泡沫—夹克已在采暖、保温防腐管道工程中得到应用,具有保温效果好、应用方便等优点。但在推广应用中还存在泡沫与夹克的粘接力小,泡沫夹克管在储放、应用中经常出现泡沫与夹克轴向相对位移(通常所说的脱裤子现象),影响泡沫夹克管的质量与保温效果。针对这一技术难题,中国石油天然气 Foam - Jacket has been applied in heating, thermal insulation and anti-corrosion pipeline engineering, which has the advantages of good thermal insulation effect and convenient application. But in the popularization and application of foam and jacket there is still little adhesion, foam jacket tube in the storage, the application of foam and jacket often appear in the axial relative displacement (commonly referred to as the pants off phenomenon), affecting the quality of the foam jacket tube With thermal insulation effect. In response to this technical problem, China’s oil and gas