NIST 聚合物物性与关联式

连接 NIST 热物性、文献光学常数与厂商牌号数据，比较聚合物的温度响应和力学性质，继续分析拉伸实验。

Compare specific polymer grades using manufacturer technical data sheets, NIST temperature-dependent correlations and published optical constants. Examine density, tensile modulus and yield measurements with test conditions; analyse imported stress–strain data separately.

NIST polymer and composite properties

Source correlations for Polyamide (Nylon), Mylar PET, Kapton polyimide, PTFE, Kevlar and polymer composites. Values are evaluated within each source temperature range; records retain coefficients, source fit error and references.

光学常数

Published PMMA optical constants by wavelength, sample conditions and publication.

Commercial grade measurements

LyondellBasell grade data: density, tensile modulus and yield measurements with test standards and original technical data sheets.