CN105670125A - High-smoothness long-glass-fiber flame-retardant toughened polypropylene blend material and preparation method thereof - Google Patents
High-smoothness long-glass-fiber flame-retardant toughened polypropylene blend material and preparation method thereof Download PDFInfo
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
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- C08L23/12—Polypropene
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
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- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/10—Homopolymers or copolymers of propene
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention belongs to the technical field of high-polymer composite materials, and relates to a high-smoothness long-glass-fiber flame-retardant toughened polypropylene blend material and a preparation method thereof. The preparation method comprises the following steps: A. preparing the following components in parts by mass: 50-70 parts of polypropylene resin, 10-25 parts of synergic toughener master batch, 0.5-2.0 parts of chain extender, 2-5 parts of anti-floating fiber agent and 25-40 parts of main toughener master batch; B. blending: adding the components in the step A into an extruder, and blending to obtain a blend; and C. preparation: drawing the blend in the step B out of the head of an extruder, cooling, blow-drying, and granulating to obtain the high-smoothness long-glass-fiber flame-retardant toughened polypropylene blend material. The high-smoothness long-glass-fiber flame-retardant toughened polypropylene blend material is especially suitable for medium/high-end furniture supplies with higher requirements for product shape structure and appearance, cost, processibility and the like.
Description
Technical field
The invention belongs to organic polymer composite technical field, it relates to a kind of high bright and clean long glass flame-proof toughening polypropylene intermingling material and its preparation method.
Background technology
Polypropylene a kind of has excellent mechanical property and the comparatively moderate thermoplastic resin of price, is widely used in furniture material field. At present, domestic factory generally adopts and the polypropylene of non-modified directly directly carries out injection molding, but product performance are poor. Although polypropylene furniture is fast light, oily, chemical solvents performance is good, but difference of hardness, should prevent collision and point of a knife hard object from drawing wound, repair if any the available hot melt process of cracking, can glue without glue. At present, the salient features of middle and high end furniture material requires 1) high-strength and high-ductility; 2) surface light; 3) moderate. Consequently, it is desirable to polypropylene material strengthened, increase the property modification such as tough, simultaneously preferably can also control material cost to a certain degree.
Fiberglass reinforced modified polypropylene resin is a kind of more conventional mode that polypropylene modification strengthens Gao Ren, and this matrix material has excellent mechanical property, extends the application of polypropylene product. But, polypropylene belongs to nonpolar product, and glass belongs to polarity product owing to a large amount of active function groups is contained on surface, and therefore two-phase interface consistency is not good. Simultaneously, if inserting glass fiber content relatively big (> 20%), glass can due to polyacrylic coated bad and be exposed to the surface of matrix material, cause the floating fibre that material product product is a large amount of, although can also the intensity of raising matrix material to a certain degree, but glass is separated easily being formed or concentrated (glass reunion) phenomenon of stress in the course of processing, make product surface coarse and grow dim, thus affect the smooth finish of product and attractive in appearance, the long-acting application of restriction glass polypropylene composite material.
Summary of the invention
It is an object of the invention to for the problems referred to above, it is provided that a kind of high bright and clean long glass flame-proof toughening polypropylene intermingling material.
It is a further object of the present invention to provide the preparation method of a kind of high bright and clean long glass flame-proof toughening polypropylene intermingling material.
For achieving the above object, present invention employs following technical proposal: the preparation method of a kind of high bright and clean long glass flame-proof toughening polypropylene intermingling material, comprises the following steps,
A, get the raw materials ready, comprise the component of following mass fraction:
Acrylic resin is 50-70 part,
Coordination plasticizing agent master batch is 10-25 part,
Chainextender is 0.5-2.0 part,
The fine agent of anti-floating is 2-5 part,
Main toughner master batch is 25-40 part,
B, blended, the component in steps A is put in forcing machine blended, obtains blend,
C, preparation, pull out the blend of step B through the head of forcing machine, cool, blow dry, pelletizing and namely obtain high bright and clean long glass flame-proof toughening polypropylene intermingling material.
