Method for continuously and efficiently producing low-cost high-performance rubber-plastic blending microporous infiltration irrigation pipe by multi-stage extruder

• Main Authors: WANG JIE, LIU XIAOBO, ZHANG ZHUZHU, WU SHEMAO, TIAN SENLIN, REN DONGYUN, WANG FENGXIN, HU QIANG, WANG FANG
• Format: Patent
• Language: Chinese; English
• Published: 15.01.2019
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS; 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

The invention relates to a method for continuously and efficiently producing a low-cost high-performance rubber-plastic blending microporous infiltration irrigation pipe by a multi-stage extruder andbelongs to the recycling of waste rubber. By using an equidirectional two-screw extruder, one or two side feeders, an extrusion shaping extruder, a cooling water tank, a tractor and a winder, rubber powder activated by an activation section of the equidirectional two-screw extruder, plastic melted and plasticized by the side feeder(s) and a compatibilizing modifier are continuously mixed in a mixing section of the equidirectional two-screw extruder and then extruded, cooled and shaped, and are finally packaged by the tractor and the winder to obtain a product. The method solves the problems ofincomplete desulfurization of high-temperature rubber powder, incomplete melting of low-temperature plastic, poor mechanical properties and large odor existing in simultaneous processing of the rubber powder and the plastic,