HempSil Board - a low carbon breathable insulating plasterboard

**材料研究有限公司**开发了一种新型的生物基绝缘材料，利用当地种植的大麻作为绝缘材料，与正在申请专利的粘合剂结合在一起。这种材料的商标为HempSil，已经获得许可，可在预制建筑解决方案中用作湿气缓冲绝缘材料，该解决方案包括透气性保温外壳、包层、内墙、内部饰面和MEP服务。天然建筑系统需要一种透气板来提供防火层，并支持内部饰面，目前唯一可用的材料是水泥基木棉材料，这种材料具有相对较高的隐含能量，而且很重，不易处理。该项目是一项可行性研究，旨在利用生产生物柴油产生的废物流，结合当地种植的大麻，制造一种替代进口木棉板的产品。大麻是一种一年生作物，它可以生物修复受污染的土壤，改善土壤结构和营养水平，并可以在后续作物中获得更高的产量。最重要的是，大麻是一个不断发展的产业，通过提供当地制造业和工业就业，使小社区得以发展。这两种材料的结合将产生低密度透气隔音和隔热板，对环境的影响非常小。一块25毫米厚、2米× 600毫米的板将重约6公斤，导热系数为60mW/mK。建议是开发这种材料，使用已知的技术，通过原型全尺寸板。这种新型板的好处包括：*供应链弹性，不依赖进口原材料或制成品*当地就业增长*工业废物流的增值*通过降低单位重量提高现场使用的便利性*改善建筑物的热性能

**Material Research Ltd** has developed a novel bio-based insulation material that utilises locally grown hemp as the insulating material, held together with a patent pending binder. This material, trade marked HempSil, has already been licensed for use as the moisture buffering insulation within a pre-fabricated construction solution comprising a breathable thermal envelope, cladding, internal walls, internal finishes and MEP services. The Natural Building System requires a breathable board to provide a fire resistant layer and to support the internal finishes and currently the only available materials are cement based woodwool materials which have relatively high embodied energy and are heavy and awkward to handle.This project is a feasibility study to create a replacement for imported woodwool boards which will make use of a waste stream from the production of biodiesel, combined with locally grown hemp.Hemp is an annual crop which bio-remediates contaminated soil, improves soil structure and nutrient levels and can lead to greater yields in follow-on crops. Most importantly hemp is a growing industry which empowers small communities by providing local manufacturing and industry employment.The combination of these two materials will result in a low density breathable acoustic and thermal insulation board with a very low environmental impact. A 25mm thick 2m x 600mm board will weigh around 6kg and would have a thermal conductivity of 60mW/mK.The proposal is to develop this material, using known technology, through to prototype full scale boards.Benefits from this novel board include:* Supply chain resilience with no reliance on imported raw materials or finished goods* Growth in local employment* Valorisation of an industrial waste-stream* Improved ease of use on site through lower unit weights* Improved thermal performance of buildings