In the preparation method of above-mentioned high bright and clean long glass flame-proof toughening polypropylene intermingling material, in stepb, the component of steps A is dried 2h at 80 DEG C, then fine to acrylic resin, chainextender and anti-floating agent is added forcing machine from main spout, main toughner master batch and coordination plasticizing agent master batch add twin screw extruder from side spout, the each zone temperatures of forcing machine between 175-185 DEG C, engine speed extrude blended between 100-150r/min, obtain blend.
In the preparation method of above-mentioned high bright and clean long glass flame-proof toughening polypropylene intermingling material, described main toughner master batch is for there being captain's glass master batch, and preparation method is as follows:
(1), by fire retardant, coupling agent, maleic anhydride, polyvinyl alcohol emulsion and nano-calcium carbonate being placed in container according to the ratio of mass ratio 1:1:12:4:1, constant temperature 55 DEG C of stirring reaction 5h obtain treating compound liquid;
(2), described for step (1) treating compound liquid and long glass fibres are put into high speed mixer carrying out combination treatment, mixing time is 2 hours, obtains long glass fibres blend, and treating compound liquid and long glass fibres mass ratio are 3:11;
(3) it is, that the acrylic resin of 3:1 is blended by the long glass fibres blend of step (2) and mass ratio, and be placed in high speed mixer and carry out combination treatment, mixing time is 0.5 hour, is then placed in 80 DEG C of baking ovens to dry put 2-4 hour, for subsequent use;
(4), by step (3) blend it is placed in single screw extrusion machine melt blending, extruding pelletization, must have captain's glass master batch.
In the preparation method of above-mentioned high bright and clean long glass flame-proof toughening polypropylene intermingling material, described coupling agent is γ-aminopropyl triethoxysilane, described fire retardant is expansion type flame retardant trimeric cyanamide, nano-calcium carbonate particle diameter is 0.4-2 μm, and the length-to-diameter ratio of long glass fibres is 200-500. Wherein, the trade mark of γ-aminopropyl triethoxysilane is KH550, and in step (3), acrylic resin is high melting means acrylic resin, and melting index is greater than 20g/min.
In the preparation method of above-mentioned high bright and clean long glass flame-proof toughening polypropylene intermingling material, described coordination plasticizing agent master batch be POE, talcum powder, maleic anhydride and acrylic resin blended become.
In the preparation method of above-mentioned high bright and clean long glass flame-proof toughening polypropylene intermingling material, described talcum powder size is 6000-7000 order, and the melting index of acrylic resin is 12-18g/min; POE is Dupont Tao Shi POE8999.
In the preparation method of above-mentioned high bright and clean long glass flame-proof toughening polypropylene intermingling material, the preparation method of described coordination plasticizing agent master batch is: be that the ratio of 6:4:1:3 adds in homogenizer successively taking mass ratio by POE, polypropylene, maleic anhydride and talcum powder, stir 15min, then it is warming up to 50 DEG C to continue to stir 2h, leave standstill cooling, then blend being placed in twin screw extruder, namely extruding pelletization obtains coordination plasticizing agent master batch.
In the preparation method of above-mentioned high bright and clean long glass flame-proof toughening polypropylene intermingling material, described chainextender is dendritic macromole rheology modifier, and the fine agent of anti-floating is EVA.
In the preparation method of above-mentioned high bright and clean long glass flame-proof toughening polypropylene intermingling material, described dendritic macromole rheology modifier is the daiamid dendritic macromole in 1-3 generation, average relative molecular mass is 5200-11500, and described EVA average molecular mass is 5000-8000.
According to the high bright and clean long glass flame-proof toughening polypropylene intermingling material that above-mentioned preparation method obtains.
