PE-HD (20-30% long glass fiber)

Designation

High density polyethylene / HDPE (20-30% Long Glass Fiber)

Tradenames

Alathon; Alkathene; Alkatuff; Alphacan; Alpolic; Appryl; Argentina-I; Argetena-J; Aspun; Asrene; Bapolene; Borstar; Bralen; Bynel; Celstran; Cestidur; Cestilene; Cestilite; Champline; Clearflex; Cogefill; Cogegum; Compotene; Cosmothene; Cotene; Cpgseaboard; Daelimpoly; Dafnelen; Daisolac; Densetec; Dinalen; Dowlex; Dpe; Dunalon; Dynex; Elenac; Elite; El-Lene; Eltex; Eraclene; Ethafoam; Etilinas; Evatane; Evolue; Exxco; Farralloy; Ferrene; Finathane; Flexet; Flexirene; Forlink; Formolene; Fortiflex; Funecon; Getilan; G-Lene; G-Lex; Halene; Harmorex; Hid; Hipersite; Hitec; Hival; Hivorex; Hiwax; Hi-Zex; Hostalen; Illen; Indothene; Innovex; Ipethene; J-Rex; Kemcor; Lacqtene; Lagomix; Lagotene; Lamdex; Lintech; Liten; Lubotene; Lucofin; Luflexen; Lumitac; Lupolen; Lupolex; Malen-E; Marflex; Marlex; Maxbatch; Maxlen; Microlen; Microthene; Mirason; Mirathen; Mpact; Nevilen; Nipolon; Nissen; Nortuff; Novapol; Novatec; Novex; Okiten; Osstyrol; Padmex; Paxon; Perlene; Petilen; Petrothene; Plastazote; Polidan; Polinter; Polyfort; Polystone; Pre-Elec; Pro-Fax; Reclair; Relene; Repolen; Rexell; Riblene; Rigidex; Rotoflame; Sanalite; Sanatec; Sanren; Schulink; Scolefin; S-Com; Seetec; Spherilin; Stamylan; Stamylex; Sumikathene; Sunfine; Suntec; Suplex; Syncure; Tecafine; Thai-Zex; Thermolen; Tipilen; Tipolen; Tracel; Tracolen; Tuflin; Tyvek; Ultzex; Umerit; Unival; Venelene; Vstolen; Vultracell; Vyon; Vytek; Yuhwa; Yukalon; Zemid

Typical uses

Pipes, toys, bowls, buckets, milk bottles, crates, tanks, containers, film for packaging, blown bottles for food.

Compositional summary

(CH2-CH2)n + glass filler
Material family	Plastic (thermoplastic, semi- crystalline)
Base material	PE-HD (Polyethylene, high density)
% filler (by weight)	20-30 %
Filler/reinforcement	Glass
Filler/reinforcement form	Long fiber (>5mm)
Polymer code	PE-HD-LGF25

Composition detail (polymers and natural materials)

Polymer	70	–	80	%
Glass (fiber)	20	–	30	%

Physical properties

Density

1.09

–

1.18

g/cm³

Mechanical properties

Young’s modulus	5.52	–	6.21	GPa
Specific stiffness	4.81	–	5.54	MN.m/kg
Yield strength (elastic limit)	38.6	–	46.9	MPa
Tensile strength	48.3	–	58.6	MPa
Specific strength	33.8	–	41.6	kN.m/kg
Elongation	2	–	2.5	% strain
Compressive modulus	5.52	–	6.21	GPa
Compressive strength	34.5	–	41.4	MPa
Flexural modulus	4.13	–	5.5	GPa
Flexural strength (modulus of rupture)	55.2	–	65.5	MPa
Shear modulus	2.01	–	2.26	GPa
Bulk modulus	7.47	–	7.84	GPa
Poisson’s ratio	0.365	–	0.38
Shape factor	10.2
Hardness – Vickers	12	–	14	HV
Hardness – Rockwell M	48	–	52
Hardness – Rockwell R	75	–	90
Elastic stored energy (springs)	128	–	187	kJ/m³
Fatigue strength at 10^7 cycles	18.8	–	24.4	MPa

Impact & fracture properties

Fracture toughness	1.72	–	4.61	MPa.m^0.5
Toughness (G)	0.593	–	3.08	kJ/m²
Impact strength, notched 23 °C	13	–	18	kJ/m²
Impact strength, notched -30 °C	12.7	–	15.4	kJ/m²
Impact strength, unnotched 23 °C	18.2	–	22	kJ/m²
Impact strength, unnotched -30 °C	16.4	–	19.8	kJ/m²

Thermal properties

Melting point	120	–	140	°C
Glass temperature	-125	–	-90	°C
Heat deflection temperature 0.45MPa	121	–	127	°C
Heat deflection temperature 1.8MPa	116	–	121	°C
Maximum service temperature	90	–	110	°C
Minimum service temperature	-82	–	-72	°C
Thermal conductivity	0.351	–	0.365	W/m.°C
Specific heat capacity	1.6e3	–	1.66e3	J/kg.°C
Thermal expansion coefficient	70.8	–	72.2	µstrain/°C
Thermal shock resistance	90.9	–	114	°C
Thermal distortion resistance	0.0049	–	0.00512	MW/m

Electrical properties

Electrical resistivity	3.3e24	–	3e25	µohm.cm
Electrical conductivity	5.75e-24	–	5.22e-23	%IACS
Dielectric constant (relative permittivity)	2.7	–	2.9
Dissipation factor (dielectric loss tangent)	5e-4	–	0.001
Dielectric strength (dielectric breakdown)	18.7	–	22.4	MV/m
Comparative tracking index	600			V

Magnetic properties

Magnetic type

Non-magnetic

Optical, aesthetic and acoustic properties

Transparency	Opaque
Acoustic velocity	2190	–	2350	m/s
Mechanical loss coefficient (tan delta)	0.0111	–	0.0121

Absorption & permeability

Water absorption @ 24 hrs

0.05

–

0.06

Processing properties

Polymer injection molding	Acceptable
Polymer extrusion	Acceptable
Polymer thermoforming	Limited use
Linear mold shrinkage	0.2	–	0.4	%
Melt temperature	230	–	316	°C
Mold temperature	30	–	50	°C
Molding pressure range	68.8	–	138	MPa

Durability

Water (fresh)	Excellent
Water (salt)	Excellent
Weak acids	Excellent
Strong acids	Acceptable
Weak alkalis	Excellent
Strong alkalis	Excellent
Organic solvents	Limited use
Oxidation at 500C	Unacceptable
UV radiation (sunlight)	Fair
Flammability	Highly flammable