GB/T 33094-2016Plastics - Antistatic impact-resistant polystyrene compound (English PDF)

Foreword

This standard is drafted in accordance with the rules given in GB/T 1.1-2009. This standard is proposed by the China Petroleum and Chemical Industry Association. This standard is under the jurisdiction of the National Plastics Standardization Technical Committee (SAC/TC15/SC10). The drafting of this standard. blonde Technology Co., Ltd., in the blue morning Chemical Design and Research Institute Co., Ltd., Guangdong blonde technology limited Company, Jiangsu Jinfa Science and Technology New Material Co., Ltd., Dongguan City Tak Cheng Plastic Technology Co., Ltd., Huizhou City Water New Material Co., Ltd., Sichuan In the equipment Technology Co., Ltd., Tianjin blonde New Materials Co., Ltd., in the blue dawn of Chengdu Detection Technology Co., The main drafters of this standard. Ning Fanglin, Cai Tongmin, Ye Nanbiao, Song Xiaohui, Shi Xin, Ning Kaijun, Xia Jianmeng, Chen Minjian, Li Jianjun, TAO Si-ping, WANG Yu-ting, HE Zheng, ZHANG Zun-chang, LIU Ze-an, ZHENG Wen, ZHAO Ping Plastic impact resistant polystyrene anti - static material

1 Scope

China's national standard for antistatic high-impact polystyrene compounds. It specifies the classification and naming, the technical requirements, the test methods, the inspection rules, and the marking, packaging, transport and storage, and it applies to compounds based on polystyrene with antistatic agents, toughening agents and other additives melt-blended into them. High-impact polystyrene is one of the cheapest useful engineering thermoplastics: polystyrene on its own is glass-clear, rigid and brittle, and dispersing rubber particles through it during polymerisation converts it into a tough material that can be injection moulded or thermoformed into housings, trays and panels. What it cannot do, because no hydrocarbon polymer can, is conduct. A moulded polystyrene part accumulates static charge from handling and from separation, and the charge does two things that matter: it attracts dust, which is a problem for anything that must stay clean, and it discharges, which is a problem for anything containing a semiconductor. The trays and carriers that move electronic components through a factory are the largest application, and a single electrostatic discharge event can destroy a device that will not fail visibly until it is in a customer's product. So the antistatic grade exists to make the material dissipate charge rather than hold it, and this standard covers what that grade must achieve. The property that defines it is surface and volume resistivity, measured to GB/T 1410, and the standard requires the mechanical properties of the base material to be retained alongside it. Issued on 13 October 2016 and in force since 1 May 2017.

This standard specifies the classification and naming of anti-shock polystyrene anti-static materials, technical requirements, test methods, inspection rules, signs, packages Equipment, transportation and storage. This standard applies to polystyrene as the matrix, adding antistatic agents, toughening agents and other additives, etc., by melt blending modified to form Of anti-shock polystyrene anti-static special materials.

2 Normative reference documents

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

GB/T 1033.1-2008 Plastics - Determination of non-foam density - Part 1. Impregnation, liquid pycnometer and titration

GB/T 1040.2-2006 Determination of tensile properties of plastics - Part 2. Test conditions for molded and extruded plastics

GB/T 1043.1 Determination of impact properties of plastic simply supported beams - Part 1. Non-instrumented impact tests Test method for volume resistivity and surface resistivity of

GB/T 1410 solid insulating materials

GB/T 1634.2-2004 Determination of plastic load deformation temperature - Part 2. Plastics, hard rubber and long fiber reinforced composites material Plastics symbols and acronyms - Part 1. Base polymers and their characteristic properties

GB/T 1844.1-2008 Plastics - Sampling method GB/T

GB/T 2918 Standard conditions for the regulation and testing of plastic specimens

GB/T 3682 Thermoplastics Melt Mass Flow Rate and Melt Volume Flow Rate Determination Representation and Judgment of Numerical Correction Rule and Limit Value of GB/T 8170

GB/T 9341 Determination of bending properties of plastics

GB/T 17037.1-1997 Preparation of injection molded specimens of thermoplastics materials - Part 1. General principles and multipurpose samples and length The preparation of the sample

GB/T 26125 Electronic and electrical products Determination of six restricted substances (lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls and polybrominated diphenyl ethers) Environmental requirements and marking of modified plastics

GB/T 31331-2014 Standard Test Method for Appearance of Thermoplastic Particles BSEN13900-5..2005 Dispersion method for pigment and filler dispersion and dispersion in plastics Part 5. (Pigmentsandextenders-Methodsofdispersionandassessmentofdispersibilityinplastics- Part 5. Determinationbyfilterpressurevaluetest)

3 Terms and definitions

The following terms and definitions apply to this document.

3.1 Antistatic material Can prevent the production and life of static damage to the material.