Compared with prior art, it is an advantage of the current invention that:
1, main toughner has captain's glass master batch by the coated one layer of macromolecule layer with flame retardant properties of scorification, this macromolecule layer comprises the compositions such as fire retardant, coupling agent, calcium carbonate, this macromolecule layer can effectively reduce the surface polarity of glass fibre, improve the consistency at glass fibre and acrylic resin interface, thus improve the loading level of glass fibre, it is to increase the mechanical property of intermingling material; Meanwhile, owing to macromolecule layer contains flame retardant constituent so that there is captain's glass master batch also to possess flame retardant properties simultaneously, the flame retardant properties that improve blend blended with acrylic resin; In addition, adding of nano-calcium carbonate etc., nanoparticle also can to a certain degree improve the distribution orientation of glass fibre, it is to increase the dispersion of glass at acrylic resin, alleviates floating fine phenomenon;
2, main toughner has captain's glass master batch and coordination plasticizing agent master batch coordination plasticizing acrylic resin, can alleviate the shrinkage phenomenon that around glass, crystalling propylene causes, be conducive to forming high smooth finish surface, and improves intermingling material over-all properties further; Wherein coordination plasticizing agent master batch is the blended master batch of POE, talcum powder, maleic anhydride and polypropylene fusion, namely maleic anhydride graft processed polyolefin elastomer and talcum powder, polypropylene fusion are blended, this coordination plasticizing agent master batch (macromolecular material is main) and main toughner (inorganic materials is main) modified synergic acrylic resin, can effectively improve toughness and the flame retardant resistance of acrylic resin;
3, adopting dendritic macromole rheology modifier to be chainextender, EVA is the fine agent of anti-floating, can further improve inorganic particulate and polyacrylic consistency, make this glass flame-proof reinforced polypropylene blend composition without warpage, and possessed good toughness and rheology, it is to increase the over-all properties of matrix material.
A kind of high bright and clean long glass flame-proof toughening polypropylene intermingling material of the present invention is specially adapted on the middle and high end household goods that shape of product structure and outward appearance, cost and processibility etc. had higher requirements.
Embodiment
Reagent used in following embodiment, if no special instructions, it is possible to buy from routine biochemistry reagent shop and obtain. Quantitative data in following examples, all arranges and repeats experiment for three times, results averaged.
Embodiment 1
1, main toughner master batch is prepared
Main toughner master batch is for there being captain's glass master batch, and preparation method is as follows:
(1), by fire retardant 1kg, coupling agent 1kg, maleic anhydride 12kg, polyvinyl alcohol emulsion 4kg and nano-calcium carbonate 1kg being placed in container, constant temperature 55 DEG C of stirring reaction 5h obtain treating compound liquid;
(2), described for step (1) treating compound liquid and long glass fibres are put into high speed mixer carrying out combination treatment, mixing time is 2 hours, obtains long glass fibres blend, and treating compound liquid and long glass fibres mass ratio are 3:11;
(3) it is, that the acrylic resin of 3:1 is blended by the long glass fibres blend of step (2) and mass ratio, and be placed in high speed mixer and carry out combination treatment, mixing time is 0.5 hour, is then placed in 80 DEG C of baking ovens to dry put 2-4 hour, for subsequent use; In this step, it may be preferred that the melting index of acrylic resin is 12-18g/min;
(4), by step (3) blend it is placed in single screw extrusion machine melt blending, extruding pelletization, must have captain's glass master batch.Described coupling agent is γ-aminopropyl triethoxysilane (KH550), and described fire retardant is expansion type flame retardant trimeric cyanamide, and nano-calcium carbonate particle diameter is 0.4-2 μm, and the length-to-diameter ratio of long glass fibres is 200-500.
