CN116041862A - High-performance low-condensation atomization modified polypropylene and preparation method thereof - Google Patents
High-performance low-condensation atomization modified polypropylene and preparation method thereof Download PDFInfo
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- CN116041862A CN116041862A CN202211704892.4A CN202211704892A CN116041862A CN 116041862 A CN116041862 A CN 116041862A CN 202211704892 A CN202211704892 A CN 202211704892A CN 116041862 A CN116041862 A CN 116041862A
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- modified polypropylene
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- -1 polypropylene Polymers 0.000 title claims abstract description 35
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 33
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 33
- 238000009833 condensation Methods 0.000 title claims abstract description 32
- 238000000889 atomisation Methods 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 32
- 230000005494 condensation Effects 0.000 claims abstract description 22
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 16
- 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 abstract description 12
- 239000012767 functional filler Substances 0.000 claims abstract description 12
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 11
- 239000003463 adsorbent Substances 0.000 claims abstract description 10
- 239000000314 lubricant Substances 0.000 claims abstract description 10
- 239000004698 Polyethylene Substances 0.000 claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- 229920000573 polyethylene Polymers 0.000 claims abstract description 7
- 239000012745 toughening agent Substances 0.000 claims abstract description 6
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 10
- 229920001903 high density polyethylene Polymers 0.000 claims description 7
- 239000004700 high-density polyethylene Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 5
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 5
- 235000019341 magnesium sulphate Nutrition 0.000 claims description 5
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- 150000007970 thio esters Chemical class 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 4
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 claims description 4
- 239000000155 melt Substances 0.000 claims description 4
- 229920001577 copolymer Polymers 0.000 claims description 3
- PWWSSIYVTQUJQQ-UHFFFAOYSA-N distearyl thiodipropionate Chemical group CCCCCCCCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCCCCCCCC PWWSSIYVTQUJQQ-UHFFFAOYSA-N 0.000 claims description 3
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000391 magnesium silicate Substances 0.000 claims description 3
- 229910052919 magnesium silicate Inorganic materials 0.000 claims description 3
- 235000019792 magnesium silicate Nutrition 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 3
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 2
- 239000008116 calcium stearate Substances 0.000 claims description 2
- 235000013539 calcium stearate Nutrition 0.000 claims description 2
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims description 2
- 235000019359 magnesium stearate Nutrition 0.000 claims description 2
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 19
- 238000012360 testing method Methods 0.000 abstract description 13
- 239000000126 substance Substances 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 6
- 230000014759 maintenance of location Effects 0.000 abstract description 4
- 238000001556 precipitation Methods 0.000 abstract description 4
- 239000011521 glass Substances 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 239000000806 elastomer Substances 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012854 evaluation process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 239000012462 polypropylene substrate Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- 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
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/14—Copolymers of propene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses high-performance low-condensation atomization modified polypropylene and a preparation method thereof, wherein the modified polypropylene comprises the following components in percentage by mass: 50-80% of polypropylene, 1-15% of toughening agent, 0-10% of polyethylene, 5-20% of talcum powder, 1-10% of functional filler, 0.2-1% of lubricant, 0.1-0.5% of antioxidant and 0.2-1% of adsorbent. According to the invention, the special functional filler is added into the formula, so that the consumption of talcum powder is reduced, the mechanical property, heat resistance and dimensional stability of the material can be effectively maintained and even greatly improved, and meanwhile, the optimized combination of the functional filler, the adsorbent, the lubricant, the antioxidant, the polyethylene and the like can be used for effectively reducing the precipitation of small molecular substances of the material in the high-temperature environment production and use processes, so that the glossiness retention rate of the prepared part can be more than 90% in the SAEJ 1756 glossiness test condensation atomization.
Description
Technical Field
The invention relates to high-performance low-condensation atomization modified polypropylene and a preparation method thereof.
Background
The modified plastic can be widely applied to systems such as engine cabins, bumpers, instrument panels, upright posts, door panels, sunroof roofs and the like in the field of automobile manufacturing, and is typified by modified polypropylene (PP) because of excellent cost performance, mechanical properties, chemical resistance and processability, and is widely applied to the preparation of automobile interior and exterior parts.
