1、国家标准
国家市场监督管理总局、中国国家标准化管理委员会
2、GB/T 37197
本标准规定了乙烯-乙酸乙烯酯 (EVAC)树脂的分类与命名、要求、试验方法、检验规则、标志和随行文件、包装、运输和贮存。 本标准适用于以乙烯、乙酸乙烯酯为单体,在高压下聚合所制得的乙烯-乙酸乙烯酯共聚物。 共聚物中乙酸乙烯酯含量（质量分数)为 3%~40% 乙烯基酯应用最多的场合是耐腐蚀场合，但是由于乙烯基树脂中具有较多的仲羟基，可以改善对玻璃纤维的湿润性与粘结性，提高了层合制品的力学强度；另外在分子两端交联，因此分子链在应力作用下可以伸长，以吸收外力或热冲击，表现出耐微裂或开裂。 因此，乙烯基树脂在一些要求高力学性能、耐冲击场合中得到应用，但是常规...
3、乙烯
该标准于2019年11月1日正式实施，由中国石油和化学工业联合会归口管理，属于合成树脂基础标准领域，适用于热塑性塑料的技术规范。 标准内容涵盖乙烯-乙酸乙烯酯树脂的技术要求、试验方法及检验规则等基础通用方法。
4、Chinese Standard: GB/T 37197
This standard is the original Chinese electronic standard. After you successfully purchase, we will send the electronic version of this standard to your email address.
GB T 37197
本标准适用于以乙烯、乙酸乙烯酯为单体，在高压下聚合所制得的乙烯-乙酸乙烯酯共聚物 。 共聚 物中乙酸乙烯酯含量 (质量分数)为3%〜40%。 注 ：乙烯-乙酸乙烯酯树脂的缩写EVAC也经常使用EVA。 2规范性引用文件 下列文件对于本文件的应用是必不可少的 。 凡是注日期的引用文件，仅注日期的版本适用于本文 件 。 凡是不注日期的引用文件，其最新版本 (包括所有的修改单)适用于本文件。
GB/T 37197
This standard specifies the classification and naming of ethylene-vinyl acetate (EVAC) resins, requirements, test methods, inspection rules, signs and Document, packaging, transportation and storage.
GB/T 37197
This standard specifies the classification, designation, requirements, test methods, inspection rules and requirements for marking, Encasement, transportation and storage of ethylene-vinyl acetate (EVAC) Resin.
乙烯—乙酸乙烯酯共聚物
Sinopec EVA is a thermoplastic copolymer manufactured through the free radical polymerization of ethylene and vinyl acetate in the presence of initiating agents using the high-pressure bulk polymerization process.
GB/T 37197
乙烯-乙酸乙烯酯（EVAC）树脂,GB/T 37197-2018下载，Ethylene-vinyl acetate resin，GB/T 37197-2018全文，GB/T 37197-2018阅读
GB/T 37197
GB/T 37197-2018 English Version, GB/T 37197-2018 Ethylene-vinyl acetate resin (English Version) - Code of China
In numerous fields of modern industry, the selection and application of materials play a critical role in determining product quality, production efficiency, and environmental protection. Ethylene-vinyl acetate (EVA) resin, as defined by the Chinese National Standard (GB), is a high-performance polymer material widely used across industries due to its unique chemical structure and superior physical properties. This article explores the characteristics of EVA resin and its significance in practical applications.
1. Basic Characteristics of Ethylene-Vinyl Acetate Resin Ethylene-vinyl acetate (EVA) resin is a thermoplastic polymer synthesized through the copolymerization of ethylene and vinyl acetate. Its key properties include:
- Excellent Mechanical Performance: EVA resin exhibits high tensile strength and compressive strength, making it ideal for manufacturing structural components.
- Superior Chemical Resistance: Due to its molecular structure, which combines polar and nonpolar groups, EVA resin demonstrates strong resistance to chemicals, including acids, alkalis, and salts.
- Good Processability: The resin can be easily processed into various shapes via extrusion, injection molding, blow molding, and other techniques.
- Environmental Benefits: EVA resin generates minimal wastewater and emissions during production. Additionally, it is biodegradable after disposal, reducing environmental impact.
2. Applications of Ethylene-Vinyl Acetate Resin Owing to its advantageous properties, EVA resin is extensively utilized in the following fields:
- Packaging Materials: Its mechanical stability and chemical resistance make it suitable for food containers, pharmaceutical packaging, and other packaging applications.
- Automotive Industry: EVA resin is popular in automotive parts such as bumpers and interior trims due to its lightweight and high-strength characteristics.
- Construction Materials: The resin is used in window frames, door frames, and roof tiles due to its durability and water resistance.
- Electronics and Electricals: EVA resin is employed in device casings and cable insulation layers because of its electrical insulation properties.
- Medical Devices: It is the preferred material for manufacturing medical instruments and surgical tools, as it withstands high temperatures and sterilization processes.
3. Environmental Impact Assessment of Ethylene-Vinyl Acetate Resin While EVA resin offers numerous benefits, its production and disposal may still pose environmental risks. For instance, wastewater and emissions during manufacturing, as well as complex recycling processes, require attention. environmental considerations should guide material selection, alongside the adoption of eco-friendly measures.
EVA resin stands out as a high-performance polymer material with exceptional mechanical properties, chemical stability, processability, and environmental advantages. its environmental impact during use must be carefully managed. With advancements in technology and growing environmental awareness, the application scope of EVA resin is expected to expand further, unlocking greater potential in material innovation and sustainability.
