CN112574499A - High-performance, low-odor and low-VOC polypropylene whisker modified material and preparation method thereof - Google Patents
High-performance, low-odor and low-VOC polypropylene whisker modified material and preparation method thereof Download PDFInfo
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- -1 polypropylene Polymers 0.000 title claims abstract description 67
- 239000000463 material Substances 0.000 title claims abstract description 61
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 59
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 59
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 38
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 38
- 239000003463 adsorbent Substances 0.000 claims abstract description 25
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims abstract description 19
- 239000012745 toughening agent Substances 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 239000011347 resin Substances 0.000 claims abstract description 5
- 229920005989 resin Polymers 0.000 claims abstract description 5
- 238000001125 extrusion Methods 0.000 claims description 13
- 238000002156 mixing Methods 0.000 claims description 12
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 11
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 9
- 229920001577 copolymer Polymers 0.000 claims description 9
- 239000000155 melt Substances 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical group 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 4
- 239000013078 crystal Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 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 group 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
- CWAFVXWRGIEBPL-UHFFFAOYSA-N ethoxysilane Chemical compound CCO[SiH3] CWAFVXWRGIEBPL-UHFFFAOYSA-N 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 238000010992 reflux Methods 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 229920000089 Cyclic olefin copolymer Polymers 0.000 claims description 2
- 229920002943 EPDM rubber Polymers 0.000 claims description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 2
- 239000007822 coupling agent Substances 0.000 claims description 2
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 229920001935 styrene-ethylene-butadiene-styrene Polymers 0.000 claims description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 2
- 238000001291 vacuum drying Methods 0.000 claims description 2
- 239000004711 α-olefin Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 150000001299 aldehydes Chemical class 0.000 abstract description 2
- 238000005034 decoration Methods 0.000 abstract description 2
- 150000002576 ketones Chemical class 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 239000012855 volatile organic compound Substances 0.000 description 21
- 230000000052 comparative effect Effects 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 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 description 6
- 238000011049 filling Methods 0.000 description 6
- 238000005469 granulation Methods 0.000 description 4
- 230000003179 granulation Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- AHYFYQKMYMKPKD-UHFFFAOYSA-N 3-ethoxysilylpropan-1-amine Chemical compound CCO[SiH2]CCCN AHYFYQKMYMKPKD-UHFFFAOYSA-N 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- WPMYUUITDBHVQZ-UHFFFAOYSA-N 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoic acid Chemical compound CC(C)(C)C1=CC(CCC(O)=O)=CC(C(C)(C)C)=C1O WPMYUUITDBHVQZ-UHFFFAOYSA-N 0.000 description 1
- GLISOBUNKGBQCL-UHFFFAOYSA-N 3-[ethoxy(dimethyl)silyl]propan-1-amine Chemical compound CCO[Si](C)(C)CCCN GLISOBUNKGBQCL-UHFFFAOYSA-N 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000004005 microsphere Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 238000013027 odor testing Methods 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920005606 polypropylene copolymer Polymers 0.000 description 1
- 229920005629 polypropylene homopolymer Polymers 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
-
- 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
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 provides a high-performance, low-odor and low-VOC polypropylene whisker modified material which is prepared from the following raw materials in parts by weight: 40-90 parts of polypropylene resin, 5-30 parts of whisker, 5-15 parts of toughening agent, 3-5 parts of compatilizer, 0.5-2 parts of amino modified odor adsorbent, 0.2-0.4 part of main antioxidant and 0.2-0.4 part of auxiliary antioxidant. According to the high-performance, low-odor and low-VOC polypropylene whisker modified material and the preparation method thereof, the self-made amino modified odor adsorbent is added, so that the odor and the VOC content of the whisker filled and modified polypropylene material are obviously reduced in the production and forming processes, particularly, aldehyde and ketone substances easily generated in the processing process are obviously reduced, and the requirement of a host factory on the odor VOC of interior decoration is met.
Description
Technical Field
The invention relates to the technical field of modified plastics, in particular to a high-performance, low-odor and low-VOC polypropylene whisker modified material and a preparation method thereof.
