Spherical aluminum nitride-expanded graphite reinforced high-thermal-conductivity PP/PA6 composite material and preparation method thereof
A technology of expanded graphite and composite materials, which is applied in the field of spherical aluminum nitride-expanded graphite reinforced high thermal conductivity PP/PA6 composite materials and its preparation, can solve the problems of high cost, narrow application range, mechanical strength and durability of PBT and PPS plastics. The temperature capacity cannot meet the demand and other problems, and achieve the effects of low cost, wide application range, improved mechanical properties and thermal conductivity
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0031] The invention also discloses a preparation method of the spherical aluminum nitride-expanded graphite reinforced high thermal conductivity PP / PA6 composite material, which includes the following steps:
[0032] (1) Weigh the PA6 resin, PP resin, expanded graphite, spherical aluminum nitride, compatibilizer and antioxidant, respectively by weight, and set aside;
[0033] (2) Add PA6 resin, expanded graphite and spherical aluminum nitride to the twin-screw extruder, melt and extrude to obtain premix one; add PP resin, compatibilizer and antioxidant to the twin-screw extruder During exit, melt and extrude to obtain premix 2;
[0034] (3) Add the first premix and the second premix into a twin-screw extruder, and melt and extrude to obtain the high thermal conductivity PP / PA6 composite; the screw speed is 350r / min , The temperature is 200℃-240℃.
[0035] PP materials are widely used because of their low cost, light weight, and easy processing and molding. However, due to their poor...
Example Embodiment
[0040] Example 1
[0041] The high thermal conductivity PP / PA6 composite material of this embodiment is made of raw materials including the following parts by weight:
[0042]
[0043] Among them, the thermally conductive filler includes 15 parts of expanded graphite and 10 parts of spherical aluminum nitride, with particle sizes of 1250 mesh and 250 mesh, respectively; the compatibilizer is 3 parts of maleic anhydride grafted polypropylene and 2 parts of SEBS grafted maleic A blend of acid anhydride copolymers; the antioxidant is a blend of 0.3 parts of antioxidant 1010 and 0.5 parts of antioxidant 168.
[0044] The preparation method of a spherical aluminum nitride-expanded graphite reinforced high thermal conductivity PP / PA6 composite material of embodiment 1 includes the following steps:
[0045] (1) Add the weighed PA6 resin, expanded graphite and spherical aluminum nitride to the twin-screw extruder, melt and extrude to obtain premix one; and combine the weighed PP resin and com...
Example Embodiment
[0047] Example 2
[0048] The high thermal conductivity PP / PA6 composite material of this embodiment is made of raw materials including the following parts by weight:
[0049]
[0050] Among them, the thermally conductive filler includes 5 parts of expanded graphite and 20 parts of spherical aluminum nitride, the particle sizes of which are 1250 mesh and 250 mesh respectively; the compatibilizer is 3 parts of maleic anhydride grafted polypropylene and 2 parts of SEBS grafted maleic A blend of acid anhydride copolymers; the antioxidant is a blend of 0.3 parts of antioxidant 1010 and 0.5 parts of antioxidant 168.
PUM
Property | Measurement | Unit |
---|---|---|
Thermal conductivity | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap