CN106243500A - The preparation method of a kind of polypropylene modification composite and product thereof - Google Patents
The preparation method of a kind of polypropylene modification composite and product thereof Download PDFInfo
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- CN106243500A CN106243500A CN201610694836.5A CN201610694836A CN106243500A CN 106243500 A CN106243500 A CN 106243500A CN 201610694836 A CN201610694836 A CN 201610694836A CN 106243500 A CN106243500 A CN 106243500A
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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
- C08K9/00—Use of pretreated ingredients
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- C—CHEMISTRY; METALLURGY
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
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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
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- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
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- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
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- C08K2003/3045—Sulfates
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Abstract
The invention provides the preparation method of a kind of polypropylene modification composite, comprise the following steps: by the slurry of wollastonite in powder water furnishing 50% 60%, add sodium stearate；It is (4 6) in mass ratio by barium sulfate and titanium dioxide: 1 is made into the composite mortar of 65 70% with water, adds sodium stearate and silane coupler；By the titanium dioxide barium sulfate composite mortar wet grinding for preparing to 3,000 4000 mesh；The wollastonite slurry prepared adds the titanium dioxide barium sulfate composite mortar for preparing, and titanium dioxide barium sulfate is (10 12) with the mass ratio of wollastonite: 1, then adds silane coupler and be coated with；Composite mortar is dried to obtain composite dry powder；Composite dry powder is broken up depolymerization, then through cyclone classified process, collects the powder body of 2,500 3000 mesh.The present invention can obtain a kind of composite products with high durable, high glaze, high chemical stability.
Description
[technical field]
The present invention relates to modified filler field, particularly relate to a kind of polypropylene modification composite preparation method and
Product.
[background technology]
Polypropylene (PP) is one of five big general-purpose plastics, but polypropylene disadvantage is that property is crisp, impact strength is low, particularly
Low temperature impact properties is poor, and dimensional accuracy is low, rigidity is not enough, weatherability is poor, limits its range of application and function
Development.In order to promote polyacrylic properties, need to be modified processing to it.The modification side at present polypropylene used
Formula is mainly chemical modification and physical modification, and chemical modification mainly changes polyacrylic molecule by the mode such as copolymerization, grafting
Structure changes its performance, physical modification be then by being blended, strengthening, the mode such as filling change polyacrylic molecule aggregated structure
And do not change its molecular structure to reach the purpose of improving performance.Chemical modification and physical modification can improve polyacrylic property
Can, but chemical modification suffers from the restriction of many conditions, and needing to do substantial amounts of test could be successful, and modified cost is wanted
Height, and physical modification have by comparison produce effects fast, the advantages such as test is simple.In physical modification means, filling-modified be
Polypropylene adds inorganic or organic filler, gives the performance of the filler that polypropylene molecule adds, thus reach modified mesh
, filling-modified is the means that in polypropylene or even modifying plastics, an application is quite varied, and it not only can improve each of plastics
Item performance can also play the effect reducing cost simultaneously.
What inorganic material filled modified polypropylene was conventional has calcium carbonate, Pulvis Talci, silicon dioxide, barium sulfate, Kaolin, cloud
Mother, wollastonite etc..In common inorganic modified technique, usually add a kind of or be individually added into several different filler lead to
Cross the techniques such as melt blending and polypropylene is filled with modification.Add a kind of filler often inconspicuous to polyacrylic performance boost
Or imperfection, different fillers are individually added into and often can not organically combine between filler or between filler and resin, cause gathering
Propylene modified effect is poor, and modified Properties of Polypropylene promotes inconspicuous.
[summary of the invention]
For drawbacks described above of the prior art, it is an object of the invention to provide a kind of polypropylene modification composite
Preparation method and product, it is possible to obtain a kind of composite reinforcing material being applicable to polypropylene modification.
