CN102898670B - Biodegradable environmentally-friendly paper and preparation method thereof - Google Patents
Biodegradable environmentally-friendly paper and preparation method thereof Download PDFInfo
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- CN102898670B CN102898670B CN201210128453.3A CN201210128453A CN102898670B CN 102898670 B CN102898670 B CN 102898670B CN 201210128453 A CN201210128453 A CN 201210128453A CN 102898670 B CN102898670 B CN 102898670B
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Abstract
The invention belongs to the field of papermaking, relates to an environmentally-friendly paper prepared from a non-wood pulp and non-paper pulp raw material and especially relates to a biodegradable environmentally-friendly paper and a preparation method thereof. The raw material of the biodegradable environmentally-friendly paper is natural high-molecular weight starch having biodegradability, wherein the natural high-molecular weight starch is unedible starch. The preparation method comprises that the raw material is added with inorganic filler powder and assistants of one or more binders, one or more coupling agents, one or more lubricants and one or more plasticizers; the mixture is granulated by a screw extruder; the granules are processed into a film by a film blowing device, a rolling device or a curtain coating device; the film is coated with a coating liquid layer by a coating machine; and the film with the coating liquid layer is dried and flattened to form the biodegradable environmentally-friendly paper. The biodegradable environmentally-friendly paper has good biodegradability and good use performances.
Description
Technical field
The invention belongs to field of papermaking, relate to a kind of the take environment protecting paper that non-wood pulp, non-paper pulp be raw material, particularly a kind of biodegradable environment protecting paper and preparation method thereof.
Background technology
At present, writing paper employed both at home and abroad, copy paper using, sanitary paper, paper for daily use, decoration paper etc., use the production paper that wood pulp, paper pulp are raw material more, so just consume and expected a large amount of natural resourcess such as trees.And, in paper-making process, consumed a large amount of water, also produced a large amount of sewage to environment.So people are finding new material replacement pulp production paper articles for use, to solve resource problem and problem of environmental pollution.
In finding the process of new material replacement pulp production paper articles for use, people notice that sight plastic paper (has person for stone paper gradually, also may be because stone powder accounts for the cause of main component) on, so-called plastic paper adds one or more in the powder of the ore powders such as the calcium carbonate (can be also a kind of powder of stone mill calciferous, or light calcium carbonate---chemical reaction obtaining), titanium dioxide, silicon-dioxide, carclazyte of 50～80wt% or chemical reaction in the plastics such as polyethylene, polypropylene or polyvinyl chloride.What also have adds saleratus, so that biodegradable after use, reduces the impact on environment.But this saleratus that adds 0.3～0.5wt% in polyolefine, is far from being enough for solving polyolefinic degraded, polyolefinic degraded is still difficult to degrade under the effect of this saleratus.Such plastic paper (or being so-called biodegradable paper) is not only non-degradable, also can cause the pollution again to environment.So, develop a kind of real biodegradable paper, be the task of top priority, be also the needs of social development.
New millennium will face two large problems, and the one, resource problem (energy problem); The 2nd, problem of environmental pollution.Due to a large amount of exploitations of petroleum resources and increasing sharply of petroleum products consumption, cause petroleum resources increasingly exhausted (it was reported that approximately also have 40 years can recovery time), environmental pollution is day by day serious.The plastics of a large amount of use hard degradation of people particularly, " white pollution " that cause makes us startling." CDM plan (i.e. the clean Development Technology plan) " that United Nations carries out, object is worldwide to reduce waste discharge and reduce environmental pollution.Therefore, find the new resources of Sustainable development, explore and research environment friendly materials, become an important topic of current survival and development of mankind.The natural macromolecular material such as starch, Mierocrystalline cellulose, is to lean on the photosynthesis of plant to obtain, and resource is extremely abundant, extensively be present in the middle of the fruit, bar stem of plant, and there is sustainable developability, and easily degraded in physical environment, be the ideal material addressing the above problem.Natural macromolecular material has good biological degradability and sustainability of natural resources, therefore, carries out research and the application of biodegradable material, has caused the great attention of countries in the world government.
