JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 53

intermediate products

Efficient prepreg processing
with speciality papers
Hockey sticks and skis are not the products that leading global
papermaker Sappi is usually associated with. However, Sappi's
speciality paper Algro® Sol was also developed to support the
manufacture of these sporting goods items along with other
products in the expanding prepreg market. In addition, the company has increased its production capacity in order to meet the
growing market demand for this grade.

A

ccording to management consulting and market research firm Lucintel, the timing of Sappi's focus
on this market segment could not be better. The firm's competitive analysis of the
global prepreg (pre-impregnated fibres)
market and usage, as reported in Global
Prepreg Market 2013-2018: Trend, Forecast and Opportunity Analysis, projected
robust market growth between 2013 and
2018. This market segment is predicted to
reach $6.1 billion worldwide by 2018.
The segment's growth was largely attributed to the rising costs of raw materials,
but the study also pointed to high growth
opportunities for applications using
prepreg materials in the aerospace, automotive, and civil engineering industries.
Growth opportunities are also aligned
with population expansion, resulting in
a growing number of users for prepregbased items. In addition, new materials
using pre-impregnated fibres are coming
onto the market, and this will result in a
wider range of end-user products.
Sappi is just at the beginning of a large
market opportunity. The company
does not yet know how big exactly the
market will be, but it is positioning itself
to address what is believed to be a fairly

significant opportunity. This is why Sappi
developed the Algro Sol paper and is
committed to offering a productive and
efficient solution. This paper was specially formulated to deliver quick release
properties for the careful handling and
transportation of prepreg materials.

The role of paper
in prepreg production
Prepregs are pre-impregnated fibres.
The fibres can be glass or carbon and are
generally formed into mats. The fibre mats
are then impregnated with a resin sizing to
produce an integrated substrate. The mats
can be formed with heat to make them
flexible for further processing. Special
process paper is applied to both sides to
safely transport and store the pre-impregnated fibre mats. This process paper has to
be anti-adhesive on both sides, which is
generally achieved with a silicon coating.
The siliconised process paper guarantees
the ability to easily remove the resinsized fibre mats from the process paper.
The prepreg mats are rolled up with the
siliconised process paper and can later be
unrolled without being damaged since the
silicon on the respective paper sides has
differential release characteristics, meaning the process paper will not stick to
itself and is easily removed from the mats
without damaging them.

By
Gunnar Sieber
Product GrouP ManaGer releaSe liner
SaPPi euroPe

Easy and fast prepreg processing
Algro Sol is an ideal siliconised process
paper or protective carrier for a fibre mat
comprised of glass or carbon impregnated
with resin. Once the mats are safely transported to the manufacturing location,
the resin is then moulded into the final
product.
To ensure delivery without damage and
easy release of the resin mat from the
siliconised process paper, coated kraft
paper with a reverse side functional coating is used as an effective and protective
substrate. A typical CCK (clay-coated
kraft) base paper is constructed as shown
in figure 1 below.

Fig. 1: Typical construction of Algro Sol papers

No104 April - May 2016 / jec

composites magazine

53



Table of Contents for the Digital Edition of JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016

Cover
Edito
Point of view: Thailand smiles at composites
Contents
COMPANY & BUSINESS
Agenda of Events
APPLICATIONS
Cycle
Multisectorial
Music
MARKET
Trend
Carbon
SPECIAL JEC AMERICAS 2016
Conferences
Awards
Oil & Gas
Redevelopment
Laboratory
RESEARCH & DEVELOPMENT
Self healing
Fibre placement
Microwave
TECHNOLOGY & INNOVATIONS
LFT
Intermediate products
Multimaterial
Manufacturing
Process
Index
In the world
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - Cover
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 2
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - Edito
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - Point of view: Thailand smiles at composites
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 5
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - Contents
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 7
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - COMPANY & BUSINESS
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 9
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - Agenda of Events
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - Ad1
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - Ad2
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 11
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - Cycle
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 13
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - Multisectorial
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 15
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - Music
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 17
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - Trend
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 19
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 20
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 21
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - Carbon
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 23
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 24
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 25
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - Conferences
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 27
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 28
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - Awards
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 30
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 31
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 32
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 33
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - Oil & Gas
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 35
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - Redevelopment
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 37
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - Laboratory
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 39
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 40
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - Self healing
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 42
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 43
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - Fibre placement
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 45
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 46
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - Microwave
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 48
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 49
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 50
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - LFT
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 52
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - Intermediate products
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 54
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - Multimaterial
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 56
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 57
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 58
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - Manufacturing
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 60
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - Process
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 62
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 63
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 64
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - Index
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - In the world
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 67
JEC COMPOSITES MAGAZINE - Issue #104 - April/May 2016 - 68
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