In recent years, with the development of the automobile industry, higher and higher requirements are put on the modified plastics for automobiles, including color diversification, improvement of mechanical properties, optimization of emission properties and the like. The improvement of mechanical properties can meet the requirement of more diversification of parts, such as light weight, thin wall, weight reduction and the like. The emission performance is optimized for better driving experience of consumers, such as smell optimization can make people feel pleasant, and condensation atomization is because automotive interior materials (such as surface leather, interior textiles, structural plastics and the like) contain volatile substances, and the volatile substances can condense when encountering colder car window surfaces, so that driving vision of a driver is influenced, and potential safety hazards can be caused.
The characterization of condensation atomization basically comprises two methods, namely a weight method, wherein under certain test conditions, gas heated by a sample in a atomizing cup is condensed on low-temperature aluminum foil, and the weight of atomized condensate of the sample is calculated by weighing the weight change of the aluminum foil before and after the aluminum foil. The second method is a glossiness method, under certain test conditions, the sample is heated and then the micromolecular substances begin to volatilize, the volatilized gases are condensed on the glass plate cooled by the cooling cavity, the glossiness values before and after the condensation of the glass plate are compared and calculated, and meanwhile the appearance of the glass plate is evaluated. At present, most automobile main engine factories adopt a gram weight method, but the film forming blocking performance is not evaluated because the gram weight method mainly focuses on the weight of condensate, so that all the evaluations related to condensation atomization adopt a glossiness method, and meanwhile, the surface fogging condition of a glass plate is evaluated.
In order to meet the low haze requirement of automotive interior parts, many people also research the preparation process, raw material selection, additives and the like. However, these methods may be focused on gram weights or numerical improvements, and the appearance of the surface of the glass sheet is not evaluated, which is not well in line with the performance requirements (no surface condensation affects the line of sight, etc.) in the actual use process, and the gloss value is not clearly equivalent to the appearance evaluation of the glass sheet. When the talcum powder is modified by the CN 109206744, the atomization of the material is reduced by optimizing a low-atomization polypropylene material and adding an adsorbent, so that the low-atomization effect in the gram weight method test is realized. The patent is filled with talcum powder only, has no description of the influence of other fillers on atomization performance, is limited by the raw material supply or various performance requirements of the formula, and has less selectivity and greater difficulty in the design of the formula after the polypropylene substrate is limited.
Disclosure of Invention
Based on the above, the invention aims to provide high-performance low-condensation atomization modified polypropylene and a preparation method thereof. The method is simple to operate, the use of talcum powder filler is reduced through the functional filler, the excellent mechanical property of the modified material is maintained by balancing the mixture ratio with other materials, the extremely excellent level can be shown in the aspect of condensation atomization, the problem that the prepared part has the glossiness retention rate of more than 90% in the process of testing the condensation atomization by using the SAEJ 1756 glossiness method, meanwhile, the surface of the glass plate for testing is clean, the phenomena of oil film, oil drop and crystallization are avoided, and the problems of dispersing small molecular substances and blocking the sight caused by fogging on automobile glass in the long-term use process of the automobile ornament can be prevented.
The invention aims at realizing the following technical scheme:
the high-performance low-condensation atomization modified polypropylene is prepared from the following raw materials in percentage by mass:
the polypropylene is block-copolymerized polypropylene, is apparent in particle shape, has a melt flow rate of 10-60g/10min, and has a notched impact strength of > 3kJ/m at room temperature 2 。
The appearance of the polyethylene high-density polyethylene is granular, and the melt flow rate is 5-10g/10min.
The toughening agent is an ethylene-octene copolymer.
The functional filler is basic magnesium sulfate whisker, the diameter of the whisker is less than 1um, and the length is 10-30um.
The lubricant is one or a combination of zinc stearate, calcium stearate and magnesium stearate.
The antioxidant is at least one of thioester antioxidants selected from hindered phenol and semi-hindered phenol, and more specifically, the thioester antioxidant is DSTP.
The adsorbent is one or a combination of magnesium silicate and montmorillonite.
The preparation method of the high-performance low-condensation atomization modified polypropylene comprises the following steps:
(1) Weighing stearate and whisker according to the material proportion, and uniformly stirring the whisker and the stearate lubricant. And (2) uniformly blending the modified whisker obtained in the step (1) with 5-10 parts of polyethylene, and adding the mixture through a side feeding port. The rest materials enter through a main feeding port of the double-screw extruder, are mixed with the materials entering through a side feeding port after being melted, are extruded, granulated, dried and the like to obtain a finished product material; the technological parameters of the twin-screw extruder are as follows: the temperature of the first area is 60-180 ℃, the temperature of the second area is 180-210 ℃, and the extrusion temperature is 200+/-10 ℃.
