CN112574501A - Thermal-aging-resistant low-odor polypropylene composite material and preparation method thereof - Google Patents
Thermal-aging-resistant low-odor polypropylene composite material and preparation method thereof Download PDFInfo
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- CN112574501A CN112574501A CN202011157820.3A CN202011157820A CN112574501A CN 112574501 A CN112574501 A CN 112574501A CN 202011157820 A CN202011157820 A CN 202011157820A CN 112574501 A CN112574501 A CN 112574501A
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- antioxidant
- molecular sieve
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- 239000004743 Polypropylene Substances 0.000 title claims abstract description 40
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 38
- -1 polypropylene Polymers 0.000 title claims abstract description 36
- 239000002131 composite material Substances 0.000 title claims abstract description 21
- 238000003878 thermal aging Methods 0.000 title claims description 6
- 238000002360 preparation method Methods 0.000 title abstract description 8
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 37
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 37
- 239000002808 molecular sieve Substances 0.000 claims abstract description 29
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 29
- 230000032683 aging Effects 0.000 claims abstract description 20
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 14
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000001035 drying Methods 0.000 claims abstract description 14
- 239000010457 zeolite Substances 0.000 claims abstract description 14
- 239000004611 light stabiliser Substances 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 13
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims abstract description 10
- 230000002745 absorbent Effects 0.000 claims abstract description 8
- 239000002250 absorbent Substances 0.000 claims abstract description 8
- 239000002253 acid Substances 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims abstract description 7
- 238000000227 grinding Methods 0.000 claims abstract description 5
- 238000007873 sieving Methods 0.000 claims abstract description 5
- 238000005406 washing Methods 0.000 claims abstract description 5
- 238000012360 testing method Methods 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 6
- 239000002245 particle Substances 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
- 238000000034 method Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 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 claims description 3
- 150000001412 amines Chemical class 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 3
- 235000013539 calcium stearate Nutrition 0.000 claims description 3
- 239000008116 calcium stearate Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- PWWSSIYVTQUJQQ-UHFFFAOYSA-N distearyl thiodipropionate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCCCCCCCC PWWSSIYVTQUJQQ-UHFFFAOYSA-N 0.000 claims description 3
- 238000005469 granulation Methods 0.000 claims description 3
- 230000003179 granulation Effects 0.000 claims description 3
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 claims description 3
- 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 claims description 2
- 235000019359 magnesium stearate Nutrition 0.000 claims description 2
- 239000000155 melt Substances 0.000 claims description 2
- 229920005629 polypropylene homopolymer Polymers 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims description 2
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 2
- 238000013461 design Methods 0.000 abstract description 2
- 229910052760 oxygen Inorganic materials 0.000 abstract description 2
- 239000001301 oxygen Substances 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 9
- 230000003712 anti-aging effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012752 auxiliary agent Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000011342 resin composition Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- KGRVJHAUYBGFFP-UHFFFAOYSA-N 2,2'-Methylenebis(4-methyl-6-tert-butylphenol) Chemical compound CC(C)(C)C1=CC(C)=CC(CC=2C(=C(C=C(C)C=2)C(C)(C)C)O)=C1O KGRVJHAUYBGFFP-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- ORECYURYFJYPKY-UHFFFAOYSA-N n,n'-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexane-1,6-diamine;2,4,6-trichloro-1,3,5-triazine;2,4,4-trimethylpentan-2-amine Chemical compound CC(C)(C)CC(C)(C)N.ClC1=NC(Cl)=NC(Cl)=N1.C1C(C)(C)NC(C)(C)CC1NCCCCCCNC1CC(C)(C)NC(C)(C)C1 ORECYURYFJYPKY-UHFFFAOYSA-N 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
- C08K5/134—Phenols containing ester groups
- C08K5/1345—Carboxylic esters of phenolcarboxylic acids
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
- C08K5/37—Thiols
- C08K5/372—Sulfides, e.g. R-(S)x-R'
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/524—Esters of phosphorous acids, e.g. of H3PO3
- C08K5/526—Esters of phosphorous acids, e.g. of H3PO3 with hydroxyaryl compounds
-
- 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
- C08K9/00—Use of pretreated ingredients
- C08K9/12—Adsorbed ingredients, e.g. ingredients on carriers
-
- 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
Abstract
The invention provides a heat-aging-resistant low-odor polypropylene composite material and a preparation method thereof, wherein the heat-aging-resistant low-odor polypropylene composite material comprises the following raw materials in percentage by mass: polypropylene: 97.6-99.1%, molecular sieve load antioxidant: 0.5% -2%, light stabilizer: 0.1% -0.5%, acid absorbent: 0.1 to 0.5 percent; the molecular sieve loaded antioxidant is as follows: under the conditions of normal temperature and normal pressure, firstly dissolving an antioxidant in chloroform, then adding a zeolite molecular sieve according to the mass ratio of the antioxidant to the zeolite molecular sieve of 1: 1-1: 2, stirring for 2-5 h, drying under negative pressure, washing, drying, grinding and sieving to obtain the product. The polypropylene composite material with heat aging resistance and low odor prepared by the invention has excellent heat oxygen aging resistance and low odor, and better meets the performance index requirements of automotive interior materials on raw materials under the design of light weight of automobiles.
