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首页> 外文会议>International Conference on Blowing Agents and Foaming Processes; 20040510-20040511; Hamburg(DE) >RIGID PVC FOAM: FORMULATING FOR SUSTAINABILITY
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RIGID PVC FOAM: FORMULATING FOR SUSTAINABILITY

机译：硬质PVC泡沫：为可持续发展而设计

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摘要

Rigid PVC foam has a well-established market in Western Europe of about 300 ktonnes. The material is used in a diverse range of applications from windowsills and advertising boards to sewer pipes. Many of the applications for PVC foam profile and sheet are for wood-replacement products because of its ease of fabrication and the advantages of a maintenance-free product. Foam core pipe is taking a growing share of the non-pressure pipe market because of its cost effectiveness, higher stiffness for a given weight and facility for the incorporation of recycled material. In order to obtain a product with the minimum weight for the required stiffness, strength and impact performance, it is important to control the foam density, skin thickness, surface finish and cell size distribution. This is achieved through the combined choice of processing equipment, processing conditions and the formulation. Perhaps more so than for other thermoplastic structural foams, there is a complex formulation technology involved in the production of rigid PVC foam products. Formulations contain a mixture of processing aid, thermal stabilisers, lubricants, pigment and filler in addition to the blowing agents required for foaming. This paper will review how the different components of the formulation affect the resulting foam structure. It will also discuss how formulations are changing to address sustainability issues.
机译：硬质PVC泡沫塑料在西欧拥有大约300吨的成熟市场。该材料用于窗台，广告板到下水道的各种应用。 PVC泡沫型材和板材的许多应用都用于木材替代产品，因为它易于制造并且具有免维护产品的优点。泡沫芯管由于其成本效益，在给定重量下具有更高的刚度以及用于掺入再生材料的设施，在非压力管市场中所占的份额不断增长。为了获得具有所需刚度，强度和冲击性能所需的最小重量的产品，控制泡沫密度，表皮厚度，表面光洁度和泡孔尺寸分布非常重要。这是通过组合选择加工设备，加工条件和配方来实现的。也许比其他热塑性结构泡沫更是如此，硬质PVC泡沫产品的生产涉及复杂的配制技术。除了发泡所需的发泡剂外，配方还包含加工助剂，热稳定剂，润滑剂，颜料和填料的混合物。本文将回顾配方的不同成分如何影响最终的泡沫结构。它还将讨论如何改变配方以解决可持续性问题。

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