The technical scheme is that
The preparation method of a kind of polypropylene modification composite, it is characterised in that comprise the following steps:
(1) by the slurry of wollastonite in powder use water furnishing mass concentration 50%-60% of 400-600 mesh, sodium stearate is added
As dispersant；
(2) by the titanium dioxide of the barium sulfate of 400-600 mesh and 300-400 mesh in mass ratio for (4-6): 1 is made into matter with water
The composite mortar of amount concentration 65-70%, adds sodium stearate and silane coupler as dispersant and coating material；
(3) the titanium dioxide barium sulfate composite mortar prepared in (2) is fed in Wet vertical grinder wet grinding extremely
3000-4000 mesh；
(4) the wollastonite slurry prepared in (1) is fed in Wet vertical grinder, add the titanium that will prepare in (3)
White lead-barium sulfate composite mortar, titanium dioxide-barium sulfate is (10-12) with the mass ratio of wollastonite: 1, then adds silane coupler
It is coated with, mean diameter D of wet grinding to wollastonite particles50For 2.0-2.5 μm；
(5) composite mortar obtained in (4) feeding flash dryer, hot wind inlet temperature controls at 370-390 DEG C,
To composite dry powder；
(6) the composite dry powder that (5) obtain is broken up depolymerization, then through cyclone classified process, collect 2500-3000 purpose
Powder body obtains composite products.
Wollastonite, titanium dioxide and barium sulfate are combined by composite by mechanochemical method, make titanium
White lead and barium sulfate is evenly distributed on wollastonite whisker, obtains a kind of having high durable, high glaze, high chemical stability
Composite reinforcing material.In composite, wollastonite has good fiber structure, higher draw ratio and corrosion resistance, can improve
Polyacrylic stretch-proof and the mechanical strength such as counter-bending, the titanium dioxide after surface is modified can provide good heat-resisting, weatherability
With high reducing power, high-purity ultra-fine native sulfate of barium crystal formation is fine and close, and chemical stability is splendid, it is possible to increase polypropylene is good
Surface gloss and processing fluidity.
Further, sodium stearate addition is wollastonite in powder quality the 2 ‰-5 ‰ of above-mentioned steps (1), to improve slurry
The dispersibility of material and grindability.
Further, the sodium stearate addition of above-mentioned steps (2) is barium sulfate and the 3-5% of titanium dioxide quality sum,
To improve dispersibility and the grindability of slurry.
Further, the silane coupler of above-mentioned steps (2) is barium sulfate and the 2-4 ‰ of titanium dioxide quality sum, with reality
Now to barium sulfate and the silicone covering on titanium dioxide surface.
Further, the silane coupler of above-mentioned steps (2) is wollastonite, barium sulfate and the 1-of titanium dioxide quality sum
2 ‰, to realize the cladding to composite material surface.
Further, the mill speed of above-mentioned Wet vertical grinder is 200-250r/min.
Further, above-mentioned titanium dioxide is Rutile type titanium dioxide.Divided titanium dioxide is rutile-type and anatase titanium dioxide, rutile
The refractive index of type is 2.76, anatase titanium dioxide for 2.55, use the glossiness prepared of rutile-type higher, rutile-type is resistance to simultaneously
Time property and chemical-resistant stability are more preferable, and the use environment being adapted to is more extensive.
The product of the preparation method of a kind of polypropylene modification composite, it is characterised in that on the surface of wollastonite
Possessing the compound coating layer that titanium dioxide is formed with barium sulfate, the surface of described titanium dioxide and barium sulfate is provided with silicone covering
Layer.
Further, the clad ratio of the compound coating layer of above-mentioned wollastonite is 98-100%, described titanium dioxide and barium sulfate
The clad ratio of silicone covering layer be 98-100%.Use organosilicon clad can with greatest benefit by three kinds of fillers it
Between the compatibility improve, and clad ratio is the highest, and its compatible effect can be the best, the most more can withdraw deposit and play each particle
Big effect.
Further, the draw ratio of above-mentioned wollastonite is (15-20): 1.The length of wollastonite is the biggest through ratio, it is possible to achieve
Steric hindrance space between two granules can be the biggest, namely can compound coating layer that preferably titanium dioxide powder and barium sulfate are formed
Preferably it is coated on the surface of wollastonite, forms the covered effect of continuous uniform.
