描述

导电防静电TPU材料

附着力好、粘度低、抗弯曲性好、耐磨性好、光泽度高、耐候性好

导电防静电TPU材料

产品细节

产品细节

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导电TPU使用的温度范围很广，大多数产品可在-40-80℃范围内长期使用，短期使用温度可达120℃。TPU大分子链段的软段结构决定了其低温性能。TPU的低温性能由软段的玻璃化转变起始温度和软段的软化温度决定。玻璃化转变范围取决于硬段的含量以及软段和硬段的相分离程度。随着硬段含量的增加和相分离程度的降低，软段的玻璃化转变范围将相应扩大，从而导致低温性能的恶化。如果使用与硬段相容性较差的聚醚作为软段，TPU的低温柔韧性可以得到改善。当软段的相对分子量增加或TPU退火时，软段和硬段之间的不相容程度也会增加。在高温下，性能主要由硬链段维持，产品硬度越高，使用温度越高。此外，除扩链剂的用量外，扩链剂的类型也会影响其高温性能

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Conductive Static Protection TPU Material

Excellent adhesion,
Low viscosity,
Good flex resistance,
Excellent abrasion resistance,
High gloss,
Excellent weather resistance.

Conductive Static Protection TPU Material

Product Details

Conductive static protection TPU material

Conductive TPU use a wide range of temperature, most products can be used in the range of -40 – 80 ℃ for a long time, short-term use temperature up to 120 ℃. TPU macromolecular chain segment structure of the soft segment determines its low temperature performance. The low temperature performance of TPU is determined by the glass transition onset temperature of the soft segment and the softening temperature of the soft segment. The glass transition range depends on the content of the hard segment and the degree of phase separation of the soft and hard segments. With the increase of hard segment content and the decrease of phase separation, the glass transition range of soft segment will be widened accordingly, which will lead to the deterioration of low temperature performance. The low temperature flexibility of TPU can be improved if the polyether, which is less compatible with the hard segment, is used as the soft segment. When the relative molecular weight of the soft segment increases or TPU is annealed, the degree of incompatibility between soft and hard segments will also increase. At high temperature, the performance is mainly maintained by hard chain segments, and the higher the hardness of the product, the higher its use temperature. In addition, the high temperature performance is affected by the type of chain extender in addition to the amount of chain extender.

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