Main toughner has captain's glass master batch by the coated one layer of macromolecule layer with flame retardant properties of scorification, this macromolecule layer comprises the compositions such as fire retardant, coupling agent, calcium carbonate, this macromolecule layer can effectively reduce the surface polarity of glass fibre, improve the consistency at glass fibre and acrylic resin interface, thus improve the loading level of glass fibre, it is to increase the mechanical property of intermingling material; Meanwhile, owing to macromolecule layer contains flame retardant constituent so that there is captain's glass master batch also to possess flame retardant properties simultaneously, the flame retardant properties that improve blend blended with acrylic resin; In addition, adding of nano-calcium carbonate etc., nanoparticle also can to a certain degree improve the distribution orientation of glass fibre, it is to increase the dispersion of glass at acrylic resin, alleviates floating fine phenomenon;
2, coordination plasticizing agent master batch is prepared
Coordination plasticizing agent master batch be POE, talcum powder, maleic anhydride and acrylic resin blended become. Talcum powder size is 6000-7000 order, and the melting index of acrylic resin is 12-18g/min; POE is Dupont Tao Shi POE8999.
The preparation method of coordination plasticizing agent master batch is: be that the ratio of 6:4:1:3 adds in homogenizer successively taking mass ratio by POE, polypropylene, maleic anhydride and talcum powder, stir 15min, then it is warming up to 50 DEG C to continue to stir 2h, leave standstill cooling, then blend being placed in twin screw extruder, namely extruding pelletization obtains coordination plasticizing agent master batch.
Coordination plasticizing agent master batch is the blended master batch of POE, talcum powder, maleic anhydride and polypropylene fusion, namely maleic anhydride graft processed polyolefin elastomer and talcum powder, polypropylene fusion are blended, this coordination plasticizing agent master batch (macromolecular material is main) and main toughner (inorganic materials is main) modified synergic acrylic resin, can effectively improve toughness and the flame retardant resistance of acrylic resin
3, the high bright and clean long glass flame-proof toughening polypropylene intermingling material of preparation
By acrylic resin 50kg, coordination plasticizing agent master batch 10kg, chainextender 0.5kg, the fine agent of anti-floating is 2kg, and main toughner master batch 25kg part, dries 2h at 80 DEG C, then fine to acrylic resin, chainextender and anti-floating agent is added forcing machine from main spout, main toughner master batch and coordination plasticizing agent master batch add twin screw extruder from side spout, each zone temperatures of forcing machine between 175-185 DEG C, engine speed extrude blended between 100-150r/min, obtain blend. Blend pulled out through the head of forcing machine, cools, blow dry, pelletizing and namely obtain high bright and clean long glass flame-proof toughening polypropylene intermingling material. Preferably, forcing machine is twin screw extruder.
Chainextender is dendritic macromole rheology modifier, and the fine agent of anti-floating is EVA. Preferably, dendritic macromole rheology modifier is the daiamid dendritic macromole in 1-3 generation, and average relative molecular mass is 5200-11500, and described EVA average molecular mass is 5000-8000.
Adopting dendritic macromole rheology modifier to be chainextender, EVA is the fine agent of anti-floating, can further improve inorganic particulate and polyacrylic consistency, make this glass flame-proof reinforced polypropylene blend composition without warpage, and possessed good toughness and rheology, it is to increase the over-all properties of matrix material.
A kind of high bright and clean long glass flame-proof toughening polypropylene intermingling material of the present invention is specially adapted on the middle and high end household goods that shape of product structure and outward appearance, cost and processibility etc. had higher requirements.
Embodiment 2
The present embodiment is substantially the same manner as Example 1, and difference is, in the step of the high bright and clean long glass flame-proof toughening polypropylene intermingling material of preparation, acrylic resin is 70kg, and coordination plasticizing agent master batch is 25kg, and chainextender is 2.0kg, the fine agent of anti-floating is 5kg, and main toughner master batch is 40kg.
