CN100593603C - Method for increasing water filtering performance of non-asbestos latex sheet - Google Patents
Method for increasing water filtering performance of non-asbestos latex sheet Download PDFInfo
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- CN100593603C CN100593603C CN200710129556A CN200710129556A CN100593603C CN 100593603 C CN100593603 C CN 100593603C CN 200710129556 A CN200710129556 A CN 200710129556A CN 200710129556 A CN200710129556 A CN 200710129556A CN 100593603 C CN100593603 C CN 100593603C
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Abstract
A method for improving the drainage property of a non-asbestos latex beater sheet comprises: firstly dispersing non-asbestos fibers in water and pulping the dispersed non-asbestos fibers together witha filler; then adding carbon black and mixing thoroughly; sequentially adding latex, sulphur and anti-aging agent and mixing thoroughly; and finally feeding the resulting mixture to the approach system of a paper making machine, adding a cationic polyacrylamide retention aid before the fan pump or press screen or headbox, making paper, and drying. In the invention, an appropriate amount of cationic polyacrylamide retention aid is added in the approach system of paper making machine, so as to significantly reduce the beating degree of pulp, improve the dewatering property of beater sheet in the wire section of paper machine, increase the drainage property of wire section of paper machine, and reduce the beating degree of raw material below 50oSR, thereby realizing excellent drainage and molding of raw materials in the wire section.
Description
The application is: on May 18th, 2005, application number is: 200510042676.8, and denomination of invention is: the dividing an application of a kind of method that improves asbestos and water filtering performance of non-asbestos latex sheet.
Technical field
The invention belongs to the crossing domain of rubber industry and paper industry, particularly a kind of method that improves water filtering performance of non-asbestos latex sheet.
Background technology
Traditional non-asbestos rubber sheet mainly be with mixing mould pressing process produce (therefore, its product also is non-asbestos packing sheet), be that rubber adhesive needs through organic solvent dissolution, mix with non-asbestos fiber, other compounding ingredient and filler then, make material for making clothes, make sealing plate material through two roller Cheng Zhangji calenderings again.This method is because energy resource consumption is big, it is big to pollute, efficient is low, and is superseded substantially at western developed country, turns on substantially at present that (its product is non-asbestos latex sheet with paper process production, be called for short collecting plate), promptly earlier non-asbestos fiber is disperseed in water, then, making beating adds and fills out, and adds glue and various auxiliary material, at last, through approach system, the moulding of on the paper machine, manufacturing paper with pulp, squeezing, drying cuts, packing, warehouse-in.The sheet material specification that adopts this production technology to produce is versatile and flexible, the sheet material softness, size and stable performance, even, processing and convenient transportation, and this production method need not with an organic solvent, and non-asbestos are wet-treating, therefore, the production security height, environmental pollution is few, in addition, the production efficiency of this method is higher than mixing die pressing far away.
But, because the water filtering performance of slurry is very poor in the non-asbestos latex sheet production process, beating degrees such as used non-asbestos fiber, filler very high (beating degree at 70 ° more than the SR), therefore, the slurry that has caused these raw materials to form is very difficult in the web part of paper machine dehydration, the paper machine can't normally be moved, can only on step cylinder mould machine, produce, can't on long mesh paper making machine, carry out serialization production.
Summary of the invention
The objective of the invention is to overcome the shortcoming of above-mentioned prior art, providing a kind of can improve the wet end dehydrating effect in collecting plate is produced, the production that makes collecting plate is from the method for batch process to the raising water filtering performance of non-asbestos latex sheet of continuity method production conversion.
For achieving the above object, the method that the present invention adopts is: at first, non-asbestos fiber is disperseed to make the mass concentration of the non-asbestos fiber after the dispersion in water be 1-30%, adding then with respect to the non-asbestos fiber mass ratio is the filler of 1-90%, changes 50-3000 and change making beating under 450 rev/mins rotating speed; Secondly, adding with respect to the non-asbestos fiber mass ratio is the carbon black of 0-60%, mixes; And then to add with respect to the non-asbestos fiber mass ratio be the latex of 2-40%, the sulphur of 0.1-20% and the age resistor of 0.01-15%, mixes; The above raw material that will mix is at last sent into the preceding approach system of paper machine net, adds the cationic polyacrylamide retention agent with respect to quality of fiber 0.02-5.0% before fan pump or pressurized screen or head box, the moulding of manufacturing paper with pulp on the paper machine, dry getting final product.