Plastics are entering in short twenties years of China as wrapping material, and the output of plastics has jumped becomes the 4th, the world.China's environmental protection investments to nineteen ninety-five in 1991 are 80,000,000,000 yuan, within 1996 to 2000, reach 4,500 hundred million yuan, have seriously restricted the Economic development of China.The hard degradation of plastic packing product, the serious harm of its " white pollution " has caused loss difficult to the appraisal to society and environment, if do not controlled and preventing, bring great detrimentally affect will to our descendants, the earth of living to us.The problem of this respect has caused the attention of countries in the world governments, and actively takes measures to be prevented, and seeks new substitute, to solve the problem of environmental pollution.And the enterprise that produces at present plastic paper has solved resource problem and the pollution problem of paper pulp papermaking on the one hand, and on the other hand also at a large amount of generation source of pollution.
As plastic paper, in the just initial stage of today, just should take positive measure, avoid causing in the future a large amount of pollutions as plastic wrapping.Meanwhile, use Biodegradable material that should be positive and goods replace plastics, produce various paper usings.
The biodegradable environment protecting paper that the present invention proposes, can use non-food starch, if tapioca (flour), outmoded starch (rotten without nutrition) and inorganic ore powder etc. are raw material, solved on the one hand papermaking to the problem that affects of resource and the pollution problem that causes environment; Also solved on the other hand " white pollution " problem of plastics.
Summary of the invention
One of object of the present invention is to provide and a kind ofly can impact resource, biodegradable environment protecting paper that can be to environment, this environment protecting paper fully biodegradable.
Two of object of the present invention is to provide a kind of preparation method of biodegradable environment protecting paper.
Biodegradable environment protecting paper of the present invention is that the raw material of following component is proportionally joined in homogenizer and mixed, through screw extrusion press extruding pelletization, use film blowing device, rolling equipment or casting apparatus to be prepared into film, through coating machine, on film, be coated with one deck coating fluid, then dry, pressing can prepare described biodegradable environment protecting paper.
Biodegradable environment protecting paper of the present invention is by film, and the coating being obtained after drying by the coating fluid applying on described film forms; Wherein:
The composition of described film and component concentration are:
The composition of described coating fluid and component concentration are:
Polyacrylate dispersion, polyaminoester emulsion or their mixture 30～75wt%
Mineral filler powder 20～40wt%
Water surplus
The particle diameter of the mineral filler powder in described film is 800～2000 orders.Mineral filler powder in described film is selected from one or more in Paris white, magnesium hydroxide powder, titanium dioxide, magnesium hydroxide ore powder and silicate mine stone flour etc.
The particle diameter of the mineral filler powder in described coating fluid is 800～2000 orders.Mineral filler powder in described coating fluid is selected from one or more in light calcium carbonate, talcum powder and titanium dioxide.
Described starch can be unedible industrial starch; It is W-Gum, tapioca (flour) or their mixture.
Described tackiness agent is polyvinyl alcohol (PVA), ethylene-vinyl acetate copolymer (EVA) or their mixture.
Described softening agent is selected from one or more in sorbyl alcohol, glycerol and dioctyl phthalate (DOP).
Described lubricant is whiteruss, polyethylene wax or their mixture.
Described coupling agent is silane coupling agent and/or titanate coupling agent.
Described silane coupling agent is selected from one or more in KH550, KH560 and KH570.
Solid content in described polyaminoester emulsion, polyacrylate dispersion or their mixture is between 40～50%.
The preparation method of biodegradable environment protecting paper of the present invention: by the starch of 20～40wt% (industrial starch), the mineral filler powder of 50～70wt%, the tackiness agent of 1～4wt%, the softening agent of 1～4wt%, the lubricant of 0.5～1wt% and the coupling agent of 0.5～1wt% join in homogenizer and mix, then through screw extrusion press (single screw extrusion machine or twin screw extruder) extruding pelletization, by the pellet after granulation at film blowing device, on rolling equipment or casting apparatus, be prepared into film, by the film process coating machine being prepared into, on the surface of film, be coated with one deck coating fluid, through further dry, pressing prepares described biodegradable environment protecting paper.The techniques such as the biodegradable environment protecting paper of gained can further cut, preparation becomes the finished product of all size.
