Low Density Polyethylene (LDPE)
Low Density Polyethylene LDPE is part of the Polyethylene family of thermoplastics which include HDPE and MDPE. LDPE has the least dense molecular structure, when ethylene is polymerized it is straight polymer chains, with branches from a main chain, LDPE has the most branching as so is least dense.
LDPE, HDPE, LLDPE, PP are polyolefins, which are high molecular weight hydrocarbons, they are some of the only plastics existing that have a lower specific gravity, weighing less than water. They are susceptible to oxidation and UV damage.
LDPE is lighweight and flexible, so often used in the manufacture of various containers, dispensers, squeeze bottles, tubing, plastic parts and moulded elements of computers and equipment. On constructions sites and factories it os often used as key element to pallets packing and shipping as a shrink wrap.
[edit] Related articles on Designing Buildings
- Glass reinforced plastic GRP
- Glass fibre reinforced plastic
- High Density Polyethylene (HDPE)
- High Density Polypropylene (HDPP)
- Polycarbonate plastic
- Polypropylene in the construction industry.
- Plastic cladding
- Plastic coating market
- Plastic in construction
- Plastic in concrete
- Recycled plastic bridges
- Wood plastic composites market for construction
Featured articles and news
Twas the site before Christmas...
A rhyme for the industry and a thankyou to our supporters.
Plumbing and heating systems in schools
New apprentice pay rates coming into effect in the new year
Addressing the impact of recent national minimum wage changes.
EBSSA support for the new industry competence structure
The Engineering and Building Services Skills Authority, in working group 2.
Notes from BSRIA Sustainable Futures briefing
From carbon down to the all important customer: Redefining Retrofit for Net Zero Living.
Principal Designer: A New Opportunity for Architects
ACA launches a Principal Designer Register for architects.
A new government plan for housing and nature recovery
Exploring a new housing and infrastructure nature recovery framework.
Leveraging technology to enhance prospects for students
A case study on the significance of the Autodesk Revit certification.
Fundamental Review of Building Regulations Guidance
Announced during commons debate on the Grenfell Inquiry Phase 2 report.
CIAT responds to the updated National Planning Policy Framework
With key changes in the revised NPPF outlined.
Councils and communities highlighted for delivery of common-sense housing in planning overhaul
As government follows up with mandatory housing targets.
CIOB photographic competition final images revealed
Art of Building produces stunning images for another year.
HSE prosecutes company for putting workers at risk
Roofing company fined and its director sentenced.
Strategic restructure to transform industry competence
EBSSA becomes part of a new industry competence structure.
Major overhaul of planning committees proposed by government
Planning decisions set to be fast-tracked to tackle the housing crisis.
Industry Competence Steering Group restructure
ICSG transitions to the Industry Competence Committee (ICC) under the Building Safety Regulator (BSR).
Principal Contractor Competency Certification Scheme
CIOB PCCCS competence framework for Principal Contractors.
The CIAT Principal Designer register
Issues explained via a series of FAQs.