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首页> 外文会议>12th international inorganic-bonded fiber composites conference >HYDROPHOBIC PROTECTION OF FIBRE REINFORCED CEMENT BOARDS WITH SILICON-BASED MATERIALS
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HYDROPHOBIC PROTECTION OF FIBRE REINFORCED CEMENT BOARDS WITH SILICON-BASED MATERIALS

机译：硅基材料对纤维增强水泥板的疏水保护

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As manufacturers of FRC board move from using Asbestos to Cellulose as the reinforcement fibre in theirrnproducts, a technical challenge has emerged that requires some innovative solutions. The KEYrnCHALLENGE is to maintain the types of performance expectations that the manufacturer (and the customer)rnhad perceived as ?given? for the asbestos based fibrous cement technology. Life times can be difficult tornpredict with confidence but there is a widely accepted opinion that to achieve the same life in non asbestosrnboards, extensive modifications and additives need to be used. This is particularly true for reduction of waterrnabsorption.rnWhat is required in the market place are systems that ensure the longest term possible performance under allrntypes of weather conditions. One option to achieve this increased water exclusion performance might be byrnthe use of silicone technology.rnThe paper will review the different strategies which can be used to reduced the water absorption of Fibrernboards thanks to the use of silicon-based additives and illustrate them. Data showing the efficiency ofrnsilane/silicone based water repellent as post treatment or admixture are given. Impact of silane/siliconernadmixture is shown to be limited on cement hydration.
机译：随着FRC板制造商从在产品中使用石棉转变为纤维素作为增强纤维，出现了一项技术挑战，需要一些创新的解决方案。关键挑战是保持制造商（和客户）认为“给定”的性能期望类型。用于石棉的纤维水泥技术。很难自信地预测使用寿命，但是有一种广泛接受的观点认为，要在非石棉板中获得相同的使用寿命，需要使用大量的改良剂和添加剂。对于减少吸水率尤其如此。市场需要的系统是确保在所有天气条件下都能长期保持最佳性能的系统。实现这种更高的水排斥性能的一种选择可能是使用有机硅技术。本文将回顾由于使用了硅基添加剂而可用于降低纤维板吸水率的不同策略，并对其进行了说明。给出了显示基于硅烷/硅氧烷的疏水剂作为后处理或掺混料的效率的数据。硅烷/硅金属混合物的影响显示出对水泥水化的限制。

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