The particle diameter of the mineral filler powder in described film is 800～2000 orders.Mineral filler powder in described film is selected from one or more in Paris white, magnesium hydroxide powder, titanium dioxide, magnesium hydroxide ore powder and silicate mine stone flour etc.
The composition of described coating fluid and component concentration are:
Polyacrylate dispersion, polyaminoester emulsion or their mixture 30～75wt%
Mineral filler powder 20～40wt%
Water surplus
The particle diameter of the mineral filler powder in described coating fluid is 800～2000 orders.Mineral filler powder in described coating fluid is selected from one or more in light calcium carbonate, talcum powder and titanium dioxide.
Solid content in described polyaminoester emulsion, polyacrylate dispersion or their mixture is between 40～50%.
The present invention is the biological degradability principle based on natural macromolecular material, designs and prepare a kind of environment protecting paper with biodegradable.Environment protecting paper of the present invention raw material used is to adopt the natural macromolecular material starch with biological degradability, and this starch can be non-food starch.Also to add natural mineral filler powder, and add the auxiliary agents such as tackiness agent, coupling agent, lubricant, softening agent, through screw extrusion press granulation, then use film blowing device, rolling equipment or casting apparatus to be prepared into film.Through coating machine, on the film of preparing, be coated with one deck coating fluid, then through super-dry, flatten, cut, be prepared into paper not of uniform size.This environment protecting paper has good biological degradability, and good use properties.
Embodiment
Embodiment 1
The particle diameter of the W-Gum of 40wt%, 54wt% is that 1000 object Paris whites, the poly (vinyl alcohol) binder of 1wt%, the softening agent of 4wt% (3wt% sorbyl alcohol+1wt% gathers dioctyl phthalate (DOP)), the polyethylene wax of 0.5wt% and the Silane coupling agent KH550 of 0.5wt% join in homogenizer blending dispersion even, then through screw extrusion press extruding pelletization, the pellet after granulation is prepared into film on film blowing device.
The film of blowing out, through coating machine, is coated with to one deck coating fluid on the surface of film, then through super-dry, pressing, prepares biodegradable environment protecting paper.According to the requirement to paper, the biodegradable environment protecting paper of gained such as can further cut at the technique, and preparation becomes the finished product paper of all size.
Described coating fluid is that (particle diameter is 800 object light calcium carbonate 20wt% by the mineral filler powder of the commercial polyaminoester emulsion of the commercial polyacrylate dispersion of 10wt% and 40wt% (total amount of the solid content in polyaminoester emulsion and polyacrylate dispersion is 45wt%) and 40wt%, particle diameter is 2000 object talcum powder 18wt%, and particle diameter is 2000 object titanium dioxide 2wt%) be mixed with and obtain with the water of surplus.
Embodiment 2
The particle diameter of the W-Gum of 20wt%, 70wt% is that 2000 object calcium carbonate, the poly (vinyl alcohol) binder of 4wt%, the softening agent of 4wt% (3wt% glycerol+1wt% gathers dimethyl phthalate), the whiteruss of 1wt% and the silane coupling agent KH560 of 1wt% join in homogenizer blending dispersion even, then through screw extrusion press extruding pelletization, the pellet after granulation is prepared into film on film blowing device.
The film of blowing out, through coating machine, is coated with to one deck coating fluid on the surface of film, then through super-dry, pressing, prepares biodegradable environment protecting paper.According to the requirement to paper, the biodegradable environment protecting paper of gained such as can further cut at the technique, and preparation becomes the finished product paper of all size.
Described coating fluid is that the water of the mineral filler powder of the commercial polyaminoester emulsion of the commercial polyacrylate dispersion of 40wt% and 10wt% (total amount of the solid content in polyaminoester emulsion and polyacrylate dispersion is 45wt%) and 20wt% (particle diameter is 800 object light calcium carbonate 10wt%, and particle diameter is 2000 object talcum powder 10wt%) and surplus is mixed with and is obtained.
