CN102910859A - Preparation method for low-density stone paper - Google Patents
Preparation method for low-density stone paper Download PDFInfo
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- CN102910859A CN102910859A CN2012103680614A CN201210368061A CN102910859A CN 102910859 A CN102910859 A CN 102910859A CN 2012103680614 A CN2012103680614 A CN 2012103680614A CN 201210368061 A CN201210368061 A CN 201210368061A CN 102910859 A CN102910859 A CN 102910859A
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- stone paper
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- calcium carbonate
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- 239000004575 stone Substances 0.000 title claims abstract description 61
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 79
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 39
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000004571 lime Substances 0.000 claims abstract description 23
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 18
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 18
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 16
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 9
- 230000036571 hydration Effects 0.000 claims abstract description 7
- 238000006703 hydration reaction Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 6
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 6
- 230000003179 granulation Effects 0.000 claims abstract description 6
- 238000005469 granulation Methods 0.000 claims abstract description 6
- 238000001132 ultrasonic dispersion Methods 0.000 claims abstract description 6
- 229920000642 polymer Polymers 0.000 claims abstract description 5
- 239000002002 slurry Substances 0.000 claims description 15
- -1 ester sodium salt Chemical class 0.000 claims description 14
- 239000011148 porous material Substances 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 11
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 10
- 239000011575 calcium Substances 0.000 claims description 10
- 239000000920 calcium hydroxide Substances 0.000 claims description 10
- 235000011116 calcium hydroxide Nutrition 0.000 claims description 10
- KBPLFHHGFOOTCA-UHFFFAOYSA-N caprylic alcohol Natural products CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- 230000002087 whitening effect Effects 0.000 claims description 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 6
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 6
- 239000012752 auxiliary agent Substances 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 6
- 230000001050 lubricating effect Effects 0.000 claims description 6
- 210000004798 organs belonging to the digestive system Anatomy 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 4
- 238000000071 blow moulding Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 239000005083 Zinc sulfide Substances 0.000 claims description 3
- WDIHJSXYQDMJHN-UHFFFAOYSA-L barium chloride Chemical compound [Cl-].[Cl-].[Ba+2] WDIHJSXYQDMJHN-UHFFFAOYSA-L 0.000 claims description 3
- 229940045511 barium chloride Drugs 0.000 claims description 3
- 229910001626 barium chloride Inorganic materials 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 3
- 229940104261 taurate Drugs 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 claims description 3
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 claims description 3
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims description 2
- 238000005282 brightening Methods 0.000 claims description 2
- 238000006471 dimerization reaction Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 238000007670 refining Methods 0.000 claims description 2
- 239000011787 zinc oxide Substances 0.000 claims description 2
- 239000008267 milk Substances 0.000 abstract 3
- 210000004080 milk Anatomy 0.000 abstract 3
- 235000013336 milk Nutrition 0.000 abstract 3
- 239000004088 foaming agent Substances 0.000 abstract 1
- 230000001939 inductive effect Effects 0.000 abstract 1
- 230000002195 synergetic effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 7
- 229920001903 high density polyethylene Polymers 0.000 description 6
- 239000004700 high-density polyethylene Substances 0.000 description 6
- 239000004743 Polypropylene Substances 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 5
- 229920001155 polypropylene Polymers 0.000 description 5
- 238000000465 moulding Methods 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- FYHXNYLLNIKZMR-UHFFFAOYSA-N calcium;carbonic acid Chemical compound [Ca].OC(O)=O FYHXNYLLNIKZMR-UHFFFAOYSA-N 0.000 description 3
- 230000002950 deficient Effects 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 235000010755 mineral Nutrition 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229920001179 medium density polyethylene Polymers 0.000 description 1
- 239000004701 medium-density polyethylene Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
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- Paper (AREA)
Abstract
The invention relates to a preparation method for low-density stone paper, which comprises the following steps: CaO and water are subjected to hydration according to the proportion ratio of 1:5 in a slaker under 70 DEG C and are refined to lime milk through ultrasonic dispersion; stable nitrogen is sealed in a nano-scale bubble through a foaming agent in the lime milk; under the synergistic effect of a hollow inductive agent, the lime milk reacts to form low-density calcium carbonate after enough carbon dioxide is led in, wherein the core of the calcium carbonate is the nano-scale bubble, and the wall shell of the calcium carbonate is spherical; and the low-density spherical calcium carbonate and high-molecular polymer are blended for granulation and stretched to be formed, so as to obtain the low-density stone paper.
