GB/T 27797.4-2013
Fibre-reinforced plastics.Methods of producing test plates.Part 4:Moulding of prepregs (English Version)

Standard No.: GB/T 27797.4-2013
Language: Chinese, Available in English version
Release Date: 2013
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 27797.4-2013

Scope: This part of GB/T 27797 specifies the use of heat and pressure and different equipment (such as hot presses, air presses, hydraulic presses and vacuum bag presses) to form multi-layer unidirectional fiber prepreg or fabric (prepreg) test panels method, applicable to all reinforcements and resins. This method is applicable to thermosetting resin prepregs and thermoplastic resin prepregs. When preparing test panels, the prepregs are placed in the required order and direction, compacted and cured under heat and pressure/vacuum conditions. The prepared test panels It should be machined into samples. The standard plate made by this method can be used to analyze its components, namely reinforcing materials, additives and resins, etc., and can also be used to identify the comprehensive quality of the final product.

GB/T 27797.4-2013 Referenced Document

GB/T 1033 Test method for density and relative density of plastics
GB/T 2577-2005 Test method for resin content of glass fiber reinforced plastics
GB/T 27797.1 Fibre-reinforced plastics.Methods of producing test plates.Part 1:General conditions
GB/T 2918-1998 Plastics--Standard atmospheres for conditioning and testing
ISO 2818 Plastics — Preparation of test specimens by machining*， 2018-12-13 Update
ISO 7822 Textile glass reinforced plastics; determination of void content; loss on ignition, mechanical disintegration and statistical counting methods

2013 GB/T 27797.4-2013 Fibre-reinforced plastics.Methods of producing test plates.Part 4:Moulding of prepregs