The present invention has a following useful technique effect:
Wollastonite, titanium dioxide and barium sulfate are combined by the present invention by mechanochemical method, make titanium white
Powder and barium sulfate are evenly distributed on wollastonite whisker, obtain a kind of having high durable, high glaze, the answering of high chemical stability
Close reinforcing material；The refractive index of single barium sulfate is 1.67, and the refractive index of single wollastonite is 1.63, the refraction of this product
Rate is more than or equal to 2, and glossiness improves far away；This product select barium sulfate, wollastonite can acid and alkali-resistance, and wollastonite tool
There are good fiber structure, higher draw ratio and corrosion resistance, polyacrylic stretch-proof and the mechanical strength such as counter-bending can be improved,
Titanium dioxide after surface is modified can provide good heat-resisting, weatherability and high reducing power, high-purity ultra-fine barium sulfate crystal formation
Densification, chemical stability is splendid, it is possible to increase the good surface gloss of polypropylene and processing fluidity, uses this product to fill
Modified polypropene, its heat resisting temperature can improve 20-30 DEG C, tests in the thermo-oxidative ageing of 120 DEG C, 1000 minutes is tested, its system
The batten that product color is prepared with pure titanium dioxide is consistent, without the change of color.
[accompanying drawing explanation]
Fig. 1 is the flow chart of steps of the present invention.
[detailed description of the invention]
Below in conjunction with specific embodiment, the present invention is described further.
Embodiment provided below also is not used to limit the scope that the present invention is contained, and described step is not to use
To limit its execution sequence.Those skilled in the art combine existing common knowledge and are the present invention conspicuously improved, also fall
Within entering the protection domain of application claims.
Embodiment one
The preparation method of a kind of polypropylene modification composite, it is characterised in that comprise the following steps:
(1) by the slurry of wollastonite in powder use water furnishing mass concentration 50%-60% of 400-600 mesh, while with slurry
Addition sodium stearate is as dispersant, and addition is the 2 ‰ of wollastonite dry powder quality, to improve the dispersibility of slurry and can grind
Property.
(2) barium sulfate of 400-600 mesh and the Rutile type titanium dioxide of 300-400 mesh are joined for 4:1 water in mass ratio
Become the composite mortar of 65% mass concentration, be simultaneously introduced the sodium stearate of 3% as dispersant, add the D-7080 silane of 2 ‰
Coupling agent is as dispersant and coating material.
(3) the titanium dioxide barium sulfate composite mortar prepared in (2) is fed Wet vertical agitator mill by membrane pump
In, mill speed 200r/min, control the content of below slurry 2 μm higher than 95%.Ultramicrofine barium sulfate and rutile type titanium
White lead lattice in process of lapping constantly ruptures, and surface can constantly increase, and mutually adsorbs between granule, in the effect of silane coupler
Under complete jointly to be coated with, form titanium dioxide barium sulfate composite granule, composite mortar fed in slurry can stirring and stores stand-by.
(4) the wollastonite slurry prepared in (2) is fed in Wet vertical grinder by membrane pump, mill speed
200r/min, adjusts the rotating speed of membrane pump, controls wollastonite particles particle diameter, and wollastonite will prepare in (3) while grinding
Titanium dioxide-barium sulfate composite mortar, by feeding in vertical mixing mill in the lump with the amount that wollastonite mass ratio is 10:1, adds simultaneously again
The D-7080 silane coupler adding 1 ‰ carries out further organic coating, thus obtains final composite material sizing agent.
(5) by membrane pump, the composite mortar obtained in (4) being fed flash dryer, hot wind inlet temperature controls
380 DEG C, obtain composite dry powder；
(6) the composite dry powder economy-combat (5) obtained dissipates machine and breaks up again through cyclone classified process after depolymerization, will reunite not
Conforming particle returns depolymerization in depolymerizer, and conforming particle enters packaging system.
A kind of product obtained according to said method, possesses titanium dioxide and answering that barium sulfate is formed on the surface of wollastonite
Closing clad, the surface of described titanium dioxide and barium sulfate is provided with silicone covering layer；The compound coating layer of above-mentioned wollastonite
Clad ratio is 98-100%, and the clad ratio of the silicone covering layer of described titanium dioxide and barium sulfate is 98-100%；Above-mentioned silicon ash
The draw ratio of stone is (15-20): 1.The refractive index of this product is 2.12, and glossiness improves far away；Use this product to fill to change
Property polypropylene, its heat resisting temperature can improve 20-30 DEG C, 120 DEG C, the thermo-oxidative ageing of 1000 minutes experiment is tested, its goods
The batten that color is prepared with pure titanium dioxide is consistent, without the change of color.
