1.1 本规程涵盖了各种放电处理，用于增强聚合物基材的粘接能力。本规程不包括有关试样制备或测试条件的额外信息，因为它们包含在各种ASTM测试方法或特定材料规范中。 1.2 用于聚合物表面改性的放电现象类型属于非平衡或非热放电的一般类别，其中电子温度（平均能量）大大超过气体温度。 1.3 本实践中包括的技术包括: 技术 部分 减压气体等离子体 8. 大气压放电 9 交流介质阻挡放电 9.1 高频设备 9.1.1 抑制火花装置 9.1.2 电弧等离子体装置 9.2 辉光放电装置 9.3 注1: “电晕处理”一词有时在文献中用于第节中描述的不同放电处理技术 9 . 本规程定义了第节中介绍的大气压力下的每种放电处理技术 9 并将其与电晕放电进行了必要的区分。见测试方法 D1868 用于“电晕放电” 1.4 以国际单位制表示的数值应视为标准。 1.5 本标准并非旨在解决与其使用相关的所有安全问题（如有）。 本标准的用户有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 具体危险说明见第节 6. . 1.6 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 5.1 由于许多聚合物基材表面的润湿性和化学惰性较低，因此其粘接存在问题。 粘合剂的形成始于通过润湿建立界面分子接触。基质表面的润湿性取决于其表面能。放电表面活化改善了聚合物的润湿性和随后的粘合剂粘接。放电的表面活化导致聚合物表面增加了极性官能团。表面极性官能团的浓度越高，表面与不同极性界面的反应越活跃。 5.2 为了实现适当的粘接，聚烯烃基材的极性成分应从接近0提高到15至20 mJ/m 2. . 5.3 预处理的表面准备好在处理后立即涂抹粘合剂。

1.1 This practice covers various electrical discharge treatments to be used to enhance the ability of polymeric substrates to be adhesively bonded. This practice does not include additional information on the preparation of test specimens or testing conditions as they are covered in the various ASTM test methods or specifications for specific materials. 1.2 The types of discharge phenomena that are used for surface modification of polymers fit into the general category of nonequilibrium or non-thermal discharges in which electron temperature (mean energy) greatly exceeds the gas temperature. 1.3 The technologies included in this practice are: Technology Section Gas plasma at reduced pressure 8 Electrical discharges at atmospheric pressure 9 AC dielectric barrier discharge 9.1 High Frequency Apparatus 9.1.1 Suppressed Spark Apparatus 9.1.2 Arc Plasma Apparatus 9.2 Glow Discharge Apparatus 9.3 Note 1: The term “corona treatment” has been applied sometimes in the literature to the different electrical discharge treatment technologies described in Section 9 . This practice defines each electrical discharge treatment technology at atmospheric pressure presented in Section 9 and draws the necessary distinctions between them and corona discharge. See Test Method D1868 for “corona discharge.” 1.4 The values stated in SI units are to be regarded as the standard. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific hazard statements appear in Section 6 . 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 Bonding of many polymeric substrates presents a problem due to the low wettability of their surfaces and their chemical inertness. Adhesive bond formation begins with the establishment of interfacial molecular contact by wetting. Wettability of a substrate surface depends on its surface energy. The surface activation with electrical discharges improves wettability of polymers and subsequent adhesive bonding. The surface activation with electrical discharges results in addition of polar functional groups on the polymer surface. The higher the concentration of polar functional groups on the surface the more actively the surface reacts with the different polar interfaces. 5.2 To achieve a proper adhesive bond the polyolefin substrate's polar component should be raised from near zero to 15 to 20 mJ/m 2 . 5.3 The pre-treated surfaces are ready for application of the adhesive immediately after the treatment.