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，该材料利用当地种植的大麻作为绝缘材料，并与一种正在申请专利的粘结剂结合在一起。这种商标为HempSil的材料已获准用作预制建筑解决方案中的湿气缓冲绝缘材料，该解决方案包括透气热封套、覆层、内墙、内部饰面和MEP服务。自然建筑系统需要一块透气板来提供阻燃层并支撑内部饰面，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包含能量，而且笨重且难以操作。该项目是一项可行性研究，旨在创造一种替代进口木棉板的方案，该板将利用生产生物柴油的废流，结合当地种植的大麻。大麻是一种一年生作物，可以生物修复受污染的土壤，改善土壤结构和养分水平，并能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行业，它通过提供当地制造业和工业就业来增强小型社区的能力。这两种材料的结合将产生一种低密度、透气的隔音和隔热板，对环境的影响非常小。一块25 mm厚的2m x 600 mm板将重约6千克，导热系数为60 mW/mK。计划利用已知的技术开发这种材料，直到形成全尺寸的板。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*工业废气的有价化*通过降低单位重量提高现场易用性*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