CN1962747A - PVC/micro nano powder composite material and its preparation method - Google Patents
PVC/micro nano powder composite material and its preparation method Download PDFInfo
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- CN1962747A CN1962747A CN 200610129604 CN200610129604A CN1962747A CN 1962747 A CN1962747 A CN 1962747A CN 200610129604 CN200610129604 CN 200610129604 CN 200610129604 A CN200610129604 A CN 200610129604A CN 1962747 A CN1962747 A CN 1962747A
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- 238000002360 preparation method Methods 0.000 title claims description 18
- 239000000843 powder Substances 0.000 claims abstract description 62
- 229910010272 inorganic material Inorganic materials 0.000 claims abstract description 40
- 239000011147 inorganic material Substances 0.000 claims abstract description 40
- 239000000463 material Substances 0.000 claims abstract description 17
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- 239000000203 mixture Substances 0.000 claims description 20
- 230000004048 modification Effects 0.000 claims description 17
- 238000012986 modification Methods 0.000 claims description 17
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- 239000003795 chemical substances by application Substances 0.000 claims description 14
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- 150000001875 compounds Chemical class 0.000 claims description 13
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 claims description 12
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical group CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 claims description 12
- 239000012188 paraffin wax Substances 0.000 claims description 12
- -1 titanic acid ester Chemical class 0.000 claims description 12
- 230000002087 whitening effect Effects 0.000 claims description 12
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- 239000004408 titanium dioxide Substances 0.000 claims description 8
- 235000021355 Stearic acid Nutrition 0.000 claims description 6
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 6
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 6
- 239000000049 pigment Substances 0.000 claims description 6
- 229920000058 polyacrylate Polymers 0.000 claims description 6
- 239000008117 stearic acid Substances 0.000 claims description 6
- 239000012756 surface treatment agent Substances 0.000 claims description 6
- 239000005995 Aluminium silicate Substances 0.000 claims description 5
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 5
- 229910021502 aluminium hydroxide Inorganic materials 0.000 claims description 5
- 235000012211 aluminium silicate Nutrition 0.000 claims description 5
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 5
- 235000010216 calcium carbonate Nutrition 0.000 claims description 5
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 5
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 5
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 5
- 239000000347 magnesium hydroxide Substances 0.000 claims description 5
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 5
- 239000000377 silicon dioxide Substances 0.000 claims description 5
- 235000012239 silicon dioxide Nutrition 0.000 claims description 5
- 229960001866 silicon dioxide Drugs 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 239000010456 wollastonite Substances 0.000 claims description 5
- 229910052882 wollastonite Inorganic materials 0.000 claims description 5
- 150000004645 aluminates Chemical class 0.000 claims description 3
- 239000007822 coupling agent Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 239000004593 Epoxy Substances 0.000 claims description 2
- 235000019738 Limestone Nutrition 0.000 claims description 2
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical group [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims description 2
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- 239000003549 soybean oil Substances 0.000 claims description 2
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Abstract
The invention discloses a PVC/micro-nanometer powder composite material and preparing method in the macromolecular material technical domain, which comprises the following steps: allocating raw material with PVC, stabilizer, manufacturing modifier, plasticizer, surface disposer, paraffine, 6000-order inorganic material powder and dye; blending these materials completely in the high-blender; preparing the PVC powder; squeezing the powder to grain through squeezer to obtain the PVC/micro-nanometer powder composite material.
Description
Technical field
The present invention relates to technical field of polymer materials, especially a kind of PVC/ micro-nano composite powder and its preparation method.
Background technology
Polyvinyl chloride (PVC) resin source is abundant, and the PVC plastics have good rigidly, intensity height, fire-retardant, corrosion-resistant, excellent properties such as electric insulating quality is good and soft or hard is adjustable, so of many uses.But the fragility of hard PVC (RPVC) goods is big, and shortcomings such as melt viscosity is big, poor heat stability are arranged during forming process, thereby has influenced the widespread use of PVC., the PVC/ micro nano powder composite material thermostability of our company's development is improved, and this PVC/ micro nano powder composite material can be made alloy with ABS, to reduce ABS production of articles cost.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of and can reduce cost, can satisfy simultaneously again the PVC/ micro-nano composite powder and its preparation method that its outward appearance and internal performance require.
