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首页> 外文期刊>Journal of Applied Polymer Science >Nonisothermal Crystallization of Poly(phenylene sulfide) in Presence of Molten State of Crystalline Polyamide 6
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Nonisothermal Crystallization of Poly(phenylene sulfide) in Presence of Molten State of Crystalline Polyamide 6

机译：结晶聚酰胺6熔融态下聚苯硫醚的非等温结晶

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摘要

The nonisothermal crystallization and melting behavior of a poly(phenylene sulfide) (PPS) blend with polyamide 6 (PA6) were investigated by differential scanning calorimetry.The results indicate that the crystallization parameters for PPS become modified to a greater extent than those for PA6 in the blends.The PPS and PA6 crystallize at high temperature as a result of blending.The crystallization temperatures of PPS in its blends are always higher than that of pure PPS and are independent of the melting temperature and the residence time at that temperature.The PPS crystallization peak becomes narrower and the crystallization temperature shifts to a higher temperature,suggesting a faster rate of crystallization as a result of blending with PA6.This enhancement in the nucleation of PPS could be attributed to the possible presence of interfacial interactions between the component polymers to induce heterogeneous nucleation.On the other hand,the increase in the crystallization temperature of PA6 can be attributed to the heterogeneous nucleation provided by the already crystallized PPS.The heterogeneous nucleation induced by interfacial interactions depends on the temperature at which the polymers remain in the molten state and on the storage time at this temperature.
机译：通过差示扫描量热法研究了聚苯硫醚（PPS）与聚酰胺6（PA6）共混物的非等温结晶和熔融行为，结果表明，在PPS中，PPS的结晶参数比PA6的结晶参数有更大程度的改变。由于共混，PPS和PA6会在高温下结晶.PPS在其共混物中的结晶温度始终高于纯PPS的结晶温度，并且与熔融温度和在该温度下的停留时间无关。与PA6共混的结果是结晶峰变窄并且结晶温度移至更高的温度，这表明结晶速度更快.PPS成核的这种增强可能归因于组分聚合物之间可能存在界面相互作用。引起异相成核。另一方面，结晶温度升高PA6的不均匀成因可以归因于已经结晶的PPS提供的异相成核。界面相互作用引起的异相成核取决于聚合物保持熔融状态的温度以及该温度下的储存时间。

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