CN102849985A - Environment-friendly stone paper and preparation method thereof - Google Patents
Environment-friendly stone paper and preparation method thereof Download PDFInfo
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- CN102849985A CN102849985A CN2012103493232A CN201210349323A CN102849985A CN 102849985 A CN102849985 A CN 102849985A CN 2012103493232 A CN2012103493232 A CN 2012103493232A CN 201210349323 A CN201210349323 A CN 201210349323A CN 102849985 A CN102849985 A CN 102849985A
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Abstract
The invention discloses environment-friendly stone paper. The stone paper is made of following raw materials, by weight, 85-90 parts of inorganic mineral powder, 3-5 parts of surface active ingredients, 4-6 pats of polymer monomers, 0.01-0.05 part of initiator, 8-10 parts of synthetic resin, 0.5-0.7 part of antistatic agent, 0.3-0.5 part of softener and foamer. The invention further provides a preparation method for the environment-friendly stone paper. The method includes that polymeric interface chemical principles and high polymer material functional characteristics are adopted, the surface active ingredients and the polymer monomers are used to subject the inorganic mineral powder to chemical coating and mechanical force chemical modification, the synthetic resin plays a role in assisting, inert gases are taken as the foamer, and thermoplastic processing equipment is utilized for rolling, stretching and forming. The stone paper is obvious in longitudinal and horizontal orientation, good in stiffness, strong in rigidity, bending resistant, and closer to conventional paper in appearance and texture. The environment-friendly stone paper is high in inorganic powder content, and inert ultramicro bubbles are taken as filling materials in the stone paper, so that density of the stone paper is lowered, and flexibility is more excellent.
Description
Technical field
The present invention relates to a kind of environmentally-friendly stone paper of making take the inorganic mineral powder material as main raw material and preparation method thereof.
Background technology
Paper is one of four invents by China.Tradition papermaking all is to adopt the vegetable fibres such as timber, stalk to make raw material, is equipped with the industrial chemicals processing and manufacturings such as acid, alkali, additive and becomes paper, consumes a large amount of natural resourcess, causes serious environmental pollution.Conventional paper is humidity, corrosion not, and its dimensional stability and every physical and mechanical properties are poor, can not satisfy the needs of social development.In order to protect national resource and environment for human survival, the scientific research personnel attempts various technology, changes the various drawbacks of bringing because of paper-making industry.
The fifties in last century, along with the invention of macromolecular material is used, beginning to have occurred by macromolecule resin, calcium carbonate and multiple auxiliary chemicals is raw material, blowing, casting method during the employing plastics is standby are produced synthetic paper, be called as " stone paper " because containing a large amount of inorganic powder compositions, being characterized in that every physical and mechanical properties is better than conventional paper, having satisfied the requirement of some special dimensions, is the once reform of paper industry.Because traditional synthetic paper is that inorganic powder material is lower than 40% take synthetic resins as main, cost is high, depends on again petroleum industry, its application and development is restricted and affects.Breakthrough and fast development along with science and technology, the novel high polymer functional materials, processing aid, the development of also constantly bringing forth new ideas such as processor, make that the content of inorganic powder material improves greatly in the stone paper, production cost significantly reduces, progressively formed the stone paper take inorganic powder material as main component, developed out fast the s-generation, third generation stone paper, these novel stone paper are slim such as film, thick type such as plate, has waterproof, antifog, grease proofing, insect protected, anti-folding, the excellent properties such as high strength, can be widely used in Cultural Paper, wrapping paper, many fields such as decorative paper substitute conventional paper.Because the main raw material of production stone paper is inorganic powder material and a small amount of synthetic resins, add and adopt blowing or calendering man-hour, only use a small amount of machine operation water coolant, thereby do not consume the vegetable fibres such as a large amount of timber, stalk in the manufacturing processed, not waste discharge, waste gas, need not add strong acid, highly basic, SYNTHETIC OPTICAL WHITNER etc., can be to environment, production cost also is significantly less than traditional papermaking.Therefore, it is a kind of environmental protection and energy saving paper, meets direction and the requirement of modern social development, has great development potentiality and the market requirement.
