CN115716959B - Low-odor polypropylene-polyamide alloy material and preparation method thereof - Google Patents
Low-odor polypropylene-polyamide alloy material and preparation method thereof Download PDFInfo
- Publication number
- CN115716959B CN115716959B CN202211472438.0A CN202211472438A CN115716959B CN 115716959 B CN115716959 B CN 115716959B CN 202211472438 A CN202211472438 A CN 202211472438A CN 115716959 B CN115716959 B CN 115716959B
- Authority
- CN
- China
- Prior art keywords
- polypropylene
- polyamide
- alloy material
- low
- odor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000004952 Polyamide Substances 0.000 title claims abstract description 47
- 229920002647 polyamide Polymers 0.000 title claims abstract description 47
- 239000000956 alloy Substances 0.000 title claims abstract description 34
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000004743 Polypropylene Substances 0.000 claims abstract description 80
- 229920001155 polypropylene Polymers 0.000 claims abstract description 42
- -1 polypropylene Polymers 0.000 claims abstract description 38
- RKLXSINPXIQKIB-UHFFFAOYSA-N trimethoxy(oct-7-enyl)silane Chemical compound CO[Si](OC)(OC)CCCCCCC=C RKLXSINPXIQKIB-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000002156 mixing Methods 0.000 claims abstract description 19
- 229920005629 polypropylene homopolymer Polymers 0.000 claims abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- 238000001125 extrusion Methods 0.000 claims abstract description 9
- 239000011347 resin Substances 0.000 claims abstract description 9
- 229920005989 resin Polymers 0.000 claims abstract description 9
- 238000010008 shearing Methods 0.000 claims abstract description 9
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 7
- 230000007062 hydrolysis Effects 0.000 claims abstract description 6
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000000843 powder Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 23
- 239000003963 antioxidant agent Substances 0.000 claims description 12
- 230000003078 antioxidant effect Effects 0.000 claims description 11
- 239000000155 melt Substances 0.000 claims description 10
- 239000012745 toughening agent Substances 0.000 claims description 10
- 239000000314 lubricant Substances 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 239000008367 deionised water Substances 0.000 claims description 4
- 229910021641 deionized water Inorganic materials 0.000 claims description 4
- 238000001035 drying 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
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 229920005606 polypropylene copolymer Polymers 0.000 claims description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 2
- 239000005977 Ethylene Substances 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 239000002671 adjuvant Substances 0.000 claims description 2
- 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
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 2
- 239000000194 fatty acid Substances 0.000 claims description 2
- 229930195729 fatty acid Natural products 0.000 claims description 2
- 150000004665 fatty acids Chemical class 0.000 claims description 2
- 235000019359 magnesium stearate Nutrition 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000002530 phenolic antioxidant Substances 0.000 claims description 2
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 150000007970 thio esters Chemical class 0.000 claims description 2
- 239000001993 wax Substances 0.000 claims description 2
- 238000005303 weighing Methods 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
- 238000012661 block copolymerization Methods 0.000 claims 1
- 239000002861 polymer material Substances 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 19
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 7
- 239000002131 composite material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- NMEPHPOFYLLFTK-UHFFFAOYSA-N trimethoxy(octyl)silane Chemical compound CCCCCCCC[Si](OC)(OC)OC NMEPHPOFYLLFTK-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009965 odorless effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical group [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000002552 dosage form Substances 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920001911 maleic anhydride grafted polypropylene Polymers 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000011895 specific detection Methods 0.000 description 1
- 229920006345 thermoplastic polyamide Polymers 0.000 description 1
- YUYCVXFAYWRXLS-UHFFFAOYSA-N trimethoxysilane Chemical compound CO[SiH](OC)OC YUYCVXFAYWRXLS-UHFFFAOYSA-N 0.000 description 1
Abstract
The invention relates to the technical field of high polymer materials, in particular to a low-odor polypropylene-polyamide alloy material and a preparation method thereof, wherein the alloy material comprises the following components: homo-polypropylene, co-polypropylene, polyamide, PP/PA interfacial compatilizer and auxiliary agent; the preparation method of the PP/PA interfacial compatilizer comprises the steps of firstly mixing (7-octen-1-yl) trimethoxysilane with water for hydrolysis, then uniformly mixing the hydrolyzed (7-octen-1-yl) trimethoxysilane with polypropylene resin powder and polyamide slices, and then obtaining the PP/PA interfacial compatilizer through melt shearing mixing, extrusion bracing and granulating. The invention adopts the PP/PA interfacial compatilizer prepared by (7-octene-1-yl) trimethoxysilane as the treating agent, and can improve the compatibility of PP and PA on the premise of low odor per se, thereby obtaining the low odor polypropylene-polyamide alloy material.