Embodiment 3
The particle diameter of the tapioca (flour) of 30wt%, 63.5wt% is that the ethylene-vinyl acetate copolymer tackiness agent of 1200 object Paris whites, 1wt%, the softening agent of 4wt% (3wt% sorbyl alcohol+1wt% glycerol), the whiteruss of 1wt% and the silane coupling agent KH570 of 0.5wt% join in homogenizer blending dispersion even, then through screw extrusion press extruding pelletization, the pellet after granulation is prepared into film on casting films equipment.
The film of blowing out, through coating machine, is coated with to one deck coating fluid on the surface of film, then through super-dry, pressing, prepares biodegradable environment protecting paper.According to the requirement to paper, the biodegradable environment protecting paper of gained such as can further cut at the technique, and preparation becomes the finished product paper of all size.
Described coating fluid is that (particle diameter is 2000 object light calcium carbonate 20wt% by the mineral filler powder of the commercial polyaminoester emulsion of the commercial polyacrylate dispersion of 30wt% and 20wt% (total amount of the solid content in polyaminoester emulsion and polyacrylate dispersion is 45wt%) and 40wt%, particle diameter is 800 object talcum powder 19wt%, and particle diameter is 2000 object titanium dioxide 1wt%) be mixed with and obtain with the water of surplus.
Embodiment 4
The particle diameter of the tapioca (flour) of the W-Gum of 20wt%, 10wt%, 64wt% is that 2000 object magnesium hydroxide powder, the EVA tackiness agent of 1wt%, the softening agent of 4wt% (1wt% sorbyl alcohol+3wt% glycerol), the polyethylene wax of 0.5wt% and the silane coupling agent KH570 of 0.5wt% join in homogenizer blending dispersion even, then through screw extrusion press extruding pelletization, the pellet after granulation is prepared into film on casting films equipment.
The film of blowing out, through coating machine, is coated with to one deck coating fluid on the surface of film, then through super-dry, pressing, prepares biodegradable environment protecting paper.According to the requirement to paper, the biodegradable environment protecting paper of gained such as can further cut at the technique, and preparation becomes the finished product paper of all size.
The water that described coating fluid is is 800 object light calcium carbonate powder and surplus by the particle diameter of the commercial polyacrylate dispersion of 60wt% (solid content in polyacrylate dispersion is 40wt%), 30wt% is mixed with and obtains.
Embodiment 5
The particle diameter of the W-Gum of 40wt%, 53wt% is that 2000 object magnesium hydroxide ore powders, the poly (vinyl alcohol) binder of 3wt%, the glycerol softening agent of 3wt%, the polyethylene wax of 0.5wt% and the titanate coupling agent of 0.5wt% join in homogenizer blending dispersion even, then through screw extrusion press extruding pelletization, the pellet after granulation is prepared into film on calendered film equipment.
The film of blowing out, through coating machine, is coated with to one deck coating fluid on the surface of film, then through super-dry, pressing, prepares biodegradable environment protecting paper.According to the requirement to paper, the biodegradable environment protecting paper of gained such as can further cut at the technique, and preparation becomes the finished product paper of all size.
Described coating fluid is that (particle diameter is 800 object light calcium carbonate 10wt% by the commercial mineral filler powder of the commercial polyaminoester emulsion of 75wt% (solid content in polyaminoester emulsion is 50wt%), 20wt%, particle diameter is 2000 object talcum powder 9wt%, and particle diameter is 800 object titanium dioxide 1wt%) and the water of surplus be mixed with and obtain.
Embodiment 6
The particle diameter of the W-Gum of 40wt%, 50.5wt% is that 2000 object silicate mine stone flours, the poly (vinyl alcohol) binder of 4wt%, the softening agent of 4wt% (2wt% sorbyl alcohol+2wt% gathers dioctyl phthalate (DOP)), the whiteruss of 1wt% and the silane coupling agent KH560 of 0.5wt% join in homogenizer blending dispersion even, then through screw extrusion press extruding pelletization, the pellet after granulation is prepared into film on calendered film equipment.
The film of blowing out, through coating machine, is coated with to one deck coating fluid on the surface of film, then through super-dry, pressing, prepares biodegradable environment protecting paper.According to the requirement to paper, the biodegradable environment protecting paper of gained such as can further cut at the technique, and preparation becomes the finished product paper of all size.