The coherent detection of product added such as following table:
Embodiment two
The preparation method of a kind of polypropylene modification composite, it is characterised in that comprise the following steps:
(3) by the slurry of wollastonite in powder use water furnishing mass concentration 50%-60% of 400-600 mesh, while with slurry
Addition sodium stearate is as dispersant, and addition is the 3 ‰ of wollastonite dry powder quality, to improve the dispersibility of slurry and can grind
Property.
(4) barium sulfate of 400-600 mesh and the Rutile type titanium dioxide of 300-400 mesh are joined for 5:1 water in mass ratio
Become the composite mortar of 68% mass concentration, be simultaneously introduced the sodium stearate of 3% as dispersant, add the D-7080 silane of 2 ‰
Coupling agent is as dispersant and coating material.
(3) the titanium dioxide barium sulfate composite mortar prepared in (2) is fed Wet vertical agitator mill by membrane pump
In, mill speed 200r/min, control the content of below slurry 2 μm higher than 95%.Ultramicrofine barium sulfate and rutile type titanium
White lead lattice in process of lapping constantly ruptures, and surface can constantly increase, and mutually adsorbs between granule, in the effect of silane coupler
Under complete jointly to be coated with, form titanium dioxide barium sulfate composite granule, composite mortar fed in slurry can stirring and stores stand-by.
(4) the wollastonite slurry prepared in (2) is fed in Wet vertical grinder by membrane pump, mill speed
200r/min, adjusts the rotating speed of membrane pump, controls wollastonite particles particle diameter, and wollastonite will prepare in (3) while grinding
Titanium dioxide-barium sulfate composite mortar, by feeding in vertical mixing mill in the lump with the amount that wollastonite mass ratio is 11:1, adds simultaneously again
The D-7080 silane coupler adding 1.5 ‰ carries out further organic coating, thus obtains final composite material sizing agent.
(5) by membrane pump, the composite mortar obtained in (4) being fed flash dryer, hot wind inlet temperature controls
370 DEG C, obtain composite dry powder；
(6) the composite dry powder economy-combat (5) obtained dissipates machine and breaks up again through cyclone classified process after depolymerization, will reunite not
Conforming particle returns depolymerization in depolymerizer, and conforming particle enters packaging system.
A kind of product obtained according to said method, possesses titanium dioxide and answering that barium sulfate is formed on the surface of wollastonite
Closing clad, the surface of described titanium dioxide and barium sulfate is provided with silicone covering layer；The compound coating layer of above-mentioned wollastonite
Clad ratio is 98-100%, and the clad ratio of the silicone covering layer of described titanium dioxide and barium sulfate is 98-100%；Above-mentioned silicon ash
The draw ratio of stone is (15-20): 1.The refractive index of this product is 2.11, and glossiness improves far away；Use this product to fill to change
Property polypropylene, its heat resisting temperature can improve 20-30 DEG C, 120 DEG C, the thermo-oxidative ageing of 1000 minutes experiment is tested, its goods
The batten that color is prepared with pure titanium dioxide is consistent, without the change of color.The coherent detection of product added such as following table:
| Detection project | Testing result |
| CaSiO in wollastonite3Content % | 92.4 |
| TiO in titanium dioxide2Content % | 94.5 |
| BaSO in native sulfate of barium4Content % | 97.2 |
| Wollastonite draw ratio | 19:1 |
| Wollastonite D50μm | 3.7 |
| Coupling agent clad ratio % | 98.3 |
| Barium sulfate cladding titanium dioxide clad ratio % | 98.1 |
| Titanium dioxide and barium sulfate coated Si lime stone clad ratio % | 98.7 |
Embodiment three
The preparation method of a kind of polypropylene modification composite, it is characterised in that comprise the following steps:
(5) by the slurry of wollastonite in powder use water furnishing mass concentration 50%-60% of 400-600 mesh, while with slurry
Addition sodium stearate is as dispersant, and addition is the 5 ‰ of wollastonite dry powder quality, to improve the dispersibility of slurry and can grind
Property.
