Logo
Unionpedia
Communication
Get it on Google Play
New! Download Unionpedia on your Android™ device!
Free
Faster access than browser!
 

Shape-memory polymer

Index Shape-memory polymer

Shape-memory polymers (SMPs) are polymeric smart materials that have the ability to return from a deformed state (temporary shape) to their original (permanent) shape induced by an external stimulus (trigger), such as temperature change. [1]

49 relations: Austenite, Biodegradation, Blow molding, Boltzmann's entropy formula, Carbon nanotube, Cinnamic acid, Copolymer, Creep (deformation), Cross-link, DARPA, Elastomer, Entropy, Extrusion, Georgia Institute of Technology, Glass transition, Glycerol, Injection moulding, Ionizing radiation, Magnetic field, Magnetite, Maleic anhydride, Martensite, Mnemosyne, Molar mass distribution, Nanocellulose, Nanoparticle, Nickel, Nitric acid, Orthopedic surgery, Out of autoclave composite manufacturing, Polyether ether ketone, Polyethylene glycol, Polyethylene terephthalate, Polystyrene, Polytetrahydrofuran, Polyurethane, Prepolymer, Shape-memory alloy, Silsesquioxane, Smart material, Stent, Sulfuric acid, Surgical suture, Synthetic biodegradable polymer, Thermoplastic, Thermosetting polymer, Trimethylolpropane, Ultraviolet, Vulcanization.

Austenite

Austenite, also known as gamma-phase iron (γ-Fe), is a metallic, non-magnetic allotrope of iron or a solid solution of iron, with an alloying element.

New!!: Shape-memory polymer and Austenite · See more »

Biodegradation

Biodegradation is the disintegration of materials by bacteria, fungi, or other biological means.

New!!: Shape-memory polymer and Biodegradation · See more »

Blow molding

Blow molding (BrE moulding) is a specific manufacturing process by which hollow plastic parts are formed and can be joined together: It is also used for forming glass bottles or other hollow shapes.

New!!: Shape-memory polymer and Blow molding · See more »

Boltzmann's entropy formula

In statistical mechanics, Boltzmann's equation is a probability equation relating the entropy S of an ideal gas to the quantity W, the number of real microstates corresponding to the gas' macrostate: where kB is the Boltzmann constant (also written as simply k) and equal to 1.38065 × 10−23 J/K.

New!!: Shape-memory polymer and Boltzmann's entropy formula · See more »

Carbon nanotube

Carbon nanotubes (CNTs) are allotropes of carbon with a cylindrical nanostructure.

New!!: Shape-memory polymer and Carbon nanotube · See more »

Cinnamic acid

Cinnamic acid is an organic compound with the formula C6H5CHCHCO2H.

New!!: Shape-memory polymer and Cinnamic acid · See more »

Copolymer

When two or more different monomers unite together to polymerize, the product is called a copolymer and the process is called copolymerization.

New!!: Shape-memory polymer and Copolymer · See more »

Creep (deformation)

In materials science, creep (sometimes called cold flow) is the tendency of a solid material to move slowly or deform permanently under the influence of mechanical stresses.

New!!: Shape-memory polymer and Creep (deformation) · See more »

Cross-link

A cross-link is a bond that links one polymer chain to another.

New!!: Shape-memory polymer and Cross-link · See more »

DARPA

The Defense Advanced Research Projects Agency (DARPA) is an agency of the United States Department of Defense responsible for the development of emerging technologies for use by the military.

New!!: Shape-memory polymer and DARPA · See more »

Elastomer

An elastomer is a polymer with viscoelasticity (i. e., both viscosity and elasticity) and very weak intermolecular forces, and generally low Young's modulus and high failure strain compared with other materials.

New!!: Shape-memory polymer and Elastomer · See more »

Entropy

In statistical mechanics, entropy is an extensive property of a thermodynamic system.

New!!: Shape-memory polymer and Entropy · See more »

Extrusion

Extrusion is a process used to create objects of a fixed cross-sectional profile.

New!!: Shape-memory polymer and Extrusion · See more »

Georgia Institute of Technology

The Georgia Institute of Technology, commonly referred to as Georgia Tech, is a public research university and institute of technology in Atlanta, Georgia.