Description
Technical field
The present invention relates to a kind of environmentally-friendly stone paper, specifically is a kind of preparation method of low density environmental protection stone paper.
Background technology
Along with the rise of low-carbon economy, green economy, non-metallic minerals paper technology has obtained fast development.Non-metallic minerals paper (being commonly called as stone paper) technology has not only solved the problem of high energy consumption, high pollution, and has reduced to a great extent the dependence to process of plant fiber pulp.Stone paper has the dual nature of paper and plastics, because its excellent waterproof, protection against the tide, the performance such as tear-resistant have obtained a large amount of application at packaging field.2/3 of China's paper product are for packaging field, so stone paper will greatly promote the development of this technology in the application of packaging field.
Usually stone paper contains 70% even higher non-metallic minerals calcium carbonate, because the calcium carbonate excellent property is cheap, therefore uses calcium carbonate to make main starting material and effectively reduces paper cost, protected environment.Meanwhile the density of calcium carbonate is up to 2.7-2.9g/cm
3, so the defective that stone paper exists that density is large, feel is heavy.In order to reduce stone paper density, reach or near density and the sedimentation of traditional plant fibre paper, Domestic Scientific Research personnel do a lot of work in this respect.
China Patent Publication No. is that CN101831835A discloses a kind of stone papermaking method, and the method is injected the butane of 0.5% weight and the nucleator of 0.5% weight in forcing machine when the stone paper moulding, adopt the little foaming technique of physics, reduces stone paper density.This technology can reduce stone paper density in certain scope, but because a large amount of inorganic powder autologous densities is higher, so the density reduction is limited.Existing density by Techniques For Reducing stone paper such as stretching, solvent attack, little foaming can only reduce stone paper density within the specific limits at present.
China Patent Publication No. is that CN102584105A discloses a kind of Novel low-density synthetic paper and preparation technology thereof, and the method is done stone paper by the material that adopts the light specific gravities such as porous material such as zeolite, molecular sieve, fine perlite powder, expanded rosin rock dust, expanded black credit rock dust; China Patent Publication No. is that CN102154932A discloses the little stone paper of a kind of proportion, and this stone paper is that the hollow glass bead, flyash take light specific gravity prepares stone paper as raw material.It is that main raw material reduces stone paper density that above patented technology is selected porous material, although the inorganic powder density of selecting is lower, but such material adsorptivity is strong, oil-absorption(number) is high, the a large amount of lubricating auxiliary agent of porous material absorption in the process of processing stone paper, not only the lubricating auxiliary agent waste is large, and lubricating auxiliary agent has occupied the hole of porous material, cause stone paper density to reduce amplitude limited, can not fundamentally solve the excessive problem of density.In addition, above-mentioned porous material mostly is dark, and being used for stone papermaking has certain impact to the texture of paper color.
Therefore, in order fundamentally to reduce the density of stone paper, guarantee simultaneously that again stone paper is low-cost, the pure white characteristics of color, its the most key problem is to reduce the density that content in the stone paper surpasses 70% calcium carbonate, and to require calcium carbonate be to belong to hollow, closed pore, spherical state, has the characteristics of low density, low oil-absorption(number), high workability.
Summary of the invention
The present invention is directed to the excessive defective of present stone paper density, a kind of preparation method of low density stone paper is provided.The concrete preparation process that it is characterized in that the low density stone paper is as follows:
1) lime CaO and water are carried out hydration, the Ca(OH that obtains according to weight ratio 1:5 under 70 ℃ of conditions of digestive organ)
2Lime slurry, and be that the ultrasonic machine of 4000W disperseed 5-10 minute by ultrasonic power;
2) at the refining Ca(OH that disperses)
2Sneak into the pore forming material that consumption is lime slurry weight 0.02-0.05% in the milk of lime, stir simultaneously ultra-sonic dispersion and pass into the microvesicle that nitrogen makes milk of lime formation even level;
3) adding consumption is the hollow inductor of lime slurry weight 0.05-0.1%, stirs, and then passes into carbon dioxide air source, and the calcium carbonate building-up reactions occurs;
4) under the effect of hollow inductor, the calcium carbonate building-up reactions occurs and be deposited in the nano level microvesicle surface that is formed by nitrogen, obtain the low density spherical calcium carbonate by spraying drying;
5) with step 4) the low density spherical calcium carbonate 75-80 weight part that obtains is as the stone paper main raw material(s), 3-7 weight part whitening agent is as brightening auxiliary material, by 1-3 weight part lubricating auxiliary agent disperse swabbing, with 10-20 weight part high molecular polymer in single Screw Extrusion (or parallel dual-screw extruding machine or Banbury mixer) blend granulation, can obtain the low density stone paper at blow moulding machine drawing and forming (or pressing casting machine drawing and forming).
