GB/T 37198-2018Impact-resistant polystyrene (PS-I) resin (English PDF)

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

1 Scope

This standard specifies the classification, requirements, test methods, inspection rules, signs and accompanying texts of impact-resistant polystyrene (PS-I) resins. Parts, packaging, transportation and storage.

This standard applies to polystyrene and/or alkyl substituted styrene and styrene copolymer as the continuous phase, butadiene rubber phase A two-phase polymer system of a dispersed phase consisting of an impact polystyrene resin. This standard does not apply to expandable polystyrene resins.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only the dated version applies to this document. For undated references, the latest edition (including all amendments) applies to this document.

Plastics -- Determination of tensile properties of plastics - Part 2. Test conditions for moulding and extruded plastics

GB/T 1043.1-2008 Determination of impact properties of simply supported beams - Part 1. Non-instrumental impact test

GB/T 1633-2000 Determination of Vicat softening temperature (VST) of thermoplastics

GB/T 2547-2008 Plastic sampling method

GB/T 2918-2018 Standard environment for condition adjustment and test of plastic samples

GB/T 3682.1-2018 Plastic thermoplastic melt mass flow rate (MFR) and melt volume flow rate (MVR) Determination of Part 1. Standard methods

GB 4806.6 National Food Safety Standard Food Contact Plastic Resin

GB/T 8170-2008 Numerical rounding rules and the representation and determination of limit values

GB/T 9341-2008 Determination of bending properties of plastics

GB/T 16867-1997 Determination of residual styrene monomer in polystyrene and acrylonitrile-butadiene-styrene resins Spectral method

Plastics -- Injection moulding of thermoplastics -- Part 1. General principles and Preparation of strip samples

Plastics and impact-resistant polystyrene (PS-I) moulding and extruded materials - Part 1. naming systems and Class basis

Plastics and impact-resistant polystyrene (PS-I) moulding and extruded materials - Part 2. Sample preparation and properties Can measure

SH/T 1541-2006 Test method for appearance of thermoplastic particles

3 Classification and naming

Classification and naming of impact-resistant polystyrene resins are carried out in accordance with GB/T 18964.1-2008.

Example: An impact polystyrene (PS-I) resin, recommended for injection molding (M), light or climate stable (L), natural (N), Vicat softening temperature of 84 ° C (083), the melt mass flow rate is 14g/10min (12), the simply supported beam notched impact strength is 8kJ/m2 (07), and the flexural modulus is 2200MPa (23). Name it as follows. […]