(6) barium sulfate of 400-600 mesh and the Rutile type titanium dioxide of 300-400 mesh are joined for 6:1 water in mass ratio
Become the composite mortar of 70% mass concentration, be simultaneously introduced the sodium stearate of 3% as dispersant, add the D-7080 silane of 2 ‰
Coupling agent is as dispersant and coating material.
(3) the titanium dioxide barium sulfate composite mortar prepared in (2) is fed Wet vertical agitator mill by membrane pump
In, mill speed 250r/min, control the content of below slurry 2 μm higher than 98%.Ultramicrofine barium sulfate and rutile type titanium
White lead lattice in process of lapping constantly ruptures, and surface can constantly increase, and mutually adsorbs between granule, in the effect of silane coupler
Under complete jointly to be coated with, form titanium dioxide barium sulfate composite granule, composite mortar fed in slurry can stirring and stores stand-by.
(4) the wollastonite slurry prepared in (2) is fed in Wet vertical grinder by membrane pump, mill speed
250r/min, adjusts the rotating speed of membrane pump, controls wollastonite particles particle diameter, and wollastonite will prepare in (3) while grinding
Titanium dioxide-barium sulfate composite mortar, by feeding in vertical mixing mill in the lump with the amount that wollastonite mass ratio is 12:1, adds simultaneously again
The D-7080 silane coupler adding 2 ‰ carries out further organic coating, thus obtains final composite material sizing agent.
(5) by membrane pump, the composite mortar obtained in (4) being fed flash dryer, hot wind inlet temperature controls
390 DEG C, obtain composite dry powder；
(6) the composite dry powder economy-combat (5) obtained dissipates machine and breaks up again through cyclone classified process after depolymerization, will reunite
Defective granule returns depolymerization in depolymerizer, and conforming particle enters packaging system.
A kind of product obtained according to said method, possesses titanium dioxide and answering that barium sulfate is formed on the surface of wollastonite
Closing clad, the surface of described titanium dioxide and barium sulfate is provided with silicone covering layer；The compound coating layer of above-mentioned wollastonite
Clad ratio is 98-100%, and the clad ratio of the silicone covering layer of described titanium dioxide and barium sulfate is 98-100%；Above-mentioned silicon ash
The draw ratio of stone is (15-20): 1.The refractive index of this product is 2.13, and glossiness improves far away；Use this product to fill to change
Property polypropylene, its heat resisting temperature can improve 20-30 DEG C, 120 DEG C, the thermo-oxidative ageing of 1000 minutes experiment is tested, its goods
The batten that color is prepared with pure titanium dioxide is consistent, without the change of color.The coherent detection of product added such as following table:
| Detection project | Testing result |
| CaSiO in wollastonite3Content % | 92.4 |
| TiO in titanium dioxide2Content % | 94.5 |
| BaSO in native sulfate of barium4Content % | 97.2 |
| Wollastonite draw ratio | 19:1 |
| Wollastonite D50μm | 3.0 |
| Coupling agent clad ratio % | 98.8 |
| Barium sulfate cladding titanium dioxide clad ratio % | 98.5 |
| Titanium dioxide and barium sulfate coated Si lime stone clad ratio % | 99.2 |
Claims (10)
1. the preparation method of a polypropylene modification composite, it is characterised in that comprise the following steps:
(1) by the slurry of wollastonite in powder use water furnishing mass concentration 50%-60% of 400-600 mesh, sodium stearate conduct is added
Dispersant；
(2) by the titanium dioxide of the barium sulfate of 400-600 mesh and 300-400 mesh in mass ratio for (4-6): 1 to be made into quality with water dense
The composite mortar of degree 65-70%, adds sodium stearate and silane coupler as dispersant and coating material；
(3) the titanium dioxide barium sulfate composite mortar prepared in (2) is fed in Wet vertical grinder wet grinding to 3000
～4000 mesh；
(4) the wollastonite slurry prepared in (1) is fed in Wet vertical grinder, add by (3) prepare titanium dioxide-
Barium sulfate composite mortar, the mass ratio of titanium dioxide-barium sulfate and wollastonite is (10-12): 1, then adds silane coupler and carry out
Cladding, mean diameter D of wet grinding to wollastonite particles50For 2.0-2.5 μm；
(5) composite mortar obtained in (4) feeding flash dryer, hot wind inlet temperature controls, at 370-390 DEG C, to be answered
Condensation material dry powder；
(6) the composite dry powder that (5) obtain is broken up depolymerization, then through cyclone classified process, collect the powder body of 2500-3000 mesh
Obtain composite products.
