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Impregnation of Fibers with Thermoplastics

Long Fiber Thermoplastics Joseph Yu

Business Director Fiber Glass –Asia Pacific

Outlook
 Introduction
 Market development and drivers  LFT processes and resins used  Reinforcements  Importance of total package formulation

 Future and trends (growth, PBT, PE for pipe, etc. balance G vs. D -LFT)

 A global supplier of paints,coatings, chemicals, optical products,

specialty materials, glass and fiber glass.

 A company founded in 1883 with more than 150 production facilities in

more than 60 countries.

 Traded on the New York Stock Exchange with sales in 2010 of $14

Billion.

 Active in initiatives to reduce energy use and promote environmental

sustainability and is committed to reduce its total energyuse by 25% from 2006 to 2016 and its total GHG emissions by 10%.

PPG Confidential: This document may contain confidential and/or privileged material. Review, retransmission, dissemination or other use of this information by persons or entities other than the intended recipient is prohibited.

Aircraft Products 航空产品 Aerospace Coatings and Sealants 航天涂料与密封材料 Architectural Coatings 建筑涂料Industrial Coatings 工业涂料

Flat Glass 平板玻璃 Specialty Chemicals : Optical Products 光学产品 Fiber Glass 玻璃纤维电子材料 Packaging Coatings 包装涂料

Automotive Glass 汽车玻璃

Automotive Replacement Glass 汽车玻璃售后服务
Automotive Coatings 汽车涂料 Automotive Refinish 汽车涂料售后服务 Specialty Chemicals : Silicas 特殊化学材料:硅土

Specialty Chemicals : Fine Chemicals 精细化学原料

Chlor Alkali and Derivatives 氯碱化合物
Fiber Glass 玻璃纤维复合材料 PPG Confidential: This document may contain confidential and/or privileged material. Review, retransmission, dissemination or other use of this information by persons or entities other than the intended recipient is prohibited.

Joseph Yu Business Director Fiber Glass Asia Pacific

PPG Confidential: This document may contain confidential and/or privileged material. Review, retransmission,dissemination or other use of this information by persons or entities other than the intended recipient is prohibited.

Outlook
 Introduction
 Market development and drivers  LFT processes and resins used  Reinforcements  Importance of total package formulation

 Future and trends (growth, PBT, PE for pipe, etc. balance G vs. D -LFT)

What is a Long Fiber Thermoplastic Composite?Any Thermoplastic Compound where:
For the Molded part
 70% of the theoretical Flexural Strength is

achieved  Weighted average fiber length is above 2.1mm in the final part

Drivers for LFT
CLFT

Glass Fabric

GMT Neat Resin Short Glass Compounds GLFT DLFT

Critical Fiber length is >2 mm for improved properties vs. short glass compounds
Properties and Cost of ThermoplasticComposites rise with longer fiber length

There are Three Main Forms of LFT
 Granulate Long Fiber Thermoplastics

(GLFT)
 Direct Long Fiber Thermoplastics

(DLFT)
 Continuous Long Fiber Thermoplastics

(CLFT)

What is a Granular Long Fibre Thermoplastic (GLFT)?

Short Glass Pellet Glass Length 1mm Pellet Length 3 mm

Long Glass Pellet Length 9 to 15 mm 3 mm diameter 30 to 70% byweight Fiberglass Fiberglass length = Pellet Length

GLFT Pellet Pultrusion Process

GLFT versus Wire Coated Granulate
 GLFT is defined as a fully impregnated product where 95%+ of the individual

fibers are covered with the engineering resin. coated with the engineering resin.

 Wire Coated Granulate is defined as a product where the bundle of fibers is

 Wire Coated products exhibitlower mechanical properties and may exhibit

surface imperfections and fiber show through.
because of the incomplete fiber wet out.

 Wire Coated products require higher shear conditions during Injection Molding

 Wire Coated parts typically offer reduced cost but

at a reduced performance than GLFT parts.

DLFT: Injection and Compression
Injection Compression

Resin & Glass in...
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