Plasticstrends

  • Increase font size
  • Default font size
  • Decrease font size

News Flash

For the first time, IBM researchers showed 3D molecular structure could be observed

Stanford researchers use cheap plastics film to make safe lithium batteries

Scientists from Sweden and USA showed electronics can truly be organic or say truly be plastics

A review on polymer/bioactive glass nanocomposites provides current trends in polymer research

Can polymer reinforced aerogel make a space mission? University of Akron researchers think so!

Polymers can be used to package insulin into a pill for diabetes treatment reports Indian scientists

How Collagen nanofibers could find use in Tissue Engineering

Can you “Cool Your Roof” - reports researchers from Chinese Academy of Sciences, Beijing

Plastrec, a Quebec recycler unveils recycled PET production combining two plastics technologies

Strain Paint: an alternative to strain gauges

MIT researchers show how to draw Polyethylene as nanofibers and get a very high thermal conductivity

Stratasys touts World’s first color multi-material 3D printer for rubber & plastics products

Stanford Univ researchers make Jell-O-like conducting polymer hydrogels

Plastics help design non-shatter pint glass to prevent pub attacks

A team of researchers demonstrate plastics and graphene can work together to make touch screen device a reality

USA researchers report polymeric blood-resistant surgical glue that can repair minimally invasive heart defects

IKV researchers report thermoplastic/metal hybrid materials for Direct manufacturing electronic part

Cima NanoTech flexes mussels with its non-Indium Tin Oxide, high performance transparent conductors

Will your windows generate power one day?

MIT researchers develop first Solar Thermal Fuel storage platform in solid-state

Singapore researchers touts corn starch can help solve body armour and protective sports padding

Bio-succinic acid is becoming new green platform chemical for plastics

UC Berkley researchers have developed paper thin e-skin that responds to touch

ZogglesTM earns Invention of the year 2010 award and keeps the fog away

USA researchers develop all-polymer multilayer coating to retard fire and to suppress smoke

Alberta scientists help to make Canada’s first bio-composite based electric vehicle body design

Japanese scientists report a unique, smart and self-healing polymer nanocomposite hydrogels

AMI unveils the North American Bioplastics technology agenda

Plastic Logic sees mass production of flexible display in 2008

Are you interested in self-healing polymers – must read reviews

Green Composites - all you wanted to know about

Sabic Innovative Plastics unveils its newly developed a clear flame retardant Polycarbonate copolymer

MIT team aims to develop application specific surgical adhesives to seal tissues

NIST develops greener solution to challenge commercial fire retardants

Caltech researchers show through telechelic polymers how to produce a safer and a cleaner fuel

Austrian scientists claim to be the first to have developed an image sensor that is fully transparent

Self-healing plastics healing like human skin

Can polymer reinforced aerogel make a space mission? University of Akron researchers think so!

In Milan, art and science get together to showcase Vegetal, weather resistant designer chair

Japanese researchers are developing stereo-block type PLAs for high performance materials

Austrian researcher reports new opportunities from Silicon oxide Nanofilms

Univ of Texas @ Austin scientists reported method to produce a large scale reduced graphene oxide

Can you “Cool Your Roof” - reports researchers from Chinese Academy of Sciences, Beijing

Can you 3D print yourself? TwinKinds of Germany shows just that!

How blood can clot to heal a wound - Science reports

Work of North Carolina State Univ. researchers shows how to remove radioactive elements from drinking water

Chinese researchers made a bendy polymer that could separate aromatics hydrocarbons from aliphatic

Current trends and future prospects for flame retardants in polymeric materials

Harvard University researchers design stretchable, transparent ionic conductors

Using biodegradable polymer, University of Basque country researcher report on bone regeneration

Current status in graphene based polymer nanocomposites – a review

Can polycarbonate be replaced with another polymer? Click chemistry might provide the answer!

Umass, Amherst researchers find ways to hold 300 kilograms of weight using sticky tape

New ambipolar polymer beats others: reports US researchers

McMaster university (Canada) researchers developed flexible solar cell technology

Carbon3D, a Canadian company unveils a breakthrough technology for layerless 3D printing

Block copolymers could create hard disks with 10 tera-bit-per-Square-inch:Researchers predict

Korean scientists provide a different twist to the “Smart Window” technology

Wax could be green too – touts GreenMantra Technolgies!

