CN1072685C - Method for prepn. of latex for coating paper - Google Patents
Method for prepn. of latex for coating paper Download PDFInfo
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- CN1072685C CN1072685C CN97113381A CN97113381A CN1072685C CN 1072685 C CN1072685 C CN 1072685C CN 97113381 A CN97113381 A CN 97113381A CN 97113381 A CN97113381 A CN 97113381A CN 1072685 C CN1072685 C CN 1072685C
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- polymerization
- conjugated diene
- latex
- monomer
- aromatic ethenyl
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- 239000004816 latex Substances 0.000 title claims abstract description 36
- 229920000126 latex Polymers 0.000 title claims abstract description 36
- 239000011248 coating agent Substances 0.000 title claims abstract description 25
- 238000000576 coating method Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 44
- 239000000178 monomer Substances 0.000 claims abstract description 41
- 150000001993 dienes Chemical class 0.000 claims abstract description 22
- 239000000203 mixture Substances 0.000 claims abstract description 16
- 229920002554 vinyl polymer Polymers 0.000 claims abstract description 15
- 150000001408 amides Chemical class 0.000 claims abstract description 14
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims abstract description 14
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims abstract description 13
- -1 aromatic ethenyl compound Chemical class 0.000 claims description 23
- 125000001931 aliphatic group Chemical group 0.000 claims description 14
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical group C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims description 12
- 238000002360 preparation method Methods 0.000 claims description 11
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 8
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical compound OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 6
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 claims description 6
- LVHBHZANLOWSRM-UHFFFAOYSA-N itaconic acid Chemical compound OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 claims description 6
- CNCOEDDPFOAUMB-UHFFFAOYSA-N N-Methylolacrylamide Chemical compound OCNC(=O)C=C CNCOEDDPFOAUMB-UHFFFAOYSA-N 0.000 claims description 5
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 3
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 claims description 3
- HJWLCRVIBGQPNF-UHFFFAOYSA-N prop-2-enylbenzene Chemical compound C=CCC1=CC=CC=C1 HJWLCRVIBGQPNF-UHFFFAOYSA-N 0.000 claims description 3
- 239000012986 chain transfer agent Substances 0.000 claims description 2
- 239000003995 emulsifying agent Substances 0.000 claims description 2
- 239000007858 starting material Substances 0.000 claims description 2
- WYFCZWSWFGJODV-MIANJLSGSA-N 4-[[(1s)-2-[(e)-3-[3-chloro-2-fluoro-6-(tetrazol-1-yl)phenyl]prop-2-enoyl]-5-(4-methyl-2-oxopiperazin-1-yl)-3,4-dihydro-1h-isoquinoline-1-carbonyl]amino]benzoic acid Chemical compound O=C1CN(C)CCN1C1=CC=CC2=C1CCN(C(=O)\C=C\C=1C(=CC=C(Cl)C=1F)N1N=NN=C1)[C@@H]2C(=O)NC1=CC=C(C(O)=O)C=C1 WYFCZWSWFGJODV-MIANJLSGSA-N 0.000 claims 2
- 125000003118 aryl group Chemical group 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 14
- 229920001577 copolymer Polymers 0.000 abstract description 3
- 239000000839 emulsion Substances 0.000 abstract description 2
- 238000005187 foaming Methods 0.000 abstract 1
- 239000003973 paint Substances 0.000 abstract 1
- 230000000379 polymerizing effect Effects 0.000 abstract 1
- 239000000123 paper Substances 0.000 description 12
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- 239000008199 coating composition Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- WNAHIZMDSQCWRP-UHFFFAOYSA-N dodecane-1-thiol Chemical compound CCCCCCCCCCCCS WNAHIZMDSQCWRP-UHFFFAOYSA-N 0.000 description 5
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 229940077388 benzenesulfonate Drugs 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 239000004160 Ammonium persulphate Substances 0.000 description 2
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 2
- 235000019395 ammonium persulphate Nutrition 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000003750 conditioning effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 2
- 235000017557 sodium bicarbonate Nutrition 0.000 description 2
- 229920006029 tetra-polymer Polymers 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 241000238367 Mya arenaria Species 0.000 description 1
- 239000004159 Potassium persulphate Substances 0.000 description 1
