CN100351462C - Prepn process of asbestos and non-asbestos latex sheet - Google Patents
Prepn process of asbestos and non-asbestos latex sheet Download PDFInfo
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- CN100351462C CN100351462C CNB2005100426753A CN200510042675A CN100351462C CN 100351462 C CN100351462 C CN 100351462C CN B2005100426753 A CNB2005100426753 A CN B2005100426753A CN 200510042675 A CN200510042675 A CN 200510042675A CN 100351462 C CN100351462 C CN 100351462C
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Abstract
The present invention relates to a method for preparing asbestos and non-asbestos latex paper making plates. In the method, firstly, asbestos or non-asbestos fibers are dispersed in water and then added with filling materials to be pulped; secondly, black carbon is added to be uniformly mixed; thirdly, latex, sulfur and antiageing agents are added to be uniformly mixed; finally, the uniformly mixed raw materials are sent to an approach system in front of a paper machine net, and cation polyacrylamide retention agents are added in front of a fan pump, a pressure sieve or a high position box of the approach system in front of the net, bentonite is added in front of a pulp flow box, and then the raw materials are moulded on the paper machine and dried. Since a proper amount of the cation polyacrylamide retention agents is added in front of the fan pump, the pressure sieve or the high position box of the approach system in front of the net and a proper amount of the bentonite is added in front of the pulp flow box, the raw materials of paper making plates obtain favorable water filter performance after flowing to the paper machine net part, and the beating degree of the raw materials lowers below 50 DEG SR so that the raw materials generate favorable dehydration and moulding effects in the net part.
Description
Technical field
The invention belongs to the crossing domain of rubber industry and paper industry, particularly a kind of asbestos latex board preparation method.
Background technology
Traditional asbestos rubber sheet mainly be with mixing mould pressing process produce (therefore, its product also is asbestos packing sheet), rubber adhesive needs through organic solvent dissolution in the production, mix with asbestos fibre, 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 asbestos latex board with paper process production, be called for short collecting plate), promptly earlier asbestos fibre 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, 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 asbestos latex board production process, beating degrees such as used asbestos fibre, 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 asbestos latex board preparation method who transforms to continuity method from batch process.
For achieving the above object, the technical solution used in the present invention is: at first, asbestos fibre is disperseed in water, making the mass concentration of the asbestos fibre after the dispersion is 1-30%, adding then with respect to the asbestos fibre 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 asbestos fibre mass ratio is the carbon black of 0-60%, mixes; And then to add with respect to the asbestos fibre 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 asbestos fibre, before head box, add bentonite with respect to the mass ratio 0.05-10.0% of asbestos fibre, at last, the moulding of on the paper machine, manufacturing paper with pulp, dry getting final product.
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, before head box, add bentonite with respect to the mass ratio 0.5% of carbon fiber with respect to the mass ratio 3% 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: 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; 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 asbestos fibre, before head box, add bentonite with respect to the mass ratio 8% of asbestos fibre, at last, the moulding of on the paper machine, manufacturing paper with pulp, dry getting final product.
Embodiment 5: at first, asbestos fibre is disperseed to make the mass concentration of the asbestos fibre after the dispersion in water be 7%, and adding then with respect to the asbestos 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 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; 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 asbestos fibre, before head box, add bentonite with respect to the mass ratio 4% of asbestos 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 (5)
1, a kind of asbestos latex board preparation method is characterized in that:
1) at first, asbestos fibre is disperseed in water, making the mass concentration of the asbestos fibre after the dispersion is 1-30%,, adding then with respect to the asbestos fibre 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 asbestos fibre mass ratio is the carbon black of 0-60%, mixes; And then to add with respect to the asbestos fibre 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 asbestos fibre, before head box, add bentonite with respect to the mass ratio 0.05-10.0% of asbestos fibre, at last, the moulding of on the paper machine, manufacturing paper with pulp, dry getting final product.
2, the method for raising 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 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 asbestos emulsoid wet board water filtering performance according to claim 1, it is characterized in that: at first, asbestos fibre is disperseed to make the mass concentration of the asbestos fibre after the dispersion in water be 1%, 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; 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 asbestos fibre, before head box, add bentonite with respect to the mass ratio 8% of asbestos fibre, at last, the moulding of on the paper machine, manufacturing paper with pulp, dry getting final product.
5, the method for raising asbestos emulsoid wet board water filtering performance according to claim 1, it is characterized in that: at first, asbestos fibre is disperseed to make the mass concentration of the asbestos fibre after the dispersion in water be 7%, adding then with respect to the asbestos 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 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; 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 asbestos fibre, before head box, add bentonite with respect to the mass ratio 4% of asbestos fibre, at last, the moulding of on the paper machine, manufacturing paper with pulp, dry getting final product.
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CNB2005100426753A CN100351462C (en) | 2005-05-18 | 2005-05-18 | Prepn process of asbestos and non-asbestos latex sheet |
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CNB2005100426753A CN100351462C (en) | 2005-05-18 | 2005-05-18 | Prepn process of asbestos and non-asbestos latex sheet |
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CNA200710129558XA Division CN101105022A (en) | 2005-05-18 | 2005-05-18 | Method for preparing non-asbestos latex sheet |
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CN100351462C true CN100351462C (en) | 2007-11-28 |
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Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101634121B (en) * | 2009-08-25 | 2012-11-07 | 陕西科技大学 | Method for preparing asbestos latex sheets |
CN101725074B (en) * | 2009-09-14 | 2012-05-23 | 陕西科技大学 | Method for increasing retention of paper filler |
CN102828433B (en) * | 2012-08-23 | 2015-07-22 | 南阳国宇密封发展有限公司 | Method for dewatering double sides of asbestos-free papermaking plate |
CN103103894B (en) * | 2012-12-27 | 2016-02-17 | 韶能集团广东绿洲纸模包装制品有限公司 | A kind of method improving molded pulp fiber retention |
CN104195870A (en) * | 2014-08-28 | 2014-12-10 | 无锡普爱德环保科技有限公司 | Ceramic fiber paper |
CN107130471B (en) * | 2017-05-10 | 2018-07-20 | 南阳森源塑胶有限公司 | Wrinkle face sealing plate material and preparation method thereof |
CN107237205B (en) * | 2017-06-27 | 2019-04-09 | 浙江津海机械科技有限公司 | A kind of asbestos latex board and preparation method thereof |
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