China Patent Publication No. CN1378909A has proposed a kind of environment protecting paper, and the inorganic mineral powder with 56～80% and 43～18% polyvinyl resin and auxiliary agent are by extruder grain, and at O pattern interruption-forming cylinder film, blowing makes two-way stretch obtain environment protecting paper.This patent utilization coupling agent and dispersion agent have only been done simple surface treatment to inorganic mineral powder, and mineral powder content can't further improve, and processing units and technique have been carried out strict restriction and requirement, and the suitability for industrialized production difficulty is large.
Existing stone paper production technology exists the inorganic powder material modification not good, causes the content of inorganic powder material in stone paper low, can not reach inorganic powder material and account for the requirement more than 80% in the stone paper.Because the density of inorganic powder material is high, processing aid also mostly is solid powdery, so that the proportion of stone paper is higher than conventional paper, has reduced cost performance, has affected total quality and the use of stone paper.In addition the inorganic powders such as calcium carbonate are processed into thin paper and open, generally select granularity at micron-sized powder.Because the surface energy of micron-sized powder particle is high, is in the thermodynamic instability state, very easily produce and reunite, the hydrophilic oleophobic of particle surface, polarity is very high, is difficult to disperse in organic medium, and is poor with the bonding force of synthetic resins base-material, forms easily boundary defect.Existing powder-modified technology is coupling technology, just powder is carried out simple surface treatment, powder is that the form of filling exists, so just need to rely on a large amount of synthetic resins as propping material, cause production cost higher, processing characteristics is relatively poor, can not carry out rapidly and uniformly in length and breadth to stretch orientation, Substance is high, lacks the paper sense.
Summary of the invention
The object of the present invention is to provide that a kind of density is low, mechanical mechanics property good, the environmentally-friendly stone paper of low cost of manufacture.Another object of the present invention is to disclose the preparation method of this kind environmentally-friendly stone paper.
The present invention is achieved in that a kind of environmentally-friendly stone paper, it is characterized in that: the following starting material by parts by weight are made: 85～90 parts of inorganic mineral powders, 3～5 parts of surface active ingredients, 4～6 parts of polymer monomers, 0.01～0.05 part of initiator, 8～10 parts of synthetic resins, 0.5～0.7 part in static inhibitor, 0.3～0.5 part of softening agent and whipping agent; The amount of described whipping agent is 4 ‰ of all the other starting material gross weights-8 ‰;
Wherein, described inorganic mineral powder is one or more the mixture in water-ground limestone, kaolin, diatomite, talcum powder, light calcium carbonate, the wilkinite, and the median size of described inorganic mineral powder is 1250-2500 order, moisture content less than 0.3%, heavy metal content is less than 0.03%;
Described surface active ingredient is at least a in the anion surfactant of inorganic acid ester;
Described polymer monomer is one or more the mixture in methyl acrylate, butyl acrylate, Isooctyl acrylate monomer, vinyl acetate, the vinylbenzene;
Described initiator is azo-bis-iso-dimethyl or tert butyl peroxy benzoate;
Described synthetic resins is one or more the mixture in polyethylene, polypropylene, ethylene-vinyl acetate copolymer, the ethylene-acrylic acid copolymer etc.;
Said whipping agent is one or both mixing of carbonic acid gas, nitrogen.