- HLFQTFYHLLARHJ-UHFFFAOYSA-N buta-1,3-diene;prop-2-enamide;prop-2-enoic acid;styrene Chemical compound C=CC=C.NC(=O)C=C.OC(=O)C=C.C=CC1=CC=CC=C1 HLFQTFYHLLARHJ-UHFFFAOYSA-N 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010556 emulsion polymerization method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 235000012204 lemonade/lime carbonate Nutrition 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- OCKPCBLVNKHBMX-UHFFFAOYSA-N n-butyl-benzene Natural products CCCCC1=CC=CC=C1 OCKPCBLVNKHBMX-UHFFFAOYSA-N 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 1
- 235000019394 potassium persulphate Nutrition 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Paper (AREA)
Abstract
The present invention relates to a method for polymerizing the emulsion of a carboxyl butadienestyrene copolymer used for coating paper. Monomers are respectively composed of vinyl unsaturated carboxylic acid, a fatty group conjugated diene, an aromatic vinyl composition and unsaturated acid amide. The present invention adopts a two section polymerization method, and leads the obtained latex to have good performances by controlling the addition amount of each section of monomer. Paint has stable mechanical performances, and fluidity, binding strength and water resistance meet the requirement of a high coating speed. In addition, the binding strength, the glossiness and the foaming resistance performance reach the optimum balance.
Description
The present invention relates to a kind of high molecule emulsion polymerization method, more particularly, relate to the emulsion polymerisation process of a kind of paper coating with the carboxyl butylbenzene copolymer.
On paper, cardboard, be coated with the pigment dispersion (coating) that contains latex and can improve optical properties such as gloss, whiteness, and can improve surface smoothness, ink absorption, improved print gloss.Along with the continuous progress of paper-making technique and the high speed of surface covered, coating performance to coating requires also more and more higher, this mainly comprises having favorable mechanical stability, good flowability and equal voltinism, good cohesive strength and water tolerance, surface of good spreadability etc., in the prior art, the paper latex for coating many improvement have been done, as latex being made the distinct nucleocapsid structure of second-order transition temperature, the stone soft shell, soft nuclear duricrust, to improve sheet gloss etc., U.S.Patent3487032 discloses a kind of tetrapolymer latex, adopt the increment polymerization process, wherein comprise 20～70wt% aromatic vinyl monomer, 30～80wt% aliphatics conjugated diene monomer, 0.5～10wt% vinyl unsaturated carboxylic acid and 0.1～5wt% unsaturated amides.This invention is with aromatic vinyl monomer and aliphatics conjugated diene monomer, vinyl unsaturated carboxylic acid and vinyl unsaturated amides carry out pre-mixing respectively, by increment method mix monomer is joined in the polymerization reactor, in whole polymerization process, monomer ratio is that the ratio of aliphatics conjugated diene and aromatic vinyl monomer is a constant, the ratio of these monomers in the polymkeric substance that forms also is relatively-stationary, therefore still can not solve along with the printing technology high speed, cross the deficiency that decarboxylate butylbenzene copolymer latex exists anti-whipability, or when having satisfied anti-whipability, cohesive strength, the water tolerance this defective that can descend.Therefore latex is under paper machine surface covered condition with higher, and the mechanical stability of coating, flowability, surface strength of paper seem relatively poor, is difficult to form fine and smooth, fine and close coating layer.
The preparation method who the purpose of this invention is to provide a kind of paper latex for coating, make the latex excellent performance that obtains, the mechanical stability of coating, flowability, cohesive strength and water tolerance satisfy the requirement of high surface covered, and cohesive strength and glossiness, anti-whipability reach optimum balance.
The present invention seeks to realize by following method.
Adopt two sections polymerization techniques, first section polymerization single polymerization monomer is by C
3～C
5Vinyl unsaturated carboxylic acid, C
3～C
4Unsaturated amides, C
4～C
5Aliphatics conjugated diene, C
8～C
9Aromatic ethenyl compound form, its consumption is 25～50wt% of one, two section total monomer amount.In one-step polymerization, in the monomer that adds: the total amount of aliphatics conjugated diene (1) and aromatic ethenyl compound (2) is 100wt%, and the one-step polymerization set of monomers becomes accordingly:
(1) the aliphatics conjugated diene has: divinyl, isoprene, its consumption are 35～45wt%, and be relatively poor with quantity not sufficient 35% latex cohesive strength, greater than then water tolerance reduction of 45wt%.