In the preparation method of above-mentioned low density stone paper; wherein said pore forming material is selected a kind of in dimerization butyl glycol ether, lauryl alcohol sulfuric ester sodium salt, ethoxylated dodecyl alcohol, oleoxy methyl taurate, n-Octanol, the secondary octanol; the surface property of the heteropolarity of pore forming material causes it to be adsorbed on gas-liquid interface; and the surface tension of reduction lime slurry slurry; be oriented adsorption at gas-liquid interface; form hydration shell; the bubble that forms is difficult for breaking; strengthen the elasticity of bubble, improved the stability of foam.
In the preparation method of above-mentioned low density stone paper, wherein said nitrogen is as the bubble kernel, because the stability of nitrogen is not only reacted with lime slurry as kernel.
In the preparation method of above-mentioned low density stone paper, wherein said hollow inductor is selected a kind of in calcium sulfate, barium sulfate, bariumchloride, the aluminum chloride, the hollow inductor can enter crystal structure of calcium carbonate rapidly and uniformly in the calcium carbonate forming process, impel the calcium carbonate surface energy to improve, lure that calcium carbonate forms ball-like structure into.
In the preparation method of above-mentioned low density stone paper, wherein said whitening agent is selected one or more in titanium dioxide, zinc oxide, barium sulfate, the zinc sulphide.
In the preparation method of above-mentioned low density stone paper, wherein said lubricant is selected a kind of in polyethylene wax, Poly Propylene Wax, the stearate.
In the preparation method of above-mentioned low density stone paper, wherein said high molecular polymer is one or more in the high density polyethylene(HDPE), medium-density polyethylene, linear density polyethylene, polypropylene of field of plastics processing film-grade commonly used or sheet material level.
The main cause that stone paper density is large be in the stone paper main raw material calcium carbonate density up to 2.7-2.9g/cm
3The present invention by use pore forming material in lime slurry with stable nitrogen closing in nano grade air bubbles, under hollow inductor synergy, after enough carbonic acid gas passed into, lime slurry reaction and formation kernel were that nano grade air bubbles, wall shell are the spherical low density carbonic acid calcium that is shaped as of calcium carbonate.The low density spherical calcium carbonate has the characteristics of hollow, spherical, closed pore, and not only density significantly reduces, and have oil-absorption(number) low, disperse performance excellent, good fluidity.Low density spherical calcium carbonate and whitening agent, lubricant, high molecular polymer can obtain the low density stone paper by blending extrusion reaction, drawing and forming.
Outstanding feature of the present invention shows:
1, lime CaO and water according to weight ratio 1:5 under the digestive organ condition, disperse the lime slurry that obtains by ultrasonic row, utilize stable nitrogen by bubble forming nano grade air bubbles, by the collaborative low density carbonic acid calcium with hollow, spherical, closed pore characteristic that obtains of hollow inductor.
2, utilize the low density carbonic acid calcium of hollow ball as the main raw material(s) of stone paper, fundamentally solved the large defective of stone paper density, stone paper has the advantages that density is low, cost is low.
3, owing to the spherical characteristics of hollow sphere calcium carbonate, oil-absorption(number) is low, has good dispersiveness and mobile, can reduce the consumption of lubricating auxiliary agent in the stone paper making processes, reduces the stone paper cost.
4, because the spherical characteristics of hollow sphere calcium carbonate, when the stone paper moulding stretches in length and breadth to can significantly stretching, thereby further reduce stone paper density.
Embodiment
Below the present invention is described in further detail by embodiment, but this should be interpreted as that scope of the present invention only limits to following example.In the situation that do not break away from aforesaid method thought of the present invention, according to various replacements or the change that ordinary skill knowledge and customary means are made, all should be within the scope of the present invention.