The preparation method of polypropylene modification composite the most according to claim 1, it is characterised in that described step
(1) sodium stearate addition is wollastonite in powder quality 2 ‰-5 ‰.
The preparation method of polypropylene modification composite the most according to claim 1, it is characterised in that described step
(2) sodium stearate addition is barium sulfate and the 3-5% of titanium dioxide quality sum.
The preparation method of polypropylene modification composite the most according to claim 1, it is characterised in that described step
(2) silane coupler is barium sulfate and the 2-4 ‰ of titanium dioxide quality sum.
The preparation method of polypropylene modification composite the most according to claim 1, it is characterised in that described step
(2) silane coupler is wollastonite, barium sulfate and the 1-2 ‰ of titanium dioxide quality sum.
The preparation method of polypropylene modification composite the most according to claim 1, it is characterised in that described wet method is stood
The mill speed of formula grinder is 200-250r/min.
The preparation method of polypropylene modification composite the most according to claim 1, it is characterised in that described titanium dioxide
For Rutile type titanium dioxide.
8. a product for the preparation method of the polypropylene modification composite as described in any one of claim 1-7, it is special
Levy and be, the surface of wollastonite possesses the compound coating layer that titanium dioxide is formed with barium sulfate, described titanium dioxide and barium sulfate
Surface be provided with silicone covering layer.
The product of the preparation method of polypropylene modification composite the most according to claim 8, it is characterised in that described
The clad ratio of the compound coating layer of wollastonite is 98-100%, the clad ratio of the silicone covering layer of described titanium dioxide and barium sulfate
For 98-100%.
The product of the preparation method of polypropylene modification composite the most according to claim 8, it is characterised in that institute
The draw ratio stating wollastonite is (15-20): 1.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111826000A (en) * | 2020-07-22 | 2020-10-27 | 江西广源化工有限责任公司 | High-specific-gravity reinforced composite powder filler and preparation method thereof |
| CN113174106A (en) * | 2020-12-14 | 2021-07-27 | 浙江金华威达日化包装实业有限公司 | PP material with high shading rate and high toughness and preparation method thereof |
| CN114539812A (en) * | 2022-03-02 | 2022-05-27 | 江西广源新材料有限公司 | Inorganic powder, preparation method thereof and reinforced and toughened polypropylene modified master batch |
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| CN111826000A (en) * | 2020-07-22 | 2020-10-27 | 江西广源化工有限责任公司 | High-specific-gravity reinforced composite powder filler and preparation method thereof |
| CN111826000B (en) * | 2020-07-22 | 2021-10-08 | 江西广源化工有限责任公司 | High-specific-gravity reinforced composite powder filler and preparation method thereof |
| CN113174106A (en) * | 2020-12-14 | 2021-07-27 | 浙江金华威达日化包装实业有限公司 | PP material with high shading rate and high toughness and preparation method thereof |
| CN114539812A (en) * | 2022-03-02 | 2022-05-27 | 江西广源新材料有限公司 | Inorganic powder, preparation method thereof and reinforced and toughened polypropylene modified master batch |
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| CN106243500B (en) | 2019-06-18 |
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Denomination of invention: Preparation method of composite material for polypropylene modification, and product thereof Effective date of registration: 20200304 Granted publication date: 20190618 Pledgee: Yongfeng sub branch of Jiujiang Bank Co., Ltd Pledgor: Jiangxi Guangyuan Chemical Co., Ltd. Registration number: Y2020980000463 |