CN112876776A - Matte low-shrinkage polypropylene and preparation method thereof - Google Patents
Matte low-shrinkage polypropylene and preparation method thereof Download PDFInfo
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- CN112876776A CN112876776A CN202110144948.4A CN202110144948A CN112876776A CN 112876776 A CN112876776 A CN 112876776A CN 202110144948 A CN202110144948 A CN 202110144948A CN 112876776 A CN112876776 A CN 112876776A
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- matte
- low
- shrinkage
- polypropylene
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- 239000004743 Polypropylene Substances 0.000 title claims abstract description 64
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 58
- -1 polypropylene Polymers 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 14
- 229920005989 resin Polymers 0.000 claims abstract description 14
- 239000011347 resin Substances 0.000 claims abstract description 14
- 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 13
- 239000002994 raw material Substances 0.000 claims abstract description 13
- 239000012745 toughening agent Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 12
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical group [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 6
- 239000008116 calcium stearate Substances 0.000 claims description 6
- 235000013539 calcium stearate Nutrition 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 239000003963 antioxidant agent Substances 0.000 claims description 4
- 230000003078 antioxidant effect Effects 0.000 claims description 4
- 229920001577 copolymer Polymers 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 2
- UAUDZVJPLUQNMU-UHFFFAOYSA-N Erucasaeureamid Natural products CCCCCCCCC=CCCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-UHFFFAOYSA-N 0.000 claims 1
- 239000006096 absorbing agent Substances 0.000 claims 1
- UAUDZVJPLUQNMU-KTKRTIGZSA-N erucamide Chemical compound CCCCCCCC\C=C/CCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-KTKRTIGZSA-N 0.000 claims 1
- 239000012760 heat stabilizer Substances 0.000 claims 1
- FATBGEAMYMYZAF-KTKRTIGZSA-N oleamide Chemical compound CCCCCCCC\C=C/CCCCCCCC(N)=O FATBGEAMYMYZAF-KTKRTIGZSA-N 0.000 claims 1
- FATBGEAMYMYZAF-UHFFFAOYSA-N oleicacidamide-heptaglycolether Natural products CCCCCCCCC=CCCCCCCCC(N)=O FATBGEAMYMYZAF-UHFFFAOYSA-N 0.000 claims 1
- 229920005633 polypropylene homopolymer resin Polymers 0.000 claims 1
- 239000001993 wax Substances 0.000 claims 1
- 238000001125 extrusion Methods 0.000 abstract description 6
- 238000002156 mixing Methods 0.000 abstract description 3
- 239000002861 polymer material Substances 0.000 abstract description 2
- 238000003756 stirring Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 6
- 239000000314 lubricant Substances 0.000 description 6
- 238000007334 copolymerization reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 description 3
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 3
- 229920006026 co-polymeric resin Polymers 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000003786 synthesis reaction Methods 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
- 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
- C08L23/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- 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
-
- C—CHEMISTRY; METALLURGY
- 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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- 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 belongs to the field of high polymer materials, and particularly relates to matte low-shrinkage polypropylene and a preparation method thereof. The invention provides a matte low-shrinkage polypropylene which is prepared from the following raw materials in percentage by weight: 48.5 to 83 percent of PP resin; 6-15% of a toughening agent; 10-35% of talcum powder; 1-1.5% of an auxiliary agent. The invention also provides a preparation method of the matte low-shrinkage polypropylene, which comprises the steps of stirring and mixing the raw materials uniformly at a high speed according to the weight fraction, and then carrying out melt extrusion in a double-screw extruder to obtain the matte low-shrinkage polypropylene. The PP provided by the invention has low shrinkage rate and is matte, and can be just applied to automotive interior parts.
Description
Technical Field
The invention belongs to the field of high polymer materials, and particularly relates to matte low-shrinkage polypropylene and a preparation method thereof.
Background
Polypropylene (PP) is one of the most widely used general-purpose plastics. The polypropylene has the advantages of low density, low price, excellent comprehensive performance and the like, but the polypropylene has large molding shrinkage, high brittleness and low notch impact strength, and is particularly serious at low temperature, so that the further popularization and application of the PP are limited.
A small amount of ethylene and butylene (PB) are added during the copolymerization synthesis of PP to overcome the problems of shrinkage and brittleness, a plurality of new species of copolymerized PP are developed, such as random copolymerized transparent PP and high heat-resistant PP, particularly, a newly-built coal chemical industry refinery is adopted, the gas phase method polypropylene process of the Switzerland INEOS company is adopted for elmlin functionalization, 1-butylene and propylene which are products of coal chemical industry are fully utilized for copolymerization, the well-petrochemical third-generation ring tube method polypropylene process technology is adopted for a well-petrochemical third-generation ring tube method polypropylene device of the petrochemical industry integrated company, and the performance of the raw material PP is further improved and diversified.