According to the invention, the special functional filler is added into the formula, so that the consumption of talcum powder is reduced, the mechanical property, heat resistance and dimensional stability of the material can be effectively maintained and even greatly improved, and meanwhile, the optimized combination of the functional filler, the adsorbent, the lubricant, the antioxidant, the polyethylene and the like can be used for effectively reducing the precipitation of small molecular substances of the material in the high-temperature environment production and use processes, so that the glossiness retention rate of the prepared part can be more than 90% in the SAEJ 1756 glossiness test condensation atomization. Compared with the common talcum powder modified PP material, the preparation of the low-condensation atomization modified PP material is realized in the aspects of formula design optimization, auxiliary agent selection and the like, and the preparation method has the advantages of excellent mechanical property, high condensation atomization resistance, simple production process, easiness in realization and the like, and can be widely applied to the preparation of automobile interior trim parts.
Detailed description of the preferred embodiments
The present invention will be described with reference to the following specific examples, but the present invention is not limited to these examples
Examples
The main raw materials used in the examples and comparative examples are as follows:
the polypropylene resin is copolymer polypropylene EP648U;
the polyethylene resin is high-density polyethylene HDPE 8008;
the mesh number of talcum powder is 5000 mesh;
the toughening agent is a ceramic LC168;
the basic magnesium sulfate serving as a functional filler is Yingkoukang such as WS-6VS;
the processing aid is zinc stearate;
in the embodiment, the antioxidants are hindered phenol main antioxidants 1010 and thioester auxiliary antioxidants DSTP, and the proportion is 1:1, a step of; the antioxidant in the comparative example is 1010:168=1:1;
the adsorbent is magnesium silicate;
the formulations of the examples and comparative examples are shown in Table 1 below:
TABLE 1 formulation ratio of each sample
Examples and comparative examples were molded into standard bars by an injection molding machine after extrusion blending, and tested according to the standard. The test standard is that the density is tested according to ISO 1183; tensile strength according to ISO 527 test, test speed 50mm/min; flexural modulus was measured according to SO178 at a speed of 2mm/min and a span of 64mm; notched impact strength at 23℃according to ISO 179; the fogging properties were measured according to SAEJ 1756, and the glass panels for the test were evaluated for appearance.
The properties of examples 1-5 and comparative example 1 are shown in Table 2 below;
TABLE 2 comparison of formulations and Properties in the samples
According to the embodiments 1-5 and the comparative example 1, through the optimized combination of the functional filler, the adsorbent, the lubricant, the antioxidant, the polyethylene toughening agent and the like, on the basis of maintaining or even improving the original extrusion mechanical property, the precipitation of small molecular substances in the production and use processes of the material in a high-temperature environment can be effectively reduced, the retention rate of the condensation and atomization glossiness can be more than 90% in the SAEJ 1756 glossiness test, and meanwhile, the oil film oil drop formation and crystallization phenomenon in the appearance evaluation process are avoided.
In example 1 grade 1, the combination of the lubricant, the antioxidant and the adsorbent can reduce the friction heating effect of the material in the production process, reduce the preliminary decomposition of the material caused by heat aggregation, timely decompose and degrade peroxide generated after the preliminary decomposition of the material, adsorb small molecular substances, greatly improve the value of condensation atomization by a glossiness method, and most importantly, completely maintain the smoothness of the surface of the glass plate after the test.
Examples 1-3 and comparative example 1, the anti-fogging effect of the high density polyethylene and the elastomer is significantly more excellent than that of the PP substrate, and the basic magnesium sulfate whisker is also significantly more advantageous than the ore-mined talcum powder in anti-condensation and atomization precipitation. Therefore, the optimized combination of the functional filler and the HDPE/elastomer can directly improve the anti-atomization condensing effect of the whole material in the formula. Meanwhile, because of the activation of stearate on the basic magnesium sulfate whisker and the excellent performance of the whisker, the improvement of the overall proportion of the whisker material can greatly improve the flexural modulus, tensile strength and the like of the material, and meanwhile, the toughness is kept unchanged.
Compared with comparative example 1, in example 2 and example 5, the talcum powder is reduced, the proportion of HDPE, elastomer and whisker is improved, the numerical value and apparent evaluation grade of condensation atomization of a glossiness method can be greatly improved, and meanwhile, the mechanical properties of the high-strength high-toughness alloy are improved in different degrees in terms of tensile strength and impact strength. Even more, because whisker material itself compares with talcum powder density little, its modified material presents the reduction trend in whole density, accords with the requirement of material to automobile parts lightweight design more.
