smart facades to meet the ecological challenges of urbanisation …...

Smart Facades to meet the Ecological Challenges of UrbanisationPamela PhuaDirector, RD&I, South East & South Asia, Middle EastDirector, Exterior, Wallpaint Expertise Group, RD&I, GlobalAkzoNobel Decorative Paints

Why AkzoNobel exists?

AkzoNobel at a glance

3Business unit | Footer

• A leading global paints & coatings company & a major producer of specialty chemicals• Consistently ranked as one of the leaders in the area of sustainability• Passionate about innovation, with 4,000 scientists at over 160 laboratories• €363 million invested in research and development in 2016 • Committed to society through our brands and hands-on community projects

Strongly engaged in Sustainability

Smart Facades to meet the ecological challenges of urbanisation

Our commitment todoing more with less

Recognized as a leading company in Sustainability (#1 Dow Jones Sustainability Index)

Sustainability

Our commitment to doing more with less

We aim to be carbon neutral and use 100% renewable energy by 2050



Our sustainability strategy

20%of revenue by 2020 from productsthat are more sustainable forour customers than those of ourcompetitors

25-30%more efficient resource and energy use across the entire value chain by 2020 (measured by cradle-to-grave carbon footprint reduction)

>4 out of 5Employee engagement score, as measured by Gallup Q12

Sustainable business

Resourceefficiency

Capable, engaged people


More than 300 Human Cities projects last year

Our World is changing at a frenetic pace:it is more than ever necessary to reduce our environmental footprint


At AkzoNobel, we believe we can play a role and bring innovative solutions to meet the ecological challenges of urbanisation


Cleaning Air with Photocatalysis


Impacts of Air Pollution


1 World Health Organization (2016)2 http://breathelife2030.org/3 World Bank (2016)

PM10 and PM2.5 data are annual mean values from: http://www.who.int/phe/health_topics/outdoorair/databases/en/

92% world’s population breathe unhealthy air1

7 million die yearly due to pollution-related diseases2

Costs more than US$5 trillion global economy annually3

Lung cancer Stroke Heart disease Pulmonary disease

Worsening Air Quality


Unsafe air qualitySafehttp://maps.who.int/airpollution/

Cities in many emerging and developed countries are struggling to combat deteriorating urban air quality and mitigate increasingly complex health implications

Pollution Map: PM2.5


Cleaning Air with PhotocatalysisPhotocatalysis is well-established technology for degrading air pollutants

Photoactive titanium dioxide absorbs sunlight and reacts with oxygen and moisture to generate highly reactive free radicals

The radicals can contribute to abatement of noxious emissions from motor vehicles by decomposing harmful gases like NOx, SO2 and VOC

Organic constituents in paint may also be attacked by radicals, which was overcome by specially formulated inorganic film that can resist such attack

Photoactive TiO2

NO2

NO


Depolluting Paint Field TrialsField trials of our depolluting paint will be launched in three megacities with severe pollution issues in India and Indonesia

Trials will be implemented with an external partner specializing in air monitoring aimed to confirm and quantify efficacy of our paint in reducing ambient pollutants in urban environment

Stay-Clean with Superhydrophobicity


Smart Facades to meet the ecological challenges of urbanization

Urban Challenge to Keep Public Places CleanMany cities are facing great challenge to maintain cleanliness and hygiene of public places and keep walls away from abuses like urination and spitting

India has embarked on an aggressive national campaign “Swachh Bharat” to clean up its streets and infrastructure often stained by urine and paan

Credit: Manish Yadav

Normal wall Urine-repellent wall

Urban areas can be protected with superhydrophobic or extremely water-repellent paint that can bounce off and splash back urine, thereby deterring public urination


Stay-Clean with Superhydrophobicity Our superhydrophobic paint can make cities more livable and inspiring by keeping facades dry and clean with non-wetting or strongly water-beading surface that can repel water, rain, mud, urine, dirt and other stains

Reduction in cleaning cycle can save energy and detergent consumption and help urban communities reduce maintenance costs and environmental footprint

Fabrication of superhydrophobic surface is inspired by bio-mimicking Lotus leaf with low surface energy material together with multi-scale roughness