The low-shrinkage PP modified material is prepared by modifying a PP raw material, a toughening agent, talcum powder, whiskers and an elastomer are usually added, the CN2012105412583 has detailed data, the low-shrinkage PP raw material is adopted, and the unit CN2016105542443 adopts imported Bazier EC340Q, but the price is high. It has been desired to find a domestic commercial PP material with low shrinkage, which is expected to be applied to the above-mentioned new process polymerization technique.
Matte modified PP is usually delustred by adopting matte powder and incompatible resin, and the matte material is simple and convenient and has clear benefits.
Disclosure of Invention
The invention aims to solve the technical problem of providing low-shrinkage polypropylene and a preparation method thereof, overcoming the defect of complex control of the shrinkage rate of modified PP in the prior art, obtaining the low-shrinkage modified PP material by using domestic cheap and easily-obtained PP raw materials, and simultaneously having matte property and being more suitable for automobile interior trim parts.
The technical scheme for solving the technical problems is as follows: the matte low-shrinkage polypropylene comprises the following raw materials in percentage by weight: 48.5 to 83 percent of PP resin; 6-15% of a toughening agent; 10-35% of talcum powder; 1-1.5% of an auxiliary agent.
On the basis of the technical scheme, the invention can further have the following specific selection or optimized selection.
Specifically, the PP resin is a mixture of homopolymerized polypropylene resin and copolymerized polypropylene resin, the copolymerized polypropylene resin is a mark Zhonghai shell mark EP548R-Z, matt, and other homopolymerizations are general marks.
Preferably, the toughening agent is an ethylene-octene copolymer with the trademark of Dow POE8150 or POE7467 or 875L of SK.
Preferably, the particle size of the talcum powder is 1250-3000 meshes.
Specifically, the auxiliary agent is formed by mixing an antioxidant and a lubricant in any proportion, the antioxidant is 1010 and 168, and the lubricant is calcium stearate and PE wax.
The invention also provides a preparation method of the matte low-shrinkage PP, which comprises the steps of adding the PP resin, the toughening agent, the talcum powder and the auxiliary agent into a high-speed stirrer according to respective weight percentages, uniformly mixing, adding into a double-screw extruder, and carrying out melt extrusion at the extrusion temperature of 180-230 ℃ and the screw rotation speed of 350-500 r/min.
Compared with the prior art, the invention has the beneficial effects that:
the low-shrinkage modified material is obtained by using a domestic cheap and easily-obtained PP raw material EP548R-Z instead of an imported expensive low-shrinkage PP raw material, has matte property and is more suitable for preparing automobile interior trim materials.
Detailed Description
The present invention is described in further detail below with reference to specific examples, which are provided for illustration only and are not intended to limit the scope of the present invention.
The methods adopted by the invention are all conventional methods without special description, and the raw materials used by the invention are all commercial products without special description.
Example 1
A matte low shrink PP prepared by the following process: 30kg of Z30S homopolymerization, 48.5kg of EP548R-Z copolymerization, 10kg of toughening agent, 11kg of talcum powder and 0.5kg of auxiliary agent (the auxiliary agent comprises 0.1kg of antioxidant 1010, 0.1kg of antioxidant 168 and 0.3kg of lubricant calcium stearate) are added into a high-speed stirrer to be stirred and mixed, the mixture is added into a double-screw extruder to be melted and extruded, the extrusion temperature is controlled to be 180 DEG and 230 ℃, the rotating speed of a screw is controlled to be 400 revolutions per minute, and the extruded material is the matte low-shrinkage PP.
Example 2
A matte low shrink PP prepared by the following process: 40kg of homopolymerization Z30S, 30kg of copolymerization EP548R-Z, 7.5kg of toughening agent, 22kg of talcum powder and 0.5kg of auxiliary agent (the auxiliary agent comprises 0.1kg of antioxidant 1010, 0.1kg of antioxidant 168, 0.2kg of lubricant PE wax and 0.1kg of calcium stearate) are added into a high-speed stirrer to be stirred and mixed, the mixture is added into a double-screw extruder to be melted and extruded, the extrusion temperature is controlled to be 180 DEG and 230 ℃, the rotating speed of a screw is controlled to be 420 r/min, and the extruded material is the matte low-shrinkage PP.
