Polystyrene (ultra-high molecular weight)

NegotiableUpdate on 05/06

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Nature of the Manufacturer: Producers

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Overview

Based on the advantages of high melt flowability and low-cost processing brought by a wide molecular weight distribution, this product focuses on economic universality and widely empowers: blending modification with lower molecular weight PS for toughening and strengthening; $r $n $r $n Injection Molding: High fluidity supports rapid production of transparent daily necessities (light transmittance>90%), such as tableware and toy shells.

Product Details

Ultra high molecular weight polystyrene (UHMWPS), i.e. weight average molecular weight（）Polystyrene homopolymers that are much higher than general PS are commonly used in academia/industryStarting from 10000 (4 × 10 ⁵), the grade can reach–(5-10 million), compared to regular GPPS（The molecular weight of (about 100000 to 300000) exhibits significant differences, resulting in unique aggregated structures and properties, while also causing a significant increase in processing difficulty.

1、 Definition and molecular weight classification

The molecular formula is still， CAS number 9003-53-6; The main chain of the molecule is a saturated carbon chain with a side hanging benzene ring, and high entanglement density is the core source of its performance;
Unlike HIPS (Rubber Modified Toughening), UHMWPS is mostly a pure homopolymer, and its performance improvement comes fromMolecular weight effectRather than blending/grafting.
Based on the high melt flowability and low-cost processing advantages brought by the wide molecular weight distribution, this product focuses on economic universality and widely empowers:
Blending modification: blending modification with lower molecular weight PS to enhance toughness and strength;
Injection molding: High fluidity supports rapid production of transparent daily necessities (light transmittance>90%), such as tableware and toy shells.