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首页> 外文会议>Regional Conference of the Polymer Processing Society >Effect of Calcium Carbonate Particle Size and Content on Polyamide 6 Processing and Properties
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Effect of Calcium Carbonate Particle Size and Content on Polyamide 6 Processing and Properties

机译：碳酸钙粒径和含量对聚酰胺6加工和性能的影响

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Three different types of calcium carbonates, including a nanosize one, were incorporated into polyamide 6, at different contents (5, 10 and 20 wt%) using a corotating twin-screw extruder connected to a Haake torque rheometer. Spherical-like nanosize CaCO3 particles and needle-like precipitated CaCO3 showed to consist of calcite crystals, whereas needle-like naturally occurring CaCO3 particles consisted of both calcite and aragonite. Specimens were injection molded and subjected to tensile, bending and impact testing. XRD, SEM and DSC analyses were also carried out. Both conventional and nanocalcium carbonate reduced torque, with the nano resulting in lower values. All investigated calcium carbonates increased PA6 tensile and flexural strength and elastic modulus.
机译：使用连接到Haake扭矩流变仪的芯片双螺杆挤出机，在不同的含量（5,10和20wt％），将三种不同类型的碳酸钙掺入聚酰胺6中。球状纳米型CaCO3颗粒和针状沉淀的CaCO 3显示由方解石晶体组成，而针状天然存在的CaCO 3颗粒由方解石和化石组成。样品注射成型并进行拉伸，弯曲和冲击试验。还进行了XRD，SEM和DSC分析。常规和纳米钙碳酸纳米钙均未降低扭矩，用纳米产生较低的值。所有研究的碳酸钙都增加了PA6拉伸和弯曲强度和弹性模量。

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