Adopt technique scheme, all contain the hydrophilic/lipophilic group in the surface active ingredient structure, hydrophilic radical in the tensio-active agent, can with the free proton generation chemical reaction on inorganic powder material surface, reduce hygroscopicity value and the oil absorbency of inorganic powder material, also just reduced the surface energy of inorganic mineral powder material, avoid occuring particle agglomeration, it is active to increase inorganic mineral powder, and the combination and the following process that are conducive to inorganic mineral powder powder body material and resin are processed.Synthetic resins does not occur to decompose and volatilization in withstand high temperatures and machinery rub the sassafras process.Add static inhibitor, inorganic and the organic antistatic agents of inorganic mineral powder material surface and the uncompatibility of high molecular polymer, make electric charge to the stone paper surface transport, reduced the resistance of paper surface, suppressed stone paper produces static in production process and use procedure condition; The adding of softening agent has increased anti-folding and the tensile strength of stone paper; Whipping agent adopts gas foaming agent and does not use chemical substance as whipping agent, on the one hand low, the effect that embodied environmental protection of cost, avoid in stone paper, adding unnecessary chemical ingredients, rare gas element produces the microbubble of 2～4 microns of diameters in the screw extrusion press barrel on the other hand, in stone paper, plant oneself, formed filler, reduced the proportion of stone paper, made the snappiness of its stone paper more superior.The present invention adopts the macromolecule interfacial principles of chemistry and the functional characteristics of macromolecular material, with surface active ingredient and polymer monomer inorganic mineral powder being carried out chemistry coats and mechanical-chemical modification, be aided with synthetic resins, make whipping agent with rare gas element, paper in length and breadth to orientation obviously, deflection is good, rigidity is strong, anti-folding, and appearance tactile impression is closer to conventional paper.Inorganic powder content is high in this environmentally-friendly stone paper, and the inertia ultramicro air bubble becomes the packing material in the stone paper, has reduced the density of stone paper, and snappiness is more superior.The electrodeless mineral powder of a large amount of employings of the present invention only uses a small amount of synthetic resins, low cost of manufacture.
As of the present invention preferred: described inorganic mineral powder is water-ground limestone.
As of the present invention preferred: described surface active ingredient is phosphoric acid ester or titanic acid ester or their mixture.
As of the present invention preferred: described static inhibitor is the ethoxylated fat family alkylamine of non-ionic type, one or more the mixture in the oxyethyl group lauric acid amine.
As of the present invention preferred: described softening agent is dihydroxyphenyl propane.
As of the present invention preferred: in order to guarantee fully mixing of synthetic resins and inorganic powder material, improve the dispersiveness of each component in the material, reduce sticking of material interface, in order to follow-up machine-shaping, synthetic resins must be processed and shatter powdering, and described synthetic resins is Powdered.
Another object of the present invention is achieved in that a kind of method for preparing environmentally-friendly stone paper: carry out in the steps below:
(1) described inorganic mineral powder is heated to 100～130 ℃, control inorganic mineral powder moisture is lower than 0.3%, add again after surface active ingredient fully mixes, then adding described polymer monomer fully mixes, adding described synthetic resins fully mixes again, adding at last described static inhibitor and softening agent fully mixes to mixture and is a bulk, the mixture that obtains mixing;
(2) mixture with step (1) gained is cooled to 50～60 ℃, sends in the Banbury mixer, adds initiator, carries out mixingly under 60～200 ℃ of conditions, makes polymer monomer and initiator carry out polyreaction;
(3) mixture with step (2) gained is extruded into strip under 190～220 ℃, carries out air-cooled tie rod again and is cut into particle, obtains the stone paper masterbatch pellet;
(4) with the stone paper masterbatch pellet of step (3) gained, add in the barrel of screw extrusion press, pass into whipping agent, carry out low-temp foaming or hocket with low-temp foaming in the foaming of 200～300 ℃ of high temperature or high temperature foaming at 140～165 ℃, make stone paper masterbatch pellet and gas foaming agent mix post-foaming;
(5) material that step (4) is foamed is delivered to rolling press equipment, directly is processed into the sheet environmentally-friendly stone paper.
The employing macromolecule interfacial principles of chemistry of the present invention and the functional characteristics of macromolecular material, with surface active ingredient and polymer monomer inorganic mineral powder being carried out chemistry coats and mechanical-chemical modification, be aided with synthetic resins, make whipping agent with rare gas element, use the thermoplastic processing units to roll drawing and forming, to orientation obviously, deflection is good, rigidity is strong, anti-folding in length and breadth for paper, and appearance tactile impression is closer to conventional paper.Rare gas element produces the microbubble of 2～4 microns of diameters in the screw extrusion press barrel, plant oneself in stone paper, has formed filler, has reduced the proportion of stone paper, makes the snappiness of its stone paper more superior.The preparation method is simple, low cost of manufacture.
