CN101105022A - Method for preparing non-asbestos latex sheet - Google Patents
Method for preparing non-asbestos latex sheet Download PDFInfo
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- CN101105022A CN101105022A CNA200710129558XA CN200710129558A CN101105022A CN 101105022 A CN101105022 A CN 101105022A CN A200710129558X A CNA200710129558X A CN A200710129558XA CN 200710129558 A CN200710129558 A CN 200710129558A CN 101105022 A CN101105022 A CN 101105022A
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Abstract
A preparation method of non-asbestos latex beater sheets comprises: firstly dispersing non-asbestos fibers in water and pulping after adding a 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 prior to the fan pump or press screen or head-tank of the approach system, adding bentonite prior to the headbox, making paper, and drying. In the invention, an appropriate amount of cationic polyacrylamide retention aid is added prior to the fan pump or press screen or head-tank of the approach system of paper making machine and sequentially an appropriate amount of bentonite prior to the headbox, so that the drainage property of beater sheet is improved after the raw material flows into the wire section of paper machine from the headbox and the beating degree of raw material in the wire section is reduced below 50oSR, thereby realizing excellent drainage and molding of raw materials in the wire section.
Description
Technical field
The invention belongs to the crossing domain of rubber industry and paper industry, particularly a kind of method for preparing 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), rubber adhesive needs through organic solvent dissolution in the production, 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again.This method is because energy resource consumption is big, it is big to pollute, efficient is low, and is superseded substantially at western developed country, turns on substantially at present that (its product is non-asbestos latex sheet with paper process production, be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, 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, and makes the production of collecting plate produce the method for preparing non-asbestos latex sheet that transforms to continuity method from batch process.
For achieving the above object, the technical solution used in the present invention is: at first, non-asbestos fiber is disperseed in water, making the mass concentration of the non-asbestos fiber after the dispersion is 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; At last, the raw material that mixes is sent into approach system before the paper machine net, before net, add cationic polyacrylamide retention agent before the fan pump of approach system or pressurized screen or the header box with respect to the mass ratio 0.01-5.0% of non-asbestos fiber, before head box, add bentonite with respect to the mass ratio 0.05-10.0% of non-asbestos fiber, at last, the moulding of on the paper machine, manufacturing paper with pulp, 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.
Owing to add an amount of cationic polyacrylamide retention agent before the fan pump of the present invention's approach system before collecting plate is produced gauze or pressurized screen or the header box, then, before head box, add proper amount of bentone, obtain good water filtering performance after making the collecting plate raw material deliver to web part of paper machine through head box stream, make the beating degree of online raw material reduce to 50 ° below the SR, thereby make raw material produce good dehydration and molding effect at wet end.
The specific embodiment
Embodiment 1: 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; At last, the raw material that mixes is sent into approach system before the paper machine net, before net, add cationic polyacrylamide retention agent before the pressurized screen of approach system with respect to the mass ratio 3% of carbon fiber, before head box, add bentonite with respect to the mass ratio 0.5% of carbon fiber, at last, the moulding of on the paper machine, manufacturing paper with pulp, dry getting final product.
Embodiment 2: at first, glass fibre is disperseed to make the mass concentration of the glass fibre after the dispersion in water be 13%, and adding then with respect to the glass fibre mass ratio is 1% attapulgite, changes 450 and change making beating under 450 rev/mins rotating speed; Secondly, adding with respect to the glass fibre mass ratio is 53% carbon black, mixes; And then add with respect to the glass fibre mass ratio to be 27% latex, 14% sulphur and 15% anilino-phenyl maleimide, to mix; At last, the raw material that mixes is sent into approach system before the paper machine net, before net, add cationic polyacrylamide retention agent before the header box of approach system with respect to the mass ratio 1% of glass fibre, before head box, add bentonite with respect to the mass ratio 0.05% of glass fibre, at last, the moulding of on the paper machine, manufacturing paper with pulp, dry getting final product.
Embodiment 3: 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; At last, the raw material that mixes is sent into approach system before the paper machine net, before net, add cationic polyacrylamide retention agent before the fan pump of approach system with respect to the mass ratio 0.6% of aramid fiber, before head box, add bentonite with respect to the mass ratio 10% of aramid fiber, at last, the moulding of on the paper machine, manufacturing paper with pulp, dry getting final product.
Embodiment 4: at first, carbon fiber is disperseed to make the mass concentration of the carbon fiber after the dispersion in water be 1%, and adding then with respect to the carbon fiber mass ratio is 90% calcium carbonate, changes 50 and change making beating under 450 rev/mins rotating speed; Secondly, adding with respect to the carbon fiber mass ratio is 40% latex, 0.1% sulphur and 0.01% dihyaroquinoline, mixes; At last, the raw material that mixes is sent into approach system before the paper machine net, before net, add cationic polyacrylamide retention agent before the fan pump of approach system with respect to the mass ratio 5% of carbon fiber, before head box, add bentonite with respect to the mass ratio 8% of carbon fiber, at last, the moulding of on the paper machine, manufacturing paper with pulp, dry getting final product.
