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30

PLASTICS AND THEIR MANUFACTURE

ELASTOMERS

4.1 The use of plastics in Germany, 2007.

4.4 EPDM sealing profiles.

4.2 The applications of plastics in construction in Germany, 2007. 4.3 Acronyms for plastics according to Din En iSo 1043-1 (basic polymers) and Din iSo 1629 (rubbers and latices).

4.1

4.5 Test specimen for determining the hardness of plastics according to the

Shore classification.

4.2 Electronics 7.4 % Furniture 3.8 % Household products 2.9 % Agriculture 2.5 % Medicine 1.7 %

31

4.4

4.5

3 1.25

Vehicles 9.2 %

Packaging 32.4 %

other 14.9 % insulation 27 % Profiles 34 %

Pipes 24 %

Construction 25.2 %

30°

2.5

0.1

Shore D

other 15 %

3 1.25

4.3

2.5

Acronym

Chemical name

Acronym

Chemical name

ABS

Acrylonitrile butadiene styrene

PE-HD

Polyethylene high density

ACM

Acrylic rubber

PE-LD

Polyethylene low density

ACS

Acrylonitrile chloroprene-styrene

PE-LLD

Polyethylene linear low density

ASA

Acrylonitrile styrene acrylate

PE-MD

Polyethylene medium density

a 0.1 mm ball tip is used. Each scale results in a value between 0 and 100, with

AU

Polyurethane rubber

PE-UHMW

Polyethylene ultra high molecular weight

higher values indicating a harder material. The specific Shore scale used is indi-

Br

Butadiene rubber

PE-ULD

Polyethylene ultra low density

cated in a suffix.

CA

Cellulose acetate

PE-VLD

Polyethylene very low density

CH

Hydrated cellulose, cellulose film (cellophane)

PEEK

Polyetheretherketone

Cr

Chloroprene rubber (neoprene)

PEK

Polyetherketone

CSF

Casein formaldehyde (casein plastic)

PET

Polyethylene terephthalate

EP

Epoxy resin

PET-G

Polyethylene terephthalate modified with glycol

EPDM

Ethylene propylene diene rubber

PF

Phenol formaldehyde resin

EPM

Ethylene propylene rubber

Pi

Polyimide

ETFE

Ethylene tetrafluoroethylene

PMA

Polymethylacrylate

EU

Polyether urethane rubber

PMMA

Polymethyl methacrylate

EVAC

Ethylene vinyl acetate

PMMi

Polymethyl methacrylimide

The material has a broad working temperature range from – 30 °C to + 140 °C. it is

iir

Butyl rubber

PoM

Polyoxymethylene (= polyacetal resin)

resistant against organic solutions such as alcohol as well as inorganic solutions

ir

isoprene rubber

PP

Polypropylene

such as salts, alkali leaches and acids. EPDM exhibits strong swelling properties in

LCP

Liquid crystal polymer

PPE

Polyphenylene ether

oils and fuels, which can have a detrimental effect on the longevity of some EPDM

MF

Melamine formaldehyde resin

PS

Polystyrene

products.

MPF

Melamine phenol formaldehyde resin

PTFE

Polytetrafluoroethylene

Trade names nordel (DuPont), Buna (Lanxess), Dutral (Polimeri), Keltan (DSM),

MUF

Melamine urea formaldehyde resin

PUr

Polyurethane

Vistalon (Exxon Mobil Chemical)

nBr

nitrile butadiene rubber

PVAC

Polyvinyl acetate

Manufacture Calendering for roofing membranes; extrusion for pipes, profiles and

nr

natural rubber

PVB

Polyvinyl butyral

tubing

PA

Polyamide

PVC

Polyvinyl chloride

Working, joining Gluing; EPDM-roofing membranes can be joined at their edges of

PAC

Polyacetylene

SAn

Styrene acrylonitrile

uncross-linked PE, using hot-air welding

PAEK

Polyacryletherketone

SB

Styrene Butadiene

PAn

Polyacrylonitrile

SP

Aromatic (saturated) polyester

Applications Bridge supports; waterproofing, for example membranes for flat

PB

Polybutylene

TPE

Thermoplastic elastomer

PBT

Polybutylene terephthalate

UF

Urea formaldehyde

PC

Polycarbonate

UP

Unsaturated polyester

PE

Polyethylene

35° Shore A

0.79

ETHYLENE PROPYLENE DIENE RUBBER (EPDM) of all the elastomers, EPDM 4.4

is most widely used in the field of construction. The basis polymer EPM (ethylene propylene rubber) has excellent aging stability, weather and chemical resistance. Through the introduction of a diene, the polymer chains can be cross-linked with sulphur bridges to form ethylene propylene diene rubber (EPDM). EPDM is permanently elastic and has good mechanical properties even after extensive use. Due to its excellent UV and ozone stability, it is ideally suited for long-term use outdoors.

roofs; sealing strips in windows and façades; joint expansion strips for joints between concrete building elements

PLASTICS in Architecture and Construction  

This book seeks to fill that gap by providing an introduction to the structural and design possibilities of plastic. It introduces the mater...

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