Described coating fluid is that the water of the mineral filler powder of the commercial polyaminoester emulsion of the commercial polyacrylate dispersion of 30wt% and 20wt% (total amount of the solid content in polyaminoester emulsion and polyacrylate dispersion is 45wt%) and 40wt% (particle diameter is 800 object light calcium carbonate 20wt%, and particle diameter is 2000 object talcum powder 20wt%) and surplus is mixed with and is obtained.
Embodiment 7
It is even that the particle diameter that is 2000 object Paris whites, 3.5wt% by the particle diameter of the W-Gum of 30wt%, 60wt% is that 2000 object magnesium hydroxide powder, the poly (vinyl alcohol) binder of 4wt%, the softening agent of 1wt% (0.5wt% sorbyl alcohol+0.5wt% gathers dioctyl phthalate (DOP)), the polyethylene wax of 0.5wt% and the Silane coupling agent KH550 of 1wt% join in homogenizer blending dispersion, then through screw extrusion press extruding pelletization, the pellet after granulation is prepared into film on casting films equipment.
The film of blowing out, through coating machine, is coated with to one deck coating fluid on the surface of film, then through super-dry, pressing, prepares biodegradable environment protecting paper.According to the requirement to paper, the biodegradable environment protecting paper of gained such as can further cut at the technique, and preparation becomes the finished product paper of all size.
Described coating fluid is that the water of the mineral filler powder of the commercial polyaminoester emulsion of the commercial polyacrylate dispersion of 10wt% and 40wt% (total amount of the solid content in polyaminoester emulsion and polyacrylate dispersion is 45wt%) and 40wt% (particle diameter is 800 object light calcium carbonate powder 20wt%, and particle diameter is 2000 object talcum powder 20wt%) and surplus is mixed with and is obtained.
Embodiment 8
It is even that the particle diameter that is 2000 object Paris whites, 21.5wt% by the particle diameter of the W-Gum of 30wt%, 40wt% is that the EVA tackiness agent of 800 object titanium dioxides, 3wt%, the softening agent of 4wt% (3wt% sorbyl alcohol+1wt% gathers dioctyl phthalate (DOP)), the whiteruss of 0.5wt%, the silane coupling agent KH560 of the titanate coupling agent of 0.5wt% and 0.5wt% join in homogenizer blending dispersion, then through screw extrusion press extruding pelletization, the pellet after granulation is prepared into film on film blowing device.
The film of blowing out, through coating machine, is coated with to one deck coating fluid on the surface of film, then through super-dry, pressing, prepares biodegradable environment protecting paper.According to the requirement to paper, the biodegradable environment protecting paper of gained such as can further cut at the technique, and preparation becomes the finished product paper of all size.
Described coating fluid is that the water of the mineral filler powder of the commercial polyaminoester emulsion of the commercial polyacrylate dispersion of 30wt% and 30wt% (total amount of the solid content in polyaminoester emulsion and polyacrylate dispersion is 40wt%) and 30wt% (particle diameter is 800 object light calcium carbonate powder 29wt%, and particle diameter is 2000 object titanium dioxide 1wt%) and surplus is mixed with and is obtained.
Claims (8)
1. a biodegradable environment protecting paper, is characterized in that, described biodegradable environment protecting paper is by film, and the coating being obtained after drying by the coating fluid applying on described film forms; Wherein:
The composition of described film and component concentration are:
Mineral filler powder in described film is selected from one or more in Paris white, magnesium hydroxide powder, titanium dioxide and silicate mine stone flour;
Described softening agent is selected from one or more in sorbyl alcohol, glycerol and dioctyl phthalate (DOP);
The composition of described coating fluid and component concentration are:
Polyacrylate dispersion, polyaminoester emulsion or their mixture 30～75wt%
Mineral filler powder 20～40wt%
Water surplus
Solid content in described polyaminoester emulsion, polyacrylate dispersion or their mixture is between 40～50%; Mineral filler powder in described coating fluid is selected from one or more in light calcium carbonate, talcum powder and titanium dioxide.
