聚四氟乙烯棒材
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PTFE Rod
【 特 征 Festures】
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聚四氟乙烯棒有二種。直徑4-9mm的棒選用分散聚合聚四氟乙烯樹脂經(jīng)糊膏擠壓加工制成；直徑10-50mm的棒選用懸浮聚四氟乙烯樹脂徑柱塞擠壓加工制成；直徑50mm以上的棒徑模壓加工制成。
在已知塑料中聚四氟乙烯具有最優(yōu)良的耐化學(xué)腐蝕性能與介電性能，不老化、不粘、在無負(fù)荷情況下能在-180%°C - +260°C溫度下使用，在已知固體材料中它具有最低摩擦系數(shù)。
There are two kinds of PTFE rods to offer . One is manufactured by paste extruding method in the diameter from 4 to 9mm and the other is made by ramertruding methruding method in the diameter from 10 to 150mm；Rods over diameter 150mm are manufactured by moulding.
PTFE is the most chemical-resistant plastic of all known plastics . It does not age.
PTFE has a wide range of practicalble temperature from -180℃～+250℃ and a wax-like surface to which anything hardly sticks.
PTFE has the lowest coefficient of friction of all know solid materials . It has the best electrical properties of all plastics.
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【 規(guī) 格 Specifications:】
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型號
TYPES
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直徑（mm）
Diameter(mm)
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長度（mm）
Length(mm)
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稱呼
Nomina
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允許公差
Tolerance
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稱呼
Nomina
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允許公差
T
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SFFBN
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4,5,6
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+0.48
0
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1000
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+5.0
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7,8,9
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+0.58
0
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SF×BN
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10,13,15
16,18
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+1.10
0
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1000
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+3.60
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20,25,30
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+1.30
0
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35,40,45
50
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+1.60
0
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55,60,65,70,75
80,85,90,100
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+2.00
0
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1000
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+2.50
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110,120,130
140,150
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+2.50
0
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180,200,250
270,300
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+3.0
0
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300
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+2.0
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【 主要技術(shù)指標(biāo) MAin properties】
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項(xiàng)目名稱
Properties
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單位
Unit
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指標(biāo)
Result
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表觀密度
Apparent density
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g/cm3
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2.10—2.30
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拉伸強(qiáng)度 ≥
Tensile stregth(min)
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MPa
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14.0
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斷裂伸長率 ≥
Ulimate elongation(min)
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%
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140
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注：當(dāng)棒直徑大于16mm時(shí)，僅測試表觀密度。
Note: When the diameter of rod is larger than 16mm, only test Apparent density.
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【 用 途 Application:】
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電絕緣零件，密封視墊，防粘材料。
Electrical insulation , seal, Antisticking materials.
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