Description
Technical Field
The invention relates to the technical field of high polymer materials, in particular to a low-odor polypropylene-polyamide alloy material and a preparation method thereof.
Background
The polypropylene resin raw material has the characteristics of excellent electrical insulation property, excellent chemical stability to acid and alkali, small moisture absorption rate, wide production and processing window, low price and the like, so that the polypropylene resin raw material is widely applied to the fields of household articles, electronic appliances and the like, but the rigidity and toughness balance of polypropylene is poor. The polyamide is one of typical engineering plastics, has the advantages of high strength, good toughness and the like, and the alloy material with good comprehensive performance can be obtained by adding the polyamide into the polypropylene material to prepare the alloy material.
However, because polypropylene is a nonpolar material and polyamide is a polar material, the polypropylene and the polyamide are not compatible thermodynamically, and the alloy material prepared by blending modification is easy to delaminate or the final performance is difficult to achieve the expected effect. In the prior art, the compatibility of polypropylene and maleic anhydride is mainly improved by adding polypropylene grafted maleic anhydride, for example, a polypropylene composite material disclosed in patent document published by publication No. CN113004608B, publication No. 2022, no. 07 and No. 12 is prepared from the following raw materials in parts by weight: 45-90wt% of polypropylene matrix resin, 5-50wt% of long carbon chain polyamide thermoplastic elastomer, 0.2-2 wt% of high molecular weight maleic anhydride functionalized liquid polybutadiene, 0.1-2 wt% of antioxidant, 0.2-2 wt% of maleic anhydride grafted polypropylene and 0.2-2 wt% of lubricant.
However, the odor of polypropylene grafted maleic anhydride is great, resulting in a relatively great odor of the final material, which is to be further improved.
Disclosure of Invention
In order to solve the problem of great smell of the prior alloy materials in the background art. The invention provides a low-odor polypropylene-polyamide alloy material, which comprises the following components: homo-polypropylene, co-polypropylene, polyamide, PP/PA interfacial compatilizer and auxiliary agent;
the preparation method of the PP/PA interfacial compatilizer comprises the following steps of
Firstly, mixing (7-octen-1-yl) trimethoxysilane with water for hydrolysis, then uniformly mixing the hydrolyzed (7-octen-1-yl) trimethoxysilane with polypropylene resin powder and polyamide slices, and then carrying out melt shearing mixing, extrusion bracing and granulating to obtain the PP/PA interfacial compatilizer.
In one embodiment, the hydrolysis method of the (7-octen-1-yl) trimethoxysilane comprises the steps of mixing the (7-octen-1-yl) trimethoxysilane with deionized water at 60 ℃ according to a mass ratio of 1:1-4 and standing for 1h;
and (7-octene-1-yl) trimethoxysilane is firstly mixed with the polypropylene resin powder at 80 ℃ and 300r/min after hydrolysis, then polyamide slices are added, stirring and mixing are continued at 300r/min, and finally the mixed material is added into a double-screw extruder to be subjected to melt shearing and mixing at 230 ℃, bracing extrusion and granulating to obtain the PP/PA interfacial compatilizer.
In one embodiment, the ratio of the homo-polypropylene, the co-polypropylene, the polyamide, the PP/PA interfacial compatilizer and the auxiliary agent is (48-68) according to the weight parts: 15: (10-30): (3-8): 4.
in one embodiment, the isotacticity of the homo-polypropylene is greater than or equal to 96%, and the melt flow rate (230 ℃ C., 2.16 kg) is 1-5 g/10min. The greater the isotacticity of the homo-polypropylene, the smaller the melt index, and the better the mechanical properties.
In one embodiment, the polypropylene copolymer is medium-melt high-resistance block copolymerized polypropylene, the melt flow rate (230 ℃ C., 2.16 kg) is 5-15g/10min, and the notched impact strength of the simply supported beam is more than 20KJ/M 2 . The proper melt flow rate of the polypropylene copolymer is beneficial to molding and processing, and the larger the notch impact of the simply supported beam is, the better the toughness of the material is.