Embodiment 5: at first, glass fibre is disperseed to make the mass concentration of the glass fibre after the dispersion in water be 7%, and adding then with respect to the glass fibre mass ratio is 12% talcum powder, changes 800 and change making beating under 450 rev/mins rotating speed; Secondly, adding with respect to the glass fibre mass ratio is 10% carbon black, mixes; And then add with respect to the glass fibre mass ratio to be 36% latex, 7% sulphur and 12% dihyaroquinoline, to mix; At last, the raw material that mixes is sent into approach system before the paper machine net, before net, add cationic polyacrylamide retention agent before the pressurized screen of approach system with respect to the mass ratio 2% of glass fibre, before head box, add bentonite with respect to the mass ratio 4% of glass fibre, at last, the moulding of on the paper machine, manufacturing paper with pulp, dry getting final product.
Embodiment 6: at first, aramid fiber is disperseed to make the mass concentration of the aramid fiber after the dispersion in water be 25%, and adding then with respect to the aramid fiber mass ratio is 45% calcium carbonate, changes 120 and change making beating under 450 rev/mins rotating speed; Secondly, adding with respect to the aramid fiber mass ratio is 60% carbon black, mixes; And then add with respect to the aramid fiber mass ratio to be 13% latex, 20% sulphur and 10% dihyaroquinoline, to mix; At last, the raw material that mixes is sent into approach system before the paper machine net, before net, add cationic polyacrylamide retention agent before the fan pump of approach system with respect to the mass ratio 4% of aramid fiber, before head box, add bentonite with respect to the mass ratio 2% of aramid fiber, at last, the moulding of on the paper machine, manufacturing paper with pulp, dry getting final product.
Embodiment 7: 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; At last, the raw material that mixes is sent into approach system before the paper machine net, before net, add cationic polyacrylamide retention agent before the header box of approach system with respect to the mass ratio 0.01% of glass fibre, before head box, add bentonite with respect to the mass ratio 1.6% of glass fibre, at last, the moulding of on the paper machine, manufacturing paper with pulp, dry getting final product.
Claims (10)
1. method for preparing non-asbestos latex sheet is characterized in that:
1) at first, non-asbestos fiber is disperseed in water, making the mass concentration of the non-asbestos fiber after the dispersion is 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;
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) last, the raw material that mixes is sent into approach system before the paper machine net, before net, add cationic polyacrylamide retention agent before the fan pump of approach system or pressurized screen or the header box with respect to the mass ratio 0.01-5.0% of non-asbestos fiber, before head box, add bentonite with respect to the mass ratio 0.05-10.0% of non-asbestos fiber, at last, the moulding of on the paper machine, manufacturing paper with pulp, 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 non-asbestos fiber is carbon fiber, glass fibre or aramid fiber.
3. 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.
4. 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.
5. 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; At last, the raw material that mixes is sent into approach system before the paper machine net, before net, add cationic polyacrylamide retention agent before the pressurized screen of approach system with respect to the mass ratio 3% of carbon fiber, before head box, add bentonite with respect to the mass ratio 0.5% of carbon fiber, at last, the moulding of on the paper machine, manufacturing paper with pulp, 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, glass fibre is disperseed to make the mass concentration of the glass fibre after the dispersion in water be 13%, adding then with respect to the glass fibre mass ratio is 1% attapulgite, changes 450 and change making beating under 450 rev/mins rotating speed; Secondly, adding with respect to the glass fibre mass ratio is 53% carbon black, mixes; And then add with respect to the glass fibre mass ratio to be 27% latex, 14% sulphur and 15% anilino-phenyl maleimide, to mix; At last, the raw material that mixes is sent into approach system before the paper machine net, before net, add cationic polyacrylamide retention agent before the header box of approach system with respect to the mass ratio 1% of glass fibre, before head box, add bentonite with respect to the mass ratio 0.05% of glass fibre, at last, the moulding of on the paper machine, manufacturing paper with pulp, 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, 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; At last, the raw material that mixes is sent into approach system before the paper machine net, before net, add cationic polyacrylamide retention agent before the fan pump of approach system with respect to the mass ratio 0.6% of aramid fiber, before head box, add bentonite with respect to the mass ratio 10% of aramid fiber, at last, the moulding of on the paper machine, manufacturing paper with pulp, dry getting final product.
8. 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 1%, adding then with respect to the carbon fiber mass ratio is 90% calcium carbonate, changes 50 and change making beating under 450 rev/mins rotating speed; Secondly, adding with respect to the carbon fiber mass ratio is 40% latex, 0.1% sulphur and 0.01% dihyaroquinoline, mixes; At last, the raw material that mixes is sent into approach system before the paper machine net, before net, add cationic polyacrylamide retention agent before the fan pump of approach system with respect to the mass ratio 5% of carbon fiber, before head box, add bentonite with respect to the mass ratio 8% of carbon fiber, at last, the moulding of on the paper machine, manufacturing paper with pulp, dry getting final product.
