PBT Resin for Secondary Coating Materials Polybutylene Terephthalate Plastic Material PBT for Fiber Optic

• Material: Polybutylene Terephthalate/PBT
• Usage: General Plastics, Engineering Plastics, Specialty Plastics, Fiber Optic
• Plastic Properties After Heated: Thermoplastic Plastics
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: T-PBT002
• Plastic Forming Method: Extrusion
• Color: White
• Transport Package: Bag/Pallet
• Specification: 25kg/bag 900kg/bag
• Origin: China

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.

Type and Application

Type

Product name

Application blowing Tiny

T-PBT002

PBT resin used for optical fiber

Secondary Coating Materials Used for blowing Tiny Optical Fiber

 

Properties			Advantages					Description
Mechanical properties			High stability					Small shrinkage scale, small volume changing in using, good stability in forming
			High mechanical strength					Good modulus, good extension performance, high tensile strength, the lateral pressure of loose tube is higher than requirement ofstandard
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  optical  cable  more  longer  life  than requirement of standard
Chemical properties			Chemical resistance					PBT can tolerate most of polarity chemical reagent at room temperature. And PBT is not compatible with filling gel. at high temperatures and susceptible to erosion

Processing
Two sets of plastic equipment
Screw Diameter  ¢45~ ¢60        Draw ratio 25:1
Production speed    
200m/min~400m/min
FOR  ¢60 ,Production speed >400m/min
The recommended processing temperature:

Type	Extruder body 1				Extruder body 2		Extruder body 3		Extruder body 4			Extruder body 5			Flange			Extruder neck		Extruder head 1		Extruder head 2	Hot water		Warm water
T-PBT002	245				255		260		265			265			265			265		260		255	50		30

The recommended processing temperature FOR  ¢50 Production speed 200m/min~300m/min

Type		Extruder body 1				Extruder body 2		Extruder body 3		Extruder body 4			Flange			Extruder head 1			Extruder head 2			Hot water		Warm water
T-PBT002		240				245		250		250			250			245			245			40		30

Properties

Name

PBT

Type

T-PBT002

All parameters inspected is according to Standard: GB/T20186.1-2006   YD/T1118. 1-2001

No.

Inspected parameters

Unit

Standard requirement

Typical

Inspection method

1

Density

g /cm^3

1.25~1.35

1.31

GB/T1033-2008

2

Melting Index(250ºC,2160g )

g/10min

7.0~15.0

12.6

GB/T3682-2000

3

Moisture content

%

≤0.05

0.03

GB/T20186. 1-2006

4

Saturation

%

≤0.5

0.3

GB/T1034-2008

5

Tensile strength at yield

MPa

≥50

55. 1

GB/T1040. 1-2006

Elongation at yield

%

4.0~10

5.2

GB/T1040. 1-2006

Elongation at break

%

≥50

163

GB/T1040. 1-2006

tensile modulus ofelasticity

MPa

≥2100

2316

GB/T1040. 1-2006

6

Flexural mode

MPa

≥2200

2311

GB/T9341-2000

Bending strength

MPa

≥60

76.7

GB/T9341-2000

7

Melting point

ºC

210~240

218

DTA

8

Shore hardness

/

≥70

75

GB/T2411-2008

9

Izod impact strength 23ºC

KJ/m^2

≥5.0

9.4

GB/T1843-2008

Izod impact strength -40ºC

KJ/m^2

≥4.0

7.6

GB/T1843-2008

10

Coefficient of linear expansion    (23~ 80ºC)

10^-4K^- 1

≤1.5

1.44

GB/T1036- 1989

11

Coefficient of volume Resistance

Ω.cm

≥1×10^14

4.3×10^16

GB/T1410-2006

12

Heat distortion temp 1.8M pa

ºC

≥55

58

GB/T1634.2-2004

Heat distortion temp 0.45 M pa

ºC

≥170

174

GB/T1634.2-2004

13

thermal hydrolysis

Tensile strength at yield

MPa

≥50

54.8

GB/T1040. 1-2006

Elongation at break

0

≥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

0

≥50

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

Match

GB/T20186. 1-2006

Note: 1.The product should be dried and sealed package. It is recommended that it should be use hot air to avoid moisture before using. The Primary drying temperature should be 100ºC, The temperature in using should be controlled at 120ºC, Drying time should be more than 2 hours, For the broken bag or after opening which is absorbed moisture, It should be increased drying time . 2.According to the size requirements of Loose Tube, the process parameters should be adjusted controlled by optical fiber's surplus length. 3.The above results are obtained based on specific production location and specific time to get sample.

Packaging Storage And Transport
Package: Two package ways :
1. It is packed 900KG 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 120ºC.



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