In one embodiment, the adjuvants include toughening agents, antioxidants, and lubricants.
In one embodiment, the antioxidant is at least one of a hindered phenolic antioxidant, a thioester antioxidant, and a phosphite antioxidant.
In one embodiment, the lubricant is at least one of polyethylene wax, polypropylene wax, calcium stearate, ethylene bis fatty acid amide, zinc stearate, and magnesium stearate.
In one embodiment, the toughening agent has a melt flow rate (190 ℃ C., 2.16 kg) of greater than 20g/10min. The addition amount of the toughening agent is small, the high melt flow rate is beneficial to fully dispersing the toughening agent in the composite material system, and the toughness of the whole composite material is improved.
The invention also provides a preparation method of the low-odor polypropylene-polyamide alloy material, which comprises the following steps:
firstly, weighing homo-polypropylene, co-polypropylene, polyamide, PP/PA interfacial compatilizer and auxiliary agent according to weight percentage; then adding all materials into a stirrer to be uniformly mixed to obtain a premix;
then adding the premix into a parallel double-screw extruder from a main feeding hopper, and performing shearing, melting, blending and extrusion on all the component materials in the parallel double-screw extruder, wherein the processing temperature of the double-screw extruder is 190-230 ℃;
and finally, cooling, drying and granulating the material strips discharged from the die of the parallel double-screw extruder to obtain the low-odor polypropylene-polyamide alloy material.
Compared with the prior art, the invention has the following technical principles and effects:
1. after the (7-octene-1-yl) trimethoxysilane is hydrolyzed, three methoxy groups in the molecule are respectively substituted by hydroxy groups. At this time, one end of the hydroxyl group on the hydrolyzed (7-octen-1-yl) trimethoxysilane molecule can form an intermolecular hydrogen bond with an amide bond on the polyamide molecule, and the 7-octen-1-yl methylene long chain molecule on the other end of the hydrolyzed (7-octen-1-yl) trimethoxysilane molecule can be entangled and combined with a polypropylene molecular chain, so that the hydrolyzed (7-octen-1-yl) trimethoxysilane connects the polypropylene and the polyamide together, and plays a role in compatibilizing the alloy materials of the polypropylene and the polyamide.
2. Because the PP/PA interfacial compatilizer has lower odor, the invention improves the compatibility of PP and PA by the PP/PA interfacial compatilizer, thereby preparing the low-odor polypropylene-polyamide alloy material.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the following description will be made in connection with the technical solutions in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a preparation method of a low-odor polypropylene-polyamide alloy material, which comprises the following steps:
uniformly mixing the weighed homo-polypropylene, the co-polypropylene, the toughening agent, the PP/PA interfacial compatilizer, the polyamide, the antioxidant and the lubricant according to the proportion, and then adding the mixture into a parallel double-screw extruder from a main feeding port to enable all component materials to be subjected to shearing, melting, blending and extrusion in the parallel double-screw extruder, wherein the processing temperature of the double-screw extruder is one zone 190 ℃, two zones 230 ℃, three zones 230 ℃, four zones 230 ℃, five zones 230 ℃, six zones 230 ℃, seven zones 220 ℃, eight zones 210 ℃, nine zones 210 ℃, ten zones 210 ℃ and a machine head 230 ℃; finally, cooling, drying and granulating the material strips discharged from the die of the parallel double-screw extruder to obtain the low-odor polypropylene-polyamide alloy material.
The invention also provides the formulations of the examples and comparative examples shown in the following table:
TABLE 1 dosage form (wt%) for each example and comparative example
Wherein, except for the other description, the raw material components in the examples and comparative examples in Table 1 are identical in kind selection, and the components are specifically:
the polypropylene is PP 501SF product with isotacticity not less than 96% and melt index less than 5g/10min.
The copolymer polypropylene is PP SP179 with a melt index and high resistance, a melt flow rate (230 ℃ C., 2.16 kg) of 5-15g/10min, and a notched impact of a simple beam of more than 20KJ/M 2 。
The toughening agent is a POE8402 high-fluidity product manufactured by the Dow of the United states, and the melt flow rate (190 ℃ C., 2.16 kg) of the toughening agent is more than 20g/10min.
The polyamide is a model PA 6M 2400 product manufactured by Guangdong New Conmeida.
The antioxidant is Li Anlong 1010+ Li Anlong 168.
The lubricant is calcium hanwei stearate.