New!!: Shape-memory polymer and Georgia Institute of Technology · See more »

Glass transition

The glass–liquid transition, or glass transition, is the gradual and reversible transition in amorphous materials (or in amorphous regions within semicrystalline materials), from a hard and relatively brittle "glassy" state into a viscous or rubbery state as the temperature is increased.

New!!: Shape-memory polymer and Glass transition · See more »

Glycerol

Glycerol (also called glycerine or glycerin; see spelling differences) is a simple polyol compound.

New!!: Shape-memory polymer and Glycerol · See more »

Injection moulding

Injection moulding (British English) or injection molding (American English) is a manufacturing process for producing parts by injecting molten material into a mould.

New!!: Shape-memory polymer and Injection moulding · See more »

Ionizing radiation

Ionizing radiation (ionising radiation) is radiation that carries enough energy to liberate electrons from atoms or molecules, thereby ionizing them.

New!!: Shape-memory polymer and Ionizing radiation · See more »

Magnetic field

A magnetic field is a vector field that describes the magnetic influence of electrical currents and magnetized materials.

New!!: Shape-memory polymer and Magnetic field · See more »

Magnetite

Magnetite is a rock mineral and one of the main iron ores, with the chemical formula Fe3O4.

New!!: Shape-memory polymer and Magnetite · See more »

Maleic anhydride

Maleic anhydride is an organic compound with the formula C2H2(CO)2O.

New!!: Shape-memory polymer and Maleic anhydride · See more »

Martensite

Martensite, named after the German metallurgist Adolf Martens (1850–1914), most commonly refers to a very hard form of steel crystalline structure, but it can also refer to any crystal structure that is formed by diffusionless transformation.

New!!: Shape-memory polymer and Martensite · See more »

Mnemosyne

Mnemosyne (Μνημοσύνη) is the goddess of memory in Greek mythology.

New!!: Shape-memory polymer and Mnemosyne · See more »

Molar mass distribution

In linear polymers the individual polymer chains rarely have exactly the same degree of polymerization and molar mass, and there is always a distribution around an average value.

New!!: Shape-memory polymer and Molar mass distribution · See more »

Nanocellulose

Nanocellulose is a term referring to nano-structured cellulose.

New!!: Shape-memory polymer and Nanocellulose · See more »

Nanoparticle

Nanoparticles are particles between 1 and 100 nanometres (nm) in size with a surrounding interfacial layer.

New!!: Shape-memory polymer and Nanoparticle · See more »

Nickel

Nickel is a chemical element with symbol Ni and atomic number 28.

New!!: Shape-memory polymer and Nickel · See more »

Nitric acid

Nitric acid (HNO3), also known as aqua fortis (Latin for "strong water") and spirit of niter, is a highly corrosive mineral acid.

New!!: Shape-memory polymer and Nitric acid · See more »

Orthopedic surgery

Orthopedic surgery or orthopedics, also spelled orthopaedic, is the branch of surgery concerned with conditions involving the musculoskeletal system.

New!!: Shape-memory polymer and Orthopedic surgery · See more »

Out of autoclave composite manufacturing

Out of autoclave composite manufacturing is an alternative to the traditional high pressure autoclave (industrial) curing process commonly used by the aerospace manufacturers for manufacturing composite material.

New!!: Shape-memory polymer and Out of autoclave composite manufacturing · See more »

Polyether ether ketone

Polyether ether ketone (PEEK) is a colourless organic thermoplastic polymer in the polyaryletherketone (PAEK) family, used in engineering applications.

New!!: Shape-memory polymer and Polyether ether ketone · See more »

Polyethylene glycol

Polyethylene glycol (PEG) is a polyether compound with many applications from industrial manufacturing to medicine.

New!!: Shape-memory polymer and Polyethylene glycol · See more »

Polyethylene terephthalate

Polyethylene terephthalate (sometimes written poly(ethylene terephthalate)), commonly abbreviated PET, PETE, or the obsolete PETP or PET-P, is the most common thermoplastic polymer resin of the polyester family and is used in fibres for clothing, containers for liquids and foods, thermoforming for manufacturing, and in combination with glass fibre for engineering resins.

