base sulfonate sodium, (E) 2-methyl-2 then, 4 pentanediols, the reaction of (F) 1,3 cyclohexanediol 2-5 hour;
(2) chain extending reaction: add (G) chainextender in the above-mentioned performed polymer,, be cooled to 40 ± 5 ℃ 50-80 ℃ of reaction 2-3 hour;
(3) emulsion reaction: add (H) fatty alcohol-polyoxyethylene ether TO7 and (J) deionized water, use high speed dispersor to disperse fast, product.
Aqueous polyurethane emulsion of the present invention is produced simple and convenient, and production cost is low, and solid content is up to 55%, water-fast pressing, fastness, wear-resisting, washing fastness good, aqueous, environmental protective.
The raw material hydrogenated diphenyl methane diisocyanate that the present invention selects has ring texture, ring texture is stable in the building-up process, still can exist after forming superpolymer, this structure can increase the rigidity of product, good springiness, can improve the fluffy sense of coating at water-fast, anti-solvent when wear resisting property is enhanced; The easy hydrolysis of ester bond in the conventional polyester produces chain rupture, the product instability, and the present invention selects for use the dimer acid polyester dibasic alcohol to have 36 carbon, and snappiness is splendid, has the dimeracid special construction simultaneously again, coating emulsion hydrolytic resistance obtains very big reinforcement, and stability of emulsion is improved; Linear Double hydroxyalkyl siloxanes provides soft and smooth segment, and siloxane structure has singularity, and it alternately is made of the polymer of stabilization of bony frame Siliciumatom and Sauerstoffatom.Its main chain-Si-O-Si-of polysiloxane belongs to inorganic structure, and its bond energy is higher than the bond energy of C-C key far away, and the bond energy of Si-C key is also than higher, and simple thermal motion is difficult to make Si-O key and Si-C key to rupture, thereby polysiloxane has good thermostability.The main chain of siloxanes is made up of siloxane bond in addition, and its bond length length, bond angle and bond energy are big, so siloxanes is very submissive, its viscous flow activation energy is very little, and when temperature was reduced to-136 ℃, also there was sub-chain motion in polydimethylsiloxane, and low temperature resistant, winter hardiness is special good.Secondly, do not have unsaturated link(age) on the siloxane main chain, and the Si-O-Si key is very stable to oxygen, ozone and ultraviolet ray etc., thereby has good weathering resistance.Siloxane structure determines it to have excellent hydrophobicity, he is close to the contact angle and the paraffin of water, thereby be widely used as water-proof material, reduce to handle the water-permeable and the water-absorbent of back fabric greatly, and do not destroy its ventilation property, mechanicalness and other performance, observe from molecular structure, hydroxyl links to each other with Siliciumatom on the main chain with the σ key in the Linear Double hydroxyalkyl siloxanes, increased the spatial volume that rotates freely, the hydrogen atom of hydroxyl and water hydrogen atom repel mutually, be that water molecules is difficult to combine with hydrophilic oxygen, thereby hydrophobic effect is provided.To sum up, siloxanes has improved flexibility, thermotolerance, winter hardiness, weathering resistance, hydrophobicity etc.; Adopt 2-methyl-2,4 pentanediol, 1,3 cyclohexanediol to carry out chain extension, owing to contain pendant methyl and ring texture has increased repulsion between products molecule, reduce emulsion viscosity, be able to high-load realization, further increased water-fast, anti-solvent, wear resisting property simultaneously; Select for use anionic hydrophilic group and nonionic emulsifying agent to work in coordination with effectiveness, stability of emulsion is further strengthened, and the coating penetration that the product of invention makes is better, with cloth cover to combine fastness good.Selected for use different types of hydroxyl raw material to improve performances such as product is wear-resisting, water-fast, washable, heat-resisting, cold-resistant during the present invention is synthetic.This product has good process implementing, and is environment friendly and pollution-free.Because the solids content height has not only reduced synthesis procedure, has reduced production cost, and the storing safe ready, transportation cost also reduced simultaneously.
Embodiment
Embodiment 1
The raw material weight proportioning:
(A) hydrogenated diphenyl methane diisocyanate 100, (B) aliphatie diamine base sulfonate sodium (equivalent 220) 20, (C) Linear Double hydroxyalkyl siloxanes (molecular weight 1000) 50, (D) dimer acid polyester dibasic alcohol (molecular weight 2000) 40, (E) 2-methyl-2,4 pentanediols 35, (F) 1,3 cyclohexanediol 25, (G) quadrol 7, (H) fatty alcohol-polyoxyethylene ether TO7 are 5, (J) deionized water: 220
The preparation method:
1, prepolymerization reaction: (A) hydrogenated diphenyl methane diisocyanate, (C) Linear Double hydroxyalkyl siloxanes (molecular weight 1000), (D) dimer acid polyester dibasic alcohol (molecular weight 2000) are added in the reactor, 75-80 ℃ of reaction 3 hours, add (B) aliphatie diamine base sulfonate sodium (equivalent 220), (E) 2-methyl-2 then, 4 pentanediols, (F) 1,3 cyclohexanediols continue reaction 2 hours at 75-80 ℃;
2, chain extending reaction: add (G) quadrol in the above-mentioned performed polymer,, be cooled to 40-42 ℃ 65-70 ℃ of reaction 3 hours;
3, emulsion reaction: add (H) fatty alcohol-polyoxyethylene ether TO7 and (J) deionized water, use high speed dispersor to disperse fast, product, its solid content 55.5%.