Non-asbestos fiber of the present invention is carbon fiber, glass fibre or aramid fiber; Filler is calcium carbonate, talcum powder or attapulgite; Age resistor is dihyaroquinoline or anilino-phenyl maleimide.
Because the present invention's approach system before paper machine net partly adds The addition of C PAM retention agent, can significantly reduce the beating degree of slurry, improve the dewatering of collecting plate at web part of paper machine, the water filtering performance of web part of paper machine is significantly improved, make the beating degree of online raw material reduce to 50 ° below the SR, thereby make raw material produce good dehydration and moulding at wet end.
Embodiment 1: at first, asbestos fibre is disperseed to make the mass concentration of the asbestos fibre after the dispersion in water be 1%, and adding then with respect to the asbestos fibre mass ratio is 90% calcium carbonate, changes 50 and change making beating under 450 rev/mins rotating speed; Secondly, adding with respect to the asbestos fibre mass ratio is 40% latex, 0.1% sulphur and 0.01% dihyaroquinoline, mixes; The above raw material that will mix is at last sent into the preceding approach system of paper machine net, adds the cationic polyacrylamide retention agent with respect to the quality 0.02% of asbestos fibre before fan pump, the moulding of manufacturing paper with pulp on the paper machine, dry getting final product.
Embodiment 2: at first, carbon fiber is disperseed to make the mass concentration of the carbon fiber after the dispersion in water be 30%, and adding then with respect to the carbon fiber mass ratio is 76% talcum powder, changes 3000 and change making beating under 450 rev/mins rotating speed; Secondly, adding with respect to the carbon fiber mass ratio is 32% carbon black, mixes; And then add with respect to the carbon fiber mass ratio to be 8% latex, 1.3% sulphur and 0.5% anilino-phenyl maleimide, to mix; The above raw material that will mix is at last sent into the preceding approach system of paper machine net, adds the cationic polyacrylamide retention agent with respect to the quality 3% of carbon fiber before pressurized screen, the moulding of manufacturing paper with pulp on the paper machine, dry getting final product.
Embodiment 3: at first, glass fibre is disperseed to make the mass concentration of the glass fibre after the dispersion in water be 18%, and adding then with respect to the glass fibre mass ratio is 55% attapulgite, changes 2600 and change making beating under 450 rev/mins rotating speed; Secondly, adding with respect to the glass fibre mass ratio is 45% carbon black, mixes; And then add with respect to the glass fibre mass ratio to be 2% latex, 16% sulphur and 1.8% dihyaroquinoline, to mix; The above raw material that will mix is at last sent into the preceding approach system of paper machine net, adds the cationic polyacrylamide retention agent with respect to the quality 0.5% of glass fibre before head box, the moulding of manufacturing paper with pulp on the paper machine, dry getting final product.
Embodiment 4: at first, aramid fiber is disperseed to make the mass concentration of the aramid fiber after the dispersion in water be 26%, and adding then with respect to the aramid fiber mass ratio is 32% calcium carbonate, changes 1500 and change making beating under 450 rev/mins rotating speed; Secondly, adding with respect to the aramid fiber mass ratio is 26% carbon black, mixes; And then add with respect to the aramid fiber mass ratio to be 15% latex, 10% sulphur and 5% anilino-phenyl maleimide, to mix; The above raw material that will mix is at last sent into the preceding approach system of paper machine net, adds the cationic polyacrylamide retention agent with respect to the quality 1.5% of aramid fiber before fan pump, the moulding of manufacturing paper with pulp on the paper machine, dry getting final product.
