Polypropylene/polyamide alloy and preparation method and application thereof
A polypropylene and polyamide technology, applied in the field of polypropylene/polyamide alloy and its preparation, can solve the problems of weak bonding force, limited improvement of mechanical properties and heat resistance of the alloy, etc., to improve compatibility, improve Mechanical properties and heat resistance, the effect of improving the overall performance
Active Publication Date: 2021-12-17
JIANGSU KINGFA SCI & TECH ADVANCED MATERIALS CO LTD +1
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
The weakly polar part of the compatibilizer molecule is mainly combined with the polypropylene matrix through van der Waals force and other non-covalent bonds, and its binding force is relatively weak, which has a limited effect on improving the mechanical properties and heat resistance of the alloy.
Method used
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Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1～15
[0040] Examples of polypropylene / polyamide alloys of the present invention, the formulas of Examples 1 to 15 are shown in Table 1, and the preparation method is as follows: add each component in a blender according to the proportion and mix them evenly. Feed into a twin-screw extruder, melt extrude, and granulate to obtain the polypropylene / polyamide alloy. Among them, the temperature settings of each heating zone from the feeding port to the die head are: 200°C for zone 1, 215°C for zone 2 to zone 3, 225°C for zone 4 to zone 5, 235°C for zone 6 to zone 9, and 230°C for zone 10. ℃; the degree of vacuum is -0.06MPa.
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Abstract
The invention discloses a polypropylene / polyamide alloy as well as a preparation method and an application thereof, and relates to the technical field of high polymer materials. The polypropylene / polyamide alloy is prepared from the following components in parts by weight: 41.3 to 74.3 parts of polypropylene, 15 to 55 parts of polyamide and 3 to 10 parts of a compatilizer, the structural formula of the compatilizer is shown in the specification, n is an integer between 0 and 8, and R is alkyl or alkoxy. The material with the structure is selected as the compatilizer, so that the mechanical property and the heat resistance of the polypropylene / polyamide alloy are greatly improved, and the polypropylene / polyamide alloy is applicable to the fields of automobiles, household appliances, electric tools and the like.
Description
technical field [0001] The invention relates to the technical field of polymer materials, in particular to a polypropylene / polyamide alloy and its preparation method and application. Background technique [0002] Polypropylene has the advantages of low density, low price, low water absorption and easy processing. It is widely used in industries such as automobiles, home appliances and electric tools. However, compared with polyamide and other engineering plastics, polypropylene also has the disadvantages of low mechanical properties and insufficient heat resistance, so it is difficult to apply to some fields that require high mechanical properties and heat resistance, such as the peripheral application of automobile engines. In order to overcome the inherent shortcomings of polypropylene, blending polypropylene and polyamide to prepare alloys is an ideal solution. However, polypropylene and polyamide belong to weak polar polymers and strong polar polymers respectively, and ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): C08L23/12C08L23/14C08L77/02C08L77/06C08L5/16
CPCC08L23/12C08L77/02C08L23/14C08L2205/08C08L2201/08C08L77/06C08L5/16
Inventor 倪梦飞卢先博程文超
Owner JIANGSU KINGFA SCI & TECH ADVANCED MATERIALS CO LTD
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