Background
In recent years, polypropylene materials are widely applied to the field of automobiles, parts such as bumpers, instrument panels, door panels, columns and the like are made of polypropylene materials, wherein the requirements on the rigidity and toughness of the materials for instrument panel frameworks, auxiliary instrument panel frameworks and the like are high, so that whisker filling modified polypropylene materials are selected from the parts by many host factories, but the whisker filling modified polypropylene materials have high requirements on odor and VOC (volatile organic compounds) as interior parts, and the whisker filling modified polypropylene materials can generate large odor and more VOC substances in the production and forming processes, so that the application of the whisker filling modified polypropylene materials in the field of automobile interior is limited.
Disclosure of Invention
In view of the above, in order to overcome the defects in the prior art, the invention aims to provide a polypropylene whisker modified material with high performance, low odor and low VOC and a preparation method thereof, wherein a self-made amino modified odor adsorbent is added, so that the odor and the VOC content of the polypropylene material filled and modified by the whisker are obviously reduced in the production and forming processes, particularly, aldehyde and ketone substances easily generated in the processing process are obviously reduced, and the requirement of a host factory on the odor VOC of interior decoration is met.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a high-performance, low-odor and low-VOC polypropylene whisker modified material is prepared from the following raw materials in parts by weight:
further, the amino modified odor adsorbent is prepared by a preparation method comprising the following steps:
5-10g of hollow mesoporous silica microspheres with the particle size of 200-800nm and the wall thickness of 40-80nm, 40-60mL of aminopropyl-containing ethoxysilane is added into 500-1000mL of benzene solvent for refluxing at 75-85 ℃ for 10-24h, and then the amino modified odor adsorbent is obtained through filtration, ethanol washing and vacuum drying.
Wherein, the ethoxy silane containing aminopropyl can be 3-aminopropyl ethoxy silane or (3-aminopropyl) dimethyl ethoxy silane; the benzene-based solvent may be toluene.
Further, the polypropylene resin is one or a mixture of more than two of polypropylene copolymer and polypropylene homopolymer, and the melt flow rate of the polypropylene resin is 5-100g/10 min.
Further, the toughening agent is one or a mixture of more than two of ethylene-octene copolymer, ethylene propylene diene monomer, propylene-alpha olefin copolymer and SEBS thermoplastic elastomer.
Further, the whisker is at least one of whisker powder or whisker master batch.
Further, the compatilizer is at least one of maleic anhydride graft or coupling agent.
Further, the main antioxidant is a hindered phenol antioxidant (the component is tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester); preferably, the primary antioxidant is antioxidant 1010.
Further, the auxiliary antioxidant is phosphite ester compound (the component is tris [2, 4-di-tert-butylphenyl ] phosphite); preferably, the secondary antioxidant is antioxidant 168.
The invention also provides a preparation method of the high-performance, low-odor and low-VOC polypropylene whisker modified material, which comprises the following steps:
(1) weighing polypropylene, crystal whisker, a toughening agent, a compatilizer, an amino modified odor adsorbent, a main antioxidant and an auxiliary antioxidant, mixing the materials in a high-speed mixer for 1-3min, and uniformly mixing to obtain a premix;
(2) adding the premix into a main feeding port of a double-screw extruder, carrying out melt extrusion, granulating and drying to obtain the polypropylene whisker modified material with high performance, low odor and low VOC.
Further, the conditions of the melt extrusion step are: the temperature of the first zone is 80-120 ℃, the temperature of the second zone is 190-; the length-diameter ratio of the twin-screw extruder is 40: 1.
Compared with the prior art, the polypropylene whisker modified material with high performance, low odor and low VOC has the following advantages:
the high-performance, low-odor and low-VOC polypropylene whisker modified material has the characteristics of low odor and low VOC by adding the self-made amino modified odor adsorbent, and the principle is that the self-made amino modified odor adsorbent has a large specific surface area, amino groups on the inner surface and the outer surface of the microsphere have a high-efficiency anchoring effect on aldehyde ketone micromolecules, and meanwhile, the capture effect of the inner cavity on the micromolecules is good, so that the odor generated by the aldehyde ketone substances can be effectively removed in the processes of extrusion granulation and injection molding. In addition, the invention also adds the crystal whisker which can enhance the mechanical property of the material. Meanwhile, the invention has the advantages of no influence on the color matching capability of the material, easy implementation and wide applicability due to less additional components.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The test reagents used in the following examples, unless otherwise specified, are all conventional biochemical reagents; the experimental methods are conventional methods unless otherwise specified.