Description
Technical Field
The invention belongs to the technical field of polypropylene composite materials, and particularly relates to a heat-aging-resistant low-odor polypropylene composite material and a preparation method thereof.
Background
The polypropylene material is one of five general materials, has excellent comprehensive performance, and is applied to various industries. But the tertiary carbon atoms on the molecular chain of the polymer are high in activity, so that the polymer is easy to age and degrade in the using process. Therefore, the polypropylene needs to be added with an anti-aging auxiliary agent in the synthesis or modification process. Under the condition of high requirement on aging resistance, the dosage of the anti-aging auxiliary agent is increased, and the adverse effect of odor emission of the material is brought. For automotive interior polypropylene materials, it is not only required that the materials exhibit excellent aging resistance during service, but also that the characteristics of the materials that are low in odor and low in emission are maintained. Therefore, research and development of the aging-resistant low-VOC polypropylene resin and the material can expand the application field of PP and really meet the requirements of green and environment-friendly materials.
Chinese patent document CN111100383A discloses an aging-resistant low-VOC polypropylene resin composition and a preparation method thereof, wherein a hindered amine light stabilizer octa-isobutyl silsesquioxane with medium and low molecular weight and flexible groups is added, and can rapidly migrate to the surface to form a higher concentration on the surface so as to inhibit aging degradation; the anti-aging performance of the polypropylene resin composition is greatly improved, the TVOC can be lower than 50 mu g.C/g, the odor reaches 3.5 grade and below, and the defects of the prior art are well overcome. However, this patent only considers the light stability of polypropylene and does not investigate its heat stability.
Disclosure of Invention
The invention aims to provide a thermal aging resistant low-odor polypropylene composite material and a preparation method thereof, so as to solve the problems of poor thermal aging resistant performance, large odor and the like in the prior art.
The purpose of the invention is realized by the following technical scheme:
the invention relates to a heat-aging-resistant low-odor polypropylene composite material which is characterized by comprising the following raw materials in percentage by mass:
polypropylene: 97.6 to 99.1 percent of the total weight of the mixture,
molecular sieve supported antioxidant: 0.5 to 2 percent of the total weight of the mixture,
light stabilizer: 0.1 to 0.5 percent of,
acid absorbent: 0.1 to 0.5 percent;
the molecular sieve load antioxidant is as follows: under the conditions of normal temperature and normal pressure, firstly dissolving an antioxidant in chloroform, then adding a zeolite molecular sieve according to the mass ratio of the antioxidant to the zeolite molecular sieve of 1: 1-1: 2, stirring for 2-5 h, drying under negative pressure, washing, drying, grinding and sieving to obtain the product; the particle size is 18 meshes or more; the antioxidant is one or more of antioxidant 1010, antioxidant 1076, antioxidant 168 and antioxidant DSTP; the specific area of the zeolite molecular sieve is 300-900 m2The pore diameter is 12-23 nm;
the polypropylene is homo-polypropylene or co-polypropylene, and the melt index of the polypropylene is 2-90 g/10min under the test conditions of 230 ℃ and 2.16 Kg;
the light stabilizer is one or more of hindered amine light stabilizers, such as: light stabilizer 944, light stabilizer 855 from BASF; the acid absorbent is one or more of calcium stearate, magnesium stearate and zinc stearate.
The preparation method of the heat-aging-resistant low-odor polypropylene composite material is characterized by comprising the following steps of:
(1) mixing and uniformly stirring the polypropylene, the molecular sieve supported antioxidant, the light stabilizer and the acid absorbent to obtain a mixed raw material;
(2) feeding the mixed raw materials into a machine barrel of a double-screw extruder in the same meshing direction, wherein the diameter of a screw is 35mm, the length-diameter ratio L/D is 40, the vacuum degree is-0.06-0.10 MPa, and the temperature of each subarea of the machine barrel from a feed inlet to a machine head outlet is set as follows: and (3) at the temperature of 170-220 ℃, the rotating speed of a main engine is 450-600 revolutions per minute, and the polypropylene composite material with heat resistance, ageing resistance and low odor is prepared through melt extrusion, cooling, granulation and drying treatment.