Embodiment 3
The present embodiment is substantially the same manner as Example 1, and difference is, in the step of the high bright and clean long glass flame-proof toughening polypropylene intermingling material of preparation, acrylic resin is 60kg, and coordination plasticizing agent master batch is 20kg, and chainextender is 1kg, the fine agent of anti-floating is 3kg, and main toughner master batch is 35kg.
Comparative example 1
This comparative example is compared with embodiment 1, and difference is, it does not have prepare main toughner master batch, and when preparing high bright and clean long glass flame-proof toughening polypropylene intermingling material for adding main toughner master batch, all the other steps are identical with embodiment 1.
Intermingling material above-described embodiment 1-3 and comparative example 1 prepared uses injection moulding machine to be injection molded into standard batten after fully dry, carries out mechanical property and outward appearance such as compares at the performance test, and detailed performance is in table 1.
Test data contrast in each embodiment of table 1
As seen from Table 1, comparative example and embodiments of the invention 1-3 adopt identical preparation method, but its raw material adopts undressed long glass, and its batten has warpage, surface irregularity, and UL-94 burning rank is V-2, have a small amount of floating fine, and intensity is also lower. Embodiments of the invention 1-3, owing to adopting main toughner to have captain's glass master batch, and by its surface coated polymeric membrane and coordination plasticizing agent master batch synergy, batten does not have warpage to produce, smooth surface, without floating fine. Further, the intensity of batten of the present invention is also obviously higher than comparative example.
Specific embodiment described herein is only to the present invention's spirit explanation for example. Described specific embodiment can be made various amendment or supplements or adopt similar mode to substitute by those skilled in the art, but can't deviate the spirit of the present invention or surmount the scope that appended claims defines.
Claims (10)
1. the preparation method of one kind high bright and clean long glass flame-proof toughening polypropylene intermingling material, it is characterised in that, comprise the following steps,
A, get the raw materials ready, comprise the component of following mass fraction:
Acrylic resin is 50-70 part,
Coordination plasticizing agent master batch is 10-25 part,
Chainextender is 0.5-2.0 part,
The fine agent of anti-floating is 2-5 part,
Main toughner master batch is 25-40 part,
B, blended, the component in steps A is put in forcing machine blended, obtains blend,
C, preparation, pull out the blend of step B through the head of forcing machine, cool, blow dry, pelletizing and namely obtain high bright and clean long glass flame-proof toughening polypropylene intermingling material.
2. the preparation method of the bright and clean long glass flame-proof toughening polypropylene intermingling material of height according to claim 1, it is characterized in that, in stepb, the component of steps A is dried 2h at 80 DEG C, then fine to acrylic resin, chainextender and anti-floating agent is added forcing machine from main spout, main toughner master batch and coordination plasticizing agent master batch add twin screw extruder from side spout, the each zone temperatures of forcing machine between 175-185 DEG C, engine speed extrude blended between 100-150r/min, obtain blend.
3. the preparation method of the bright and clean long glass flame-proof toughening polypropylene intermingling material of height according to claim 1, it is characterised in that, described main toughner master batch is for there being captain's glass master batch, and preparation method is as follows:
(1), by fire retardant, coupling agent, maleic anhydride, polyvinyl alcohol emulsion and nano-calcium carbonate being placed in container according to the ratio of mass ratio 1:1:12:4:1, constant temperature 55 DEG C of stirring reaction 5h obtain treating compound liquid;
(2), described for step (1) treating compound liquid and long glass fibres are put into high speed mixer carrying out combination treatment, mixing time is 2 hours, obtains long glass fibres blend, and treating compound liquid and long glass fibres mass ratio are 3:11;
(3) it is, that the acrylic resin of 3:1 is blended by the long glass fibres blend of step (2) and mass ratio, and be placed in high speed mixer and carry out combination treatment, mixing time is 0.5 hour, is then placed in 80 DEG C of baking ovens to dry put 2-4 hour, for subsequent use;
(4), by step (3) blend it is placed in single screw extrusion machine melt blending, extruding pelletization, must have captain's glass master batch.