New!!: Shape-memory polymer and Polyethylene terephthalate · See more »

Polystyrene

Polystyrene (PS) is a synthetic aromatic hydrocarbon polymer made from the monomer styrene.

New!!: Shape-memory polymer and Polystyrene · See more »

Polytetrahydrofuran

Polytetrahydrofuran, also called poly(tetramethylene ether) glycol or poly(tetramethylene oxide), is a chemical compound with formulanOH2 or HO-(-(CH2)4O-)n-H. It can be viewed as a polymer of tetrahydrofuran, or as the polyether derived from 1,4-butanediol.

New!!: Shape-memory polymer and Polytetrahydrofuran · See more »

Polyurethane

Polyurethane (PUR and PU) is a polymer composed of organic units joined by carbamate (urethane) links.

New!!: Shape-memory polymer and Polyurethane · See more »

Prepolymer

The term pre-polymer refers to a monomer or system of monomers that have been reacted to an intermediate molecular mass state.

New!!: Shape-memory polymer and Prepolymer · See more »

Shape-memory alloy

A shape-memory alloy (SMA, smart metal, memory metal, memory alloy, muscle wire, smart alloy) is an alloy that "remembers" its original shape and that when deformed returns to its pre-deformed shape when heated.

New!!: Shape-memory polymer and Shape-memory alloy · See more »

Silsesquioxane

A cubic silsesquioxane. A silsesquioxane is an organosilicon compound with the chemical formula n (R.

New!!: Shape-memory polymer and Silsesquioxane · See more »

Smart material

Smart materials, called also intelligent or responsive materials, are designed materials that have one or more properties that can be significantly changed in a controlled fashion by external stimuli, such as stress, temperature, moisture, pH, electric or magnetic fields, light, or chemical compounds.

New!!: Shape-memory polymer and Smart material · See more »

Stent

In medicine, a stent is a metal or plastic tube inserted into the lumen of an anatomic vessel or duct to keep the passageway open, and stenting is the placement of a stent.

New!!: Shape-memory polymer and Stent · See more »

Sulfuric acid

Sulfuric acid (alternative spelling sulphuric acid) is a mineral acid with molecular formula H2SO4.

New!!: Shape-memory polymer and Sulfuric acid · See more »

Surgical suture

Surgical suture is a medical device used to hold body tissues together after an injury or surgery.

New!!: Shape-memory polymer and Surgical suture · See more »

Synthetic biodegradable polymer

Many opportunities exist for the application of synthetic biodegradable polymers in the biomedical area particularly in the fields of tissue engineering and controlled drug delivery.

New!!: Shape-memory polymer and Synthetic biodegradable polymer · See more »

Thermoplastic

A thermoplastic, or thermosoftening plastic, is a plastic material, a polymer, that becomes pliable or moldable above a specific temperature and solidifies upon cooling.

New!!: Shape-memory polymer and Thermoplastic · See more »

Thermosetting polymer

A thermoset, also called a thermosetting plastic, is a plastic that is irreversibly cured from a soft solid or viscous liquid, prepolymer or resin.

New!!: Shape-memory polymer and Thermosetting polymer · See more »

Trimethylolpropane

300 C--> Trimethylolpropane (TMP) is the organic compound with the formula CH3CH2C(CH2OH)3.

New!!: Shape-memory polymer and Trimethylolpropane · See more »

Ultraviolet

Ultraviolet (UV) is electromagnetic radiation with a wavelength from 10 nm to 400 nm, shorter than that of visible light but longer than X-rays.

New!!: Shape-memory polymer and Ultraviolet · See more »

Vulcanization

Vulcanization or vulcanisation is a chemical process for converting natural rubber or related polymers into more durable materials by heating them with sulfur or other equivalent curatives or accelerators.

New!!: Shape-memory polymer and Vulcanization · See more »

Redirects here:

LASMP, Shape Memory Polymer, Shape Memory Polymers, Shape memory polymer, Shape memory polymers.

References

[1] https://en.wikipedia.org/wiki/Shape-memory_polymer

OutgoingIncoming
Hey! We are on Facebook now! »