Example 3
A matte low shrink PP prepared by the following process: 55kg of EP548R-Z copolymer, 10kg of toughening agent, 34kg of talcum powder and 1kg of auxiliary agent (the auxiliary agent comprises 0.1kg of antioxidant 1010, 0.1kg of antioxidant 168, 0.6kg of lubricant PE wax and 0.2kg of calcium stearate) are added into a high-speed stirrer to be stirred and mixed, the mixture is added into a double-screw extruder to be melted and extruded, the extrusion temperature is controlled to be 180 DEG and 230 ℃, the rotating speed of the screw is controlled to be 360 r/min, and the extruded material is the matte low-shrinkage PP.
Comparative example 1
The Korea copolymer resin K7227H in Wuhan is completely substituted for EP548R-Z, and the other steps are the same as those of example 1.
Comparative example 2
The Korea copolymer resin K7227H in Wuhan is completely substituted for EP548R-Z, and the other steps are the same as those of example 2.
Comparative example 3
The Korea copolymer resin K7227H in Wuhan is completely substituted for EP548R-Z, and the other steps are the same as those in example 3.
The toughening agent in the examples and the comparative examples is 875L of SK, the talcum powder is general talcum powder, SD-9245 and SD-80875L of Xinda group in Haicheng Liaoning, and the auxiliary agents are 1010 and 168 of Baobao antioxidant, and Hamming Tai lubricant calcium stearate 3818 and Huoniville 6A wax.
Performance testing
The matte low-shrinkage PP prepared in the examples and comparative examples were tested for notched izod impact strength, shrinkage, flexural modulus, and gloss using the corresponding national standards, and the results are shown in the following table:
as can be seen from the table above, the shrinkage rate of the embodiment provided by the invention is obviously reduced by 1.2-2.2 per mill compared with the comparative example, the surface gloss is dark, the notched izod impact strength and the modulus are close, and it can be seen that the EP548R-Z raw material can really obtain a low shrinkage rate modified material, so that the application benefits in modified PP are many, a complex technology for controlling the shrinkage rate of PP is not needed, and the technology becomes a general technology; the expensive imported low-shrinkage PP raw material is not needed, the formula is simplified, the efficiency is improved, and the low-gloss modified material injection molding piece has low gloss, can adjust the surface gloss of the modified material injection molding piece, and is suitable for preparing automobile interior trim parts. The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. The matte low-shrinkage polypropylene is characterized by comprising the following raw materials in percentage by weight: 48.5 to 83 percent of PP resin; 6-15% of a toughening agent; 10-35% of talcum powder; 1-1.5% of an auxiliary agent.
2. The matte low-shrinkage polypropylene according to claim 1, wherein the PP resin is a mixture of homo-polypropylene resin and co-polypropylene resin, and is available under the domestic general trademark.
3. The matte low-shrinkage polypropylene according to claim 1, wherein the copolymerized polypropylene resin is EP548R-Z, matte.
4. The matte low-shrinkage polypropylene according to claim 1, wherein the toughening agent is ethylene-octene copolymer (POE).
5. The matte low-shrinkage polypropylene as claimed in claim 1, wherein the particle size of the talc powder is 1250-3000 mesh.
6. The matte low-shrinkage polypropylene as claimed in claim 1, wherein the auxiliary agent is calcium stearate, PE wax, antioxidant, heat stabilizer, light absorber, oleamide, erucamide, or EBS.
7. The preparation method of the matte low-shrinkage polypropylene as claimed in any one of claims 1 to 6, wherein the PP resin, the toughening agent, the talcum powder and the auxiliary agent are added into a high-speed stirrer according to the respective weight percentage to be uniformly mixed, and then are added into a double-screw extruder to be melted and extruded to obtain the PP resin.
8. The method as claimed in claim 7, wherein the extruding temperature of the twin-screw extruder is 180-.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110144948.4A CN112876776A (en) | 2021-02-02 | 2021-02-02 | Matte low-shrinkage polypropylene and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110144948.4A CN112876776A (en) | 2021-02-02 | 2021-02-02 | Matte low-shrinkage polypropylene and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN112876776A true CN112876776A (en) | 2021-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110144948.4A Pending CN112876776A (en) | 2021-02-02 | 2021-02-02 | Matte low-shrinkage polypropylene and preparation method thereof |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110951152A (en) * | 2019-12-17 | 2020-04-03 | 广东圆融新材料有限公司 | Polypropylene composite material for low-gloss and good-appearance automotive interior and preparation method thereof |
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- 2021-02-02 CN CN202110144948.4A patent/CN112876776A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110951152A (en) * | 2019-12-17 | 2020-04-03 | 广东圆融新材料有限公司 | Polypropylene composite material for low-gloss and good-appearance automotive interior and preparation method thereof |
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Application publication date: 20210601 |