(2) aromatic ethenyl compound has: vinylbenzene, vinyl toluene and their mixture, its consumption are 55～65wt%, not enough 55wt%, its cohesive strength, poor water resistance, also poor greater than the 65wt% cohesive strength.
(3) the vinyl unsaturated carboxylic acid has: methacrylic acid, vinylformic acid, methylene-succinic acid and their mixture.Its consumption is that 5～10wt%[is 100wt% in monomer (1), (2) total amount, and is as follows], not enough 5wt%, latex stability and cohesive strength are relatively poor, and be bigger greater than 10% viscosity of latex, and the coating flowability is bad.
(4) unsaturated amides has: acrylamide, Methacrylamide, n-methylolacrylamide and their mixture, its consumption is 0.5～5.0wt%, and not enough 0.5wt% latex stability is relatively poor, the water tolerance deficiency, too high greater than the 5.0wt% viscosity of latex, the White Board water tolerance is not good enough.
Second section polymerization single polymerization monomer is by C
4～C
5Aliphatics conjugated diene, C
8～C
9Aromatic ethenyl compound form or add again C
3～C
5Vinyl unsaturated carboxylic acid, C
3～C
4Unsaturated amides in one or both compositions.Its consumption is 50～75wt% of one, two section total monomer amount, and in two sections polymerizations, in the monomer that adds: the total amount of aliphatics conjugated diene (1) and aromatic ethenyl compound (2) is 100wt%, and corresponding two sections polymerization single polymerization monomers consist of:
(1) aliphatics conjugated diene: divinyl, isoprene are arranged, and its consumption is 30～45wt%.
(2) aromatic ethenyl compound has: vinylbenzene, vinyl toluene and their mixture, its consumption are 55～70wt%.
(3) the vinyl unsaturated carboxylic acid has: methacrylic acid, vinylformic acid, methylene-succinic acid and their mixture, its consumption is that 0～3.0wt%[is 100wt% in monomer (1), (2) total amount, and is as follows].
(4) unsaturated amides has: acrylamide, Methacrylamide, n-methylolacrylamide, and their mixture, its consumption are 0～2.0wt%.
One section monomer, two sections monomers can adopt once, add polymerization in batches or continuously, can adopt general polymerization starter, emulsifying agent, chain-transfer agent during polymerization, and polymerization temperature is 40～80 ℃, polymerization time 6～12h.
Characteristics of the present invention are that the latex that the preparation method of application paper latex for coating of the present invention obtains is tetrapolymer latex, and monomer is respectively aromatic ethenyl compound, aliphatics conjugated diene, vinyl unsaturated carboxylic acid and unsaturated amides.On the one hand, though adopt two sections polymerizations, but still can not constitute nucleocapsid structure latex, on the other hand owing to adopted two sections polymeric methods, one section monomer is formed with two sections compositions relatively independent, and this can mutually adjust contradiction and reaches optimum balance thereby make the cohesiveness of the latex that the method for application invention obtains and optical property.The preparation method of paper latex for coating of the present invention in addition, control to one section, two sections each monomer compositing range is also quite necessary, thus obtained latex excellent performance, can not only satisfy the optical property of improving paper, improve printing performance and can satisfy the high coating performance that the high speed owing to the paper surface covered brings.
Use the made coating of latex that the preparation method of paper latex for coating of the present invention makes, its mechanical stability, flowability, cohesive strength and water tolerance excellence, and also cohesive strength and glossiness, anti-whipability have obtained optimum balance.