This embodiment selects for use quadrol to make chainextender and forms the urea key, and rigidity is strong, and wear resistance is excellent.
Embodiment 2
Raw material weight proportioning: (A) hydrogenated diphenyl methane diisocyanate 110, (B) aliphatie diamine base sulfonate sodium (equivalent 220) 25, (C) Linear Double hydroxyalkyl siloxanes (molecular weight 1000) 50, (D) dimer acid polyester dibasic alcohol (molecular weight 2000) 50, (E) 2-methyl-2,4 pentanediols 40, (F) 1,3 cyclohexanediols 30, (G) quadrol 2 and 1,4-butyleneglycol 5, (H) fatty alcohol-polyoxyethylene ether TO7 are 8, (J) deionized water 235: the preparation method is with embodiment 1, product content 55.3%.
This embodiment product is because in the proportioning raw materials (A) and (E) bigger, feel slightly firmly; Select quadrol and 1, the common chain extension of 4-butyleneglycol acts synergistically, and water pressure resistance, wear resistance are good.
Embodiment 3
Raw material weight proportioning: (A) hydrogenated diphenyl methane diisocyanate 115, (B) aliphatie diamine base sulfonate sodium (equivalent 220) 25, (C) Linear Double hydroxyalkyl siloxanes (molecular weight 2000) 70, (D) dimer acid polyester dibasic alcohol (molecular weight 2000) 50, (E) 2-methyl-2,4 pentanediols 40, (F) 1,3 cyclohexanediols 35, (G) 1,4-butyleneglycol 7, (H) fatty alcohol-polyoxyethylene ether TO7 are 8, (J) deionized water 261: the preparation method is with embodiment 1, product content 55.2%
This embodiment product is because in the material component proportioning (A) and (C) bigger, product water pressure resistance height, and feel is soft, and fastness is good.
Embodiment 4
Raw material weight proportioning: (A) hydrogenated diphenyl methane diisocyanate 115, (B) aliphatie diamine base sulfonate sodium (equivalent 220) 30, (C) Linear Double hydroxyalkyl siloxanes (molecular weight 1000) 60, (D) dimer acid polyester dibasic alcohol (molecular weight 2000) 60, (E) 2-methyl-2,4 pentanediols 35, (F) 1,3 cyclohexanediols 25, (G) 1,4-butyleneglycol 9, (H) fatty alcohol-polyoxyethylene ether TO7 are 10, (J) deionized water 255: the preparation method is with embodiment 1, product content 54.9%
This embodiment product is because (B) and (H) large usage quantity in the material component proportioning, and the product wetting ability is stronger, and emulsion state is good, good stability.
Embodiment 5
Raw material weight proportioning: (A) hydrogenated diphenyl methane diisocyanate 120, (B) aliphatie diamine base sulfonate sodium (equivalent 220) 30, (C) Linear Double hydroxyalkyl siloxanes (molecular weight 1000) 70, (D) dimer acid polyester dibasic alcohol (molecular weight 2000) 70, (E) 2-methyl-2,4 pentanediols 40, (F) 1,3 cyclohexanediols 30, (G) 1,4-butyleneglycol 9, (H) fatty alcohol-polyoxyethylene ether TO7 are 6, (J) deionized water 274: the preparation method is with embodiment 1, product content 55.4%
(C), (D) large percentage in this embodiment material component proportioning, its product pliability is good, and washing fastness is best.
Aqueous polyurethane emulsion fabric coating using method of the present invention: this emulsion is clung to the thickening agent PTF thickening with thickening material-vapour, and viscosity reaches 3000 ± 200 centipoises (25 ℃), uses coating machine coating on fabric then, dries 2 minutes for 150-165 ℃.
The present invention and home and abroad like product contrast and experiment are as follows:
| Coating-forming agent | Solid content (%) | Wear resisting property (inferior) | Water pressure resistance (mmH before the washing 2O) | Wash ten times water pressure resistance (mmH 2O) | The oven dry thickness of filming |
| Embodiment 1 | ??55.5 | ??≥5000 | ??2380 | ??2250 | ??45 |
| Embodiment 2 | ??55.3 | ??≥5000 | ??2532 | ??2450 | ??43 |
| Embodiment 3 | ??55.2 | ??≥5000 | ??2510 | ??2490 | ??42 |
| Embodiment 4 | ??54.9 | ??≥5000 | ??2430 | ??2390 | ??41 |
| Embodiment 5 | ??55.4 | ??≥5000 | ??2360 | ??2330 | ??43 |
| Wenzhou whole world URA301G | ??35±1 | ??2480 | ??1840 | ??1578 | ??31 |
| The WIT-769 of Britain Baxenden company | ??40±1 | ??3260 | ??2230 | ??1920 | ??35 |
1, water pressure resistance detects: GB/T4744-1997 textile fabric water permeability resistance is measured hydrostatic test; ISO-811 water permeability resistance tester.