Examples 1 to 4, and comparative example 2, the compatibilizing agent used was a PP/PA interfacial compatibilizing agent, which was designated PP/PA-M61776 for the sake of distinguishing from the compatibilizing agent of comparative example below, and was prepared by the following method:
(1) Pouring deionized water at 60 ℃ into a beaker filled with (7-octen-1-yl) trimethoxysilane, standing for 1h, and keeping the beaker for later use after hydrolysis, wherein the mass ratio of the (7-octen-1-yl) trimethoxysilane to the deionized water is 1:3;
(2) Adding 2 parts of polypropylene resin powder into a high-speed mixer heated to 80 ℃, then adding 0.02 part of hydrolyzed (7-octen-1-yl) trimethoxysilane, stirring at the speed of 300r/min for 3 minutes, and soaking and uniformly distributing the hydrolyzed (7-octen-1-yl) trimethoxysilane on the surface of the polypropylene resin; then, 1 part of the polyamide chips was added thereto, and stirring was continued at 300r/min for 5 minutes. And adding the mixed material into a double-screw extruder, and carrying out melt shearing mixing, extrusion bracing and granulating at the temperature of 230 ℃ to obtain the PP/PA interfacial compatilizer.
Wherein (7-octen-1-yl) trimethoxysilane is a product with the model number M61776 produced by Shanghai Michael chemical technology Co., ltd, and the purity of the trimethoxysilane is more than 90%.
The compatibilizing agent used in comparative example 3 was PP/PA-CG-8830, and the preparation method of PP/PA-CG-8830 differs from that of the above-described PP/PA-M61776 only in that the treatment agent of PP/PA-M61776 was (7-octen-1-yl) trimethoxysilane (model M61776), while the treatment agent of PP/PA-CG-8830 was octyl trimethoxysilane (model CG-8830), and the balance remained the same.
The compatibilizer used in comparative example 4 was PP-grafted maleic anhydride, which was specifically a model CMG9801 product manufactured by Shanghai Ri liter.
The preparation methods of the above examples and comparative examples are:
uniformly mixing the weighed homo-polypropylene, the co-polypropylene, the toughening agent, the compatilizer, the polyamide, the antioxidant and the lubricant according to the proportion shown in Table 1, and then adding the mixture into a parallel double-screw extruder from a main feeding port to enable all the component materials to be subjected to shearing, melting, blending and extrusion in the parallel double-screw extruder, wherein the processing temperature of the double-screw extruder is one zone 190 ℃, two zones 230 ℃, three zones 230 ℃, four zones 230 ℃, five zones 230 ℃, six zones 230 ℃, seven zones 220 ℃, eight zones 210 ℃, nine zones 210 ℃, ten zones 210 ℃ and a machine head 230 ℃; and finally, cooling, drying and granulating the material strips discharged from the die of the parallel double-screw extruder to obtain the alloy material.
The alloy materials prepared in examples and comparative examples were subjected to the following performance index tests under the same test conditions, and the test results are shown in table 2 below:
wherein, the odor grade is carried out according to the public PV3900 standard, and the specific detection method comprises the following steps: the samples in the closed container were stored at 80 ℃ for 2 hours, cooled to 60 ℃, then judged according to the rating score grade of the PV3900 standard, and a statistical overall judgment was obtained by more than 5 persons participating in the evaluation. 1 is odorless, 2 is odorless but not irritating; 3 are classified as having a distinct odor but no irritation; 4 are classified as having a pungent odor; 5 is classified as having a strong pungent odor; 6 are classified as having an intolerable odor.
The material detection results obtained in each example and comparative example are shown in table 2 below:
table 2 table of experimental results for each example and comparative example
| Notched impact of simply supported beam | Flexural modulus | Odor rating | |
| Test standard/method | ISO179-1 | ISO178 | Public PV3900 standard |
| Example 1 | 7.2 | 1286 | 2.9 |
| Example 2 | 8.3 | 1374 | 3.4 |
| Example 3 | 7.1 | 1882 | 3.1 |
| Example 4 | 7.4 | 1527 | 3.3 |
| Comparative example 1 | 5.3 | 1290 | 2.2 |
| Comparative example 2 | 7.9 | 1056 | 3 |
| Comparative example 3 | 5.9 | 1416 | 3.2 |
| Comparative example 4 | 7.2 | 1508 | 4.7 |
From a comparison of examples 1 and 2, it can be seen from a combination of tables 1 and 2 that as the ratio of PP/PA interfacial compatilizer components increases, the compatibility of polypropylene and polyamide components is better, and the mechanical properties of the alloy material as a whole are better.
