Copyright © 2014 Owens Corning. All Rights Reserved. Images © istockphoto.com

TYPE30® DIRECT ROVING: DELIVERING VIABLE POLYURETHANE PULTRUSION: A TECHNOLOGY STATUS OWENS CORNING BRYAN MINGES, PRODUCT MANAGER EPTA CONFERENCE MARCH 6, 2014

Copyright © 2014 Owens Corning. All Rights Reserved. Images © istockphoto.com, Paulo Manuel Furtado Pires / shutterstock.com

SUPPORTING PULTRUSION WORLDWIDE

A world leading producer of fiberglass Innovator in glass fiber solutions for 75 years 200+ researchers in 6 R&D centers Worldwide manufacturing of Type 30® direct roving

Yuhang, CN L’Ardoise, Fr

Rio Claro, B

Amarillo, TX

Mexico City, MX

Gous, RU

Taloja IN

Doudian, CN

WHY CHOOSE OWENS CORNING?

Inventor of Type 30® Single End Roving

with a long history of introducing innovative, robust products that meet stringent performance and quality requirements throughout the value chain.

Broad range of glass fiber products

offers customers more specialized combinations of polymer/resin matrix and reinforcement options. Globally available products manufactured in

multiple facilities providing unrivaled supply redundancy. Local technical support combined with global

account coordination provides customers with outstanding response times and vital market intelligence.

Copyright © 2014 Owens Corning. All Rights Reserved. Images © istockphoto.com

POLYURETHANE IN THE PULTRUSION MARKET

PERSPECTIVE ON THE PULTRUSION MARKET

Polyurethane’s Place in Pultrusion • Owens Corning has provided key global

innovations critical to market growth

• There is significant opportunity for application

development in traditional resin systems, but

also in the adoption of polyurethane

• We expect global growth in polyurethane of

15% CAGR in the near term

• Critical to this growth is the support of existing

pultruders and new entrants into the market

KEY TRENDS AND DRIVERS IN POLYURETHANE USE

• Reliable and fast processing

• Cost effective performance

• Reduced material cost

• Product customization/design

flexibility

• Improved impact strength

• Thinner wall thickness

• Higher specific strength and transverse

properties

• Lower water absorption

• Better abrasion resistance

• Improved fastening strength

• Reduced emissions/VOCs (less styrene)

* Data from OC internal analysis

Window profiles

• Light weight

• High strength

• Abrasion resistance

• Corrosion resistance

• Transverse properties

to reduce thickness

• Reduced reliance on

mat reinforcements

Wind blade components

• Reduced production time

• Excellent pull out strength

• Fatigue resistance

• Material savings

NEW AND EMERGING POLYURETHANE APPLICATIONS

Structural profiles

• Flexural strength

• Compressive strength

• Interlaminate shear

• In-plane shear

Retaining walls

• High abrasion resistance

• Impact strength

• Thinner walls due to higher mechanicals

• Enhanced aesthetics

NEW AND EMERGING POLYURETHANE APPLICATIONS

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REINFORCEMENT SOLUTIONS IN POLYURETHANE PULTRUSION

• Improved mechanical performance in tensile, impact and transverse strength

• Fast impregnation

• Excellent strand opening

• Minimal color variation/consistent pigmentation

• Complete run-out

• Decreased resin use/higher FVF

• High and low tex availability

• Great visual appearance

• Multi-resin compatibility (PU, UPE, VE, EP)

• Corrosion resistance

• Process consistency in climate fluctuations

• Excellent electrical properties

• Reliable supply/global manufacturing

• Consistent quality

CHALLENGE TO GLASS FIBER REINFORCEMENTS

IMPACT OF RESIN/REINFORCEMENT BOND

Flexural strength (ksi) of reinforced composites

1,3001,500

+15%

PU good bonding PU bad bonding

* Based on internal OC testing at 80% FWF

Good bonding

Poor bonding

REINFORCEMENT PERFORMANCE

60

80

100

120

140

160

180

200

220 Flexural strength in UPE and PU – initial results and at 72 hour boil

PU

PU 72 hr

UPE

UPE 72 hr

Owens Corning PulStrand™

3000

Competitor reference #1

Competitor reference #2

* Based on internal OC testing at 79% FWF

Stress-Rupture of Composite Rods in AIR

10

100

1 10 100 1000 10000 100000 1000000Time to Failure (hours)

Lo

ad

(%

ult

ima

te)

45%

50 years

Advantex glass

Traditional E-glass

Stress-Rupture of Composite Rods in Normal Acids (HCl - H2SO4)

1

10

100

1 10 100 1000 10000 100000 1000000Time to Failure (hours)

Lo

ad (

% u

ltim

ate

)

50 years

Advantex Glass

Traditional E-Glass

12.1%

0.9%

r2 = 0.97 - Advr2 = 0.96 Trad E

.

73 hrs

* Data from OC internal analysis

GLASS FORMULATION IMPACT ON CORROSION RESISTANCE

DELIVERING A COMPREHENSIVE RANGE OF REINFORCEMENT SOLUTIONS FOR PULTRUSION

Single-End Rovings Unifilo®/ Continuous Filament Mats Non-wovens

Complexes, Fabrics, Stitched and Needled

Mats Bulky Rovings

Single-End rovings are generally used in all pultruded products,

usually as principal reinforcement

Provide axial strength and stiffness High reinforcement content Available in a range of tex values Specifically sized to different resin systems for optimal performance

Unifilo® mats are also widely used in pultrusion process for better

transverse mechanical properties

High mat tensile strength, also at elevated temperatures when wet with resin Low density Easy processing: both faces well bound and easy to splice Good compatibility with UP, VE, Epoxy and acrylic resins Available in a full range of weights and widths

Veils are designed to create a high quality surface layer on the

pultruded part

Small bundle size to give uniform and veil-like appearance Easy wet out in most pultrusion resins

Fabrics, complexes and mats – with sufficient tensile strength for

processing through a die, and which can be impregnated with

resin under operating conditions – may all be used

Being filamentized to a greater or lesser extent, producing loops or

filaments misaligned from the axial direction

Provides some reinforcement in the transverse direction to improve shear properties Produces a scouring action to clean the die and prevent lost edges in tight radii Easy to wet out