The present invention will be described in detail with reference to examples.
The polypropylene in the embodiment of the invention has a melt flow rate of 28g/10min under the conditions that the test temperature is 230 ℃ and the weight of a test weight is 2.16kg, and the source is as follows: is sold on the market;
the toughening agent in the embodiment of the invention is an ethylene-octene copolymer, and the sources are as follows: is sold on the market;
the whisker in the embodiment of the invention is whisker master batch;
the odor adsorbent disclosed by the embodiment of the invention is prepared by adding 10g of hollow mesoporous silica microspheres with the particle size of 500nm and the wall thickness of 60nm and 50mL of 3-aminopropylethoxysilane into 1000mL of toluene, refluxing for 12h at 80 ℃, filtering, washing with ethanol, and drying in vacuum to obtain a self-made amino modified odor adsorbent;
the main antioxidant in the embodiment of the invention is an antioxidant 1010;
the auxiliary antioxidant described in the embodiment of the invention is antioxidant 168.
The present invention will be described in detail with reference to examples.
Example 1
A high-performance, low-odor and low-VOC polypropylene whisker modified material is prepared from the following raw materials in parts by weight: 81.0 parts of polypropylene, 5.0 parts of toughening agent (ethylene-octene copolymer), 10.0 parts of whisker (whisker master batch), 3 parts of compatilizer, 1.0 part of amino modified odor adsorbent, 10100.3 parts of antioxidant and 1680.3 parts of antioxidant.
The preparation method of the polypropylene whisker modified material with high performance, low odor and low VOC comprises the following steps:
(1) weighing polypropylene, crystal whisker, toughening agent, compatilizer, amino modified odor adsorbent, main antioxidant and auxiliary antioxidant, mixing the weighed materials in a high-speed mixer for 1-3min, and uniformly mixing to obtain the premix.
(2) And adding the premix into a main feeding port of a double-screw extruder, performing melt extrusion, granulating and drying to obtain the polypropylene whisker modified material with high performance, low odor and low VOC.
The conditions of the melt extrusion step are as follows: the temperature of the first zone is 120 ℃, the temperature of the second zone is 200 ℃, the temperature of the third zone is 210 ℃, the temperature of the fourth zone is 220 ℃, the temperature of the fifth zone is 220 ℃, the temperature of the sixth zone is 220 ℃, the temperature of the seventh zone is 220 ℃, the temperature of the eighth zone is 220 ℃, the temperature of the ninth zone is 220 ℃, and the rotating speed of the main engine is 500 revolutions per minute; the length-diameter ratio of the twin-screw extruder is 40: 1.
Example 2
A high-performance, low-odor and low-VOC polypropylene whisker modified material is prepared from the following raw materials in parts by weight: 64.0 parts of polypropylene, 10.0 parts of toughening agent (ethylene-octene copolymer), 20.0 parts of whisker (whisker master batch), 5.0 parts of compatilizer, 1.0 part of amino modified odor adsorbent, 10100.3 parts of antioxidant and 1680.3 parts of antioxidant.
The preparation method of the polypropylene whisker modified material with high performance, low odor and low VOC is the same as that of the polypropylene whisker modified material in the example 1.
Example 3
A high-performance, low-odor and low-VOC polypropylene whisker modified material is prepared from the following raw materials in parts by weight: 53.0 parts of polypropylene, 10.0 parts of toughening agent (ethylene-octene copolymer), 30.0 parts of whisker (whisker master batch), 5 parts of compatilizer, 2.0 parts of amino modified odor adsorbent, 10100.3 parts of antioxidant and 1680.3 parts of antioxidant.
The preparation method of the polypropylene whisker modified material with high performance, low odor and low VOC is the same as that of the polypropylene whisker modified material in the example 1.
Comparative example 1
A modified material is prepared from the following raw materials in parts by weight: 81.0 parts of polypropylene, 5.0 parts of toughening agent (ethylene-octene copolymer), 10.0 parts of talcum powder master batch, 3.0 parts of compatilizer, 1.0 part of amino modified odor adsorbent, 10100.3 parts of antioxidant and 1680.3 parts of antioxidant.