Embodiment 1
(is 100wt% in one, two section total monomer add-on)
In the 10L polymerization reactor, add distilled water 90wt%, 12 carbon sodium alkyl benzene sulfonate 0.2wt%, vinylbenzene 18wt%, divinyl 13wt%, vinylformic acid 2wt%, acrylamide 1.0wt%, n-methylolacrylamide 0.5wt%, and DDM dodecyl mercaptan 0.15wt%, sodium bicarbonate 1.2wt% adds ammonium persulphate 0.8wt% in the time of 80 ℃, polyase 13 hour, add vinylbenzene 39wt% again, divinyl 25wt%, vinylformic acid 1wt%, acrylamide 0.5wt%, DDM dodecyl mercaptan 0.25wt%, 12 carbon sodium alkyl benzene sulfonate 0.2wt%, the mixture of Potassium Persulphate 0.2wt% and water 10wt% finishes until polymerization.After deviating from residual monomer, regulate pH value to 7.0, obtain latex at last with potassium hydroxide, the preparation coating composition, coating composition is pressed following formulation: (wt%)
Proportioning raw materials
China clay 70
Lime carbonate 30
Sumstar 190 13
Latex 17
Dispersion agent 0.3
Coating concentration is 60 ± 2wt%, and the pH value is 8.5.Coating and White Board performance see Table 2.
Embodiment 2,3,4,5,6,7,8
Use the polymerization process identical with embodiment 1, change the add-on of monomer and conditioning agent, concrete component is formed and is seen Table 1, obtain latex after, employing and embodiment 1 identical method is made coating composition again, coating and White Board performance see Table 2.
Comparative example 1,2,3,4,5,6
Use the polymerization process identical with embodiment 1, change the add-on of monomer and conditioning agent, concrete component is formed and is seen Table 1, obtain latex after, employing and embodiment 1 identical method is made coating composition again, coating and White Board performance see Table 2.
Comparative example 7
Adopt the one-step polymerization method, promptly (is 100wt% in one, two section total monomer add-on) adds distilled water 100wt%, 12 carbon sodium alkyl benzene sulfonate 0.2wt% in the 10L polymerization reactor, vinylbenzene 57wt%, divinyl 38wt%, vinylformic acid 3.5wt%, acrylamide 1.5wt%, and DDM dodecyl mercaptan 0.35wt%, sodium bicarbonate 1.2wt% adds ammonium persulphate 0.8wt% in the time of 80 ℃, finish until polymerization.After deviating from residual monomer, regulate pH value to 7.0 with potassium hydroxide.After obtaining latex, adopt the method identical with embodiment 1 to make coating composition again, coating and White Board performance see Table 2.
The performance measurement method all adopts GB:
Whiteness: GB7974, glossiness: GB8941.3, smoothness: GB456, tear strength: GB10341, print gloss: GB8941.3, ink absorption: GB12911, water absorbent surface: GB1540.
Table 1 embodiment and comparative example monomer are formed
| Latex is formed (wt%) | Embodiment | Comparative example | ||||||||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | ||
| One section | Styrene α-vinyltoluene butadiene-isoprene acrylic acid methacrylic acid itaconic acid acrylamide Methacrylamide NMA DDM dodecyl mercaptan | 18 - 13 - 2 - - 1 - 0.5 0.15 | 22 - 18 - - - 3 2 - - 0.15 | 16 - - 12 - 1 1 0.5 0.5 - 0.2 | 15 - 12 - 1.5 1 - 1 - - 0.15 | 13 5 5 - 1.5 - - - - 1 0.15 | 10 8 13 - 2 - 1.0 0.5 - - 0.2 | - 18 13 - 3 - - - 0.5 0.2 | 18 - 13 - 3 - - 0.5 - 0.2 | 18 - 13 - 2.5 - - - - - 0.15 | 17 - 12 - 2 - - 2 - 0.5 0.2 | 17 - 12 - 1 1 - 1 0.5 - 0.115 | 17 - 12 - 4.5 - - 1.5 - - 0.15 | 17 - 13 - 2 - - 1 - - 0.15 | 17 - 13 - 2.5 - - 1.5 - - 0.15 | 57 - 38 - 3.5 - - 1.5 - - 0.35 |
