Microdispersion of polyphenylene ether in polyphenylene sulfide/polyphenylene ether alloy compatibilized by styrene‐co‐glycidyl methacrylate

Abstract

ABSTRACT:The polyphenylene sulfide/polyphenylene ether (PPS/PPE) alloy is desired for use as an engineering plastic. In this case, microdispersion of PPE in the PPS matrix is preferable. We have developed a new method for the preparation of a PPS/PPE alloy that has microdispersed PPE in the PPS matrix. The reactive processing of PPS with PPE gave a PPS/PPE alloy with a microdispersed PPE in the PPS matrix, using styrene-co-glycidyl methacrylate copolymer (SG) as a compatibilizer. Although the general properties of the PPS/PPE alloy did not depend on the PPE particle size, tensile strength at the weld part is found to be strongly dependent on PPE particle size. Only the finely dispersed PPE system gave tensile strength at the weld part comparable that of PPS. The PPS/PPE alloy shows superior property to PPS at elevated temperature and, moreover, attains the an advantage of precise molding.

High performance reactive blends composed of poly(p-phenylene sulfide) and ethylene copolymers

“…It was demonstrated that the so-compatibilized interface in PPS/LCP blends significantly contributes to the enhancement of tensile properties and impact strength. 10 The second group of PPS blends is formed with conventional engineering plastics with thermal stability between 100-140 1C for long usage such as crystalline polyamide (PA) [11][12][13] and poly(ethylene terephthalate) (PET), [14][15][16] and amorphous poly(phenylene ether) 17 and polycarbonate (PC). 18 It is reported that (20/80) PPS/PA4,6 (T m of PA4,6¼295 1C) blends have a miscible region, which appears under a high shear rate at 310-320 1C 13 although the solubility parameter of PPS is extremely high (12.5 (cal cm À3 ) 0.5 ) compared with other polymers and this makes it difficult for PPS to have miscibility with other polymers.…”

Overall Investigation of Poly (Phenylene Sulfide) from Synthesis and Process to Applications—A Review

“…Similarly, the microdispersion of polyphenylene ether in PPS/PPE alloy can also affect the mechanical behaviors. [143] In this study, it showed that the weld strength of PPS/SG/ PPE was found to be significantly decreased because of the increasing particle diameter.…”

“…Thus, many approaches have been proposed to overcome these disadvantages of PPS. To modify PPS by physical blending or alloying with other polymers or with other reinforcement materials is the most common and widespread method in industrial and academic domains currently …”

“…They demonstrated that the flexural modulus and interlaminar shear strength (ILSS) of continuous unidirectional carbon fiber composites with a blended matrix of ESF/PPS = 10/90 were obviously higher than those of composites with the pure PPS matrix. Similarly, the microdispersion of polyphenylene ether in PPS/PPE alloy can also affect the mechanical behaviors . In this study, it showed that the weld strength of PPS/SG/PPE was found to be significantly decreased because of the increasing particle diameter.…”

“…To modify PPS by physical blending or alloying with other polymers or with other reinforcement materials is the most common and widespread method in industrial and academic domains currently. [28,[137][138][139][140][141][142][143][144][145] Thus, in this section, we introduce the modifications according to the following three aspects: 1) PPS blending with other polymers; 2) PPS mixing with nanotubes at the nanoscale range; and 3) other additives in blending.…”