The present invention is achieved through the following technical solutions:
A kind of PVC/ micro nano powder composite material is characterized in that: its component and parts by weight are respectively:
90～110 parts of PVC;
5～20 parts of inorganic material powders;
1.5～7 parts of stablizers;
0.5～4 part of modifier;
1～5 part in softening agent;
0.5～1.2 part of surface treatment agent;
0.5～1.2 part in paraffin.
And, also can add pigment in the described formation PVC/ micro nano powder composite material.
And described inorganic material powder is 6000 purpose water-ground limestones or light calcium carbonate or kaolin or talcum powder or silicon-dioxide or magnesium hydroxide or aluminium hydroxide or wollastonite, and the arbitrary combination mixture of above-mentioned substance, its particle diameter of 90%≤2 μ m.
And described stablizer is organic tin or nondusting lead complex stabilizer.
And described softening agent is dioctyl phthalate (DOP) or epoxy soybean oil.
And described modifier is ACR-401 or polyacrylate(s) material.
And described surface treatment agent is silane or titanic acid ester or aluminate coupling agent or stearic acid, and the arbitrary combination mixture of above-mentioned substance.
And described pigment is titanium dioxide and/or whitening agent, and wherein the parts by weight of titanium dioxide are 1～4 part, and the parts by weight of whitening agent are 0.01～0.2 part.
A kind of preparation method of PVC/ micro nano powder composite material may further comprise the steps:
(1) 6000 order inorganic material powders of preparation modification:
6000 order inorganic material powders are put into the high mixer high speed to mix, temperature begins dehumidifier when reaching 80 ℃ to 90 ℃, after temperature reaches 110 ℃ to 160 ℃, add surface treatment agent and mix stirring 5 to 10min, then the compound in the high mixer is put in the cold mixer and cooled off, be cooled to the 6000 order inorganic material powders that discharging after 30 ℃ to 50 ℃ obtains modification;
(2) preparation PVC/ micro nano powder composite material powder:
PVC, stablizer, softening agent are put into high mixer, mix and stir, temperature begins dehumidifier when reaching 80 ℃ to 90 ℃, in the time of dehumidifier 6000 order inorganic material powders, paraffin, pigment after the modification being put into high mixer also continues to mix to stir, when temperature rises to 105 ℃ to 135 ℃, compound in the high mixer put in the cold mixer cool off, add modifier when being cooled to 70 ℃ to 80 ℃, discharging after continuing to be cooled to 30 ℃ to 50 ℃, the material of emitting is the powder of PVC/ micro nano powder composite material;
(3) preparation PVC/ micro nano powder composite material:
Powder extruding pelletization on twin screw extruder with the PVC/ micro nano powder composite material, one district's temperature is 100～120 ℃ from the spout to the die head, 105～125 ℃ of two district's temperature, 120～140 ℃ of three district's temperature, 130～150 ℃ of four district's temperature, 130～150 ℃ of five district's temperature, 120～140 ℃ of six district's temperature, 105～125 ℃ of seven district's temperature, residence time are 0.5～2min, and engine speed is 200r/min, pressure is 10～15Mpa, discharging, extrude postcooling, drying, pelletizing, PVC/ micro nano powder composite material finished product.
Beneficial effect of the present invention and advantage are:
1. reasonably to add particle diameter be 6000 order inorganic material powders to this PVC/ micro nano powder composite material internal medicine, and improved the preparation technology of masterbatch, in preparation process, adopt the operation of dehumidifying and modification, the inorganic material powder that makes interpolation by inorganic nature to organic sex reversal, change into the oleophilic drainage performance by surface hydrophilic oleophobic performance, the problem of particle aggregation and bad dispersibility when successfully having solved the interpolation of 6000 order inorganic material powders, it is dispersed and compatible to make polyvinyl chloride (PVC) materials processing system improve, improvement system flowing property and processing characteristics, and can give goods better physical mechanical property, improved toughness and erosion-resisting characteristics.
2. the 6000 order inorganic material powders used of the present invention, its particle diameter of 90%≤2 μ m (can be expressed as D
90≤ 2 μ m), both had the advantage of part nano-powder, solved the shortcoming of nano-powder " easily reunion, the difficult dispersion " again substantially.
