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High-density polyethylene

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High-density polyethylene (HDPE) or polyethylene high-density (PEHD) is a polyethylene thermoplastic made from petroleum. [1]

64 relations: Autoclave, Bisphenol A, Blow molding, Bottle cap, Branching (polymer chemistry), Catalysis, Chemical compound, Chemical reaction, Chemical resistance, Coaxial cable, Corrosion, Cross-linked polyethylene, Embodied energy, Extrusion, Fireworks, Folding chair, Food storage container, Fuel tank, Geomembrane, Geothermal heating, Groundwater, Hard hat, Hula hoop, Intermolecular force, Landfill, Landfill liner, Last, Lens (optics), Linear low-density polyethylene, Low-density polyethylene, Medium-density polyethylene, Mortar (weapon), Municipal solid waste, Natural gas, Petroleum, Phillips disaster of 1989, Plastic bag, Plastic bottle, Plastic lumber, Plastic recycling, Plastic surgery, Pollution, Polyethylene, Polypropylene, Pyrotechnics, Recyclebot, Recycling, Resin identification code, Root barrier, Snowboard, ..., Soil, Solvent, Specific strength, Stone paper, Stretch wrap, Temperature, Thermoplastic, Tyvek, Ultimate tensile strength, Ultra-high-molecular-weight polyethylene, Water pipe, Wood-plastic composite, Ziegler–Natta catalyst, 3D printing. Expand index (14 more) »


An autoclave is a pressure chamber used to sterilize equipment and supplies by subjecting them to high pressure saturated steam at 121 °C (249°F) for around 15–20 minutes depending on the size of the load and the contents.

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Bisphenol A

Bisphenol A (BPA) is an organic synthetic compound with the chemical formula (CH3)2C(C6H4OH)2 belonging to the group of diphenylmethane derivatives and bisphenols, with two hydroxyphenyl groups.

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Blow molding

Blow molding (BrE moulding) is a manufacturing process by which hollow plastic parts are formed.

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Bottle cap

A bottle cap seals the top opening of a bottle.

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Branching (polymer chemistry)

In polymer chemistry, branching occurs by the replacement of a substituent, e.g., a hydrogen atom, on a monomer subunit, by another covalently bonded chain of that polymer; or, in the case of a graft copolymer, by a chain of another type.

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Catalysis is the increase in the rate of a chemical reaction due to the participation of an additional substance called a catalyst.

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Chemical compound

A chemical compound (or just compound if used in the context of chemistry) is an entity consisting of two or more different atoms which associate via chemical bonds.

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Chemical reaction

A chemical reaction is a process that leads to the transformation of one set of chemical substances to another.

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Chemical resistance

The chemical resistance of a material or surface can be determined in compliance with ISO 2812 Paints and varnishes – Determination of resistance to liquids – Part 1: Immersion in liquids other than water (ISO 2812-1:2007); German Version EN ISO 2812-1:2007 or Part 4: Spotting methods (ISO 2812-4:2007); German Version EN ISO 2812-4:2007.

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Coaxial cable

Coaxial cable, or coax (pronounced), is a type of cable that has an inner conductor surrounded by a tubular insulating layer, surrounded by a tubular conducting shield.

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Corrosion is a natural process, which converts refined metal to their more stable oxide.

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Cross-linked polyethylene

Cross-linked polyethylene, commonly abbreviated PEX or XLPE, is a form of polyethylene with cross-links.

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Embodied energy

Embodied energy is the sum of all the energy required to produce any goods or services, considered as if that energy was incorporated or 'embodied' in the product itself.

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

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Fireworks are a class of explosive pyrotechnic devices used for aesthetic, cultural, and religious purposes.

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Folding chair

A folding chair is a light, portable chair that folds flat, and can be stored in a stack, row, or on a cart.

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Food storage container

Food storage containers are widespread in use throughout the world and have probably been in use since the first human civilisations.

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Fuel tank

A fuel tank (or petrol tank) is a safe container for flammable fluids.

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A geomembrane is very low permeability synthetic membrane liner or barrier used with any geotechnical engineering related material so as to control fluid (or gas) migration in a human-made project, structure, or system.

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Geothermal heating

Geothermal heating is the direct use of geothermal energy for heating applications.

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Groundwater (or ground water) is the water present beneath Earth's surface in soil pore spaces and in the fractures of rock formations.

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Hard hat

A hard hat is a type of helmet predominantly used in workplace environments such as industrial or construction sites to protect the head from injury due to falling objects, impact with other objects, debris, rain, and electric shock.

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Hula hoop

A hula hoop is a toy hoop that is twirled around the waist, limbs or neck.

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Intermolecular force

Intermolecular forces are forces of attraction or repulsion which act between neighboring particles (atoms, molecules or ions).

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A landfill site (also known as a tip, dump, rubbish dump or dumping ground and historically as a midden) is a site for the disposal of waste materials by burial and is the oldest form of waste treatment.

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Landfill liner

A landfill liner, or composite liner, is intended to be a low permeable barrier, which is laid down under engineered landfill sites.

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A last is a mechanical form that has a shape similar to that of a human foot.

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Lens (optics)

A lens is a transmissive optical device that affects the focus of a light beam through refraction.

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Linear low-density polyethylene

Linear low-density polyethylene (LLDPE) is a substantially linear polymer (polyethylene), with significant numbers of short branches, commonly made by copolymerization of ethylene with longer-chain olefins.