As can be seen from a comparison of example 1 and example 3, as the proportion of the polyamide component increases, the flexural modulus of the alloy material is significantly improved as a stiffening effect by adding the polyamide material to the composite material, since the polyamide material has a much better stiffness than the polypropylene material.
As can be seen from the comparison of comparative example 1 and example 1, the polypropylene and polyamide components do not achieve effective compatibilization without the PP/PA interfacial compatibilizer component, and the mechanical properties of the alloy material as a whole are reduced.
As can be seen from a comparison of comparative example 2 and example 4, the non-polyaramid component results in a final alloy material having a very low flexural modulus due to the lower stiffness of the polypropylene material itself.
As can be seen from the comparison of comparative example 3 and example 4, octyl trimethoxy silane CG-8830 is used for replacing (7-octene-1-yl) trimethoxy silane M61776 as a treating agent of the PP/PA interfacial compatilizer, and because one end of the octyl trimethoxy silane linked with polypropylene consists of a methylene-methyl structure, the methylene-methyl structure molecular chain has good flexibility and is easy to slip when being stretched and stressed; the end of the (7-octene-1-yl) trimethoxysilane linked with the polypropylene is composed of a methylene-olefinic bond (double bond) structure, the double bond structure at the tail end is relatively high in rigidity, the conformation is not easy to change when the stress is applied, so that the bonding force between the polyamide and the polypropylene is high, and the integral mechanical property of the final alloy material is better.
The odor grade of comparative example 4 was 4.7, which is a material having a more severe pungent odor, and comparing it with example 4, it can be seen that the substitution of PP grafted maleic anhydride for the PP/PA interfacial compatibilizer as the compatibilizer of the alloy resulted in a final alloy material having a very strong odor due to the very strong odor of the PP grafted maleic anhydride.
In conclusion, the PP/PA interfacial compatilizer prepared from the (7-octen-1-yl) trimethoxysilane serving as the treating agent can improve the compatibility of PP and PA on the premise of low odor per se, so that the low-odor polypropylene-polyamide alloy material is obtained.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (6)
1. A low odor polypropylene-polyamide alloy material characterized by comprising the following components: homo-polypropylene, co-polypropylene, polyamide, PP/PA interfacial compatilizer and auxiliary agent; according to the weight portions of the agent, the ratio of the homo-polypropylene, the co-polypropylene, the polyamide, the PP/PA interfacial compatilizer and the auxiliary agent is (48-68): 15: (10-30): (3-8): 4, a step of;
the preparation method of the PP/PA interfacial compatilizer comprises the following steps of
Mixing (7-octene-1-yl) trimethoxysilane and deionized water at 60 ℃ according to the mass ratio of 1:1-4, and standing for 1h; after hydrolysis, the (7-octene-1-yl) trimethoxysilane is firstly mixed with the polypropylene resin powder at 80 ℃ and 300r/min under stirring, then polyamide slices are added, the mixture is continuously mixed under stirring at 300r/min, and finally the mixture is added into a double-screw extruder to be subjected to melt shearing mixing, extrusion bracing and granulating at 230 ℃ to obtain the PP/PA interfacial compatilizer; wherein the said
The isotacticity of the homo-polypropylene is more than or equal to 96 percent, the melt flow rate is 230 ℃ and 2.16kg is 1-5 g/10min; the polypropylene copolymer is a medium-melt high-resistance block copolymerization polypropylene, the melt flow rate is 230 ℃, the 2.16kg is 5-15g/10min, and the notched impact strength of a simply supported beam is more than 20kJ/m 2 。
2. The low odor polypropylene-polyamide alloy material of claim 1, wherein the adjuvants include a toughening agent, an antioxidant, and a lubricant.
3. The low odor polypropylene-polyamide alloy material of claim 2, wherein the antioxidant is at least one of a hindered phenolic antioxidant, a thioester antioxidant, and a phosphite antioxidant.
4. The low odor polypropylene-polyamide alloy material of claim 2, wherein the lubricant is at least one of polyethylene wax, polypropylene wax, calcium stearate, ethylene bis fatty acid amide, zinc stearate, and magnesium stearate.
5. The low odor polypropylene-polyamide alloy material of claim 2, wherein said toughening agent has a melt flow rate of 190 ℃, 2.16kg greater than 20g/10min.