3. the present invention can be according to practical situation, under the prerequisite that does not reduce performance index, select for use 6000 order inorganic material powders of different additions to reach the purpose that reduces production costs, can save 5%～15% cost according to the different additions and the product comparison of corresponding common fillers, improve competition capability effectively.PVC/ micro nano powder composite material thermostability involved in the present invention obtains bigger raising, and can make alloy with ABS, to reduce the ABS production cost.
Embodiment
The present invention is described in further detail by following examples, and following embodiment is illustrative, is not determinate, can not limit protection scope of the present invention with following embodiment.
Embodiment 1
PVC/ micro nano powder composite material composition of raw materials:
PVC 100kg
Stablizer (commercially available nondusting lead complex stabilizer) 6kg
Modifier (commercially available ACR-401 or polyacrylate(s) material) 4kg
Softening agent (DOP or ESO) 2kg
Stearic acid (HSt) 0.6kg
Paraffin (WAX) 0.6kg
Titanium dioxide (TiO
2) 2kg
Whitening agent (commercially available) 0.05kg
6000 order inorganic material powder (water-ground limestone) 20kg
The 6000 order inorganic material powders of 20kg are put into the high mixer high speed to mix, temperature begins dehumidifier when reaching 80 ℃, add stearic acid mixing 10min after temperature reaches 110 ℃, put compound into cold mixer, be cooled to the 6000 order inorganic material powders that discharging after 40 ℃ obtains modification; PVC (polyvinyl chloride), stablizer, softening agent (DOP or ESO) are put into high mixer, mix and stir, temperature begins dehumidifier when reaching 80 ℃, in the time of dehumidifier 6000 order inorganic material powders, paraffin, titanium dioxide, whitening agent after the modification are put into high mixer and continued and heat, when temperature rises to 105 ℃, compound in the high mixer put in the cold mixer cool off, add modifier (ACR-401) when being cooled to below 80 ℃, discharging after continuing to be cooled to 30 ℃, the material of emitting are the powder of PVC/ micro nano powder composite material.
6000 order inorganic material powders in this prescription adopt water-ground limestone, also can adopt light calcium carbonate, kaolin, talcum powder, silicon-dioxide, magnesium hydroxide, aluminium hydroxide, wollastonite or their mixture.The powder of the PVC/ micro nano powder composite material of producing by this prescription promptly can be made into the PVC/ micro nano powder composite material through the extrusion shaping machine extruding pelletization.The manufacturing process of PVC/ micro nano powder composite material is:
Go up extruding pelletization by following processing condition at twin screw extruder (unit is extruded in the compounding of KY50/100 parallel dual-screw), its extruding and pelletizing process (temperature ℃) parameter is as follows:
| One district | Two districts | Three districts | Four districts | Five districts | Six districts | Seven districts | |
| Temperature, ℃ | 100～120 | 105～125 | 120～140 | 130～150 | 130～150 | 120～140 | 105～125 |
Residence time is 0.5～2min, and engine speed is 200r/min, and pressure is 10～15Mpa, discharging, extrudes postcooling, drying, pelletizing PVC/ micro nano powder composite material finished product.
Embodiment 2
PVC/ micro nano powder composite material composition of raw materials:
PVC 100kg
Stablizer (commercially available nondusting lead complex stabilizer) 6kg
Modifier (commercially available ACR-401 or polyacrylate(s) material) 4kg
Softening agent (DOP or ESO) 3kg
Aluminic acid ester 0.6kg
Paraffin (WAX) 0.6kg
Titanium dioxide (TiO
2) 2kg
Whitening agent (commercially available) 0.05kg
6000 order inorganic material powder (water-ground limestone) 15kg
The 6000 order inorganic material powders of 15kg are put into the high mixer high speed to mix, temperature begins dehumidifier when reaching 85 ℃, add aluminate coupling agent mixing 5min after temperature reaches 120 ℃, put compound into cold mixer, be cooled to the 6000 order inorganic material powders that discharging after 50 ℃ obtains modification; PVC, stablizer, softening agent (DOP) are put into high mixer, mix and stir, temperature begins dehumidifier when reaching 90 ℃, in the time of dehumidifier 6000 order inorganic material powders, paraffin, titanium dioxide, whitening agent after the modification are put into high mixer and continued and heat, when temperature rises to 135 ℃, compound in the high mixer put in the cold mixer cool off, add modifier (ACR-401) when being cooled to below 80 ℃, discharging after continuing to be cooled to 50 ℃, the material of emitting are the powder of PVC/ micro nano powder composite material.