Embodiment 1
1) 200kg lime and 1000kg water are carried out hydration under 70 ℃ of conditions of digestive organ, and be that the ultrasonic machine of 4000W disperseed the Ca(OH that obtains 5 minutes by ultrasonic power)
2Lime slurry;
2) Ca(OH that is disperseing)
2Sneak into the secondary octanol of 0.25kg in the milk of lime, stir simultaneously ultra-sonic dispersion and pass into the microvesicle that nitrogen makes milk of lime formation even level;
3) add the 0.9kg bariumchloride, stir, then pass into carbon dioxide air source, the calcium carbonate building-up reactions occurs;
4) calcium carbonate building-up reactions and to be deposited in the nano level microvesicle that is formed by nitrogen surperficial occuring, obtains the low density spherical calcium carbonate by spraying drying;
5) with step 4) the low density spherical calcium carbonate 75kg that obtains, whitening agent zinc sulphide 3kg, by 2kg polyethylene wax swabbing, with 20kg high density polyethylene(HDPE) HF5110 in the single screw extrusion granulation, can obtain the low density stone paper in 65 type blow moulding machine two-way stretch moulding.
Test by the density to the paper of different thickness, significantly reducing appears in paper density, even is lower than the density of traditional paper pulp paper, and especially through after significantly stretching, thinner paper density is lower.Concrete detected result is as follows:
| Paper sheet thickness (mm) | 0.18 | 0.29 | 0.47 |
| Quantitative (g/ m 2） | 130 | 220 | 376 |
| Density (g/cm 3） | 0.73 | 0.76 | 0.80 |
Embodiment 2
1) 200kg lime and 1000kg water are carried out hydration under 70 ℃ of conditions of digestive organ, and be that the ultrasonic machine of 4000W disperseed the Ca(OH that obtains 10 minutes by ultrasonic power)
2Lime slurry;
2) Ca(OH that is disperseing)
2Sneak into the oleoxy methyl taurate of 0.6kg in the milk of lime, stir simultaneously ultra-sonic dispersion and pass into the microvesicle that nitrogen makes milk of lime formation even level;
3) add 0.6kg calcium sulfate, stir, then pass into carbon dioxide air source, the calcium carbonate building-up reactions occurs;
4) calcium carbonate building-up reactions and to be deposited in the nano level microvesicle that is formed by nitrogen surperficial occuring, obtains the low density spherical calcium carbonate by spraying drying;
5) with step 4) the low density spherical calcium carbonate 80kg that obtains, whitening agent titanium dioxide 5kg, by 1kg Poly Propylene Wax swabbing, with 14kg polypropylene PP5070 in Co rotating Twin Screw Extrusion blend granulation, can obtain the low density stone paper in 65 type blow moulding machine two-way stretch moulding.
Test by the density to the paper of different thickness, significantly reducing appears in paper density.Concrete detected result is as follows:
| Paper sheet thickness (mm) | 0.12 | 0.20 | 0.35 |
| Quantitative (g/ m 2） | 84 | 144 | 273 |
| Density (g/cm 3） | 0.70 | 0.72 | 0.78 |
Embodiment 3
1) 200kg lime and 1000kg water are carried out hydration under 70 ℃ of conditions of digestive organ, and be that the ultrasonic machine of 4000W disperseed the Ca(OH that obtains 8 minutes by ultrasonic power)
2Lime slurry;
2) Ca(OH that is disperseing)
2Sneak into the ethoxylated dodecyl alcohol of 0.2kg in the milk of lime, stir simultaneously ultra-sonic dispersion and pass into the microvesicle that nitrogen makes milk of lime formation even level;
3) add 1.2kg aluminum chloride, stir, then pass into carbon dioxide air source, the calcium carbonate building-up reactions occurs;
4) calcium carbonate building-up reactions and to be deposited in the nano level microvesicle that is formed by nitrogen surperficial occuring, obtains the low density spherical calcium carbonate by spraying drying;
5) with step 4) the low density spherical calcium carbonate 80kg that obtains, whitening agent barium sulfate 7kg, by 2kg stearate swabbing, with the blend granulation in Banbury mixer of 5kg polypropylene HP624J, 5kg high density polyethylene(HDPE) 8001, press the casting machine drawing and forming can obtain the low density stone paper at SL800.