As of the present invention preferred: the concrete operation step of described step (1) is: the standby inorganic mineral powder of institute is heated with stirring to 100～130 ℃, constant temperature 10 minutes, make inorganic mineral powder material moisture be lower than 0.3%, add tensio-active agent, stirred 5 minutes, add polymer monomer, continuing to stir made polymer monomer evenly be coated in the inorganic mineral powder surface in 10 minutes, then add synthetic resins, restir made and mixes in 5 minutes, add at last static inhibitor, softening agent, be stirred to and be a bulk, obtain mixture.
As of the present invention preferred: in the step (2), add initiator after, first 60～80 ℃ lower mixing 10 minutes, again 100～150 ℃ mixing 5 minutes, mixing 5 minutes at 160～200 ℃ at last.
Beneficial effect: the present invention adopts the macromolecule interfacial principles of chemistry and the functional characteristics of macromolecular material, with surface active ingredient and polymer monomer inorganic mineral powder being carried out chemistry coats and mechanical-chemical modification, be aided with synthetic resins, make whipping agent with rare gas element, use the thermoplastic processing units to roll drawing and forming, to orientation obviously, deflection is good, rigidity is strong, anti-folding in length and breadth for paper, and appearance tactile impression is closer to conventional paper.Inorganic powder content is high in this environmentally-friendly stone paper, and the inertia ultramicro air bubble becomes the packing material in the stone paper, has reduced the density of stone paper, and snappiness is more superior.It is a kind of novel environment friendly stone paper.
Embodiment
The present invention is described further below in conjunction with specific embodiment
Embodiment 1
(1) for subsequent use by each component of following quality weighing:
And the synthetic resins polypropylene shattered powdering;
(2) the standby water-ground limestone (heavy metal content is below 0.03%) of step (1) institute is heated with stirring to 125 ℃, constant temperature 10 minutes, make water-ground limestone moisture be lower than 0.3%, continue to stir adding surface active ingredient phosphoric acid ester and titanic acid ester, add methyl acrylate after 5 minutes, continuing to stir made monomer evenly be coated in microparticle surfaces in 10 minutes, then add the synthetic resins polypropylene, stirred 5 minutes, add at last static inhibitor oxyethyl group aliphatic alkylamine, softening agent dihydroxyphenyl propane, stir and be a bulk to mixture in 3 minutes, obtain mixture;
(3) with the mixture of step (2) gained, be cooled to 50 ℃, deliver in the Banbury mixer, add the initiator azo-bis-iso-dimethyl, under 60～80 ℃, carried out mixing 10 minutes, 100～150 ℃ mixing 5 minutes, 160～200 ℃ are mixing 5 minutes;
(4) mixture with step (3) gained is extruded into strip under 190 ℃, carries out air-cooled tie rod again and is cut into particle, obtains the stone paper masterbatch pellet;
(5) with the stone paper masterbatch pellet of step (4) gained, add in the screw extrusion press barrel, pass into simultaneously 4 ‰ carbon dioxide of stone paper masterbatch pellet weight.Carbon dioxide generation diameter is 2～4 microns ultramicro air bubble in the barrel of screw extrusion press, and fully mixes then foaming with the stone paper masterbatch pellet.In screw extrusion press, hocket high temperature and low-temp foaming, the high temperature blowing temperature is 300 ℃, and the low-temp foaming temperature is 165 ℃, and high low-temp foaming hockets until foam fully, and the rotating speed of screw extrusion press is 70 rev/mins.The material that will foam is at last completely delivered to the rolling press calendering, is processed into the sheet environmentally-friendly stone paper.When making master batch, enter again Banbury mixer through the rectangular and powdery unacceptable product after the screening and carry out secondary banburying (not needing to add initiator), from new granulation, recovery.