Embodiment 5: at first, asbestos fibre is disperseed to make the mass concentration of the non-asbestos fiber after the dispersion in water be 7%, and adding then with respect to the non-asbestos fiber mass ratio is 12% talcum powder, changes 800 and change making beating under 450 rev/mins rotating speed; Secondly, adding with respect to the asbestos fibre mass ratio is 10% carbon black, mixes; And then add with respect to the asbestos fibre mass ratio to be 36% latex, 7% sulphur and 12% dihyaroquinoline, to mix; The above raw material that will mix is at last sent into the preceding approach system of paper machine net, adds the cationic polyacrylamide retention agent with respect to quality of fiber 2% before pressurized screen, the moulding of manufacturing paper with pulp on the paper machine, dry getting final product.
Embodiment 6: at first, carbon fiber is disperseed to make the mass concentration of the carbon fiber after the dispersion in water be 13%, and adding then with respect to the carbon fiber mass ratio is 1% attapulgite, changes 450 and change making beating under 450 rev/mins rotating speed; Secondly, adding with respect to the carbon fiber mass ratio is 53% carbon black, mixes; And then add with respect to the carbon fiber mass ratio to be 27% latex, 14% sulphur and 15% anilino-phenyl maleimide, to mix; The above raw material that will mix is at last sent into the preceding approach system of paper machine net, adds the cationic polyacrylamide retention agent with respect to the quality 3.6% of carbon fiber before head box, the moulding of manufacturing paper with pulp on the paper machine, dry getting final product.
Embodiment 7: at first, asbestos fibre is disperseed to make the mass concentration of the asbestos fibre after the dispersion in water be 25%, and adding then with respect to the asbestos fibre mass ratio is 45% calcium carbonate, changes 120 and change making beating under 450 rev/mins rotating speed; Secondly, adding with respect to the asbestos fibre mass ratio is 60% carbon black, mixes; And then add with respect to the asbestos fibre mass ratio to be 13% latex, 20% sulphur and 10% dihyaroquinoline, to mix; The above raw material that will mix is at last sent into the preceding approach system of paper machine net, adds the cationic polyacrylamide retention agent with respect to the quality 5.0% of asbestos fibre before fan pump, the moulding of manufacturing paper with pulp on the paper machine, dry getting final product.
Claims (7)
1, a kind of method that improves water filtering performance of non-asbestos latex sheet is characterized in that:
1) at first, non-asbestos fiber is disperseed to make the mass concentration of the non-asbestos fiber after the dispersion in water be 1-30%, add then with respect to the non-asbestos fiber mass ratio is the filler of 1-90%, change 50-3000 and change making beating under 450 rev/mins rotating speed, said non-asbestos fiber is carbon fiber, glass fibre or aramid fiber;
2) secondly, adding with respect to the non-asbestos fiber mass ratio is the carbon black of 0-60%, mixes; And then to add with respect to the non-asbestos fiber mass ratio be the latex of 2-40%, the sulphur of 0.1-20% and the age resistor of 0.01-15%, mixes;
3) the above raw material that will mix is at last sent into the preceding approach system of paper machine net, adds the cationic polyacrylamide retention agent with respect to quality of fiber 0.02-5.0% before fan pump or pressurized screen or head box, the moulding of manufacturing paper with pulp on the paper machine, dry getting final product.
2, the method for raising non-asbestos emulsoid wet board water filtering performance according to claim 1 is characterized in that: said filler is calcium carbonate, talcum powder or attapulgite.
3, the method for raising non-asbestos emulsoid wet board water filtering performance according to claim 1 is characterized in that: said age resistor is dihyaroquinoline or anilino-phenyl maleimide.
4, the method for raising non-asbestos emulsoid wet board water filtering performance according to claim 1, it is characterized in that: at first, carbon fiber is disperseed to make the mass concentration of the carbon fiber after the dispersion in water be 30%, adding then with respect to the carbon fiber mass ratio is 76% talcum powder, changes 3000 and change making beating under 450 rev/mins rotating speed; Secondly, adding with respect to the carbon fiber mass ratio is 32% carbon black, mixes; And then add with respect to the carbon fiber mass ratio to be 8% latex, 1.3% sulphur and 0.5% anilino-phenyl maleimide, to mix; The above raw material that will mix is at last sent into the preceding approach system of paper machine net, adds the cationic polyacrylamide retention agent with respect to the quality 3% of carbon fiber before pressurized screen, the moulding of manufacturing paper with pulp on the paper machine, dry getting final product.