The preparation method of the modified material comprises the following steps:
(1) weighing polypropylene, a toughening agent, a talcum powder master batch, a compatilizer, an amino modified odor adsorbent, a main antioxidant and an auxiliary antioxidant, mixing the weighed materials in a high-speed mixer for 1-3min, and uniformly mixing to obtain the premix.
(2) Adding the premix into a main feeding port of a double-screw extruder, carrying out melt extrusion, and carrying out granulation and drying to obtain the modified material.
The conditions of the melt extrusion step are as follows: the temperature of the first zone is 120 ℃, the temperature of the second zone is 200 ℃, the temperature of the third zone is 210 ℃, the temperature of the fourth zone is 220 ℃, the temperature of the fifth zone is 220 ℃, the temperature of the sixth zone is 220 ℃, the temperature of the seventh zone is 220 ℃, the temperature of the eighth zone is 220 ℃, the temperature of the ninth zone is 220 ℃, and the rotating speed of the main engine is 500 revolutions per minute; the length-diameter ratio of the twin-screw extruder is 40: 1.
Comparative example 2
A modified material is prepared from the following raw materials in parts by weight: 82.0 parts of polypropylene, 5.0 parts of toughening agent (ethylene-octene copolymer), 10.0 parts of whisker (whisker master batch), 3.0 parts of compatilizer, 10100.3 parts of antioxidant and 1680.3 parts of antioxidant.
The preparation method of the modified material comprises the following steps:
(1) weighing polypropylene, toughening agent, whisker master batch, compatilizer, main antioxidant and auxiliary antioxidant, mixing the weighed materials in a high-speed mixer for 1-3min, and uniformly mixing to obtain the premix.
(2) Adding the premix into a main feeding port of a double-screw extruder, carrying out melt extrusion, and carrying out granulation and drying to obtain the modified material.
The conditions of the melt extrusion step are as follows: the temperature of the first zone is 120 ℃, the temperature of the second zone is 200 ℃, the temperature of the third zone is 210 ℃, the temperature of the fourth zone is 220 ℃, the temperature of the fifth zone is 220 ℃, the temperature of the sixth zone is 220 ℃, the temperature of the seventh zone is 220 ℃, the temperature of the eighth zone is 220 ℃, the temperature of the ninth zone is 220 ℃, and the rotating speed of the main engine is 500 revolutions per minute; the length-diameter ratio of the twin-screw extruder is 40: 1.
Comparative example 3
A modified material is prepared from the following raw materials in parts by weight: 64.0 parts of polypropylene, 10.0 parts of toughening agent (ethylene-octene copolymer), 20.0 parts of whisker (whisker master batch), 5.0 parts of compatilizer, 1.0 part of odor adsorbent (infilm 300), 10100.3 parts of antioxidant and 1680.3 parts of antioxidant.
The preparation method of the modified material comprises the following steps:
(1) weighing polypropylene, a toughening agent, whisker master batches, a compatilizer, an odor adsorbent, a main antioxidant and an auxiliary antioxidant, mixing the weighed materials in a high-speed mixer for 1-3min, and uniformly mixing to obtain the premix.
(2) Adding the premix into a main feeding port of a double-screw extruder, carrying out melt extrusion, and carrying out granulation and drying to obtain the modified material.
The conditions of the melt extrusion step are as follows: the temperature of the first zone is 120 ℃, the temperature of the second zone is 200 ℃, the temperature of the third zone is 210 ℃, the temperature of the fourth zone is 220 ℃, the temperature of the fifth zone is 220 ℃, the temperature of the sixth zone is 220 ℃, the temperature of the seventh zone is 220 ℃, the temperature of the eighth zone is 220 ℃, the temperature of the ninth zone is 220 ℃, and the rotating speed of the main engine is 500 revolutions per minute; the length-diameter ratio of the twin-screw extruder is 40: 1.