Embodiment 2
(1) for subsequent use by each component of following quality weighing:
Shatter the synthetic resins polypropylene powdered;
(2) the standby water-ground limestone (heavy metal content is below 0.03%) of step (1) institute is heated with stirring to 125 ℃, constant temperature 10 minutes, make water-ground limestone moisture be lower than 0.3%, continue to stir adding surface active ingredient phosphoric acid ester and titanic acid ester, stir and add methyl acrylate after 5 minutes, the continuation stirring made polymer monomer evenly be coated in the water-ground limestone surface in 10 minutes after adding methyl acrylate, then add the synthetic resins polypropylene, stir after 5 minutes, add at last static inhibitor oxyethyl group aliphatic alkylamine, the softening agent dihydroxyphenyl propane, stir and be a bulk to mixture in 3 minutes, obtain mixture;
(3) with the mixture of step (2) gained, be cooled to 50 ℃, deliver in the Banbury mixer, add the initiator azo-bis-iso-dimethyl, under 70～80 ℃, carried out mixing 10 minutes, 1 ((～160 ℃ mixing 5 minutes, 180～200 ℃ are mixing 5 minutes;
(4) mixture with step (3) gained is extruded into strip under 190 ℃, carries out air-cooled tie rod again and is cut into particle;
(5) with the stone paper masterbatch pellet of step (4) gained, add in the screw extrusion press barrel, pass into simultaneously 4 ‰ nitrogen gas of stone paper masterbatch pellet weight.Nitrogen gas generation diameter is 2～4 microns ultramicro air bubble in the barrel of screw extrusion press, and fully mixes then foaming with the stone paper masterbatch pellet.In screw extrusion press, hocket high temperature and low-temp foaming, the high temperature blowing temperature is 200 ℃, and the low-temp foaming temperature is 140 ℃, and high low-temp foaming hockets until foam fully, and the rotating speed of screw extrusion press is 80 rev/mins.The material that will foam is at last completely delivered to the rolling press calendering, is processed into the sheet environmentally-friendly stone paper.When making master batch, enter again Banbury mixer through the rectangular and powdery unacceptable product after the screening and carry out secondary banburying (not needing to add initiator), from new granulation, recovery.
Embodiment 3
(1) for subsequent use by each component of following quality weighing:
And synthetic resins shattered powdering;
(2) the standby water-ground limestone (heavy metal content is below 0.03%) of step (1) institute is heated with stirring to 120 ℃, constant temperature 10 minutes, make inorganic mineral powder material moisture be lower than 0.3%, add the tensio-active agent in the step (1), continue to stir after 5 minutes and add vinyl acetate, continue again to stir to make monomer evenly be coated in microparticle surfaces in 10 minutes, then add synthetic resins, stir and add again static inhibitor, softening agent after 5 minutes, stir and be a bulk to mixture in 3 minutes, obtain mixture;
(3) with the mixture of step (2) gained, be cooled to 60 ℃, deliver in the Banbury mixer, add the initiator azo-bis-iso-dimethyl, under 60～80 ℃, carried out mixing 8 minutes, 100～150 ℃ mixing 5 minutes, 170～200 ℃ are mixing 5 minutes;
(4) mixture with step (3) gained is extruded into strip under 200 ℃, carries out air-cooled tie rod again and is cut into particle;
(5) with the stone paper particle of step (4) gained, add in the screw extrusion press barrel, pass into simultaneously 6 ‰ carbon dioxides of stone paper masterbatch pellet weight.Carbon dioxide generation diameter is 2～4 microns ultramicro air bubble in the barrel of screw extrusion press, and fully mixes then foaming with the stone paper masterbatch pellet.In screw extrusion press, hocket high temperature and low-temp foaming, the high temperature blowing temperature is 290 ℃, and the low-temp foaming temperature is 165 ℃, and the rotating speed of screw extrusion press is 85 rev/mins.High low-temp foaming hockets until foam fully.The material that will foam is at last completely delivered to the rolling press calendering, is processed into the sheet environmentally-friendly stone paper.When making master batch, enter again Banbury mixer through the rectangular and powdery unacceptable product after the screening and carry out secondary banburying (not needing to add initiator), from new granulation, recovery.
