GB/T 37198-2018 in English
VALIDImpact-resistant polystyrene(PS-I) resin
- Issued on:2018-12-28
- Implemented on:2019-11-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$156.00
《GB/T 37198-2018抗冲击聚苯乙烯（PS-I）树脂》由TC15（全国塑料标准化技术委员会）归口，TC15SC1（全国塑料标准化技术委员会石化塑料树脂产品分会）执行，主管部门为中国石油和化学工业联合会。
Introduction
In-depth interpretation of the national standard for high-impact polystyrene (PS-I) resin
1. Background and significance of standard formulation
High-impact polystyrene (PS-I) resin is an important engineering plastic, widely used in the fields of automobiles, electronics, construction, etc. With the rapid development of my country's plastics industry, the formulation of unified technical standards is of great significance for regulating product quality and improving the technical level of the industry.
2. Comparison of standard frameworks
| Project dimensions | GB/T 37198—2018 | Differences in international standards |
|---|---|---|
| Classification and naming | Adopts the naming system of GB/T 18964.1-2008 | Basically consistent with ISO standards |
| Technical requirements | Including core indicators such as impact strength and flexural modulus | Some performance indicators are higher than the international average |
3. Interpretation of the main contents of the standard
Scope of application: This standard applies to high-impact polystyrene resins consisting of a two-phase polymer system with polystyrene and (or) copolymers of alkyl-substituted styrene and styrene as the continuous phase and butadiene rubber as the dispersed phase.
4. Key Performance Parameters Table
| Indicator Name | Unit | Technical Requirements |
|---|---|---|
| Melt Mass Flow Rate (MFR) | g/10min | ≥4.5±0.9 |
| Vicat Softening Temperature (Tv) | ℃ | ≥86 |
5. Implementation Suggestions
Manufacturers: should strictly control the quality of raw materials and production processes in accordance with standard requirements, and it is recommended to establish a complete quality traceability system.
Testing agencies: It is recommended to use Method A or Method B specified in GB/T 16867-1997 to determine the residual styrene monomer content.
User units: When purchasing and using impact-resistant polystyrene resins, the product's Vicat softening temperature and notched impact strength indicators should be focused on.
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