GB/T 24148.6-2009
Plastics.Unsaturated-polyester resins.Part 6:Determination of reactivity at 130℃ (English Version)

Standard No.

GB/T 24148.6-2009

Language

Chinese, Available in English version

Release Date

2009

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 24148.6-2009

Scope

This part of GB/T 24148 specifies the method for determining the reactivity of unsaturated polyester resins. - When the solution of unsaturated polyester resin and initiator is heated in an oil bath at 130°C, the time required for the temperature of the resin to rise. From 80°C to 140°C. From 80°C to maximum temperature. - The maximum temperature reached by the reaction. - The speed of the reaction can be expressed by the tangent value at the inflection point of the temperature-time curve obtained experimentally. This method is especially suitable for the determination of unsaturated polyester resins whose molding temperature exceeds 100°C.

GB/T 24148.6-2009 Referenced Document

• ISO 15038:1999 Plastics - Organic-perester crosslinking agents for unsaturated-polyester thermosetting materials - Determination of active-oxygen content
• ISO 3219:1993 Plastics; polymers/resins in the liquid state or as emulsions or dispersions; determination of viscosity using a rotational viscometer with defined shear rate

GB/T 24148.6-2009 history

• 2009 GB/T 24148.6-2009 Plastics.Unsaturated-polyester resins.Part 6:Determination of reactivity at 130℃

GB/T 24148.6-2009 -All Parts