Poly(Butylene Terephthalate)

Gallucci, Robert R.; Patel, B. K.

doi:10.1002/0470090685.ch8

Cited by 19 publications

(28 citation statements)

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“…Poly (butylene terephthalate) (PBT) finds wide range of applications in automotive, electrical and packing industries due to the exclusive properties including high dimensional stability, excellent electrical features, and good surface appearance. 1,2 To improve mechanical and thermal properties, glass fiber is the most widely used reinforcing material in PBT and its blends. 3–21…”

Section: Introductionmentioning

confidence: 99%

The mechanical and thermal properties of chopped basalt fiber-reinforced poly (butylene terephthalate) composites: Effect of fiber amount and length

Arslan

Doğan

2019

Journal of Composite Materials

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In this study, the effects of basalt fiber (BF) amount and initial fiber length on tensile, flexural and impact properties of poly (butylene terephthalate) (PBT)-based composites are studied. The effect of BF amount on thermomechanical and thermal properties of the composites is also investigated using dynamic mechanical analysis, differential scanning calorimeter and thermal gravimetric analysis. The BF is used at concentrations of 5, 10, 20 and 30 wt% and with different initial lengths of 3, 6 and 12 mm under constant loading of BF (20 wt%). According to the test results, the addition of BF improves the tensile strength and thermal stability of PBT at 20 and 30 wt% loading. Flexural strength and elastic modulus increase steadily as the added amount of BF increases. The addition of BF favors crystallization up to 10 wt% loading. No remarkable effect of initial fiber length is observed on the mechanical properties of the composites.

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Section: Introductionmentioning

confidence: 99%

The mechanical and thermal properties of chopped basalt fiber-reinforced poly (butylene terephthalate) composites: Effect of fiber amount and length

Arslan

Doğan

2019

Journal of Composite Materials

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“…It is widely used in electrical and electronic products as well as in automotive and transportation applications because of its combination of advantageous properties (1). In the past, the good flame-retardancy performance required for most applications was achieved using halogenated flame retardants (2).…”

Section: Introductionmentioning

confidence: 99%

Competition in aluminium phosphinate-based halogen-free flame retardancy of poly(butylene terephthalate) and its glass-fibre composites

et al. 2014

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Aluminium diethylphosphinate (AlPi-Et) and inorganic aluminium phosphinate with resorcinol-bis(di-2,6-xylyl phosphate) (AlPi-H+RXP) were compared with each other as commercially available halogen-free flame retardants in poly(butylene terephthalate) (PBT) as well as in glass-fibre-reinforced PBT (PBT/GF). Pyrolysis behaviour and flame retardancy performance are reported in detail. AlPi-H+RXP released phosphine at very low temperatures, which can become a problem during processing. AlPi-Et provided better limiting oxygen index (LOI) values and UL 94 ratings for bulk and PBT/GF than AlPi-H+RXP. Both flame retardants acted via three different flame-retardancy mechanisms in bulk as well as in PBT/GF, namely, flame inhibition, increased amount of char, and a protection effect of the char. AlPi-Et was more efficient in decreasing the total heat evolved of PBT in the cone calorimeter test. AlPi-H+RXP reduced the peak heat release rate of PBT more efficiently than AlPi-Et. An optimum loading of AlPi-Et in PBT/GF was found, which was below the supplier's recommendation. This loading provides a maximum increase in LOI and a maximum decrease in total heat evolved.

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“…Poly(butylene terephthalate) (PBT) is one of the most important engineering thermoplastics due to its combination of advantageous properties 1. Therefore, PBT is widely used in transportation engineering as well as in electrical and electronic devices.…”

Section: Introductionmentioning

confidence: 99%

Phosphorus Polyester — an Alternative to Low‐Molecular‐Weight Flame Retardants in Poly(Butylene Terephthalate)?

Brehme

Köppl

Schartel

et al. 2012

Macro Chemistry & Physics

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Pyrolysis, fire behaviour and mechanical properties of a blend of poly(butylene terephthalate) (PBT) with a phosphorus polyester (PET‐P‐DOPO) are investigated and compared with PBT/aluminium diethylphosphinate (AlPi‐Et) composites. The PBT/PET‐P‐DOPO is immiscible and exhibits gas‐phase and condensed‐phase activity, whereas AlPi‐Et in PBT results mainly in flame inhibition. Only higher loadings of AlPi‐Et yield significant condensed‐phase activity. Using the same phosphorus content, PBT/PET‐P‐DOPO and PBT/AlPi‐Et exhibit similar reductions in fire load (22%) and flame spread (17% assessed by fire growth rate, FIGRA), compared with PBT. In contrast to AlPi‐Et, the addition of PET‐P‐DOPO does not decrease the tensile strength of PBT. Thus, PET‐P‐DOPO is an interesting alternative to low‐molecular‐weight flame retardants.

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Poly(Butylene Terephthalate)

Cited by 19 publications

References 0 publications

The mechanical and thermal properties of chopped basalt fiber-reinforced poly (butylene terephthalate) composites: Effect of fiber amount and length

The mechanical and thermal properties of chopped basalt fiber-reinforced poly (butylene terephthalate) composites: Effect of fiber amount and length

Competition in aluminium phosphinate-based halogen-free flame retardancy of poly(butylene terephthalate) and its glass-fibre composites

Phosphorus Polyester — an Alternative to Low‐Molecular‐Weight Flame Retardants in Poly(Butylene Terephthalate)?

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