Powder with the PVC/ micro nano powder composite material of above-mentioned preparation, go up extruding pelletization at twin screw extruder (unit is extruded in the compounding of KY50/100 parallel dual-screw), extruding and pelletizing process (temperature ℃) parameter and injection molding technique (temperature ℃) parameter is identical with embodiment 1.
Embodiment 3
PVC/ micro nano powder composite material composition of raw materials:
PVC 100kg
Stablizer (commercially available nondusting lead complex stabilizer) 3kg
Modifier (commercially available ACR-401 or polyacrylate(s) material) 1kg
Softening agent (DOP or ESO) 1kg
Titanic acid ester 0.4kg
Paraffin (WAX) 0.4kg
Titanium dioxide (TiO
2) 1.5kg
Whitening agent (commercially available) 0.02kg
6000 order inorganic material powder (water-ground limestone) 15kg
The 6000 order inorganic material powders of 15kg are put into the high mixer high speed to mix, temperature begins dehumidifier when reaching 90 ℃, add titanic acid ester after temperature reaches 160 ℃ and mix 8min, put compound into cold mixer, be cooled to the 6000 order inorganic material powders that discharging after 45 ℃ obtains modification; PVC, stablizer, softening agent (DOP) are put into high mixer, mix and stir, temperature begins dehumidifier when reaching 85 ℃, in the time of dehumidifier 6000 order inorganic material powders, paraffin, titanium dioxide, whitening agent after the modification are put into high mixer and continued and heat, when temperature rises to 125 ℃, compound in the high mixer put in the cold mixer cool off, add modifier (ACR-401) when being cooled to below 80 ℃, discharging after continuing to be cooled to 40 ℃, the material of emitting are the powder of PVC/ micro nano powder composite material.
6000 order inorganic material powders in this prescription adopt water-ground limestone, also can adopt light calcium carbonate, kaolin, talcum powder, silicon-dioxide, magnesium hydroxide, aluminium hydroxide, wollastonite or their mixture.
Powder with the PVC/ micro nano powder composite material of above-mentioned preparation, go up extruding pelletization at twin screw extruder (unit is extruded in the compounding of KY50/100 parallel dual-screw), extruding and pelletizing process (temperature ℃) parameter and injection molding technique (temperature ℃) parameter is identical with embodiment 1.
Embodiment 4
PVC/ micro nano powder composite material composition of raw materials:
PVC 100kg
Stablizer (commercially available nondusting lead complex stabilizer) 6.5kg
Modifier (commercially available ACR-401 or polyacrylate(s) material) 5kg
Softening agent (DOP or ESO) 4kg
Aluminic acid ester/stearic acid (HSt) 1.0kg
Paraffin (WAX) 1.0kg
Titanium dioxide (TiO
2) 2kg
Whitening agent (commercially available) 0.05kg
6000 order inorganic material powder (water-ground limestone) 15kg
The 6000 order inorganic material powders of 15kg are put into the high mixer high speed to mix, temperature begins dehumidifier when reaching 90 ℃, after reaching 160 ℃, temperature adds aluminic acid ester/stearic acid mixing 10min, put compound into cold mixer, be cooled to the 6000 order inorganic material powders that discharging after 50 ℃ obtains modification; PVC, stablizer, softening agent (DOP) are put into high mixer, mix and stir, temperature begins dehumidifier when reaching 90 ℃, in the time of dehumidifier 6000 order inorganic material powders, paraffin, titanium dioxide, whitening agent after the modification are put into high mixer and continued and heat, when temperature rises to 135 ℃, compound in the high mixer put in the cold mixer cool off, add modifier (ACR-401) when being cooled to below 80 ℃, discharging after continuing to be cooled to 50 ℃, the material of emitting are the powder of PVC/ micro nano powder composite material.
6000 order inorganic material powders in this prescription adopt water-ground limestone, also can adopt light calcium carbonate, kaolin, talcum powder, silicon-dioxide, magnesium hydroxide, aluminium hydroxide, wollastonite or their mixture.
Powder with the PVC/ micro nano powder composite material of above-mentioned preparation, go up extruding pelletization at twin screw extruder (unit is extruded in the compounding of KY50/100 parallel dual-screw), extruding and pelletizing process (temperature ℃) parameter and injection molding technique (temperature ℃) parameter is identical with embodiment 1.
Above examples of implementation can be according to practical situation, under the prerequisite that does not reduce the performance pointer, select for use 6000 order inorganic material powders of different additions to reach the purpose that reduces production costs, can save 5%～15% cost according to the different additions and the product comparison of corresponding common fillers.
The made product of embodiment is detected by Tianjin quality monitoring testing station the 5th station, reaches corresponding national standards fully.
Select for use 6000 order inorganic material powders with inorganic rigid particle strengthen, toughness reinforcing theory is as the research theory foundation.
In the physically modified of PVC, properties-correcting agent is distinguished flexible body and inelastic body two classes by amount of rigidity.Though can obtain comparatively ideal toughness with elastomeric method, increase the loading level of cheap properties-correcting agent, reduced intensity, rigidity, thermotolerance and the processing fluidity of material, be to be that cost reaches the purpose that reduces cost to sacrifice certain mechanical property.But not elastic body toughening then is a kind of newer method, especially developed recently " inorganic rigid particle strengthens, toughness reinforcing theory " that get up, not only can improve toughness, rigidity, the increase size stability of PVC, but also can make intensity, modulus, heat-drawn wire, processing fluidity obtain suitable improvement.
This theory general solution is interpreted as: inorganic particulate is dispersed in the matrix resin, and when being subjected to external impacts, because the existence of inorganic particulate has produced stress concentration effect, resin produces crack splitting around causing.Simultaneously, the matrix between the particle has also produced viscous deformation, absorbs striking energy, thereby reaches toughening effect; The existence of inorganic particulate is obstructed and passivation the matrix cracking expansion, finally stops the unlikely destructiveness cracking that develops into of tiny crack; Along with the particle fineness attenuates, the specific surface area of particle increases, and particle and matrix contact area increase, and material can produce more crack crackle and viscous deformation when being hit, thereby absorbs energy.Another kind of mechanism is thought two tensile stresss very that act on of matrix and particle, and the position is a stress under the line.Because the effect of power, effect can be stressed near the equator of particle, helping surrender occurs, in addition, because the two poles of the earth are subjected to action of pulling stress, when the interface cementability is more weak, the interface unsticking can at first take place at the two poles of the earth, form a hole around being equivalent to make particle, according to the stress distribution for the hole, the stress on the equatorial plane of hole is 3 times of this body stress.Therefore, when this body stress did not reach the matrix yielding stress as yet, partial points had begun to produce surrender, promptly equally also impelled the matrix surrender, and combined effect improves the toughness of superpolymer.
By to different-grain diameter CaCO
3With discovering of PVC compound system performance: under the situation that inorganic rigid particle is not reunited, the more little resulting composite property of particle diameter is good more, especially adds an amount of nanometer CaCO in the co-mixing system
3During particle, its shock strength, tensile strength and elongation at break all can be improved simultaneously.Chemical process modified Nano CaCO
3, its interaction between homodisperse and interface in the PVC matrix is strengthened, thereby cause its shock strength, elongation at break, tensile modulus all to increase considerably, and tensile strength almost remains unchanged; But, work as CaCO
3Consumption surpasses at 15% o'clock, nano level CaCO
3The matrix material of modification all is lower than by micron order CaCO on tensile strength and notched Izod impact strength
3The composite system of modification.By analysis, particle diameter is thin more, the phenomenon of powder generation secondary agglomeration is serious more, though the particle diameter of addition material is thin more in theory, add the enhancing that obtains in the polymkeric substance to, toughness reinforcing mechanical property is outstanding more, because the as easy as rolling off a log generation secondary agglomeration of nano-powder, the true particle diameter of nano-powder is often much larger than theoretical particle diameter during application but in fact.May command still under laboratory environment, in case be amplified to interim test, the quality of product not only can not improve and occurs the phenomenon that descends on the contrary.Therefore, the 6000 order inorganic material powders that the present invention uses, its particle diameter of 90%≤2 μ m (can be expressed as D
90≤ 2 μ m), both had the advantage of part nano-powder, solved the shortcoming of nano-powder " easily reunion, the difficult dispersion " again substantially.
Claims (9)
1. PVC/ micro nano powder composite material, it is characterized in that: its component and parts by weight are respectively:
90～110 parts of PVC;
5～20 parts of inorganic material powders;
1.5～7 parts of stablizers;
0.5～4 part of modifier;
1～5 part in softening agent;
0.5～1.2 part of surface treatment agent;
0.5～1.2 part in paraffin.