In the embodiment, the types of the PP base materials can be replaced or matched according to actual demands, and meanwhile, the high requirements of the whole materials on condensation and atomization are met according to the proportion change of other substances and the like.
Claims (10)
1. A high-performance low-condensation atomization modified polypropylene is characterized in that: the material is prepared from the following raw materials in percentage by mass:
50-80% of polypropylene;
0-10% of polyethylene;
5-20% of talcum powder;
1-15% of a toughening agent;
1-10% of functional filler;
0.2-1% of lubricant;
0.1 to 0.5 percent of antioxidant;
0.2-1% of adsorbent;
2. the high performance low condensation atomized modified polypropylene according to claim 1, wherein: the polypropylene is block-copolymerized polypropylene, is apparent in particle shape, has a melt flow rate of 10-60g/10min, and has a notched impact strength of > 3kJ/m at room temperature 2 。
3. The high performance low condensation atomized modified polypropylene according to claim 1, wherein: the appearance of the polyethylene high-density polyethylene is granular, and the melt flow rate is 5-10g/10min.
4. The high performance low condensation atomized modified polypropylene according to claim 1, wherein: the toughening agent is an ethylene-octene copolymer.
5. The high performance low condensation atomized modified polypropylene according to claim 1, wherein: the functional filler is basic magnesium sulfate whisker, the diameter of the whisker is less than 1um, and the length is 10-30um.
6. The high performance low condensation atomized modified polypropylene according to claim 1, wherein: the lubricant is one or a combination of zinc stearate, calcium stearate and magnesium stearate.
7. The high performance low condensation atomized modified polypropylene according to claim 1, wherein: the antioxidant is at least one of the thioester antioxidants of hindered phenol and semi-hindered phenol.
8. The high performance low condensation atomized modified polypropylene according to claim 7, wherein: the thioester antioxidant is DSTP.
9. The high performance low condensation atomized modified polypropylene according to claim 1, wherein: the adsorbent is one or a combination of magnesium silicate and montmorillonite.
10. The process for preparing a high performance low condensing atomized modified polypropylene according to any of claims 1-9, comprising the steps of:
(1) Weighing stearate and whisker according to the material proportion, and uniformly stirring the whisker and stearate lubricant;
(2) And (3) uniformly blending the modified whisker obtained in the step (1) with 5-10 parts of polyethylene, and adding the mixture through a side feeding port. The rest materials enter through a main feeding port of the double-screw extruder, are mixed with the materials entering through a side feeding port after being melted, are extruded, granulated, dried and the like to obtain a finished product material; the technological parameters of the twin-screw extruder are as follows: the temperature of the first area is 60-180 ℃, the temperature of the second area is 180-210 ℃, and the extrusion temperature is 200+/-10 ℃.
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| CN202211704892.4A CN116041862A (en) | 2022-12-29 | 2022-12-29 | High-performance low-condensation atomization modified polypropylene and preparation method thereof |
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| CN202211704892.4A CN116041862A (en) | 2022-12-29 | 2022-12-29 | High-performance low-condensation atomization modified polypropylene and preparation method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102649854A (en) * | 2011-02-23 | 2012-08-29 | 中国科学院化学研究所 | Polypropylene composition and preparation method thereof |
| CN107177106A (en) * | 2017-05-13 | 2017-09-19 | 合肥会通新材料有限公司 | A kind of novel environment friendly automotive trim is with material modified and preparation method thereof |
| CN114044966A (en) * | 2021-10-21 | 2022-02-15 | 金发科技股份有限公司 | Anti-fogging polypropylene composition and preparation method and application thereof |
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- 2022-12-29 CN CN202211704892.4A patent/CN116041862A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102649854A (en) * | 2011-02-23 | 2012-08-29 | 中国科学院化学研究所 | Polypropylene composition and preparation method thereof |
| CN107177106A (en) * | 2017-05-13 | 2017-09-19 | 合肥会通新材料有限公司 | A kind of novel environment friendly automotive trim is with material modified and preparation method thereof |
| CN114044966A (en) * | 2021-10-21 | 2022-02-15 | 金发科技股份有限公司 | Anti-fogging polypropylene composition and preparation method and application thereof |
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