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Table 1 Mean value of surface roughness parameters (Ra) and root-mean-square (RMS) height of the samples

From: Preparation and ageing-resistant properties of polyester composites modified with functional nanoscale additives

Samples

Ra/nm

RMS height/nm

Polyester without nano-TiO2

0-h ageing

10.147

190.67

1500-h ageing

145.22

2105.00

Polyester/2.0 wt% nano-TiO2 composite

0-h ageing

11.305

165.72

1500-h ageing

49.534

523.00

  1. Before and after 1500-h UV ageing.

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