A novel technique to manufacture continuous twisted yarn from aligned PAN nanofibers

Norner touts major research project on polymers based on carbon dioxide

It is time to make “Perfect Plastic” reports UK researchers

French scientists tout first use of nano-structured assemblies that could revolutionize dentistry

Nanoparticle coating prevents ice build up

Rice Univ (USA) researchers grew high quality graphene from polystyrene, cookies, grass, cockroach leg & dog feces

A new microcellular injection molding process for polycarbonate using water

Polymer helps to designing higher capacity Li-ion battery

Rutgers Univ researchers moves plastic electronics with graphene based PS thin films

If you follow plastics electronics - follow Unidym’s innovative product lines

US researchers develop shape memory polymer nanocomposites exhibiting fast actuation speed

Polymer bank notes on the rise to avoid counterfeit paper currencies

Binder free multilayer graphene based polymer composite for high performance supercapacitor electrodes

Harvard Univ researchers show how soft robotics could navigate a difficult obstacle

Researchers develop unique printable thin film supercapacitor using SWCNT

Innovations in design come from plastics to win several 2009 International Design Excellence Awards

Teijin Techno Products claims to be world’s first mass producer of aramid nanofibers

How computer modelling & 3D printing create fracture resistant composites – reports Stratasys and MIT researchers

Oil-SAP, a novel development to clean-up oil spill & recovery from Penn State University, USA

Non-toxic, liquid bandage from Chesson Labs of Durham, NC is ready for the healthcare market

GM recycles oil soaked booms from the Gulf of Mexico for its Chevrolet Volt under hood parts

Scientists from IBM and Stanford University are developing new plastics recycling process

Can Gas Jet process challenge electrospinning in producing polymeric nanofibers?

Brazilian scientists are actively pursuing bioplastics research and innovation

German researchers unveiled a green approach to electrospinning technique for making biodegradable nanofibres

Practical Devices provide useful power from the body

Arkema unveils a range of "green" polymers for its textile market

Researchers show stretchy battery for flexible and stretchable electronics

UCLA scientists showed how simple it could be to make conducting polymer thin films

Are you an injection moulder, you may want to read the ultimate in mould cooling article

How plastics helping revolutionize stretchable electronics applications – a review, not to be missed!

3D systems introduces non-halogenated flame retardant for aircraft applications

Researchers gather to discuss advances in organic photovoltaics (OPV)

MIT researchers develop first Solar Thermal Fuel storage platform in solid-state

University of Texas at Austin researchers show use of polymer membranes for fracking in shale gas

Electric Glue: Another twist to make controlled polymer-surface adhesion

Stanford university researchers detect mercury ions in sea water using organic polymer transistor sensor

Swedish researchers show highest reported charge capacities for all polymer paper-based battery

Battelle researchers are improving PLA for injection molding applications

Canadian researchers claim world’s most efficient “inverted” OPV solar cells

Yale scientists develop high performance thin film composite membrane

Polymers help Addidas to launch lightest soccer boots and 2010 FIFA World cup match ball never seen before in the field

James Cropper Speciality Paper touts recycling of disposable coffee cups

Bayer uses PC film Makrofol? for it's new Innosec Fusion? technology to stop counterfeiting

US and South Korean researchers develop a printing technique to make high performance CNT transistors

Kyoto researchers are upbeat about cellulose nanofibers based composites for auto parts

Princeton university researchers embedded piezoelectric material onto polymer as energy harvester

Mannigton converts large stickers from 2010 winter games into commercial flooring

Siver nanowire electrodes for flexible electronics

Something old... Something new.... produces an interesting marriage

Advanced nanocomposite membrane technology of NanoH2O turns it to a Global clean technology company

World’s first all-plastic LED lamp comes from Japan

Work of North Carolina State Univ. researchers shows how to remove radioactive elements from drinking water

Braskem S.A. is leading the way to manufacture biobased polyethylene using catalytic dehydration

Prof. Alan Heegers group demonstrated the potential of plastics solar cells

Researchers review how to characterize polymer nanocomposites by different microscopicy techniques

A new microcellular injection molding process for polycarbonate using water

E-mail Print PDF

Scientist from university of Wisconsin-Madison (USA) and South China university of Technology collaborated to develop a new microcellular process for polycarbonate (PC) using water as the physical blowing agent.

Water is not a new blowing agent to polymer scientists. It has been used both as a chemical blowing agent as well as physical blowing agent to make polyurethane foam. The main issue that a molder encounters is the surface imperfections (roughness). Roughness arises from released gas (from super critical nitrogen or carbon dioxide) from the melting polymer and from the rate of cell nucleation.

In this work, authors used a commercial grade PC (Lexan 141), water and salt (sodium chloride) to make microcellular polycarbonate part. A typical injection molding machine was used. Authors claimed that the solution dispensing valve and meter on the top of typical injection molding hopper is simpler and cost-effective than a commercial microcellular injection unit. A weight reduction of ~10% is easily obtained. The PC part using salt solution provided smooth surface comparable to that of solid PC surface.

Advances in microcellular injection molding process appear to be heating up again.

Reference: J. Peng, L-S. Turng, and X-F. Peng; Polym Eng. Sci., 52, pp 1464-1473 (2012). DOI: 10.1002/pen.23092