Mechanical properties of the material the ISO standard test of the material, wherein the test standard of the tensile strength is ISO 527 and the unit is MPa, the test standard of the flexural modulus is ISO 178 and the unit is MPa, the test standard of the notch impact strength is ISO 179 and the unit is kJ/m2. The odor test method refers to a test method of popular VW's PV3900E odor experiment of parts in automobile carriages, and the odor evaluation standard is divided into: grade 1 is odorless; grade 2 is odorous and has no interference; grade 3 has a clear odor but no interference; a class 4 interfering odor; grade 5, strong interfering odor; grade 6 has intolerable odor, and the TVOC test method refers to Beijing modern MS 300-5510L bag method standard, and the unit is mug/m3。
TABLE 1 formulation tables for examples 1-3 and comparative examples 1-3 (parts by weight)
TABLE 2 results of Performance test of examples 1-3 and comparative examples 1-3
As can be seen from the physical property detection results of the example 1 and the comparative example 1, the material filled with the whiskers has the comprehensive performance obviously superior to that of a talcum powder filling material, because the whiskers are needle-shaped fillers, the talcum powder is flaky fillers, and the whisker filling performance is better than that of talcum powder due to the morphological reasons of the whiskers and the talcum powder; from the odor and TVOC test results of example 1 and comparative example 2 and examples 2-3 and comparative example 3, it can be seen that the odor removal effect of the amino modified odor adsorbent is significantly better than that of the odor adsorbent without the addition of the odor adsorbent or the addition of the common odor adsorbent.
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 (10)
1. A high-performance, low-odor and low-VOC polypropylene whisker modified material is characterized in that: the compound is prepared from the following raw materials in parts by weight:
2. the high performance, low odor, low VOC polypropylene whisker modified material of claim 1, wherein: the amino modified odor adsorbent is prepared by a preparation method comprising the following steps:
5-10g of hollow mesoporous silica microspheres with the particle size of 200-800nm and the wall thickness of 40-80nm, 40-60mL of aminopropyl-containing ethoxysilane is added into 500-1000mL of benzene solvent for refluxing at 75-85 ℃ for 10-24h, and then the amino modified odor adsorbent is obtained through filtration, ethanol washing and vacuum drying.
3. The high performance, low odor, low VOC polypropylene whisker modified material of claim 1, wherein: the polypropylene resin is one or a mixture of more than two of copolymerized polypropylene and homopolymerized polypropylene, and the melt flow rate of the polypropylene resin is 5-100g/10 min.
4. The high performance, low odor, low VOC polypropylene whisker modified material of claim 1, wherein: the toughening agent is one or a mixture of more than two of ethylene-octene copolymer, ethylene propylene diene monomer, propylene-alpha olefin copolymer and SEBS thermoplastic elastomer.
5. The high performance, low odor, low VOC polypropylene whisker modified material of claim 1, wherein: the whisker is at least one of whisker powder or whisker master batch.
6. The high performance, low odor, low VOC polypropylene whisker modified material of claim 1, wherein: the compatilizer is at least one of maleic anhydride graft or coupling agent.
7. The high performance, low odor, low VOC polypropylene whisker modified material of claim 1, wherein: the main antioxidant is hindered phenol antioxidant; preferably, the primary antioxidant is antioxidant 1010.
8. The high performance, low odor, low VOC polypropylene whisker modified material of claim 1, wherein: the auxiliary antioxidant is a phosphite ester compound; preferably, the secondary antioxidant is antioxidant 168.
9. A method of preparing a high performance, low odor, low VOC polypropylene whisker modified material according to any of claims 1-8, characterized in that: the method comprises the following steps:
(1) weighing polypropylene, crystal whisker, a toughening agent, a compatilizer, an amino modified odor adsorbent, a main antioxidant and an auxiliary antioxidant, mixing the materials in a high-speed mixer for 1-3min, and uniformly mixing to obtain a premix;
(2) adding the premix into a main feeding port of a double-screw extruder, carrying out melt extrusion, granulating and drying to obtain the polypropylene whisker modified material with high performance, low odor and low VOC.
10. The high performance, low odor, low VOC polypropylene whisker modified material of claim 9, wherein: the conditions of the melt extrusion step are as follows: the temperature of the first zone is 80-120 ℃, the temperature of the second zone is 190-; the length-diameter ratio of the twin-screw extruder is 40: 1.
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