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SPS/Nylon blends

Blends of two immiscible polymers are created to yield a material with properties that could not be obtained otherwise. Each component of the blend overcomes the property deficiencies of the other component of the blend. In the case of syndiotactic polystyrene (SPS)/polyamide (PA nylon) blends, the blends have improved strength, ductility, and creep versus SPS formulations, and the blends have improved dimensional stability and flow versus nylon compounds. Other attributes of the SPS/nylon blends are low specific gravity (lower weight parts), high thermal diffusivity (low cycle time), excellent electrical properties, good chemical resistance, and excellent United States Council for Automotive Research (USCAR) electric wiring components test performance. In this chapter, the composition, properties, and applications for SPS/ nylon blends will be reviewed. [Pg.338]

In this section, the polyamides (PAs) used in SPS/nylon blends are briefly explained. This is followed by a summary of SPS/nylon blend formulations the compositions of SPS/nylon blends that are claimed in patents are listed and finally SPS/nylon blends detailed in journal articles are described. [Pg.338]

The vast majority of SPS/nylon blends to date have been formulated using nylon 6 and nylon 6,6. nylon 6 and nylon 6,6 have essentially the same properties the difference is in the way these nylons are synthesized. Nylon 6 is made by ring opening polymerization of the monomer caprolactam, while nylon 6,6 is made from two monomers adipoyl chloride and hexamethylene diamine. The synthesis, properties, and applications of nylons are described in [1],... [Pg.339]

To date, the practical formulations of SPS/nylon blends have consisted of SPS dispersed in a nylon matrix. There are 10, 20, and 30 weight percent glass fiber-reinforced SPS/nylon blend commercial products. [Pg.339]

Since nylon is the matrix phase, the glass fiber-reinforced SPS/nylon blends contain glass fibers that are surface treated to be compatible with nylon. [Pg.339]

Table 16.1 contains a list of compositions for SPS/nylon blends that have been claimed in patents. No attempt was made to identify patents that might include SPS/nylon blends in the teachings. [Pg.339]

SPS/Nylon Blend Compositions Described in Technical Journals... [Pg.339]

The possibility of a synergistic combination of properties for SPS/nylon blends has been recognized, and, therefore, the structural and physical properties [46] as well as the morphology and mechanical properties [47] of PA 6,6 (nylon 6,6)/SPS blends have been the subject of two research articles. Below is a suimnary of the mechanical properties, rheological properties, moisture response, dimensional stability, USCAR test results, and solvent resistance of SPS/nylon blends that make these blends attractive for some applications, such... [Pg.339]

TABLE 16.1 SPS/Nylon Blend Compositions Claimed in Patents... [Pg.340]

SPS/nylon blends impact modified with maleic anhydride-fnnctionalized poly (styrene-b-(ethylene-co-butylene)-b-styrene) MA-SBS, or MA-SEBS... [Pg.340]

SPS/nylon blends impact-modified with oil extended impact modifier and containing domain-forming agent Brominated SPS/nylon blends... [Pg.340]

SPS/nylon blend compositions for making fiber and films CompatibUized SPS/nylon blend SPS/nylon blends to make a nanocomposite A resin composition that can be SPS/nylon that contains a graft copolymer... [Pg.340]

A thermally developable photosensitive layered material SPS/nylon blends impact-modified with a rubber having a specific... [Pg.340]

CompatibUized SPS/nylon blends with a copper stabilizer SPS/nylon blend CompatibUized with acid-modified polyphenylene... [Pg.340]

Impact-modified SPS/nylon blend that is CompatibUized with a compatibilizer that can react with nylon and is compatible with SPS A process for making an SPS/nylon blend containing block copolymer A vibration damping engineering plastic A flame-retardant SPS/nylon blend... [Pg.340]

SPS/nylon blends with functionalized reinforcement SPS/nylon blend with styrenic block copolymer SPS/nylon blend with impact modifier and optionally filler A process for making a nanocomposite masterbatch Impact-modified SPS/nylon blend with reinforcement and mineral filler for improved gloss... [Pg.340]

SPS/nylon/clay nanocomposite composition nylon/SPS with maleic anhydride polystyrene compatibilizer SPS/nylon blend containing two different nylons and a compatibUizer SPS/nylon blends formulated for fibers and films... [Pg.340]

The room temperature dry-as-molded (DAM) tensile stress-strain curves for 30% glass fiber-reinforced SPS/nylon blends versus 30% glass fiber-reinforced... [Pg.340]

Preparation and use in SPS/nylon blends of maleic anhydride-grafted 35... [Pg.341]

It is well known that nylon-based materials absorb water and that this affects properties and results in moisture growth. In this section, the amount of moisture absorbed and resultant moisture growth for glass fiber-reinforced SPS/ nylon blends is compared with glass fiber-reinforced nylon. [Pg.343]

Figure 16.4 Moisture absorption of 30% glass fiber-reinforced SPS/nylon blends and 30% glass fiber-reinforced nylon exposed to 90°C and 95% r.h. Figure 16.4 Moisture absorption of 30% glass fiber-reinforced SPS/nylon blends and 30% glass fiber-reinforced nylon exposed to 90°C and 95% r.h.
Glass fiber-reinforced SPS/nylon blends have shown a synergistic combination of two aspects of dimensional stability for some applications. The first is out-of-the-mold dimensional stability, or the ability to hold the dimensions of the mold during injection molding, and the second is creep resistance, or resistance to permanent deflection under load at elevated temperatures. These are illustrated briefly below. [Pg.346]

Figure 16.6 Skew of a wall of a divided tray, right after injection molding with glass fiber-reinforced SPS/nylon blends versus glass fiber-reinforced SPS and PBT. Figure 16.6 Skew of a wall of a divided tray, right after injection molding with glass fiber-reinforced SPS/nylon blends versus glass fiber-reinforced SPS and PBT.
There are three tests in the PF-1 standard that could degrade plastics and hence affect the performance of the electrical interconnect system components. Since a major application for SPS/nylon blends is in automotive under-the-hood connectors, it is important that these blends perform well in these tests. [Pg.347]

See other pages where SPS/Nylon blends is mentioned: [Pg.338]    [Pg.339]    [Pg.339]    [Pg.339]    [Pg.339]    [Pg.339]    [Pg.340]    [Pg.340]    [Pg.340]    [Pg.341]    [Pg.341]    [Pg.342]    [Pg.343]    [Pg.343]    [Pg.344]    [Pg.345]    [Pg.345]    [Pg.346]    [Pg.346]    [Pg.346]    [Pg.347]    [Pg.347]   
See also in sourсe #XX -- [ Pg.327 ]



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