Extrusion Asia Edition 1-2024

27 Extrusion Asia Edition 1/2024 ZSK挤出机的最大能源效率 ABS共混物由合成橡胶聚合物HRG和SAN(苯乙烯-丙烯 腈)组成。科倍隆为制造ABS混合料开发了一种特别节能的工 艺解决方案。ABS乳剂在生产后从反应器中湿滑而出。在科倍 隆的解决方案中，仍然是潮湿的HRG 通过下游科倍隆 ZS-B侧 给料机引入到下游ZSK挤出机的工艺段之前，先通过螺旋压 机。这样就免除了ABS的能量密集型预热干燥。采用称重型科 倍隆 K-Tron喂料机，将SAN（丙烯腈）和添加剂同样地引入 ZSK挤出机。SAN，添加剂和HRG（苯乙烯）在ZSK挤出机 的加工段集中均匀地混合，同时非常温和地进行加工，因此产 品不发黄，聚合物也不会分解。与传统制造工艺相比，科倍隆 的解决方案的能耗显着降低。此外，剩余单体的部分减少到绝 对最小值。 科倍隆工艺技术与研发部总经理Frank Lechner坚信科倍 隆这一进步的重要性:“我们很自豪地看到浙江智英石化科技有 限公司的这两套大型装置成功地接管了ABS混合材料的生产。 这些机器已经在每天证明着它们的运行是多么节能。与此同 时，他们提供了持续的、极高的产品质量，强调了我们的创新 工艺开发如何精确地满足客户的要求。我们的最新开发成果， 为进一步减少ABS生产的能源消耗提供了一种方法，已经引起 了极大的兴趣。我们制造的ABS混合物料可以直接接触食品的 解决方案也是如此。” A BS is a thermoplastic engineering plastic which combines numerous positive mechanical properties and chemical sta- bility, which make it ideal for multiple uses in the electric and automotive industries. Technology licensing and engineering company Zhejiang Zone- pic Petrochemical Technology Co., Ltd. located in Hangzhou City, Zhejiang Province, People’s Republic of China, is a licensor for the emulsion grafting-bulk polymerization ABS blend method which allows for the production of ABS blends in general grade, food grade, flame retardant grade and electroplating grade. For this solution the company has permitted to design several large installations with multiple ZSK 133 Mc18 twin screw extruders. Two systems have recently started production: one plant is at Lihuayi Lijin Refining & Chemical Co. Ltd. with an output of 200 KTA, and the other at Zhejiang Petroleum & Chemical Co, Ltd. with an output of 400 KTA. ZSK Extruders for maximum energy-efficiency ABS blends consist of synthetic rubber polymers HRG and SAN (styrene-acrylonitrile). Coperion has developed a particularly energy-efficient process solution for manufacturing ABS blends. The ABS emulsion emerges wet from a reactor following its ma- nufacture. In Coperion’s solution, it passes through a screw press before the HRG – still damp – is introduced downstream via a Coperion ZS-B side feeder into the process section of a ZSK ex- truder. The energy-intensive thermal pre-drying of the ABS is thus eliminated. Using gravimetric Coperion K-Tron feeders, SAN and additives are likewise introduced into the ZSK extruder. SAN, additives and HRG are intensively and homogeneously mixed in the ZSK pro- cess section, all the while handled very gently, so that the prod- uct does not yellow, nor does the polymer break down. In comparison to conventional manufacturing processes, Cope- rion’s solution operates with markedly lower energy consump- tion. Moreover, the portion of residual monomers is reduced to an absolute minimum. Frank Lechner, General Manager of Process Technology and Re- search & Development at Coperion, is convinced of the impor- tance of Coperion’s development: “We’re proud to see how both of these large installations from Zhejiang Zonepic Petro- chemical Technology Co., Ltd. have successfully taken over pro- duction for ABS blends. These machines are already proving on a daily basis how energy-efficient their operation is. At the same time, they deliver a constant, extremely high product quality that underscores how our innovative process development precisely meets our customers’ requirements. Even our newest develop- ment, providing a way to further reduce ABS production’s energy consumption, has already met with great interest – as has our solution for manufacturing ABS blends for direct contact with food products.” 科倍隆开发出了一套围绕ZSK Mc18双螺杆挤出机的工艺，用于制造ABS混合料，该工艺的能源效率明显高于传统工艺，同时提供恒 定的、非常高的产品质量(照片: 科倍隆，德国斯图加特) Coperion has developed a process, built around the ZSK Mc18 twin screw extruder, for manufacturing ABS blends that opera- tes markedly more energy-efficiently than conventional processes while delivering constant, very high product quality (Photo: Coperion, Stuttgart Germany) ➠ Coperion GmbH Theodorstr. 10, 70469 Stuttgart, Germany www.coperion.com