Graphene collaborative continuous glass fiber reinforced halogen-free flame-retardant weather-proof PPO/PA alloy material and preparation method thereof

Abstract

The invention discloses a graphene collaborative continuous glass fiber reinforced halogen-free flame-retardant weather-proof PPO/PA alloy material, wherein the material is prepared from the followingcomponents in parts by weight: 360-480 parts of PPO, 240-320 parts of PA, 200-400 parts of continuous glass fibers, 5-15 parts of graphene, 10-20 parts of a compatilizer, 50-80 parts of a tougheningagent, 80-120 parts of a flame retardant, 6-10 parts of an antioxidant, 3-5 parts of a composite light stabilizer, 4-8 parts of a lubricant, and 5-15 parts of a metal oxide. By addition of a graphenecollaborative continuous glass fiber reinforced PPO/PA alloy subjected to pre-dispersion treatment, and with combination of various functional auxiliary agents, the material not only has excellent rigidity and impact toughness but also has excellent weather resistance and flame retardant performance, the surface of an injection molded preparation part has no glass fibers exposed, the application of the glass fiber reinforced PPO/PA alloy in different fields can be satisfied, the material can be directly molded through injection molding, the production efficiency is high, and the used preparation part after pulverization can be recycled.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a graphene synergistic continuous glass fiber reinforced halogen-free flame-retardant and weather-resistant PPO / PA alloy material and a preparation method thereof. Background technique [0002] Polyphenylene ether (PPO) and polyamide (PA) are one of the five major engineering plastics respectively. PPO is an amorphous material with high lipophilicity, and has excellent heat resistance, electrical insulation and creep resistance at high temperatures, but its impact Poor toughness, difficult to process and not resistant to non-polar solvents; PA is a crystalline material with high lipophilicity, which has excellent solvent resistance, easy processing, and high mechanical strength, but its dimensional stability is poor, heat resistance is low, PPO / PA alloy combines the advantages of PPO and PA materials to make up for their shortcomings. The comprehensive performance is e...

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Problems solved by technology

[0005] Graphene, as a two-dimensional carbon crystal discovered in recent years, has outstanding and excellent thermal conductivity, mechanical properties and electrical properties, and its nanostructure is also very unique. Graphene has a large specific surface area, and a small amount of addition can The performance of the polymer matrix has a significant impact, but the graphene surface is in an inert state, and the interface compatibility with other media is poor, and there is a strong van der Waals force between the graphene layers, and they are easy to aggregate with each other. The improvement of the performance of graphene-reinforced polymer composites depends on the improvement of the interfacial bonding strength. The most critical factor to control the interfacial bonding strength is the surface treatment of graphene, increasing the effective functional groups on the surface of graphene, and introducing different functional groups through surface treatment methods. , so as to effectively improve the interfacial bonding between graphene and polymer, but the application in PPO modified system has not been reported yet

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