石墨烯 – 讓可持續環保建築設計更出「色 」

石墨烯 – 讓可持續環保建築設計更出「色 」

30年前,大家可能對光纖、納米等名詞感到陌生,誰又預知它們能為現代生活帶來重大改變 ?現在又為大家介紹一個 重要 元素 — 石墨烯(Graphene)。

可能一般大眾對這個科學名詞一知半解,但石墨烯是目前世上最薄、又最硬的物料,厚度只有0.335奈米。到底有多薄? 試想像, 大概20萬片石墨烯薄膜同時 疊在一起,才有一根頭髮的厚度,要顯微鏡才看得見!科學家預言 ,這個外號為「黑金」的材料將成為「21世紀新材料之王」。

顯微鏡才看得到的「黑金」

其實石墨烯過去被科學家認為是一種假設性結構,無法單獨穩定存在。直到2004年,多得兩位英國曼徹斯特大學的物理學家海姆(Sir Andre Konstantin Geim)和諾沃肖洛夫(Sir Konstantin Sergeevich “Kostya” Novoselov)在實驗中以「微機械剝離法」分離製備出石墨烯,才證實了它可以單獨存在。兩位科學家亦以此開創性實驗方法,製出石墨烯這種二維材料,最後榮獲頒2010年諾貝爾物理學獎。

由於石墨烯強度比鋼高100倍,加上這種物質的透光性、導熱性、韌性也非常好,故近年,它開始被創新科技公司研發並應用不同產品,以改善人類物質文化生活,如製造柔韌且堅固的充電電磁、汽車防劃油漆,更甚或是家用油漆等。 其中來自英國的Graphenstone 將石墨烯防腐蝕油漆推出市場 ,希望結合建築裝修需求,推廣可持續環保建築及設計 。石墨烯防腐蝕油漆三大優點包括:

最強塗層  防腐耐用

比起一般傳統建築油漆,加入石墨烯的油漆更易於營造光滑塗層,令牆身更堅硬、更耐用,又不易滲水,加上其天然防腐功能,特別適合歷史文物復修及潮濕與熱帶國家採用 。

有機天然  散熱防潮 

石墨烯油漆成份包括天然石灰,故能維持牆身的透氣度,能加強防潮及散熱功能,用於室內時能減少使用空調、用於室外時亦能減輕吸熱的影響,有助改善空氣環境。

環保節能   事半功倍

另外,由於物料比傳統油漆更輕巧,可省卻油漆及工人的使用量,變相提升效率,降低成本 ,令建築項目更具效益。

目前,全球各地以至亞洲不少建築如學校、醫院等均已使用石墨烯油漆於建郵設計之上。可以預期,未來將有更多關於「石墨烯」的產品將推陳出新,大家拭目以待。

資料來源:

Materia 

Graphenstone

KKnews

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100% Ecological Paint with the Wonder GRAPHENE

100% Ecological Paint with the Wonder GRAPHENE

Graphene is the strongest material ever tested and was later rediscovered and characterised in 2004 by Andre Geim and Konstantin Novoselov at the University of Manchester who won the Nobel Prize in Physics in 2010 “for groundbreaking experiments regarding the two-dimensional material graphene. Labs around the world began studies applying Graphene to biotechnology and a decade later, UK-based company Graphenstone has annouced the world’s first commercially available graphene paint in 2017. With a natural and organic mineral coating, it’s claimed to be the most eco-friendly paint specially suitable for sustainable modern home and architecture development.

Advantages of Graphene Paint

Organic  & Anti bacterial 

Graphene is made from natural lime, the porous nature of the coatings ensures that walls can still breathe, improving air quality, and preventing moisture collection and condensation. The high alkaline pH of lime as well as its ventilating properties prevents the growth of microorganisms, bacteria and fungi.

High Utility & Efficiency 

It reduces the weight of materials, while being 200 times stronger than steel. Also, using graphene can increase the coverage of the paint which reduces the no. of paint and labour

Energy saving 

Owning to its conductive nature, it improves the thermal regulation of buildings, saving energy by requiring less heating and air conditioning

Considering the above unique qualities, Graphene paint is ideal for rehabilitation or restoration of heritage and sustainable restoration of historic or vernacular buildings to ensure bio habitability, as well as breathability, antistatic behaviour. In 2015, Graphenstone won the “Innovation and sustainability” award at the Beyond Building Barcelona – Construmat Fair from Fira de Barcelona. Apart from European counters,  other projects in Asia e.g The Jinan Sixth People’s Hospital in Jinan, China, Children School in Korea are using Graphenstone premium products and hopefully will be widely supported in more countries with the big trend of sustainable design and construction.

Source of Information:

Materia 

Graphenstone

 

About Go.Asia

Go.Asia

Go.Asia is a charitable initiative that aims to improve society through collective and individual efforts. Go.Asia contains helpful information on possible ways to enrich your life and the lives of those around you through acts of kindness, compassion, generosity and goodwill.