乙烯醇的聚合物 (CAS No.26221-27-2)
- 物化性质
- 白色或淡黄色颗粒，半结晶性热塑性树脂。密度约1.19~1.21 g/cm³，熔点随乙烯含量不同而变化，通常为165~185°C。具有极佳的气体阻隔性，尤其对氧气、氮气和二氧化碳；透明度高，耐油、耐有机溶剂，但湿度对其阻隔性能影响较大。
- 技术参数
- 外观为白色或淡黄色颗粒
- 密度
- 1.19~1.21 g/cm³（23°C）
- 熔点
- 165~185°C（依乙烯含量而定） 氧气透过率极低，典型值≤5 cm³·mm/(m²·day·atm)
English description（英文原文，共 1171 字符）
Product Name:Poly(vinyl alcohol-co-ethylene)
English Name:Poly(vinyl alcohol-co-ethylene)
CAS No.:26221-27-2
Aliases:Ethylene-vinyl alcohol copolymer, EVOH, Vinyl alcohol polymer
Molecular Formula:C8H14O3
Physical Properties:White or light yellow granules, semi-crystalline thermoplastic resin. Density approx. 1.19–1.21 g/cm³, melting point varies with ethylene content, typically 165–185°C. Excellent gas barrier properties, especially against oxygen, nitrogen, and carbon dioxide; high transparency, resistant to oils and organic solvents, though barrier performance is affected by humidity.
Uses:Mainly used in food and pharmaceutical packaging materials, such as barrier layers in multi-layer coextruded films, sheets, bottles, and containers, effectively extending product shelf life; also used in industrial products requiring high gas barrier, such as automobile fuel tanks and pipelines.
Technical Specifications:
Appearance: white or light yellow granules
Density: 1.19–1.21 g/cm³ (23°C)
Melting point: 165–185°C (depending on ethylene content)
Extremely low oxygen transmission rate, typical value ≤5 cm³·mm/(m²·day·atm)
Tensile strength: 60–80 MPa
English Name:Poly(vinyl alcohol-co-ethylene)
CAS No.:26221-27-2
Aliases:Ethylene-vinyl alcohol copolymer, EVOH, Vinyl alcohol polymer
Molecular Formula:C8H14O3
Physical Properties:White or light yellow granules, semi-crystalline thermoplastic resin. Density approx. 1.19–1.21 g/cm³, melting point varies with ethylene content, typically 165–185°C. Excellent gas barrier properties, especially against oxygen, nitrogen, and carbon dioxide; high transparency, resistant to oils and organic solvents, though barrier performance is affected by humidity.
Uses:Mainly used in food and pharmaceutical packaging materials, such as barrier layers in multi-layer coextruded films, sheets, bottles, and containers, effectively extending product shelf life; also used in industrial products requiring high gas barrier, such as automobile fuel tanks and pipelines.
Technical Specifications:
Appearance: white or light yellow granules
Density: 1.19–1.21 g/cm³ (23°C)
Melting point: 165–185°C (depending on ethylene content)
Extremely low oxygen transmission rate, typical value ≤5 cm³·mm/(m²·day·atm)
Tensile strength: 60–80 MPa
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常见问题
- 乙烯醇的聚合物的 CAS 号是多少？
- 乙烯醇的聚合物的 CAS 号是 26221-27-2。
- 乙烯醇的聚合物的分子式和分子量是什么？
- 乙烯醇的聚合物的分子式为 C8H14O3。
- 乙烯醇的聚合物的英文名称是什么？
- 乙烯醇的聚合物的英文名称为 Poly(vinyl alcohol-co-ethylene)。
- 乙烯醇的聚合物还有哪些别名？
- 乙烯醇的聚合物又称 乙烯/乙烯醇共聚物、EVOH、乙烯醇聚合物。
- 乙烯醇的聚合物有哪些供应商和生产厂家？
- 掌上化工当前收录 1 条乙烯醇的聚合物供应报价，来自 1 家供应商，可按地区、纯度、级别筛选对比。
- 乙烯醇的聚合物的供应商主要分布在哪些地区？
- 乙烯醇的聚合物的供应商主要分布在 上海市（1 条） 等地。
- 乙烯醇的聚合物有哪些级别可选？
- 平台上乙烯醇的聚合物的供应级别包括 工业级。
- 乙烯醇的聚合物的报价单位是什么？
- 乙烯醇的聚合物的报价单位主要有 千克。
- 哪里可以查到乙烯醇的聚合物的价格？
- 掌上化工乙烯醇的聚合物产品页汇总了各供应商的最新报价与规格，地址：/chemicals/26221-27-2/。部分供应商价格为电议，可通过页面上的询价功能直接获取。
以上信息由平台根据收录的产品数据自动生成，数据更新时间 。 价格与库存由供应商自行发布，实际交易请以询价结果为准。
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