Glass Fiber

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Young's Corporation

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Contact Info

Add:11, GANGNAM-DAERO 18-GIL, SEOCHO-GU, SEOUL, KOREA, Zip: 137-130
Contact: Mr. S.W.PARK
Tel:+82-2-2155-5842
Email:export@youngscorp.com

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Description

Additional Information

■ FIBER GLASS

FIBER GLASS is a glass product, manufactured in combining raw materials of the low alkali glass compositing under high temperature, followed by fiber form through Bushing's nozzle. KCC FIBER GLASS offers high strength level, does not burn in fire, and offers excellent chemical resistance. Accordingly, it is used as the reinforcing material for the FRP(Fiber Reinforced Plastics). Because of its excellent electric insulation, heat-resistance and durability, scope of its application is very wide as it is used for electric product, vehicle, parts for airplanes and other composite materials. In sum, it is a product with high utility value as the base material for new material development.

FIBER GLASS Characteristics

Mechanical characteristics : higher tensile strength compared to steel

Electronic characteristics : excellent electric insulation

Incombustibility : does not burn in fire and devoid of toxic material emission.

Measurement stability : low measurement transmutation following temperature and humidity level due to the low Thermal Expansion Coefficient

Chemical resistance : powerful chemical resistance

FIBER GLASS Type and Composition

Substance	E-Glass	C-Glass	S-Glass
Sio2	52 - 56	60 - 65	62 - 66
Al2O3	12 - 16	2 - 6	23 - 27
MgO	0 - 6	15 - 20	8 - 10
CaO	19 - 25	15 - 20
R2O	1.0	8 - 12	02 - 0.5
B2O3	5 - 10	2 - 7	-
Representative characteristics	Electric insulation	Chemical resistance	High tensile strength

E-GLASS was originally deveoped for use in the electric product field, but its usage has increased today,
presently used widely in FRP(Fiber Reinforced Plastics) and composite materials. Most of the FIBER SLASS is E-GLASS, and FIBER GLASS is also E-GLASS.

Values for E-glass' General Properties

Category	property value
Specific gravity	2.54 ~ 2.56
Tensile strength (N/㎠)	274,000 ~ 372,000
Elongation (%)	4.8
Linear Expansion Coefficient	5.0 × 10-6
Specific conductivity (㎈/℃)	0.19
Thermal conductivity (W/mK)	0.765
Transparency	transparent
Ultraviolet Ray Permeability	Non-permeability

Direct Roving Characteristics

KCC Direct Roving is a product whereby approximately 800~4,000 filaments are gathered to ORGANIC COMPOUNDS to form single stand (referred as 'Single End Roving' because of the characteristic). Depending on the process, it classifies into use for weaving, filament for winding and pultrusion. KCC product indicates product identification codes such as DR 235, DR 236 and so forth along with the tex of Roving.

KCC Direct Roving product for pultrusion is E-glass type Direct roving, designed for continuous process of pultrusion molded item that requires high strength into one direction for the product such as Tent pole, structural Beam, Cable tray, hot stick and so forth, and it has the following characteristics.

1. Sizing Agent and excellent Strand aggregation capability for the commercial viability with UNSATURATE polyester, EPOXY, vinyl ester resin
2. Minimization of fuzz occurrence during pultrusion process and Roving's excellent unwinding
3. Manifest of excellent FRP characteristics with rapid resin impregnation and elegant surface

※ Application : bathtub, water tank, tent pole, fishing rod, cable tray, sewage disposal tank etc

Product Type

Type	Product Name	Process
Direct Roving	DR 235-300, 600, 735, 1150, 2200, 2400, 4400TEX	Pultrusion, Filament Winding, Weaving in general
Direct Roving	DR 236-300, 600TEX	Pultrusion (applied mostly to core of optical cable)

Fiber properties

Classification	Linear density Tex (g/1000 m)	Glass Type	Size Agent	Moisture Regain %	LOI %	Filament Diameter (average ㎛)	Strength cN/Tex
DR 235	300	E-glass	Silane- Based	less than 0.1 %	0.35~0.65	13	over 40
	600, 900, 1150					17
	735					15
	1800, 3600					21
	2200, 2400					17, 24
	3600, 4400					23
	300			less than 0.06 %	0.40~0.70	13
DR 236	600			less than 0.06 %	0.40~0.70	17
Testing method	ISO 1889			ISO 3344	ISO 1887	ISO 1888	ISO 3341

■ FRP Properties (pultrusion)

	Glass content	Tensile		Product Reference	Resin Type
		Strength(25 ℃)	Modulus of Elasticity(25 ℃)
Unit	wt%	N (MPa)	N(MPa)
Measurement value	80	120(1176)	12,304.49(120,665)	DR 235-600Tex	UP
Measurement method	ASTM D 4963	ASTM D 2343

※ Note 1 : the above mentioned value measured by using our company's standard for compound mixing, and there may be difference in strength following resin and raw materials composition.

※ Note 2 : conditions for Pultrusion work are our company's testing standard, and there may be difference in strength depending on work and molding conditions.

■ FRP Properties (weaving)

Glass content

(%)

Flexural-

Tensile-

Compressive-

Inter laminar
sheer
strength

Absorption rate (mg

Strength

modulus

Strengt h

modulus