Embodiment 4
(1) for subsequent use by each component of following quality weighing:
And synthetic resins shattered powdering;
(2) the standby inorganic mineral powder (heavy metal content is below 0.03%) of step (1) institute is heated with stirring to 100 ℃, constant temperature 10 minutes, make inorganic mineral powder material moisture be lower than 0.3%, add the tensio-active agent in the step (1), continue to stir after 5 minutes and add vinylbenzene, restir made monomer evenly be coated in microparticle surfaces in 10 minutes, then add synthetic resins, continue to stir after 5 minutes and add again static inhibitor, softening agent, stir and be a bulk to mixture in 3 minutes, obtain mixture;
(3) with the mixture of step (2) gained, be cooled to 50 ℃, deliver in the Banbury mixer, add the initiator tert butyl peroxy benzoate, under 60～80 ℃, carried out mixing 10 minutes, 100～150 ℃ mixing 5 minutes, 160～200 ℃ are mixing 5 minutes;
(4) mixture with step (3) gained is extruded into strip under 200 ℃, carries out air-cooled tie rod again and is cut into particle;
(5) with the stone paper particle of step (4) gained, add in the screw machine barrel, pass into simultaneously 4 ‰ carbon dioxides of stone paper masterbatch pellet weight and 4 ‰ nitrogen of stone paper masterbatch pellet weight.Carbon dioxide and nitrogen gas generation diameter are 2～4 microns ultramicro air bubble in the barrel of screw extrusion press, and and stone
The paper masterbatch pellet fully mixes, then foaming.Carry out low-temp foaming in screw extrusion press, the low-temp foaming temperature is 165 ℃, and the rotating speed of screw extrusion press is 90 rev/mins.Low-temp foaming carries out until foam fully.The material that will foam is at last completely delivered to the rolling press calendering, is processed into the sheet environmentally-friendly stone paper.When making master batch, enter again Banbury mixer through the rectangular and powdery unacceptable product after the screening and carry out secondary banburying (not needing to add initiator), from new granulation, recovery.
Embodiment 5
(1) for subsequent use by each component of following quality weighing:
And synthetic resins shattered powdering;
(2) the standby talcum powder (heavy metal content is below 0.03%) of step (1) institute is heated with stirring to 130 ℃, constant temperature 10 minutes, make inorganic mineral powder material moisture be lower than 0.3%, add the tensio-active agent in the step (1), continue to stir and add Isooctyl acrylate monomer and vinylbenzene after 5 minutes, restir made monomer evenly be coated in microparticle surfaces in 10 minutes, then add synthetic resins, continue to stir 5 minutes, add at last static inhibitor, softening agent, stir 3 minutes to silk during bulk, obtain mixture;
(3) with the mixture of step (2) gained, be cooled to 60 ℃, send in the Banbury mixer, add the initiator tert butyl peroxy benzoate, under 60～80 ℃, carried out mixing 10 minutes, 100～150 ℃ mixing 5 minutes, 180～200 ℃ are mixing 5 minutes;
(4) mixture with step (3) gained is extruded into strip under 210 ℃, carries out air-cooled tie rod again and is cut into particle;
(5) with the stone paper particle of step (4) gained, add in the screw machine barrel, pass into simultaneously 4 ‰ nitrogen of 3 ‰ carbon dioxide of stone paper masterbatch pellet weight and stone paper masterbatch pellet weight.Carbon dioxide and nitrogen gas generation diameter are 2～4 microns ultramicro air bubble in the barrel of screw extrusion press, and fully mix with the stone paper masterbatch pellet, then foaming.Carry out low-temp foaming in screw extrusion press, the low-temp foaming temperature is 160 ℃, and the rotating speed of screw extrusion press is 90 rev/mins.Low-temp foaming carries out until foam fully.The material that will foam is at last completely delivered to the rolling press calendering, make stone paper produce in product.When making master batch, enter again Banbury mixer through the rectangular and powdery unacceptable product after the screening and carry out secondary banburying (not needing to add initiator), from new granulation, recovery.