4. the preparation method of the bright and clean long glass flame-proof toughening polypropylene intermingling material of height according to claim 3, it is characterized in that, described coupling agent is γ-aminopropyl triethoxysilane, described fire retardant is expansion type flame retardant trimeric cyanamide, nano-calcium carbonate particle diameter is 0.4-2 μm, and the length-to-diameter ratio of long glass fibres is 200-500.
5. the preparation method of the bright and clean long glass flame-proof toughening polypropylene intermingling material of height according to claim 1, it is characterised in that, described coordination plasticizing agent master batch be POE, talcum powder, maleic anhydride and acrylic resin blended become.
6. the preparation method of the bright and clean long glass flame-proof toughening polypropylene intermingling material of height according to claim 5, it is characterised in that, described talcum powder size is 6000-7000 order, and the melting index of acrylic resin is 12-18g/min; POE is Dupont Tao Shi POE8999.
7. the preparation method of the bright and clean long glass flame-proof toughening polypropylene intermingling material of height according to claim 5, it is characterized in that, the preparation method of described coordination plasticizing agent master batch is: be that the ratio of 6:4:1:3 adds in homogenizer successively taking mass ratio by POE, polypropylene, maleic anhydride and talcum powder, stir 15min, then it is warming up to 50 DEG C to continue to stir 2h, leaving standstill cooling, then blend is placed in twin screw extruder, namely extruding pelletization obtains coordination plasticizing agent master batch.
8. the preparation method of the bright and clean long glass flame-proof toughening polypropylene intermingling material of height according to claim 1, it is characterised in that, described chainextender is dendritic macromole rheology modifier, and the fine agent of anti-floating is EVA.
9. the preparation method of the bright and clean long glass flame-proof toughening polypropylene intermingling material of height according to claim 8, it is characterized in that, described dendritic macromole rheology modifier is the daiamid dendritic macromole in 1-3 generation, average relative molecular mass is 5200-11500, and described EVA average molecular mass is 5000-8000.
10. the high bright and clean long glass flame-proof toughening polypropylene intermingling material that preparation method according to claim 1-9 any one obtains.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106957484A (en) * | 2017-04-11 | 2017-07-18 | 刘明新 | A kind of high-impact RPP and preparation method thereof |
| CN110577688A (en) * | 2019-08-01 | 2019-12-17 | 安徽万安环境科技股份有限公司 | special material for reinforcing alkali-free long glass fiber type PE (polyethylene) pipe |
| CN110734605A (en) * | 2019-10-17 | 2020-01-31 | 温州鑫泰新材料股份有限公司 | high-impact polypropylene flame-retardant insulation sheet |
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| CN106957484A (en) * | 2017-04-11 | 2017-07-18 | 刘明新 | A kind of high-impact RPP and preparation method thereof |
| CN110577688A (en) * | 2019-08-01 | 2019-12-17 | 安徽万安环境科技股份有限公司 | special material for reinforcing alkali-free long glass fiber type PE (polyethylene) pipe |
| CN110734605A (en) * | 2019-10-17 | 2020-01-31 | 温州鑫泰新材料股份有限公司 | high-impact polypropylene flame-retardant insulation sheet |
| CN110734605B (en) * | 2019-10-17 | 2022-04-01 | 温州鑫泰新材料股份有限公司 | High-impact polypropylene flame-retardant insulating sheet |
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| Publication number | Publication date |
|---|---|
| CN105670125B (en) | 2017-12-15 |
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Denomination of invention: High-smoothness long-glass-fiber flame-retardant toughened polypropylene blend material and preparation method thereof Effective date of registration: 20180806 Granted publication date: 20171215 Pledgee: Industrial Commercial Bank of China Ltd Taizhou Huangyan branch Pledgor: Starway International Home-Living Co., Ltd. Registration number: 2018330000214 |
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