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北京燕山石油化工有限公司(以下简称燕化公司)成功开发了洗衣机用聚丙烯(PP)系列专用料。该技术成果已通过了中国石油化工集团公司技术开发中心组织的鉴定。 目前,我国已成为世界上洗衣机第一生产大国,年生产能力已达1500万台。洗衣机的多个部件(如洗涤桶、脱水桶、底座、面板、操作盘、波轮等)均以共聚级PP为原料注塑成型。每台洗衣机约需PP树脂6～8 kg,全国每年需PP专用树脂约100 kt。由于洗衣机各塑料制件尺寸大小、薄厚不等,形状不一,且各部件在洗衣机中
Beijing Yanshan Petrochemical Co., Ltd. (hereinafter referred to as Yanhua) successfully developed polypropylene (PP) series special materials for washing machines. The technical achievements have passed the appraisal organized by the China National Petroleum and Chemical Corporation’s Technology Development Center. At present, China has become the world’s largest producer of washing machines, with an annual production capacity of 15 million units. Many parts of the washing machine (such as washing buckets, dewatering buckets, bases, panels, operating panels, pulsator, etc.) are all injection moulded with copolymer grade PP as raw material. About 6 to 8 kg of PP resin is required for each washing machine, and about 100 kt of PP-specific resin is needed every year in the country. Due to the size and thickness of the various plastic parts of the washing machine, the shapes are different, and the components are in the washing machine.