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GL3018LN with excellent performance used for Optical Fiber

Short Description:

PBT is very important secondary coating materials for Optical Fiber, It has excellent performance in mechanical /thermal /hydrolytic / chemical resistance properties and easy to be mechanical processed.


Product Detail

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Type and application

 Type  Product  Application and advantages
GL3018LN PBT resin used for optical fiber Secondary Coating Materials Used for blowing Tiny Optical Fiber

Product description

PBT is very important secondary coating materials for Optical Fiber, It has excellent performance in mechanical /thermal /hydrolytic / chemical resistance properties and easy to be mechanical processed.

Properties Advantages  Description
Mechanical properties High stability Small shrinkage scale, small volumechanging in using, good stability in forming.
High mechanical strength Good modulus, good extension performance,high tensile strength, the lateral pressure ofloose tube is higher than requirement of standard .
Thermal properties High distortion temperature Whether in the case of high load or low load ,the performance of distortion is excellent
Hydrolytic properties Anti-hydrolysis High performance of anti-hydrolysis make opticalcable more longer life than requirement of standard.
Chemical properties Chemical resistance PBT can tolerate most of polarity chemical reagentat room temperature. And PBT is not compatiblewith  filling gel. at high temperatures andsusceptible to erosion.

Processing technology    The recommended processing temperature:

Zone Extruderbody 1 Extruderbody 2 Extruderbody 3 Extruderbody 4 Extruderbody 5 Flange Extruderneck Extruderhead 1 Extruderhead 2 Hotwater Warmwater
 /℃ 250 255 260 265 265 265 265 255 255 35 30

Storage and transport

Package: Two package ways, : 1. It is packed 900/1000KG per bag with the inner lining of aluminum foil material, outer lining of PE woven material. 2. It is packed 25KG per bag with inner lining of aluminum foil material , outer lining of kraft paper material.

Transportation: It should not be exposed to get wet or humidity during transportation, and keep it dry, clean, complete and pollution-free. Storage: It is stored in a clean, cool, dry and ventilated warehouse away from the source of fire. If the product is found to be damped in rainy reason or with high moisture in the air, It can be used one hour later after it is dried at the temperature of 120℃ .

GL3018LN properties

No.  Inspected properties Unit Standard requirement Typical Inspection method
1 Density g/cm3 1.25 ~ 1.35 1.31 GB/T1033-2008
2 Melting Index(250℃、2160g) g/10min 7.0 ~ 15.0 12.5 GB/T3682-2000
3 Moisture content % ≤0.05 0.03 GB/T20186.1-2006
4 Water Absorption % ≤0.5 0.3 GB/T1034-2008
 5 Tensile strength at yield  MPa  ≥50  55.1  GB/T1040.2-2006
Elongation at yield % 4.0 ~ 10 5.2 GB/T1040.2-2006
Elongation at break  %  ≥50  163  GB/T1040.2-2006
tensile modulus of elasticity  MPa  ≥2100  2316  GB/T1040.2-2006
 6 Flexural modulous  MPa  ≥2200  2311  GB/T9341-2000
Bending strength MPa ≥60 76.7 GB/T9341-2000
7 Melting point 210 ~ 240  218 DTA 法
8 Shore hardness  -  ≥70  75  GB/T2411-2008
 9 Izod impact 23℃ KJ/m2  ≥5.0  9.4  GB/T1843-2008
Izod impact -40℃ KJ/m2 ≥4.0 7.6 GB/T1843-2008
10 Coefficient of linear expansion(23 ~ 80℃) 10-4K-1  ≤1.5  1.44  GB/T1036-1989
11 Coefficient of volume resistance  Ω.cm ≥1×1014 4.3×1016  GB/T1410-2006
12 Heat distortion temp 1.8M pa  ≥55  58  GB/T1634.2-2004
Heat distortion temp 0.45 M pa  ≥170  174  GB/T1634.2-2004
13 thermal hydrolysis
Tensile strength at yield MPa ≥50 54.8 GB/T1040.1-2006
Elongation at break % ≥10 48 GB/T1040.1-2006
14 Compatibility between material and filling compounds
Tensile strength at yield  MPa  ≥50  54.7  GB/T1040.1-2006
Elongation at break % ≥100 148 GB/T1040.1-2006
15 Loose tube anti side pressure N ≥800 983 GB/T228-2002
16 Appearance GB/T20186.1-2006 3.1 According to GB/T20186.1-2006

Note: 1.The product should be dried and sealed package. It is recommended to use hot air to avoid moisture before using. temperature controlled within (80~90)℃;

Our products are made from the primary raw materials.Meanwhile, during the production, we constantly make the technology innovation and product optimization. In order to provide the better products and service for our customers, we make the strict management and control for the production process. Our product quality have received high praise from our customers. We are looking forward to establish a long business relationship with you.

Please let us know if you are interested in our products timely. We shall be prompt to give you a feedback as soon as we receive your detailed specifications. Our experienced R&D engineers will try best to meet your requirements. We look forward to receiving your inquiry and hope to have the opportunity to work with you in the future. Welcome to visit our company at your free time.

We have established strong and long-term cooperative relationships with many overseas customers. We welcome domestic and foreign customers to contact us through online or offline. Besides the high-quality products, we also have the professional after-sales service team to provide equipment selection, product use and technical advice. We long to have a chance to provide the cost-effective products and service for you.


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