Journal
POLYMER BULLETIN
Volume 79, Issue 9, Pages 7939-7951Publisher
SPRINGER
DOI: 10.1007/s00289-021-03897-2
Keywords
HIPS-g-MAH; PA66; PPO alloy; Mechanical properties; Coefficient of friction; Wear rate
Categories
Funding
- Henan Academy of Sciences [190404005]
- Jiaozuo innovation and entrepreneurship leading team project [2020TD005]
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The addition of HIPS-g-MAH compatibilizer to the PA66/PPO alloy significantly enhances the mechanical properties and reduces the tendency for brittle fracture. Moreover, as the weight ratio of HIPS-g-MAH compatibilizer increases, the crystallization temperature of the PA66/PPO alloy decreases.
HIPS-g-MAH compatibilizer and the other three compatibilizers were prepared and added to the polyamide 66/polyphenylene oxide (PA66/PPO) alloy. The FT-IR spectra showed that the maleic anhydride (MAH) had successfully undergone grafting on the high impact polystyrene (HIPS). The effect of the MAH ratio in the HIPS-g-MAH compatibilizer, the HIPS-g-MAH compatibilizer weight ratio, and the PA66/PPO ratio on the mechanical properties of PA66/PPO alloy was systematically studied. The results showed that the PA66/PPO alloy possessed the optimal mechanical properties when the HIPS-g-MAH compatibilizer weight ratio was 7% and the MAH ratio in HIPS-g-MAH compatibilizer ranged 4% similar to 8%. The fracture morphologies of PA66/PPO alloy with different HIPS-g-MAH compatibilizer weight ratios were characterized by scanning electron microscope (SEM). The PA66/PPO alloy without HIPS-g-MAH compatibilizer showed a typical brittle fracture. The mechanical properties of PA66/PPO alloys with the HIPS-g-MAH compatibilizer were improved. In addition, the crystallization temperature of PA66/PPO alloy decreased with the increase in the HIPS-g-MAH compatibilizer weight ratio. The PA66/PPO ratio also played an essential role in the PA66/PPO alloy properties. The coefficient of friction and wear rate both increased with the increase in the PPO ratio.
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