| Two sections | Styrene butadiene acrylic acid acrylamide n-methylolacrylamide DDM dodecyl mercaptan | 39 25 1 0.5 - 0.25 | 35 20 - - - 0.15 | 42.5 26 - 0.5 - 0.2 | 42.5 26 0.5 0.5 - 0.15 | 49 24 1.0 - 0.5 0.15 | 44 21 - 0.5 - 0.2 | 44 21 - - 0.5 0.15 | 45 20 - 0.5 - 0.15 | 40.3 25 1 0.2 - 0.2 | 40 25.5 1 - - 0.15 | 40 25 1 1.5 - 0.2 | 40 25 - - - 0.2 | 46.5 19 1 0.5 - 0.2 | 35 29.5 1 0.5 - 0.2 | - - - - - - |
Table 2. White Board rerum natura
| Project | Embodiment | Comparative example | ||||||||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | ||
| Coating solid content (%) | 59.1 | 58.6 | 58.6 | 58.5 | 58.5 | 58.7 | 58.3 | 58.1 | 58.9 | 59.0 | 58.6 | 58.6 | 58.2 | 58.4 | 58.6 | |
| Dope viscosity (mPas) | 1820 | 2020 | 2140 | 1920 | 1870 | 2100 | 2180 | 2140 | 1630 | 2550 | 2780 | 2816 | 2020 | 2300 | 2364 | |
| Whiteness (%) | 80.9 | 80.9 | 81.1 | 81.0 | 80.1 | 80.6 | 81 | 80.4 | 80.6 | 80.0 | 80.4 | 80.5 | 80.2 | 80.2 | 80.7 | |
| Glossiness (%) | 17.2 | 16.9 | 16.8 | 16.7 | 16.9 | 17.1 | 16.8 | 17.0 | 17.0 | 16.7 | 17.4 | 17.3 | 18.0 | 16.0 | 17.7 | |
| Smoothness (s) | 81 | 85 | 82 | 91 | 79 | 82 | 84 | 89 | 86 | 84 | 83 | 80 | 62 | 86 | 73 | |
| Surface strength (m/s) | Tear | 2.60 | 2.43 | 2.45 | 2.28 | 2.65 | 2.65 | 2.55 | 2.57 | 1.90 | 1.98 | 2.00 | 2.16 | 1.50 | 2.40 | 1.87 |
| Bubble | 1.96 | 1.87 | 1.95 | 1.92 | 1.97 | 1.93 | 1.92 | 1.96 | 1.85 | 1.87 | 1.92 | 1.96 | 1.40 | 1.90 | 1.62 | |
| Print gloss (%) | 65.4 | 62.7 | 57.7 | 59.3 | 58.3 | 60.0 | 63.0 | 62.7 | 56.3 | 56.2 | 59.2 | 64.3 | 66.7 | 55.3 | 60.3 | |
| Ink absorption (%) | 23.8 | 24.1 | 24.0 | 24.6 | 25.1 | 20.9 | 22.1 | 23.7 | 25.6 | 24.7 | 23.7 | 22.6 | 30.0 | 23.0 | 23.6 | |
| Water absorbent surface (g/m 2) | 38 | 44 | 38 | 43 | 39 | 42 | 38 | 39 | 51 | 54 | 48 | 47 | 41 | 54 | 51 | |
Claims (5)
1. the preparation method of a paper latex for coating, polymerization single polymerization monomer is aliphatics conjugated diene, aromatic ethenyl compound, vinyl unsaturated carboxylic acid, unsaturated amides, adopt two sections polymerization techniques, one section monomer, two sections monomers can adopt once, add polymerization in batches or continuously, can adopt general polymerization starter, emulsifying agent, chain-transfer agent during polymerization, polymerization temperature is 40～80 ℃, polymerization time 6～12h is characterised in that:
(1) first section polymerization single polymerization monomer is by C
3～C
5Vinyl unsaturated carboxylic acid, C
3～C
4Unsaturated amides, C
4～C
5Aliphatics conjugated diene, C
8～C
9Aromatic ethenyl compound form, its consumption is 25～50wt% of one, two section total monomer amount, in one-step polymerization, in the aliphatics conjugated diene of adding and the total amount of aromatic ethenyl compound is 100wt%, corresponding one-step polymerization set of monomers becomes: aliphatics conjugated diene 35～45wt%, aromatic ethenyl compound 55～65wt%, vinyl unsaturated carboxylic acid 5～10wt%, unsaturated amides 0.5～5.0wt%;
(2) second sections polymerization single polymerization monomers are by C
4～C
5Aliphatics conjugated diolefine, C
8～C
9Aromatic ethenyl compound form or add again C
3～C
5Vinyl unsaturated carboxylic acid, C
3～C
4One or both compositions in the unsaturated amides, its consumption is 50～75wt% of one, two section total monomer amount, in two sections polymerizations, in the aliphatics conjugated diene of adding and the total amount of aromatic ethenyl compound is 100wt%, corresponding two sections polymerization single polymerization monomers consist of: aliphatics conjugated diene 30～45wt%, aromatic ethenyl compound 55～70wt%, vinyl unsaturated carboxylic acid 0～3.0wt%, unsaturated amides 0～2.0wt%.
2. the preparation method of latex according to claim 1 is characterized in that the aliphatics conjugated diene is divinyl or isoprene.
3. the preparation method of latex according to claim 1 is characterized in that aromatic ethenyl compound is vinylbenzene or vinyl toluene and their mixture.
According to claim 1 the preparation method of fast latex, it is characterized in that the vinyl unsaturated carboxylic acid is methacrylic acid, vinylformic acid, methylene-succinic acid and their mixture.
5. the preparation method of latex according to claim 1 is characterized in that unsaturated amides is acrylamide, Methacrylamide, n-methylolacrylamide and their mixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97113381A CN1072685C (en) | 1997-08-14 | 1997-08-14 | Method for prepn. of latex for coating paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97113381A CN1072685C (en) | 1997-08-14 | 1997-08-14 | Method for prepn. of latex for coating paper |
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| Publication Number | Publication Date |
|---|---|
| CN1208736A CN1208736A (en) | 1999-02-24 |
| CN1072685C true CN1072685C (en) | 2001-10-10 |
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|---|---|---|---|
| CN97113381A Expired - Fee Related CN1072685C (en) | 1997-08-14 | 1997-08-14 | Method for prepn. of latex for coating paper |
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| CN100475887C (en) | 2001-11-26 | 2009-04-08 | 米其林技术公司 | Rubber composition for tread and method for manufacturing same |
| CN105542079A (en) * | 2016-02-19 | 2016-05-04 | 莱芜兴业滤材树脂有限公司 | Method for preparing styrene-butadiene latex without adding emulsifier |
| CN110416547B (en) * | 2018-04-26 | 2021-09-21 | 中国石油化工股份有限公司 | Slurry composition, preparation method thereof, battery cathode and lithium ion battery |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6163795A (en) * | 1984-09-03 | 1986-04-01 | ジェイエスアール株式会社 | Paper coating composition |
| CN87105487A (en) * | 1987-08-06 | 1988-07-27 | 中国石油化工总公司 | The preparation method of high-stability carboxylic butadiene-styrene latex |
| JPS63227892A (en) * | 1987-03-12 | 1988-09-22 | 住友ダウ株式会社 | Paper coating composition |
| JPH02210094A (en) * | 1989-02-01 | 1990-08-21 | Japan Synthetic Rubber Co Ltd | Copolymer latex and composition for coating paper |
| JPH04359001A (en) * | 1991-06-03 | 1992-12-11 | Sumitomo Dow Ltd | Production of copolymer latex and paper-coating composition produced by using the same |
-
1997
- 1997-08-14 CN CN97113381A patent/CN1072685C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6163795A (en) * | 1984-09-03 | 1986-04-01 | ジェイエスアール株式会社 | Paper coating composition |
| JPS63227892A (en) * | 1987-03-12 | 1988-09-22 | 住友ダウ株式会社 | Paper coating composition |
| CN87105487A (en) * | 1987-08-06 | 1988-07-27 | 中国石油化工总公司 | The preparation method of high-stability carboxylic butadiene-styrene latex |
| JPH02210094A (en) * | 1989-02-01 | 1990-08-21 | Japan Synthetic Rubber Co Ltd | Copolymer latex and composition for coating paper |
| JPH04359001A (en) * | 1991-06-03 | 1992-12-11 | Sumitomo Dow Ltd | Production of copolymer latex and paper-coating composition produced by using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1208736A (en) | 1999-02-24 |
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