Polycarbonate testing method

Abstract

The invention discloses a polycarbonate testing method, which comprises the following steps that: A) testing the volatile ingredients of polycarbonate, and determining the amount of volatile ingredients in the polycarbonate; B) testing a PDI (Poly-Dispersity Index) and pH (Potential of Hydrogen), and carrying out the second step when the amount of the volatile ingredients is small than 10, the PDIis smaller than 2.8 and a pH value is 6.2-7.3; C) carrying out through-machine evaluation testing: when MI (Melt Index)% is less than 10% and an IMP level is A or B or C, carrying out the third step;D) carrying out poaching testing; E) carrying out thermo-oxidative aging testing: when a mechanical property retention rate after poaching aging testing is greater than or equal to 75% and a thermo-oxidative aging testing color change [Delta]E value is smaller than 3, carrying out the fourth step; F) carrying out damp-heat aging testing; and / or G) carrying out xenon lamp ageing testing. The invention aims to provide a simple polycarbonate detection process for enterprises, and whether polycarbonate conforms to the production requirements of production even special application occasions or not can be quickly and accurately detected and analyzed.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a polycarbonate testing method. Background technique [0002] Polycarbonates are polymers containing multiple carbonate groups and are generally obtained by reacting polyphenols such as bisphenol A (BPA) with phosgene (phosgene). Polycarbonates have many desirable properties (such as thermal stability, good electrical properties and high impact strength) that make them valuable in commercial and industrial applications such as electronic components, automotive components or medical devices. [0003] After purchasing polycarbonate raw materials in the factory, a series of tests are generally carried out to test whether the raw materials of this batch meet the requirements. However, these tests are relatively random, not scientific and logical, so that the real material performance cannot be tested, or the test steps are many and complicated, which wastes time and delays...

AI Technical Summary

Problems solved by technology

However, these tests are relatively random, not scientific and logical, so that the real material performance cannot be tested, or there are many and complicated test steps, which waste time and delay production, etc.