Test by the density to the paper of different thickness, significantly reducing appears in paper density.Concrete detected result is as follows:
| Paper sheet thickness (mm) | 0.15 | 0.23 | 0.30 |
| Quantitative (g/ m 2） | 112 | 180 | 240 |
| Density (g/cm 3） | 0.75 | 0.78 | 0.80 |
Claims (5)
1. the preparation method of a low density stone paper is characterized in that the preparation process of low density stone paper is as follows:
1) lime CaO and water are carried out hydration, the Ca(OH that obtains according to weight ratio 1:5 under 70 ℃ of conditions of digestive organ)
2Lime slurry, and be that the ultrasonic machine of 4000W disperseed 5-10 minute by ultrasonic power;
2) at the refining Ca(OH that disperses)
2Sneak into the pore forming material that consumption is lime slurry weight 0.02-0.05% in the milk of lime, stir simultaneously ultra-sonic dispersion and pass into the microvesicle that nitrogen makes milk of lime formation even level;
3) adding consumption is the hollow inductor of lime slurry weight 0.05-0.1%, stirs, and then passes into carbon dioxide air source, and the calcium carbonate building-up reactions occurs;
4) under the effect of hollow inductor, the calcium carbonate building-up reactions occurs and be deposited in the nano level microvesicle surface that is formed by nitrogen, obtain the low density spherical calcium carbonate by spraying drying;
5) with step 4) the low density spherical calcium carbonate 75-80 weight part that obtains is as the stone paper main raw material(s), 3-7 weight part whitening agent is as brightening auxiliary material, by 1-3 weight part lubricating auxiliary agent disperse swabbing, with 10-20 weight part high molecular polymer in single Screw Extrusion (or parallel dual-screw extruding machine or Banbury mixer) blend granulation, can obtain the low density stone paper at blow moulding machine drawing and forming (or pressing casting machine drawing and forming).
2. the preparation method of said low density stone paper according to claim 1 is characterized in that: wherein said pore forming material is selected a kind of in dimerization butyl glycol ether, lauryl alcohol sulfuric ester sodium salt, ethoxylated dodecyl alcohol, oleoxy methyl taurate, n-Octanol, the secondary octanol.
3. the preparation method of said low density stone paper according to claim 1 is characterized in that: wherein said hollow inductor is selected a kind of in calcium sulfate, barium sulfate, bariumchloride, the aluminum chloride.
4. the preparation method of said low density stone paper according to claim 1 is characterized in that: preferentially select nitrogen as the bubble kernel in the preparation method.
5. the preparation method of said low density stone paper according to claim 1, it is characterized in that: wherein said whitening agent is selected one or more in titanium dioxide, zinc oxide, barium sulfate, the zinc sulphide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210368061.4A CN102910859B (en) | 2012-09-28 | 2012-09-28 | Preparation method for low-density stone paper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210368061.4A CN102910859B (en) | 2012-09-28 | 2012-09-28 | Preparation method for low-density stone paper |
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| Publication Number | Publication Date |
|---|---|
| CN102910859A true CN102910859A (en) | 2013-02-06 |
| CN102910859B CN102910859B (en) | 2014-02-12 |
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|---|---|---|---|
| CN201210368061.4A Expired - Fee Related CN102910859B (en) | 2012-09-28 | 2012-09-28 | Preparation method for low-density stone paper |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103980733A (en) * | 2014-05-26 | 2014-08-13 | 青州宇信钙业股份有限公司 | Method for synthesizing and modifying highly dispersed nanoscale calcium carbonate and multifunctional calcium carbonate reaction kettle |
| CN105621957A (en) * | 2015-12-24 | 2016-06-01 | 沈维益 | Ash calcium powder foamed composite packaging sheet |
| WO2018193329A1 (en) | 2017-04-20 | 2018-10-25 | Industrias Sustentables Nava, S.A.P.I. De C.V. | Ecological mineral paper made of recycled plastic and method for producing same |
| CN111040367A (en) * | 2019-12-18 | 2020-04-21 | 南宁市三通专用化学助剂技术有限公司 | Preparation method of high-filling low-density ABS master batch |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1772363A (en) * | 2004-11-11 | 2006-05-17 | 中国科学院化学研究所 | Template process of preparing hollow ball and composite hollow ball |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103980733A (en) * | 2014-05-26 | 2014-08-13 | 青州宇信钙业股份有限公司 | Method for synthesizing and modifying highly dispersed nanoscale calcium carbonate and multifunctional calcium carbonate reaction kettle |
| CN105621957A (en) * | 2015-12-24 | 2016-06-01 | 沈维益 | Ash calcium powder foamed composite packaging sheet |
| WO2018193329A1 (en) | 2017-04-20 | 2018-10-25 | Industrias Sustentables Nava, S.A.P.I. De C.V. | Ecological mineral paper made of recycled plastic and method for producing same |
| CN111040367A (en) * | 2019-12-18 | 2020-04-21 | 南宁市三通专用化学助剂技术有限公司 | Preparation method of high-filling low-density ABS master batch |
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