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Low-density polyethylene

Low-density polyethylene (LDPE) is a thermoplastic made from the monomer ethylene.

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Medium-density polyethylene

Medium-density polyethylene (MDPE) is a type of polyethylene defined by a density range of 0.926–0.940 g/cm3.

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Mortar (weapon)

A mortar is a weapon that fires explosive projectiles known as (mortar) bombs at low velocities, short ranges, and high-arcing ballistic trajectories.

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Municipal solid waste

Municipal solid waste (MSW), commonly known as trash or garbage in the U.S. and as refuse or rubbish in the UK, is a waste type consisting of everyday items that are discarded by the public.

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Natural gas

Natural gas is a fossil fuel formed when layers of decomposing plant and animal matter are exposed to intense heat and pressure over thousands of years.

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Petroleum (L. petroleum, from early 15c. "petroleum, rock oil" (mid-14c. in Anglo-French), from Medieval Latin petroleum, from petra: "rock" + ''oleum'': "oil".) is a naturally occurring, yellow-to-black liquid found in geological formations beneath the Earth's surface, which is commonly refined into various types of fuels.

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Phillips disaster of 1989

The Phillips disaster was a devastating series of explosions and fire on October 23, 1989, near the Houston Ship Channel in Pasadena, Texas, USA.

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Plastic bag

A plastic bag, polybag, or pouch is a type of container made of thin, flexible, plastic film, nonwoven fabric, or plastic textile.

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Plastic bottle

A plastic bottle is a bottle constructed by plastic.

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Plastic lumber

Plastic lumber (PL) is a plastic form of lumber (timber) made of virgin or recycled plastic.

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Plastic recycling

Plastic recycling is the process of recovering scrap or waste plastic and reprocessing the material into useful products, sometimes completely different in form from their original state.

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Plastic surgery

Plastic surgery is a medical procedure with the purpose of alteration or restoring the form of the body.

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Pollution is the introduction of contaminants into the natural environment that cause adverse change.

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Polyethylene (abbreviated PE) or polyethene (IUPAC name polyethene or poly(methylene)) is the most common plastic.

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Polypropylene (PP), also known as polypropene, is a thermoplastic polymer used in a wide variety of applications including packaging and labeling, textiles (e.g., ropes, thermal underwear and carpets), stationery, plastic parts and reusable containers of various types, laboratory equipment, loudspeakers, automotive components, and polymer banknotes.

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Pyrotechnics is the science of using materials capable of undergoing self-contained and self-sustained exothermic chemical reactions for the production of heat, light, gas, smoke and/or sound.

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A recyclebot (or RecycleBot) is an open-source hardware device for converting waste plastic into filament for open-source 3D printers like the RepRap.

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Recycling is a process to convert waste materials into new products to prevent waste of potentially useful materials, reduce the consumption of fresh raw materials, reduce energy usage, reduce air pollution (from incineration) and water pollution (from landfilling) by reducing the need for "conventional" waste disposal and lower greenhouse gas emissions as compared to plastic production.

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Resin identification code

The SPI resin identification coding system is a set of symbols placed on plastics to identify the polymer type.

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Root barrier

Root barrier is a physical underground wall, placed so that structures and plants may cohabit happily together.

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Snowboards are boards that are usually the width of one's foot longways, with the ability to glide on snow.

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Soil is the mixture of minerals, organic matter, gases, liquids, and the countless organisms that together support life on earth.

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A solvent (from the Latin solvō, "I loosen, untie, I solve") is a substance that dissolves a solute (a chemically different liquid, solid or gas), resulting in a solution.

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Specific strength

The specific strength is a material's strength (force per unit area at failure) divided by its density.

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Stone paper

Stone paper (also known as rock paper, paper from waste marble, mineral paper, or rich mineral paper) is a paper-like product manufactured from calcium carbonate bonded with high-density polyethylene (HDPE).

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Stretch wrap

Stretch wrap or stretch film is a highly stretchable plastic film that is wrapped around items.

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A temperature is an objective comparative measure of hot or cold.

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

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Tyvek is a brand of flashspun high-density polyethylene fibers, a synthetic material; the name is a registered trademark of DuPont.

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Ultimate tensile strength

Ultimate tensile strength (UTS), often shortened to tensile strength (TS) or ultimate strength, is the maximum stress that a material can withstand while being stretched or pulled before failing or breaking.

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Ultra-high-molecular-weight polyethylene

Ultra-high-molecular-weight polyethylene (UHMWPE, UHMW) is a subset of the thermoplastic polyethylene.

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Water pipe

A water pipe is a pipe or tube, frequently made of plastic or metal, that carries pressurized and treated fresh water to a building (as part of a municipal water system), as well as inside the building.

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Wood-plastic composite

Wood-plastic composites (WPCs) are composite materials made of wood fiber/wood flour and thermoplastic(s) (includes PE, PP, PVC etc.). Chemical additives seem practically "invisible" (except mineral fillers and pigments, if added) in the composite structure.

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Ziegler–Natta catalyst

A Ziegler–Natta catalyst, named after Karl Ziegler and Giulio Natta, is a catalyst used in the synthesis of polymers of 1-alkenes (alpha-olefins).

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3D printing

3D printing (also known as additive manufacturing) is any of various processes used to synthesize a three-dimensional object.

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[1] https://en.wikipedia.org/wiki/High-density_polyethylene

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