5, the method for raising non-asbestos emulsoid wet board water filtering performance according to claim 1, it is characterized in that: at first, glass fibre is disperseed to make the mass concentration of the glass fibre after the dispersion in water be 18%, adding then with respect to the glass fibre mass ratio is 55% attapulgite, changes 2600 and change making beating under 450 rev/mins rotating speed; Secondly, adding with respect to the glass fibre mass ratio is 45% carbon black, mixes; And then add with respect to the glass fibre mass ratio to be 2% latex, 16% sulphur and 1.8% dihyaroquinoline, to mix; The above raw material that will mix is at last sent into the preceding approach system of paper machine net, adds the cationic polyacrylamide retention agent with respect to the quality 0.5% of glass fibre before head box, the moulding of manufacturing paper with pulp on the paper machine, dry getting final product.
6, the method for raising non-asbestos emulsoid wet board water filtering performance according to claim 1, it is characterized in that: at first, aramid fiber is disperseed to make the mass concentration of the aramid fiber after the dispersion in water be 26%, adding then with respect to the aramid fiber mass ratio is 32% calcium carbonate, changes 1500 and change making beating under 450 rev/mins rotating speed; Secondly, adding with respect to the aramid fiber mass ratio is 26% carbon black, mixes; And then add with respect to the aramid fiber mass ratio to be 15% latex, 10% sulphur and 5% anilino-phenyl maleimide, to mix; The above raw material that will mix is at last sent into the preceding approach system of paper machine net, adds the cationic polyacrylamide retention agent with respect to the quality 1.5% of aramid fiber before fan pump, the moulding of manufacturing paper with pulp on the paper machine, dry getting final product.
7, the method for raising non-asbestos emulsoid wet board water filtering performance according to claim 1, it is characterized in that: at first, carbon fiber is disperseed to make the mass concentration of the carbon fiber after the dispersion in water be 13%, adding then with respect to the carbon fiber mass ratio is 1% attapulgite, changes 450 and change making beating under 450 rev/mins rotating speed; Secondly, adding with respect to the carbon fiber mass ratio is 53% carbon black, mixes; And then add with respect to the carbon fiber mass ratio to be 27% latex, 14% sulphur and 15% anilino-phenyl maleimide, to mix; The above raw material that will mix is at last sent into the preceding approach system of paper machine net, adds the cationic polyacrylamide retention agent with respect to the quality 3.6% of carbon fiber before head box, the moulding of manufacturing paper with pulp on the paper machine, dry getting final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710129556A CN100593603C (en) | 2005-05-18 | 2005-05-18 | Method for increasing water filtering performance of non-asbestos latex sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710129556A CN100593603C (en) | 2005-05-18 | 2005-05-18 | Method for increasing water filtering performance of non-asbestos latex sheet |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100426768A Division CN100351463C (en) | 2005-05-18 | 2005-05-18 | Method of raising water filtering performance of asbestos and non-asbestos latex sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101105021A CN101105021A (en) | 2008-01-16 |
| CN100593603C true CN100593603C (en) | 2010-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710129556A Expired - Fee Related CN100593603C (en) | 2005-05-18 | 2005-05-18 | Method for increasing water filtering performance of non-asbestos latex sheet |
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| Country | Link |
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| CN (1) | CN100593603C (en) |
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2005
- 2005-05-18 CN CN200710129556A patent/CN100593603C/en not_active Expired - Fee Related
Non-Patent Citations (4)
| Title |
|---|
| 胶乳抄取非石棉密封材. 刘美红，蔡仁良，谢苏江.橡胶工业，第51卷第2期. 2004 |
| 胶乳抄取非石棉密封材. 刘美红，蔡仁良，谢苏江.橡胶工业，第51卷第2期. 2004 * |
| 阳离子聚丙烯酰胺/微粒体系的助留助滤作用. 王进，陈克复，陈夫山，赵传山.中华纸业. 2003 |
| 阳离子聚丙烯酰胺/微粒体系的助留助滤作用. 王进，陈克复，陈夫山，赵传山.中华纸业. 2003 * |
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| Publication number | Publication date |
|---|---|
| CN101105021A (en) | 2008-01-16 |
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Granted publication date: 20100310 Termination date: 20120518 |