GMT

聚酰胺或聚丙烯

开发这些玻纤毡增强PA和PP面板作为铝、钢和胶合板的轻质替代品。GMT材料由专有工艺中制造的长纤维和/或环形玻纤毡组成,并在随后的工艺流程中采用聚合物浸染。

GMT成功的关键在于这种长纤维技术:未增强和短纤维增强的热塑性塑料在低温下变脆并可能在冲击时破碎,GMT则在断裂前表现出极高的能量吸收。

GMT因其卓越的抗冲击性和良好的碰撞性能,经常用于汽车行业,在该行业中,其复杂的3D半结构部件已工业规模化。由于GMT的相对密度低,即使在低温下也有很好的硬度和刚度,耐湿和耐化学品,经久耐用,且易于回收,因此GMT作为许多工业材料的替代品而受到广泛青睐。

GMT板的常规性能
Criteria
Thickness availability (in panel form)
GMT Composites
2.5 - 5.4 mm (0.098 - 0.213 in.)
Criteria
Thickness tolerance (In 8-ft panel form)
GMT Composites
'+/- 0.2 mm (0.008 in.)
Criteria
Width tolerance (In 8-ft panel form)
GMT Composites
'+/- 1.0 mm (0.04 in.)
Criteria
Length tolerance (In 8-ft panel form)
GMT Composites
'+/- 5.0 mm (0.197 in.)
Criteria
Standard & custom sizes available
GMT Composites
Max. width 1.4 m (4.59 ft)
Criteria
Forming process (if molded part desired)
GMT Composites
Compression molding
Criteria
Custom colors
GMT Composites
Yes
Criteria
Translucent possible
GMT Composites
Yes
Criteria
Water resistant
GMT Composites
Yes
Criteria
Impact resistance (failure mode)
GMT Composites
Very good (ductile; will not crack or splinter)
Criteria
Resistance to rot, corrosion, mildew
GMT Composites
Excellent
Criteria GMT Composites
Thickness availability (in panel form) 2.5 - 5.4 mm (0.098 - 0.213 in.)
Thickness tolerance (In 8-ft panel form) '+/- 0.2 mm (0.008 in.)
Width tolerance (In 8-ft panel form) '+/- 1.0 mm (0.04 in.)
Length tolerance (In 8-ft panel form) '+/- 5.0 mm (0.197 in.)
Standard & custom sizes available Max. width 1.4 m (4.59 ft)
Forming process (if molded part desired) Compression molding
Custom colors Yes
Translucent possible Yes
Water resistant Yes
Impact resistance (failure mode) Very good (ductile; will not crack or splinter)
Resistance to rot, corrosion, mildew Excellent
GMT板的机械性能
Criteria
Tensile strength MD*
Test Methods
ISO 527 / PA_098
Values
45 - 140 MPa
Criteria
Tensile modulus MD*
Test Methods
ISO 527 / PA_098
Values
3300 - 8300 MPa
Criteria
Elongation at break MD*
Test Methods
ISO 527 / PA_098
Values
2.0 - 2.7%
Criteria
Impact strength MD* (Charpy 4.0 mm)
Test Methods
ISO 179-12fn / PA_097
Values
40 - 120 kJ/m2
Criteria Test Methods Values
Tensile strength MD* ISO 527 / PA_098 45 - 140 MPa
Tensile modulus MD* ISO 527 / PA_098 3300 - 8300 MPa
Elongation at break MD* ISO 527 / PA_098 2.0 - 2.7%
Impact strength MD* (Charpy 4.0 mm) ISO 179-12fn / PA_097 40 - 120 kJ/m2
*MD = 轴向
GMT选项
  • 任意或环形玻璃纤维
  • 矿物质填充
  • 彩色
  • 抗紫外线