Long glass fiber reinforced PA66 Composites were prepared bymelt impregnation method. The viscosity of resin melt, impregnationdegree of prepreg, fiber fracture rate and mechanical properties ofthe composites were tested and observed by scanning electronmicroscope (SEM), The effects of different contents of tougheningagent POE-g-MAH and poe-g-gma on the properties of the compositeswere studied. The results show that: with the increase of thecontent. The results show that both tougheners can increase theimpact strength of long glass fiber reinforced PA66 Composites, andenhance the bonding degree between resin and fiber interface,especially POE-g -- GMA, which can effectively improve themechanical properties of the composites. Key words: long fiberreinforced PA66 Composites; Toughening agent: mechanicalproperties; Interface combination Chinese Library ClassificationNo.: tq327. 1 + 1 dol: 10. 13543 / J
Bhxbzr.2017.02.004 introduction long fiber reinforced polyamide66 (PA66) composites have good mechanical properties, dimensionalstability, heat resistance and chemical corrosion resistance, andare widely used in the fields of electronics, automobile, medicaldevices, aerospace, etc. However, xupa66 has strong notchsensitivity and weak impact resistance, which limits the furtherdevelopment of composites to a certain extent. A lot of researchwork has been done on this problem. At present, most of the methodsused are adding elastomer or toughening resin grafted with polarmonomer into fiber reinforced PA66 composite system as tougheningagent, such as maleic anhydride grafted styrene ethylene butenestyrene block copolymer (SEBS. G. MA), maleic anhydride graftedethylene propylene diene monomer (MA. EPDM), maleic anhydridegrafted ethylene propylene diene monomer (MA Maleic anhydridegrafted polypropylene (PP-g-MAH), maleic anhydride grafted ethyleneoctene copolymer (POE-g-MAH) - 7] and so on. Du Gang et al. AndYang et al. Studied the effect of Poe -- g-mah on the properties oflong fiber reinforced PA66 Composites. The results showed that whenthe mass fraction of Poe -- g-mah was 10%, the impact strength ofthe composites increased about 40%, but the tensile strengthdecreased about 15%. In this paper, ethylene octene copolymergrafted glycidyl methacrylate (POE-g -- GMA) with higher reactiveactivity was used as toughener to study the effect of POE-g -- GMAcontent on the rheological properties and fiber immersion of PA66.Et: 2016-11-03 first author: female, born in 1992, master's contactperson e -- mail: heyd @ mail. BUCT. Edu. CN, At the same time, theeffects of Poe. G-mah and poe-g-gma on the mechanical properties ofthe composites were studied| Experimental part 1.1 experimentalmaterials and equipment
PA66, epr27. Glass fiber, se45402400tex, fiber diameter