According to the invention, the antioxidant is pre-loaded in the mesopores of the zeolite molecular sieve, and the slow release effect of the zeolite molecular sieve is utilized, so that the using amount of the antioxidant can be reduced, and the degree of outward migration of the antioxidant from a matrix material is reduced, thereby reducing the problem of material odor caused by the increase of the adding amount of the antioxidant; the prepared polypropylene composite material with heat aging resistance and low odor has excellent heat oxygen aging resistance and low odor, and better meets the performance index requirements of the automotive interior material on raw materials under the design of light weight of an automobile.
Detailed Description
The invention is further illustrated by the following specific examples, which are intended to be illustrative only and not limiting.
The embodiment of the invention and the raw materials used in the proportion are as follows:
PP: SABIC 511MK40T, copolypropylene, melt index MFR 30g/10min (230 ℃, 2.16 Kg).
Molecular sieve supported antioxidant 1: under the conditions of normal temperature and normal pressure, firstly, mixing an antioxidant Irganox 1010 and an antioxidant Irganox 168 according to a mass ratio of 1:1, preparing a chloroform solution with 5% solute concentration, and then mixing the pure antioxidant and the zeolite molecular sieve according to the mass ratio of 1:1 adding zeolite molecular sieve, stirring for 3h, drying under negative pressure, washing, drying, grinding and sieving to obtain particles with the mesh number of 20 meshes;
molecular sieve supported antioxidant 2: under the conditions of normal temperature and normal pressure, firstly, mixing an antioxidant Irganox 1076, an antioxidant Irganox 168 and an antioxidant DSTP according to the mass ratio of 1: 1:1, preparing a chloroform solution with a solute concentration of 10%, and then mixing the pure antioxidant and the zeolite molecular sieve according to a mass ratio of 1:2 adding zeolite molecular sieve, stirring for 3h, drying under negative pressure, washing, drying, grinding and sieving to obtain particles with the mesh number of 20 meshes;
light stabilizer: chimassorb 944, BASF.
Acid absorbent: calcium stearate, commercially available.
Wherein the following tables 1 and 2 are mass ratios of the respective component ratios in examples 1 to 6 and comparative examples 1 to 3, respectively.
TABLE 1 Mass fractions (unit:%)
TABLE 2 Mass fractions (unit:%) of respective raw materials in comparative examples 1 to 3
The concrete preparation methods of examples 1 to 6 are the same as those of comparative examples 1 to 3, namely, the raw materials are weighed according to the component proportions shown in tables 1 and 2, the raw materials are uniformly mixed and then fed into a machine barrel of a double-screw extruder meshed in the same direction, the diameter of a screw is 35mm, the length-diameter ratio L/D is 40, the vacuum degree is-0.06 to-0.08 MPa, and the temperature of each subarea of the machine barrel from a feed inlet to a machine head outlet is set as follows: and (3) at the temperature of 170-220 ℃, the rotating speed of a main engine is 450-600 revolutions per minute, and the low-odor antistatic polypropylene composite material is prepared through melt extrusion, cooling, granulation and drying.
The products obtained in examples 1 to 6 and the products obtained in comparative examples 1 to 3 were subjected to performance tests and comparisons. Odor grade: the test was carried out according to PV3900, the mass of the sample was 50. + -.2 g, the temperature was 80 ℃ and the time was 2 h. The aging time testing method comprises the following steps: and (3) performing injection molding on the particles obtained after extrusion to obtain a sample plate with the thickness of 4mm, and placing the sample plate in a drying oven at 150 ℃ until the surface of the sample plate has pulverization and crack phenomena, and recording the aging time. After the test, parameters of the test performance of the products of examples 1 to 6 and comparative examples 1 to 3 were obtained, as shown in table 3.
TABLE 3 test Performance results for the products of examples 1-6 and comparative examples 1-3
Since the effective antioxidant content of the molecular sieve supported antioxidant is only 1/3 of the total mass, the molecular sieve supported antioxidant is prepared by the method of example 1 and comparative example 1; example 3 and comparative example 2; example 6 corresponds to comparative example 3. The results of the examples 1-6 show that when the content of the added effective antioxidant is the same, the aging time of the material is obviously prolonged by the antioxidant loaded on the molecular sieve; when the same aging time is reached, the odor grade of the composite material is much smaller, which shows that the odor grade of the material can be obviously reduced by adding the molecular sieve loaded antioxidant, and the odor of the polypropylene composite material which needs to reach the aging resistance for a longer time is better improved. Examples 4 and 6 achieve a low odor rating of the material at 1200h aging resistance of the polypropylene.