Embodiment 6
(1) for subsequent use by each component of following quality weighing:
And synthetic resins shattered;
(2) the standby inorganic mineral powder (heavy metal content is below 0.03%) of step (1) institute is heated with stirring to 130 ℃, constant temperature 10 minutes, make inorganic mineral powder material moisture be lower than 0.3%, add the tensio-active agent in the step (1), continue to stir after 5 minutes and add methyl acrylate, restir made monomer evenly be coated in microparticle surfaces in 10 minutes, then add synthetic resins, stirred 5 minutes, add at last static inhibitor, softening agent, stir and be a bulk to mixture in 3 minutes, obtain mixture;
(3) with the mixture of step (2) gained, be cooled to 50 ℃, send in the Banbury mixer, add the initiator tert butyl peroxy benzoate, under 60～80 ℃, carried out mixing 10 minutes, 100～150 ℃ mixing 5 minutes, 160～200 ℃ are mixing 5 minutes;
(4) mixture with step (3) gained is extruded into strip under 220 ℃, carries out air-cooled tie rod again and is cut into particle;
(5) with the stone paper particle of step (4) gained, add in the screw machine barrel, pass into simultaneously 3 ‰ nitrogen of 3 ‰ carbon dioxide of stone paper masterbatch pellet weight and stone paper masterbatch pellet weight.Carbon dioxide and nitrogen gas generation diameter are 2～4 microns ultramicro air bubble in the barrel of screw extrusion press, and fully mix with the stone paper masterbatch pellet, then foaming.Carry out the high temperature foaming in screw extrusion press, the high temperature blowing temperature is 250 ℃, and the rotating speed of screw extrusion press is 90 rev/mins, carries out the high temperature foaming until foaming is complete.The material that will foam is at last completely delivered to the rolling press calendering, make stone paper produce in product.When making master batch, enter again Banbury mixer through the rectangular and powdery unacceptable product after the screening and carry out secondary banburying (not needing to add initiator), from new granulation, recovery.
Above-described embodiment only is preferred implementation of the present invention; can not limit protection scope of the present invention with this; do not breaking away under the technology of the present invention state of mind; various replacements or the change of any unsubstantiality that those skilled in the art does on basis of the present invention all belong to protection scope of the present invention.
Claims (9)
1. environmentally-friendly stone paper, it is characterized in that: the following starting material by parts by weight are made:
85～90 parts of inorganic mineral powders, 3～5 parts of surface active ingredients, 4～6 parts of polymer monomers, 0.01～0.05 part of initiator, 8～10 parts of synthetic resins, 0.5～0.7 part in static inhibitor, 0.3～0.5 part of softening agent and whipping agent; The amount of described whipping agent is 4 ‰ of all the other starting material gross weights-8 ‰;
Wherein, described inorganic mineral powder is one or more the mixture in water-ground limestone, kaolin, diatomite, talcum powder, light calcium carbonate, the wilkinite, and the median size of described inorganic mineral powder is 1250-2500 order, moisture content less than 0.3%, heavy metal content is less than 0.03%;
Described surface active ingredient is at least a in the anion surfactant of inorganic acid ester;
Described polymer monomer is one or more the mixture in methyl acrylate, butyl acrylate, Isooctyl acrylate monomer, vinyl acetate, the vinylbenzene;
Described initiator is azo-bis-iso-dimethyl or tert butyl peroxy benzoate;
Described synthetic resins is one or more the mixture in polyethylene, polypropylene, ethylene-vinyl acetate copolymer, the ethylene-acrylic acid copolymer etc.;
Said whipping agent is one or both mixing of carbonic acid gas, nitrogen.
2. described environmentally-friendly stone paper according to claim 1, it is characterized in that: described inorganic mineral powder is water-ground limestone.
3. described environmentally-friendly stone paper according to claim 1, it is characterized in that: described surface active ingredient is phosphoric acid ester or titanic acid ester or their mixture.
4. described environmentally-friendly stone paper according to claim 1 is characterized in that: described static inhibitor is the ethoxylated fat family alkylamine of non-ionic type, one or more the mixture in the oxyethyl group lauric acid amine.
5. described environmentally-friendly stone paper according to claim 1, it is characterized in that: described softening agent is dihydroxyphenyl propane.
6. described environmentally-friendly stone paper according to claim 1, it is characterized in that: described synthetic resins is Powdered.