2. PVC/ micro nano powder composite material according to claim 1 is characterized in that: also can add pigment in the described formation PVC/ micro nano powder composite material.
3. PVC/ micro nano powder composite material according to claim 1, it is characterized in that: described inorganic material powder is 6000 purpose water-ground limestones or light calcium carbonate or kaolin or talcum powder or silicon-dioxide or magnesium hydroxide or aluminium hydroxide or wollastonite, and the arbitrary combination mixture of above-mentioned substance, its particle diameter of 90%≤2 μ m.
4. PVC/ micro nano powder composite material according to claim 1 is characterized in that: described stablizer is organic tin or nondusting lead complex stabilizer.
5. PVC/ micro nano powder composite material according to claim 1 is characterized in that: described modifier is ACR-401 or polyacrylate(s) material.
6. PVC/ micro nano powder composite material according to claim 1 is characterized in that: described softening agent is dioctyl phthalate (DOP) or epoxy soybean oil.
7. PVC/ micro nano powder composite material according to claim 1 is characterized in that: described surface treatment agent is silane or titanic acid ester or aluminate coupling agent or stearic acid, and the arbitrary combination mixture of above-mentioned substance.
8. PVC/ micro nano powder composite material according to claim 2 is characterized in that: described pigment is titanium dioxide and/or whitening agent, toner, and wherein the parts by weight of titanium dioxide are 1～4 part, and the parts by weight of whitening agent are 0.01～0.2 part.
9. the preparation method of a PVC/ micro nano powder composite material as claimed in claim 1, it is characterized in that: its preparation method may further comprise the steps:
(1) 6000 order inorganic material powders of preparation modification:
6000 order inorganic material powders are put into the high mixer high speed to mix, temperature begins dehumidifier when reaching 80 ℃ to 90 ℃, after temperature reaches 110 ℃ to 160 ℃, add surface treatment agent and mix stirring 5 to 10min, then the compound in the high mixer is put in the cold mixer and cooled off, be cooled to the 6000 order inorganic material powders that discharging after 30 ℃ to 50 ℃ obtains modification;
(2) preparation PVC/ micro nano powder composite material powder:
PVC, stablizer, softening agent are put into high mixer, mix and stir, temperature begins dehumidifier when reaching 80 ℃ to 90 ℃, in the time of dehumidifier 6000 order inorganic material powders, paraffin, pigment after the modification being put into high mixer also continues to mix to stir, when temperature rises to 105 ℃ to 135 ℃, compound in the high mixer put in the cold mixer cool off, add modifier when being cooled to 70 ℃ to 80 ℃, discharging after continuing to be cooled to 30 ℃ to 50 ℃, the material of emitting is the powder of PVC/ micro nano powder composite material;
(3) preparation PVC/ micro nano powder composite material:
Powder extruding pelletization on twin screw extruder with the PVC/ micro nano powder composite material, one district's temperature is 100～120 ℃ from the spout to the die head, 105～125 ℃ of two district's temperature, 120～140 ℃ of three district's temperature, 130～150 ℃ of four district's temperature, 130～150 ℃ of five district's temperature, 120～140 ℃ of six district's temperature, 105～125 ℃ of seven district's temperature, residence time are 0.5～2min, and engine speed is 200r/min, pressure is 10～15Mpa, discharging, extrude postcooling, drying, pelletizing, PVC/ micro nano powder composite material finished product.
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| CN106398016A (en) * | 2016-05-25 | 2017-02-15 | 南通慧源塑胶有限公司 | Environment-friendly modified PVC material with high toughness |
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Assignee: Xinxin Pipeline Repairing Engineering Co Ltd, Tianjin Development Zone Assignor: Dehao Supermicro New Materials Co., Ltd., Tianjin Contract fulfillment period: 2009.9.1 to 2019.9.1 contract change Contract record no.: 2009120000211 Denomination of invention: PVC/ micro nano powder composite material and preparation method thereof License type: Exclusive license Record date: 2009.9.14 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.9.1 TO 2019.9.1; CHANGE OF CONTRACT Name of requester: TIANJIN DEVELOPMENT ZONE XINXIN PIPE REPAIR ENGINE Effective date: 20090914 |
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