EVA anti-cracking sole and preparation process thereof

• Main Authors: CHENG XIANZHAO, WANG AICHAO
• Format: Patent
• Language: Chinese; English
• Published: 11.09.2020
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHARACTERISTIC FEATURES OF FOOTWEAR; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; FOOTWEAR; GENERAL PROCESSES OF COMPOUNDING; HUMAN NECESSITIES; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PARTS OF FOOTWEAR; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING-UP

The invention relates to an EVA anti-cracking shoe sole. The EVA anti-cracking shoe sole is prepared from the following components in parts by weight: 75-80 parts of EVA, 5-7 parts of a flame retardant, 2-4 parts of a foaming agent, 0.5-0.7 part of a bridging agent, 6-8 parts of a polyester polyol elastomer, 0.5-1 part of a stabilizer, 7-10 parts of modified aramid fibers with the length of 10-15microns and 8-13 parts of modified low-density polyethylene. By adding the modified aramid fiber and the modified low-density polyethylene, the modified aramid fiber and the modified low-density polyethylene supplement each other and exert respective advantages, so that the mechanical properties of tensile strength and crack resistance of the shoe sole are effectively improved, and the service life of the shoe sole is prolonged. 本发明涉及一种EVA抗裂鞋底，包括以下重量份的组分：EVA75-80份、阻燃剂5-7份、发泡剂2-4份、架桥剂0.5-0.7份、聚酯多元醇弹性体6-8份、稳定剂0.5-1份、长度为10-15μm的改性芳纶纤维7-10份以及改性低密度聚乙烯8-13份。本发明通过加入改性芳纶纤维和改性低密度聚乙烯，改性芳纶纤维和改性低密度聚乙烯相辅相成，发挥各自的优点，有效提高鞋底的抗拉抗裂性能的机械