Double-layer heat-shrinkable sleeve for insulation protection of new energy automobile and preparation method thereof

• Main Author: LU ERBING
• Format: Patent
• Language: Chinese; English
• Published: 20.11.2020
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; BASIC ELECTRIC ELEMENTS; CURRENT COLLECTORS; ELECTRICITY; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; LINE CONNECTORS; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

A double-layer heat-shrinkable sleeve for insulation protection of a new energy automobile is composed of two layers of materials, the outer layer is a bright orange halogen-free flame-retardant polyester elastomer material, and the inner layer is a halogen-free high-flame-retardant polyolefin material. The double-layer heat-shrinkable sleeve has a heat shrinkable function. The double-layer heat-shrinkable sleeve has the advantages of good oil resistance, wear resistance, tear resistance, softness and flexing resistance of a polyester material and also has the advantages of good insulating property and environment friendliness of a polyolefin material. The invention provides a technical scheme for preparing the double-layer heat-shrinkable sleeve. The prepared bright orange double-layer heat-shrinkable sleeve can be thermally shrunk at the joints of new energy automobile power wires and cables, flexible bus bars and the like to provide an insulation protection effect. 一种新能源汽车绝缘防护用双层热缩管，由两层材料组成，外层是具有鲜艳橙色的无卤阻燃聚