Claims (5)
1. The polypropylene composite material with heat aging resistance and low odor is characterized by comprising the following raw materials in percentage by mass:
polypropylene: 97.6 to 99.1 percent of the total weight of the mixture,
molecular sieve supported antioxidant: 0.5 to 2 percent of the total weight of the mixture,
light stabilizer: 0.1 to 0.5 percent of,
acid absorbent: 0.1 to 0.5 percent;
the molecular sieve load antioxidant is as follows: under the conditions of normal temperature and normal pressure, firstly dissolving an antioxidant in chloroform, then adding a zeolite molecular sieve according to the mass ratio of the antioxidant to the zeolite molecular sieve of 1: 1-1: 2, stirring for 2-5 h, drying under negative pressure, washing, drying, grinding and sieving to obtain the product.
2. The polypropylene composite material with heat aging resistance and low odor as claimed in claim 1, wherein the polypropylene is homo-polypropylene or co-polypropylene, and the melt index is 2-90 g/10min under the test conditions of 230 ℃ and 2.16 Kg.
3. The thermal aging resistant low odor polypropylene composite of claim 1 wherein the molecular sieve supported antioxidant has a particle size of 18 mesh and above; the antioxidant is one or more of antioxidant 1010, antioxidant 1076, antioxidant 168 and antioxidant DSTP; the specific area of the zeolite molecular sieve is 300-900 m2The pore diameter is 12-23 nm.
4. The polypropylene composite with heat aging resistance and low odor according to claim 1, wherein the light stabilizer is one or more of hindered amine light stabilizers; the acid absorbent is one or more of calcium stearate, magnesium stearate and zinc stearate.
5. The method for preparing the thermal aging resistant low-odor polypropylene composite material according to any one of claims 1 to 4, characterized by comprising the steps of:
(1) mixing and uniformly stirring the polypropylene, the molecular sieve supported antioxidant, the light stabilizer and the acid absorbent to obtain a mixed raw material;
(2) feeding the mixed raw materials into a machine barrel of a double-screw extruder in the same meshing direction, wherein the diameter of a screw is 35mm, the length-diameter ratio L/D is 40, the vacuum degree is-0.06-0.10 MPa, and the temperature of each subarea of the machine barrel from a feed inlet to a machine head outlet is set as follows: and (3) at the temperature of 170-220 ℃, the rotating speed of a main engine is 450-600 revolutions per minute, and the polypropylene composite material with heat resistance, ageing resistance and low odor is prepared through melt extrusion, cooling, granulation and drying treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011157820.3A CN112574501A (en) | 2020-10-26 | 2020-10-26 | Thermal-aging-resistant low-odor polypropylene composite material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011157820.3A CN112574501A (en) | 2020-10-26 | 2020-10-26 | Thermal-aging-resistant low-odor polypropylene composite material and preparation method thereof |
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| CN112574501A true CN112574501A (en) | 2021-03-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114507381A (en) * | 2021-12-23 | 2022-05-17 | 国家能源集团宁夏煤业有限责任公司 | Thermal-oxidative-aging-resistant composite, preparation method thereof, polypropylene composition and polypropylene composite |
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| JP2006130488A (en) * | 2004-11-02 | 2006-05-25 | Kazutoshi Igarashi | Base agent capable of adsorbing/decomposing harmful molecule using new inorganic porous body |
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| CN102604209A (en) * | 2012-02-20 | 2012-07-25 | 金发科技股份有限公司 | Thermal-oxidizing-aging resisting polypropylene composite |
| JP2014139124A (en) * | 2012-12-21 | 2014-07-31 | Yokohama National Univ | Method of synthesizing nanosize zeolite |
| CN106496776A (en) * | 2016-10-14 | 2017-03-15 | 浙江世博新材料股份有限公司 | A kind of polyolefin antioxygen composition and preparation method thereof |
| CN109553940A (en) * | 2018-10-18 | 2019-04-02 | 安徽大力熊环保塑料科技有限公司 | A kind of moisture-inhibiting degradation preservative film and preparation method thereof |
-
2020
- 2020-10-26 CN CN202011157820.3A patent/CN112574501A/en active Pending
Patent Citations (6)
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|---|---|---|---|---|
| JP2006130488A (en) * | 2004-11-02 | 2006-05-25 | Kazutoshi Igarashi | Base agent capable of adsorbing/decomposing harmful molecule using new inorganic porous body |
| CN102476995A (en) * | 2010-11-25 | 2012-05-30 | 中国石油化工股份有限公司 | Preparation method of liquid hindered phenol carboxylic ester antioxidant |
| CN102604209A (en) * | 2012-02-20 | 2012-07-25 | 金发科技股份有限公司 | Thermal-oxidizing-aging resisting polypropylene composite |
| JP2014139124A (en) * | 2012-12-21 | 2014-07-31 | Yokohama National Univ | Method of synthesizing nanosize zeolite |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114507381A (en) * | 2021-12-23 | 2022-05-17 | 国家能源集团宁夏煤业有限责任公司 | Thermal-oxidative-aging-resistant composite, preparation method thereof, polypropylene composition and polypropylene composite |
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Application publication date: 20210330 |