Saving energy

Driving the industry InnovationAn example of standards on Energy Efficiency


China government has established and enforced demanding standards for energy conservations for residential buildings

*Defines GB 50176 - 93

Type of standard Standards Zones*

Design Standard for Energy Efficiency

JGJ 26-2010 Severe Cold and Cold

JGJ 134-2010 Hot summer and cold winter

JGJ 75-2012 Hot summer and warm winter

Drive the need for additional functionality in coating systems:• Higher solar reflectance• Insulation

Type of standard Standards Region Relevant Coating Layers

Architectural Reflective Thermal Insulation Coatings

JG/T 235-2014 Whole China Reflective Top CoatDGJ32/TJ 165-2014 Jiang Shu Insulation Putty + Reflective Top

CoatDB34 T1505-2011 An HuiDGTJ08-2200-2016 Shang Hai Reflective Top Coat

Heat Management


Heat Island” effectAir in urban areas is much hotter than in surrounding suburbs.

Higher air-conditioning costsGreater energy consumption of energy


Heat Transfer Mechanisms and Control

Solar radiation300 – 2500 nm Conduction

ConvectionOUTSIDE INSIDENot

controlled

Higher solar reflectance paint

- reduce heat gain

Insulating basecoat

- reduce heat flow


Heat Management – Higher solar reflectance paint

KeepCool™ technology utilizes special pigments that reflect more infrared light:• Keep exterior walls up to 5°C cooler• Power savings of up to 15% per year for

a bungalow due to lower utilization of air-conditioning

More solar energy reflected with KeepCoolTM technology

Tota

l Sol

ar re

flect

ance

(%)

Upto

Stan

dard


A revolutionary insulating coating with low thermal conductivity l = 0.05 W/mK(only twice of Air thermal conductivity)

• Creates warmer, more comfortable spaces• Combats the formation of condensation• Reduces heat loss & room warm-up times

Cut heat loss through solid walls by up to 20%Helps reduce heating & cooling costs

Heat Management – Insulating basecoat

Keeping pace with new trends in construction: increase productivity and sustainability


Prefabricated and prefinished: a BIG trend in construction industry


Photo credit: Bill Ward's Brickpile via Visualhunt.com / CC BYPhoto credit: Jeanne Menjoulet via Visual hunt / CC BYPhoto credit: Photo Dudes via Visual Hunt / CC BY-ND

Panelized Modular (Volumetric)

Precast

Decorative + Insulation Boards

Siding boards /Exterior cladding

Modular housing

Prefabricated Prefinished Volumetric

Construction(PPVC)

Major transformations are happening in the construction industry: Prefabrication and modularization increasingly important.

Key benefits driving the trend


• Shorter projects

• Lower labour cost

Cost and time

Consistent and reliable product performance

Performance and durability

Safer work place

Safety

Less construction-site waste produced

Environmental

Driving the industry InnovationExample of standards on Prefabrication


ChinaType of standard Standards Region

Thermal insulation decorative board

JGT 287-2013 Whole of ChinaDBJ50/T-233-2016 Chong QingDGJ32TJ204-2016 Jiang Shu

SingaporeType of standard Standards Requirement

Building Control(BCA)

Buildability Regulations

Minimum prefabrication levels of up to 50% for both the structural and wall systemsdepending on the Gross Floor Area.

These demanding and enforced standards are shaping the industry to move more towards prefabrication

Factory Fabrication

An example:Siding boards / Exterior cladding

Smart Facades to meet the ecological challenges of urbanisationPhoto credit: matt.thompson11 via Visualhunt / CC BY

Fast and easy onsite installation

New areas of opportunity for paints and coating


Extending durability

Binder technology not traditional in Decorative paint

2K systems,…

Curing techniques- UV-curing- Higher temperature

Additional functionality

Incorporating insulation

Solar harvesting

Thank youPamela PhuaDirector, RD&I, South East & South Asia, Middle EastDirector, Exterior, Global Exterior Wall paint Expertise Group, RD&IAkzoNobel Decorative Paints

smart facades to meet the ecological challenges of urbanisation …...

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