Spectrophotometric determination of aluminium in polyethylene resin with chrome azurol S;

The paper mainly introduced the manufacturing process, inspection method, characteristic and use of polyethylene powder coatings painted steel pipe (including shape tube, storage tank and connector) ,together with the physical property of polyethylene resin.

Attentive matters in viscosity number determination of polyvinyl chloride resin dilute solution;

Viscosity number determination of polyvinyl chloride resin dilute solution is one of the important indexes on polyvinyl chloride resin and determines its various uses.

The apparent morphology,the state of aggregation and the particle diameters of polyvinyl chloride resins by different polymerizations are investigated by transmiting electron microscopy and X-ray diffraction patterns.

The application of chromatograph working station to the analysis of residue VCM content in PVC resin;

Analysis on factors influencing the quality of PVC resin;

Precautions against "fish eye" occurring in the production of PVC resin;

Measures to reduce the viscosity of PVC paste resins;

Application of laser diffraction and scattering particle detection technology in analyzing particle size of PVC paste resins;

Experiments on increasing the unit volume production capacity of polymerizer for PVC paste resin;

Pilot study of D-hydantoinase immobilization by polystyrene resin;

A novel solid phase extractant, thioacetamide modified polystyrene resin(TAA-PS),was prepared from polyvinylbenzylamine resin and thiacetamide via the Mannich reaction.

Analyzing domestic general purpose polystyrene resin with melt flow index between6～10g/10min,it developed GPPS-200D productbrand in regard to processing client requirement and plant characteristics,determined physicalproperty parameter as well as pro-duction process operation condition ofGPPS-200D products and implemented try-run as well as productprocessing application test.