2. biodegradable environment protecting paper according to claim 1, is characterized in that: the particle diameter of the mineral filler powder in described film is 800～2000 orders; The particle diameter of the mineral filler powder in described coating fluid is 800～2000 orders.
3. biodegradable environment protecting paper according to claim 1, is characterized in that: described starch is W-Gum, tapioca (flour) or their mixture.
4. biodegradable environment protecting paper according to claim 1, is characterized in that: described tackiness agent is polyvinyl alcohol, ethylene-vinyl acetate copolymer or their mixture.
5. biodegradable environment protecting paper according to claim 1, is characterized in that: described lubricant is whiteruss, polyethylene wax or their mixture.
6. biodegradable environment protecting paper according to claim 1, is characterized in that: described coupling agent is silane coupling agent and/or titanate coupling agent.
7. biodegradable environment protecting paper according to claim 6, is characterized in that: described silane coupling agent is selected from one or more in KH550, KH560 and KH570.
8. one kind according to the preparation method of the biodegradable environment protecting paper described in claim 1～7 any one, it is characterized in that: by the starch of 20～40wt%, the mineral filler powder of 50～70wt%, the tackiness agent of 1～4wt%, the softening agent of 1～4wt%, it is even that the lubricant of 0.5～1wt% and the coupling agent of 0.5～1wt% join stirrer for mixing, then through screw extrusion press extruding pelletization, by the pellet after granulation at film blowing device, on rolling equipment or casting apparatus, be prepared into film, by the film process coating machine being prepared into, on the surface of film, be coated with one deck coating fluid, dry, pressing prepares described biodegradable environment protecting paper,
Mineral filler powder in described film is selected from one or more in Paris white, magnesium hydroxide powder, titanium dioxide and silicate mine stone flour;
Described softening agent is selected from one or more in sorbyl alcohol, glycerol and dioctyl phthalate (DOP);
The composition of described coating fluid and component concentration are:
Polyacrylate dispersion, polyaminoester emulsion or their mixture 30～75wt%
Mineral filler powder 20～40wt%
Water surplus
Solid content in described polyaminoester emulsion, polyacrylate dispersion or their mixture is between 40～50%; Mineral filler powder in described coating fluid is selected from one or more in light calcium carbonate, talcum powder and titanium dioxide.
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| CN201210128453.3A CN102898670B (en) | 2012-04-27 | 2012-04-27 | Biodegradable environmentally-friendly paper and preparation method thereof |
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| CN201210128453.3A CN102898670B (en) | 2012-04-27 | 2012-04-27 | Biodegradable environmentally-friendly paper and preparation method thereof |
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| CN102898670B true CN102898670B (en) | 2014-10-15 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103289129A (en) * | 2013-06-24 | 2013-09-11 | 地球卫士（天津）环保新材料有限公司 | Biomass-based green film and a preparation method thereof |
| CN103320041B (en) * | 2013-07-09 | 2015-03-11 | 天象集团有限责任公司 | Environmentally-friendly adhesive tape for gypsum boards |
| CN103980677B (en) * | 2014-05-16 | 2016-01-13 | 华中科技大学 | A kind of preparation method of biodegradable stone paper |
| CN105219004B (en) * | 2015-11-05 | 2017-12-29 | 广州景盛纸制品有限公司 | A kind of degradable plant fibre paper and preparation method thereof |
| CN106988153A (en) * | 2017-04-25 | 2017-07-28 | 杨殿宽 | Environmentally friendly synthetic paper Special coating liquid and coating process and equipment |
| CN110408226B (en) * | 2019-06-21 | 2021-07-16 | 浙江旭东包装有限公司 | Preparation method of high-strength heat-resistant food packaging film |
| CN111016230A (en) * | 2019-12-12 | 2020-04-17 | 成都新柯力化工科技有限公司 | Method for preparing bio-plastic film by post-inflation stretch blow molding |
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| CN1368517A (en) * | 2001-02-08 | 2002-09-11 | 北京中宣绿环科技发展有限公司 | Process for preparing fully degradated starch-base packing material and its product |
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