6. A method for producing the low-odor polypropylene-polyamide alloy material according to any one of claims 1 to 5, comprising the steps of:
firstly, weighing homo-polypropylene, co-polypropylene, polyamide, PP/PA interfacial compatilizer and auxiliary agent according to weight percentage; then adding all materials into a stirrer to be uniformly mixed to obtain a premix;
then adding the premix into a parallel double-screw extruder from a main feeding hopper, and performing shearing, melting, blending and extrusion on all the component materials in the parallel double-screw extruder, wherein the processing temperature of the double-screw extruder is 190-230 ℃;
and finally, cooling, drying and granulating the material strips discharged from the die of the parallel double-screw extruder to obtain the low-odor polypropylene-polyamide alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211472438.0A CN115716959B (en) | 2022-11-23 | 2022-11-23 | Low-odor polypropylene-polyamide alloy material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211472438.0A CN115716959B (en) | 2022-11-23 | 2022-11-23 | Low-odor polypropylene-polyamide alloy material and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115716959A CN115716959A (en) | 2023-02-28 |
| CN115716959B true CN115716959B (en) | 2024-03-29 |
Family
ID=85256024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211472438.0A Active CN115716959B (en) | 2022-11-23 | 2022-11-23 | Low-odor polypropylene-polyamide alloy material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115716959B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3766131A (en) * | 1971-05-11 | 1973-10-16 | Liquid Nitrogen Processing | Glass reinforced thermoplastic compositions with metallocene couplingagents |
| US4639398A (en) * | 1983-03-07 | 1987-01-27 | Neste Oy | Compound film containing olefin |
| EP0775718A2 (en) * | 1995-11-22 | 1997-05-28 | Union Carbide Chemicals & Plastics Technology Corporation | Process for preparing elastomeric compounds from granular elastomers and polymers |
| CN102276914A (en) * | 2011-07-15 | 2011-12-14 | 成都理工大学 | Method for preparing organic microcrystal white mica/nylon6/polypropylene (PP)composite material |
| CN102850783A (en) * | 2011-06-29 | 2013-01-02 | 合肥杰事杰新材料股份有限公司 | Nylon 6/polypropylene composite material and preparation method thereof |
| CN103059556A (en) * | 2011-10-19 | 2013-04-24 | 合肥杰事杰新材料股份有限公司 | Polyamide composition and preparation method thereof |
| CN103342859A (en) * | 2013-07-22 | 2013-10-09 | 南京立汉化学有限公司 | Low-odor and low-VOC (Volatile Organic Compounds) glass fiber reinforced polypropylene composite material and preparation method thereof |
| CN105916931A (en) * | 2014-01-14 | 2016-08-31 | 大日本印刷株式会社 | Resin composition, reflector, lead frame with reflector, and semiconductor light-emitting device |
| CN109666216A (en) * | 2018-12-17 | 2019-04-23 | 会通新材料(上海)有限公司 | A kind of long glass fiber-reinforced polypropylene/polyamide alloy material and preparation method thereof of high-intensitive, low smell |
| CN111410792A (en) * | 2020-06-01 | 2020-07-14 | 天津美亚化工有限公司 | High-specific-strength modified polypropylene-based composite material and preparation method thereof |
| CN113801401A (en) * | 2021-09-30 | 2021-12-17 | 江苏金发科技新材料有限公司 | Polypropylene/polyamide alloy and preparation method and application thereof |
| CN115232404A (en) * | 2022-09-06 | 2022-10-25 | 金旸（厦门）新材料科技有限公司 | Precipitation-resistant high-appearance phosphorus-nitrogen flame-retardant polypropylene composite material and preparation method thereof |
-
2022
- 2022-11-23 CN CN202211472438.0A patent/CN115716959B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3766131A (en) * | 1971-05-11 | 1973-10-16 | Liquid Nitrogen Processing | Glass reinforced thermoplastic compositions with metallocene couplingagents |
| US4639398A (en) * | 1983-03-07 | 1987-01-27 | Neste Oy | Compound film containing olefin |
| EP0775718A2 (en) * | 1995-11-22 | 1997-05-28 | Union Carbide Chemicals & Plastics Technology Corporation | Process for preparing elastomeric compounds from granular elastomers and polymers |
| CN102850783A (en) * | 2011-06-29 | 2013-01-02 | 合肥杰事杰新材料股份有限公司 | Nylon 6/polypropylene composite material and preparation method thereof |