9. 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 7%, adding then with respect to the glass fibre mass ratio is 12% talcum powder, changes 800 and change making beating under 450 rev/mins rotating speed; Secondly, adding with respect to the glass fibre mass ratio is 10% carbon black, mixes; And then add with respect to the glass fibre mass ratio to be 36% latex, 7% sulphur and 12% dihyaroquinoline, to mix; At last, the raw material that mixes is sent into approach system before the paper machine net, before net, add cationic polyacrylamide retention agent before the pressurized screen of approach system with respect to the mass ratio 2% of glass fibre, before head box, add bentonite with respect to the mass ratio 4% of glass fibre, at last, the moulding of on the paper machine, manufacturing paper with pulp, dry getting final product.
10. 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 25%, adding then with respect to the aramid fiber mass ratio is 45% calcium carbonate, changes 120 and change making beating under 450 rev/mins rotating speed; Secondly, adding with respect to the aramid fiber mass ratio is 60% carbon black, mixes; And then add with respect to the aramid fiber mass ratio to be 13% latex, 20% sulphur and 10% dihyaroquinoline, to mix; At last, the raw material that mixes is sent into approach system before the paper machine net, before net, add cationic polyacrylamide retention agent before the fan pump of approach system with respect to the mass ratio 4% of aramid fiber, before head box, add bentonite with respect to the mass ratio 2% of aramid fiber, at last, the moulding of on the paper machine, manufacturing paper with pulp, dry getting final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710129558XA CN101105022A (en) | 2005-05-18 | 2005-05-18 | Method for preparing non-asbestos latex sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710129558XA CN101105022A (en) | 2005-05-18 | 2005-05-18 | Method for preparing non-asbestos latex sheet |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100426753A Division CN100351462C (en) | 2005-05-18 | 2005-05-18 | Prepn process of asbestos and non-asbestos latex sheet |
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| Publication Number | Publication Date |
|---|---|
| CN101105022A true CN101105022A (en) | 2008-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA200710129558XA Pending CN101105022A (en) | 2005-05-18 | 2005-05-18 | Method for preparing non-asbestos latex sheet |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102191711A (en) * | 2010-03-17 | 2011-09-21 | 中国制浆造纸研究院 | Proportioning method for increasing pulp drainage speed of fiber composite materials in paper making method |
| CN102817272A (en) * | 2012-08-23 | 2012-12-12 | 南阳国宇密封发展有限公司 | Method for continuous production of high-volume asbestos-free latex isolating sheet |
| CN102828433A (en) * | 2012-08-23 | 2012-12-19 | 南阳国宇密封发展有限公司 | Method for dewatering double sides of asbestos-free papermaking plate |
| CN104911948A (en) * | 2015-06-04 | 2015-09-16 | 浙江理工大学 | Preparation technology of vulcanized rubber latex-sealed paperboard |
| CN107685382A (en) * | 2017-10-19 | 2018-02-13 | 薛银福 | One kind sealing is with without asbestos latex board |
| CN111996834A (en) * | 2020-07-17 | 2020-11-27 | 浙江理工大学 | Method for improving retention and drainage performance of paper stock |
-
2005
- 2005-05-18 CN CNA200710129558XA patent/CN101105022A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102191711A (en) * | 2010-03-17 | 2011-09-21 | 中国制浆造纸研究院 | Proportioning method for increasing pulp drainage speed of fiber composite materials in paper making method |
| CN102817272A (en) * | 2012-08-23 | 2012-12-12 | 南阳国宇密封发展有限公司 | Method for continuous production of high-volume asbestos-free latex isolating sheet |
| CN102828433A (en) * | 2012-08-23 | 2012-12-19 | 南阳国宇密封发展有限公司 | Method for dewatering double sides of asbestos-free papermaking plate |
| CN102817272B (en) * | 2012-08-23 | 2015-01-07 | 南阳国宇密封发展有限公司 | Method for continuous production of high-volume asbestos-free latex isolating sheet |
| CN104911948A (en) * | 2015-06-04 | 2015-09-16 | 浙江理工大学 | Preparation technology of vulcanized rubber latex-sealed paperboard |
| CN107685382A (en) * | 2017-10-19 | 2018-02-13 | 薛银福 | One kind sealing is with without asbestos latex board |
| CN107685382B (en) * | 2017-10-19 | 2019-12-03 | 泉州台商投资区笙沓新材料有限公司 | A kind of no asbestos latex board of sealing |
| CN111996834A (en) * | 2020-07-17 | 2020-11-27 | 浙江理工大学 | Method for improving retention and drainage performance of paper stock |
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