7. method for preparing each described environmentally-friendly stone paper of claim 1-6: it is characterized in that: carry out in the steps below:
(1) described inorganic mineral powder is heated to 100～130 ℃, control inorganic mineral powder moisture is lower than 0.3%, adding surface active ingredient fully mixes again, then adding described polymer monomer fully mixes, adding described synthetic resins fully mixes again, add at last described static inhibitor and softening agent and fully mix to a bulk, the mixture that obtains mixing;
(2) mixture with step (1) gained is cooled to 50～60 ℃, sends in the Banbury mixer, adds initiator, carries out mixingly under 60～200 ℃ of conditions, makes polymer monomer and initiator carry out polyreaction;
(3) mixture with step (2) gained is extruded into strip under 190～220 ℃, carries out air-cooled tie rod again and is cut into particle, obtains the stone paper masterbatch pellet;
(4) with the stone paper masterbatch pellet of step (3) gained, add in the barrel of screw extrusion press, pass into whipping agent, carry out low-temp foaming or hocket with low-temp foaming in the foaming of 200～300 ℃ of high temperature or high temperature foaming at 140～165 ℃, make stone paper masterbatch pellet and gas foaming agent mix post-foaming;
(5) material that step (4) is foamed is delivered to the rolling press calendering, directly is processed into the sheet environmentally-friendly stone paper.
8. the preparation method of described environmentally-friendly stone paper according to claim 7, it is characterized in that: the concrete operation step of described step (1) is: the standby inorganic mineral powder of institute is heated with stirring to 100～130 ℃, constant temperature 10 minutes, make inorganic mineral powder material moisture be lower than 0.3%, add tensio-active agent, stirred 5 minutes, then add polymer monomer, continuing to stir made polymer monomer evenly be coated in the inorganic mineral powder surface in 10 minutes, then add synthetic resins, restir made and mixes in 5 minutes, added at last static inhibitor, softening agent, be stirred to and be a bulk, obtain mixture.
9. the preparation method of described environmentally-friendly stone paper according to claim 7 is characterized in that: in the step (2), add initiator after, first 60～80 ℃ lower mixing 10 minutes, again 100～150 ℃ mixing 5 minutes, mixing 5 minutes at 160～200 ℃ at last.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103287036A (en) * | 2013-06-06 | 2013-09-11 | 昆明钢铁控股有限公司 | Heat-sealing stone paper |
| CN103881214A (en) * | 2014-03-31 | 2014-06-25 | 宋旭 | High-filling bentonite foaming stone paper and preparation method thereof |
| WO2020043121A1 (en) * | 2018-08-30 | 2020-03-05 | 杨仲辉 | Artificial composite synthetic paper for improving printing performance, and preparation method therefor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1651649A (en) * | 2004-02-02 | 2005-08-10 | 王锡臣 | Preparation method of environmental protection synthetic paper |
| CN101871182A (en) * | 2010-06-18 | 2010-10-27 | 成都新柯力化工科技有限公司 | Thermoplasticity environmentally-friendly stone paper and preparation method |
| CN102060564A (en) * | 2010-11-16 | 2011-05-18 | 成都新柯力化工科技有限公司 | Light-weight environmental-friendly stone paper and preparation method thereof |
| CN102363569A (en) * | 2011-06-30 | 2012-02-29 | 上海东升新材料有限公司 | Functional calcium carbonate for stone paper |
-
2012
- 2012-09-19 CN CN2012103493232A patent/CN102849985A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1651649A (en) * | 2004-02-02 | 2005-08-10 | 王锡臣 | Preparation method of environmental protection synthetic paper |
| CN101871182A (en) * | 2010-06-18 | 2010-10-27 | 成都新柯力化工科技有限公司 | Thermoplasticity environmentally-friendly stone paper and preparation method |
| CN102060564A (en) * | 2010-11-16 | 2011-05-18 | 成都新柯力化工科技有限公司 | Light-weight environmental-friendly stone paper and preparation method thereof |
| CN102363569A (en) * | 2011-06-30 | 2012-02-29 | 上海东升新材料有限公司 | Functional calcium carbonate for stone paper |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103287036A (en) * | 2013-06-06 | 2013-09-11 | 昆明钢铁控股有限公司 | Heat-sealing stone paper |
| CN103287036B (en) * | 2013-06-06 | 2015-07-01 | 昆明钢铁控股有限公司 | Heat-sealing stone paper |
| CN103881214A (en) * | 2014-03-31 | 2014-06-25 | 宋旭 | High-filling bentonite foaming stone paper and preparation method thereof |
| WO2020043121A1 (en) * | 2018-08-30 | 2020-03-05 | 杨仲辉 | Artificial composite synthetic paper for improving printing performance, and preparation method therefor |
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