Hi Tech & Innovation

New 'hyper glue' formula developed

With many of the products we use every day held together by adhesives, researchers from UBC's Okanagan campus and the University of Victoria hope to make everything from protective clothing to medical implants and residential ...

Robotics

A Moonshot robot is earning marks for sorting trash

Idea hatchers at the Moonshot Factory, Alphabet X, have been busy on an Everyday Robot project and its goal is quite simple. They are keen on "building a robot that can learn to operate in many different situations."

Business

Airbus nails $30B in new plane orders at Dubai Airshow

Airbus nailed down $30 billion in new plane orders on the second day of the Dubai Airshow after previous rounds of the biennial showcase saw its competitor Boeing take the lion's share of deals.

Energy & Green Tech

Marine bioplastic made with fish waste, red algae wins prize

Laura Parker in National Geographic last year: Scientists have tried to get a handle on the amount of plastic that ends up in the seas and harm to birds, marine animals, and fish. .Billions of tons of plastic have been made ...

Energy & Green Tech

Ethane storage seen as key to revitalization of Appalachia

Plans are underway in Appalachia to create two underground facilities to store ethane, a byproduct of natural gas drilling seen as integral to revitalizing a region still struggling from the loss of industrial and manufacturing ...

Engineering

Industrial 3-D printing goes skateboarding

Kayak paddles, snowshoes, skateboards. Outdoor sporting goods used to be a tough market for 3-D printing to break into, but fused particle fabrication (FPF) can change that.

Machine learning & AI

A bio-inspired approach to enhance learning in ANNs

The human brain continuously changes over time, forming new synaptic connections based on experiences and information learned over a lifetime. Over the past few years, artificial Intelligence (AI) researchers have been trying ...

Energy & Green Tech

Bike-path made from recycled plastic opens in the Netherlands

Officials with the Dutch city of Zwolle have announced the opening of a new bike path made using recycled plastic. The bike path is part of a nationwide effort to recycle more user end products. The bike path was made using ...

Engineering

MIT Rocket Team shows rocket motor printed from plastic

(Tech Xplore)—MIT Rocket Team on April 21 successfully fired a rocket motor printed from plastic. They had project support from Markforged for their 3-D printed rocket motor. They put out a video to show it in action.

Energy & Green Tech

A mobile solar-powered recycling plant that turns trash into tiles

(Tech Xplore)—A team of researchers with Miniwiz has developed a mobile recycling plant called the Trashpresso that can be hauled between locations. In addition to its mobility, it's also solar powered, making it useful ...

Engineering

As 3-D printing grows, so does need to reclaim plastic waste

UC Berkeley is a leader in 3-D printing. From creating a prosthetic hand for an 8-year-old girl to a "smart cap" that senses spoiled food to large-scale cement buildings, engineers and designers on campus are pushing the ...

page 1 from 3

Plastic

Plastic is the general common term for a wide range of synthetic or semisynthetic organic amorphous solid materials suitable for the manufacture of industrial products. Plastics are typically polymers of high molecular weight, and may contain other substances to improve performance and/or reduce costs.

The word derives from the Greek πλαστικός (plastikos) meaning fit for molding, and πλαστός (plastos) meaning molded. It refers to their malleability, or plasticity during manufacture, that allows them to be cast, pressed, or extruded into an enormous variety of shapes—such as films, fibers, plates, tubes, bottles, boxes, and much more.

The common word plastic should not be confused with the technical adjective plastic, which is applied to any material which undergoes a permanent change of shape (plastic deformation) when strained beyond a certain point. Aluminum, for instance, is plastic in this sense, but not a plastic in the common sense; while some plastics, in their finished forms, will break before deforming and therefore are not plastic in the technical sense.

There are two types of plastics: thermoplastics and thermosets. Thermoplastics, if exposed to enough heat, will melt. Thermosets will keep their shape until they are charred and burnt. Some examples of thermoplastics are grocery bags, piano keys and some automobile parts. Examples of thermosets are children's dinner sets and circuit boards.

This text uses material from Wikipedia, licensed under CC BY-SA