HG/T 4228-2011
Activepolyurethane chain extender HQEE
聚氨酯扩链剂HQEE
Catalogue
前言 → 1 范围 → 2 规范性引用文件 → 3 要求 → 4 试验方法 → 5 检验规则 → 6 标志、包装、运输和贮存 Foreword → 1 Scope → 2 Normative References → 3 Requirements → 4 Test Methods → 5 Inspection Rules → 6 Marking, Packaging, Transport and Storage
Scope
This standard specifies the requirements, test methods, inspection rules, marking, packaging, transport and storage of polyurethane chain extender HQEE [hydroquinone bis(β-hydroxyethyl) ether]. This standard applies to polyurethane chain extender HQEE produced by condensation of hydroquinone with ethylene oxide.
本标准规定了聚氨酯扩链剂HQEE[对苯二酚一双(β-羟乙基)醚]的要求、试验方法、检验规则、标志、包装、运输和贮存。本标准适用于由对苯二酚与环氧乙烷缩合制成的聚氨酯扩链剂HQEE。
Normative References
Keywords
Application Summary AI generated
Manufacturers of polyurethane chain extender HQEE use this standard to ensure product quality meets industry requirements. Downstream polyurethane material producers rely on this standard for purchasing and inspecting raw materials to guarantee consistent performance of final products. By unifying technical specifications and test methods, this standard promotes the standardized development of the polyurethane chain extender industry.
聚氨酯扩链剂HQEE的生产企业使用本标准来确保产品质量符合行业要求。下游的聚氨酯材料制造商依据本标准采购和检验原料，以保证最终产品的性能稳定。该标准通过统一技术指标和检测方法，促进了聚氨酯扩链剂行业的规范化发展。
AI Summary AI generated
This standard specifies the technical requirements, test methods, inspection rules, marking, packaging, transport and storage for polyurethane chain extender HQEE (hydroquinone bis(2-hydroxyethyl) ether). The product is produced by condensation of hydroquinone with ethylene oxide. Key technical indicators include appearance (white powder), initial melting point ≥98.0°C, moisture ≤0.10%, purity ≥98.0% (by GC), and hydroxyl value 555±5 mgKOH/g. Test methods involve gas chromatography for purity and Karl Fischer titration for moisture. The standard is used for quality control by manufacturers and acceptance by users.
本标准规定了聚氨酯扩链剂HQEE（对苯二酚一双(β-羟乙基)醚）的技术要求、试验方法、检验规则及标志包装运输贮存要求。产品由对苯二酚与环氧乙烷缩合制成，主要技术指标包括外观（白色粉末）、初熔点≥98.0℃、水分≤0.10%、纯度≥98.0%（GC法）、羟值555±5 mgKOH/g。试验方法涉及气相色谱法测纯度、卡尔·费休法测水分等。标准适用于生产企业的质量控制和用户验收。
Key Sentences extracted from text
本标准规定了聚氨酯扩链剂HQEE[对苯二酚一双(β-羟乙基)醚]的要求、试验方法、检验规则、标志、包装、运输和贮存。
本标准适用于由对苯二酚与环氧乙烷缩合制成的聚氨酯扩链剂HQEE。
聚氨酯扩链剂HQEE的技术要求和相应的试验方法应符合表1的规定。
按GB/T 6283-2008中直接电量滴定法的有关规定进行测定。
取两次平行测定结果的算术平均值作为测定结果，两次平行测定结果的差值不应大于0.3%。
This standard specifies the requirements, test methods, inspection rules, marking, packaging, transport and storage of polyurethane chain extender HQEE [hydroquinone bis(β-hydroxyethyl) ether].
This standard applies to polyurethane chain extender HQEE produced by condensation of hydroquinone with ethylene oxide.
The technical requirements and corresponding test methods for polyurethane chain extender HQEE shall comply with the provisions of Table 1.
The determination shall be carried out according to the relevant provisions of the direct coulometric titration method in GB/T 6283-2008.
The arithmetic mean of two parallel determination results shall be taken as the determination result, and the difference between the two parallel determination results shall not be greater than 0.3%.