2, coat thickness detection: GB/1764-79 (89) paint film thickness test; JR-706 coat-thickness tester.
3, washing fastness detects: the test of GB/T8629-2001 textiles home washings and drying program; Cygnet XPB55-518S washing machine.
4, wear resistance detects: coated fabric wear resisting property measuring method; Fabric plain grinding instrument FZ/T01011-91.
From above test result as can be seen, product of the present invention is better than the high 20-30% of like product coating thickness, wear resistance, the water pressure resistance height, and fastness to washing is good, obviously is better than other products.
Annex:
1, the VESTAMIN A95 product description portion of degussa company, one page.
2, the Rhodrsil 1647 product description portions of Rhodia, two pages.
3, the long-chain dimer acid polyester dibasic alcohol PRIPLAST 3190 product description portions of UNIQEMA company, two pages.
4, the product Lutensol TO7 of German BASF (BASF) company product description portion, one page.
Claims (3)
1, high-content aqueous polyurethane latex is characterized in that:
The raw material weight proportioning:
A, hydrogenated diphenyl methane diisocyanate 100-120
B, aliphatie diamine base sulfonate sodium equivalent 220 20-30
C, Linear Double hydroxyalkyl siloxane molecule amount 1000 50-70
D, dimer acid polyester dibasic alcohol molecular weight 2000 40-70
E, 2-methyl-2,4 pentanediol 35-45
F, 1,3 cyclohexanediol 25-35
G, chainextender 6-10
H, fatty alcohol-polyoxyethylene ether T07 5-10
J, deionized water 220-291
Make through prepolymerization reaction, chain extending reaction, emulsion reaction technology;
The product chemical index is as follows:
Outward appearance: white emulsion
Ionic: the moon
PH value: 8 ± 1
Solid content: 55 ± 1%
Chainextender (G) can be selected quadrol or 1, and 4-butyleneglycol one or the two are mixed use.
2, high-content aqueous polyurethane latex preparation method is characterized in that:
The raw material weight proportioning:
A, hydrogenated diphenyl methane diisocyanate 100-120
B, aliphatie diamine base sulfonate sodium equivalent 220 20-30
C, Linear Double hydroxyalkyl siloxane molecule amount 1000 50-70
D, dimer acid polyester dibasic alcohol molecular weight 2000 40-70
E, 2-methyl-2,4 pentanediol 35-45
F, 1,3 cyclohexanediol 25-35
G, chainextender 6-10
H, fatty alcohol-polyoxyethylene ether T07 5-10
J, deionized water 220-291
The preparation method:
(1) prepolymerization reaction: (A) hydrogenated diphenyl methane diisocyanate, (C) Linear Double hydroxyalkyl siloxanes, (D) dimer acid polyester dibasic alcohol are added in the reactor, be warming up to 70-90 ℃ of reaction 2-4 hour, add (B) aliphatie diamine base sulfonate sodium, (E) 2-methyl-2 then, 4 pentanediols, the reaction of (F) 1,3 cyclohexanediol 2-5 hour;
(2) chain extending reaction: add (G) chainextender in the above-mentioned performed polymer,, be cooled to 40 ± 5 ℃ 50-80 ℃ of reaction 2-3 hour;
(3) emulsion reaction: add (H) fatty alcohol-polyoxyethylene ether T07 and (J) deionized water, use high speed dispersor to disperse fast, product.
3, high-content aqueous polyurethane latex preparation method according to claim 2, it is characterized in that: (G) chainextender can be selected quadrol or 1, and 4-butyleneglycol one or the two are mixed use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100129524A CN101613451B (en) | 2009-08-05 | 2009-08-05 | High-content aqueous polyurethane latex and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100129524A CN101613451B (en) | 2009-08-05 | 2009-08-05 | High-content aqueous polyurethane latex and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101613451A true CN101613451A (en) | 2009-12-30 |
| CN101613451B CN101613451B (en) | 2011-04-06 |
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|---|---|---|---|
| CN2009100129524A Expired - Fee Related CN101613451B (en) | 2009-08-05 | 2009-08-05 | High-content aqueous polyurethane latex and preparation method thereof |
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| CN103484008A (en) * | 2013-09-03 | 2014-01-01 | 盐城市昶桦户外用品有限公司 | Organic silicon modified water-based polyurethane paint and preparation method |
| CN104975521A (en) * | 2015-07-06 | 2015-10-14 | 辽宁恒星精细化工有限公司 | Waterborne polyurethane latex emulsion for nylon fabric and preparation method thereof |
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