Study on morphology of compatibilized poly (vinyl chloride)/ultrafine polyamide‐6 blends by styrene–maleic anhydride

Xiong, Chuanxi; Lu, Shengjun; Wang, Tao; Hong, Yan; Chen, Tao; Zhou, Zhiyong

doi:10.1002/app.21798

Cited by 6 publications

(3 citation statements)

References 8 publications

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“…But its sensitivity to notched impact, high temperature and poor processibility limits its applications. PVC products are restricted to environments not exceeding 80°C and to non structural applications because of low strength 1. Hence the polymer is often mixed with other polymers to improve its properties.…”

Section: Introductionmentioning

confidence: 99%

Modification of the mechanical and thermal properties of PVC by semi IPN formation with poly(butyl acrylate)

Chakrabarti

Chakraborty

2008

J of Applied Polymer Sci

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Semi1 and semi2 interpenetrating polymer networks of poly(vinyl chloride) PVC and in situ formed poly(butyl acrylate) (PBA) have been synthesized and characterized using diallyl phthalate (DAP) and ethylene glycol dimethacrylate (EGDM) as the crosslinkers of PVC and PBA, respectively. These two types of IPNs have been compared with respect to their mechanical and thermal properties. The semi1 IPNs displayed a decrease in their mechanical parameters and the physical properties as well, while in contrast, the semi2 IPNs exhibited a marginal increase in the corresponding values when compared to the crosslinked PVC in the case of semi1 IPN and linear PVC in case of semi2 IPN. The representative samples of semi1 and semi2 IPNs revealed a two-stage-degradation typical of PVC while confirming the increased stability of the samples with higher onset temperature of degradation. The softening characteristics as detected by thermomechanical analysis are in conformity with their mechanicals.

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Section: Introductionmentioning

confidence: 99%

Modification of the mechanical and thermal properties of PVC by semi IPN formation with poly(butyl acrylate)

Chakrabarti

Chakraborty

2008

J of Applied Polymer Sci

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“…This is attributable to the fact that the size of the dispersed SEBS drops was significantly reduced owing to a decrease in interfacial tension as a result of an enhancement in compatibility upon addition of 6 phr SEBS-g-MAH during melt blending of PVC and SEBS. 15,16…”

Section: Morphological Studiesmentioning

confidence: 99%

Compatibilisation of blends of poly(vinyl chloride) and poly(styrene-block-(ethylene-co-butadiene)-block–styrene) with maleic anhydride grafting

Chen¹,

Sheng²,

Peng³

et al. 2006

Plastics, Rubber and Composites

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The mechanical properties of blends of poly (vinyl chloride) (PVC) and poly (styrene-block-(ethylene-co-butadiene)-block-styrene) (SEBS) were investigated using maleic anhydride grafted SEBS (SEBS-g-MAH) as a compatibiliser. The results indicated that addition of a small amount of SEBS-g-MAH during melt blending significantly improved the mechanical properties of PVC/ SEBS blends. The impact strength of the compatibilised PVC/SEBS blends was found to reach a maximum of 53 . 5¡2 . 78 KJ m 22 at room temperature and a maximum of 32 . 8¡1 . 66 KJ m 22 at 220uC at an SEBS-g-MAH loading level of 6 phr. The two glass transition temperatures of the components in the blends converged to some degree upon addition of SEBS-g-MAH for compatibilisation. At room temperature the dynamic storage modulus of the compatibilised blends was higher than that of the blends without compatibilisation. The size of the dispersed phase domains in the blends was appreciably reduced on addition of SEBS-g-MAH during melt blending according to scanning electron microscopy. All the above observations revealed that SEBS-g-MAH enhanced the compatibility between PVC and SEBS in the PVC/SEBS blends.

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“…Several attempts have been made to prepare LPA6 for blending with the polymers of low processing temperatures. Xiong et al prepared super‐fine PA6 powders with a melting point of 189°C via jet‐milling . Afshari et al reduced the crystallinity and size of crystalline grain of PA6 by complexation between gallium chloride (GaCl 3 ) and PA6 .…”

Section: Introductionmentioning

confidence: 99%

A new method to prepare low melting point polyamide‐6 and study crystallization behavior of polyamide‐6/calcium chloride complex by rheological method

Liu

Zheng

et al. 2014

J of Applied Polymer Sci

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A new method to prepare low melting point polyamide-6 (LPA6) by complex reaction of calcium chloride (CaCl 2 ) and polyamide-6 (PA6) in a co-rotating twin screw extruder was reported. We employed a new rheological method to study the crystallization behavior of PA6/CaCl 2 complex and the mechanism of confined crystallization of PA6. Compared with differential scanning calorimetry (DSC), this method was more capable of detecting crystalline information. What's more, it was also an effective method for studying mechanism of confined crystallization. From the results of X-ray diffraction, DSC, infrared spectroscopy, rheology, and mechanical properties, the complex reaction of CaCl 2 with the carbonyl oxygen atom in the amide group disrupted the intermolecular hydrogen bonding and confined the mobility of PA6 molecules. This could significantly reduce the crystallinity and melting temperature of PA6, and improve tensile strength and notched Izod impact strength.

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Study on morphology of compatibilized poly (vinyl chloride)/ultrafine polyamide‐6 blends by styrene–maleic anhydride

Cited by 6 publications

References 8 publications

Modification of the mechanical and thermal properties of PVC by semi IPN formation with poly(butyl acrylate)

Modification of the mechanical and thermal properties of PVC by semi IPN formation with poly(butyl acrylate)

Compatibilisation of blends of poly(vinyl chloride) and poly(styrene-block-(ethylene-co-butadiene)-block–styrene) with maleic anhydride grafting

A new method to prepare low melting point polyamide‐6 and study crystallization behavior of polyamide‐6/calcium chloride complex by rheological method

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