| CN102276914A (en) * | 2011-07-15 | 2011-12-14 | 成都理工大学 | Method for preparing organic microcrystal white mica/nylon6/polypropylene (PP)composite material |
| CN103059556A (en) * | 2011-10-19 | 2013-04-24 | 合肥杰事杰新材料股份有限公司 | Polyamide composition and preparation method thereof |
| CN103342859A (en) * | 2013-07-22 | 2013-10-09 | 南京立汉化学有限公司 | Low-odor and low-VOC (Volatile Organic Compounds) glass fiber reinforced polypropylene composite material and preparation method thereof |
| CN105916931A (en) * | 2014-01-14 | 2016-08-31 | 大日本印刷株式会社 | Resin composition, reflector, lead frame with reflector, and semiconductor light-emitting device |
| CN109666216A (en) * | 2018-12-17 | 2019-04-23 | 会通新材料(上海)有限公司 | A kind of long glass fiber-reinforced polypropylene/polyamide alloy material and preparation method thereof of high-intensitive, low smell |
| CN111410792A (en) * | 2020-06-01 | 2020-07-14 | 天津美亚化工有限公司 | High-specific-strength modified polypropylene-based composite material and preparation method thereof |
| CN113801401A (en) * | 2021-09-30 | 2021-12-17 | 江苏金发科技新材料有限公司 | Polypropylene/polyamide alloy and preparation method and application thereof |
| CN115232404A (en) * | 2022-09-06 | 2022-10-25 | 金旸（厦门）新材料科技有限公司 | Precipitation-resistant high-appearance phosphorus-nitrogen flame-retardant polypropylene composite material and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115716959A (en) | 2023-02-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104945837B (en) | A kind of ABS/PLA alloy resin compositions for 3D printing and preparation method thereof | |
| CN109957239A (en) | A kind of thermoplasticity enhancing biology base PA56/PA66 alloy and preparation method thereof | |
| CN102532874B (en) | Thermo-oxidative ageing-resistant nylon/acrylonitrile-butadiene-styrene resin mixed material | |
| CN109337312B (en) | Polylactic acid composite material and preparation method thereof | |
| CN101709125B (en) | Polystyrene/polyolefin nano composite material based on interface compatibilization and preparation method thereof | |
| CN108570182B (en) | Glass fiber reinforced polypropylene alloy and preparation method thereof | |
| CN1995124A (en) | High tenacious polypropylene material for manufacturing central conditioner air-discharge hose and its preparation method | |
| CN114213794B (en) | Heat-resistant dimensionally stable styrene-based alloy composition and preparation method thereof | |
| CN106751783A (en) | High visocity nylon 6 composite prepared by a kind of melting extrusion chain extending reaction and preparation method thereof | |
| CN104592730A (en) | Polylactic acid/polyester alloy and preparation method thereof | |
| CN108250586A (en) | A kind of PP/PMMA alloy materials and its preparation method and application | |
| CN112143103A (en) | Cage-type silsesquioxane modified polypropylene composite material and preparation method thereof | |
| CN111995820A (en) | Polypropylene material and preparation method thereof | |
| CN105237943A (en) | Rigidity-reinforced polyformaldehyde composite material and preparation method thereof | |
| CN114410091A (en) | High-temperature-resistant impact-resistant high-strength modified polylactic acid material and preparation method thereof | |
| CN112745592B (en) | Styrene composition and application and preparation method thereof | |
| CN114369347A (en) | Degradable flow modification auxiliary agent and preparation method and application thereof | |
| CN115716959B (en) | Low-odor polypropylene-polyamide alloy material and preparation method thereof | |
| CN103571182A (en) | High-fluidity toughened filling nylon and preparation method thereof | |
| CN107523002A (en) | A kind of special high oil resistant high-performance ABS alloy material of battery cell case | |
| CN113717471B (en) | High-surface tension polypropylene composite material and preparation method thereof | |
| CN112430392B (en) | PA/ABS alloy with soft touch and preparation method thereof | |
| CN112662112B (en) | Polypropylene composite material with long-acting heat-oxygen aging resistance and low odor and stickiness resistance and preparation method thereof | |
| CN104672751A (en) | ABS/PET composite material and preparation method thereof | |
| CN114891331A (en) | Toughened polylactic acid/starch blending material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |