封装 塑料部件

在许多应用中,塑料部件都是先制造后封装。有一系列密封化合物、封装剂和灌封化合物可用于不同的应用:

柔性丙烯酸酯具有应力均衡效果,可保护塑料部件免受冲击和振动。另一方面,刚性灌封胶可以起到加固和承载重物的作用。

紫外线和 LED 固化丙烯酸基粘合剂因其固化时间短,可加快生产速度,从而降低生产成本而特别适用。但前提条件是塑料必须透明,且不能不透紫外线。对于有暗槽或阴影区的接缝,可使用双固化粘合剂系统。双固化粘合剂系统在初始紫外线固化后进行热固化。非透明基材可用热固化或室温固化的环氧树脂粘合剂粘合。

对于特别厚的粘合剂层,还可以使用双固化粘合剂。另外,也可以用波长较长的光源(约 405 纳米 LED)来固化厚层,这样可以固化几毫米厚的层。

蓝色紫外线湿气固化粘合剂用作电子元件的封装剂

下表列出了部分适用于封装的 Hoenle 粘合剂。如需更多产品和定制解决方案,请联系我们。如需下载技术数据表 (TDS),请点击粘合剂名称。

Adhesive Application Areas Viscosity [mPas] Base Curing Substrates Special Properties
- 7,000-15,000 mix (LVT, 25°C, Sp. 4/30 rpm) 2-part epoxy thermal, room temperature
  • Bonding thermoplastics and FR 4
  • High temperature resistance
  • short pot life
  • fast application
- 3,000-4,000 mix (LVT, 25°C, Sp. 4/30 rpm) 2-part epoxy thermal room temperature
  • Bonding glass, thermoplastics and FR 4
  • Very high adhesion to PC
  • resistant to moisture and chemicals
- 5,000-8,000 (LVT, 25 °C, Sp. 4/30 rpm) epoxy UV
  • Bonding thermoplastics
  • Bonding FR4 or ABS
  • suitable for bonding pretreated PET
  • Very high adhesion to most thermoplastics
  • low shrinkage
  • high temperature resistance
- 70-150 acrylate UV VIS
  • Bonding PC (Polycarbonate)
  • hard-PVC, PET, ABS, SAN
  • PMMA (Plexiglas®, acrylic glass)
  • Joining glass and plastics
  • Joining metals to plastics
  • Capillary flow
  • flexible and tear-proof adhesive
  • suitable for potting
  • dry surface
  • Bonding of flexible components;
  • Attaching components on PCBs
900-1,500 (LVT, 25°C, Sp. 3/30 rpm) acrylate UV VIS
  • Bonding PC /Makrolon, hard-PVC, PET, ABS, SAN, PMMA (Plexiglas®, acrylic glass)
  • Bonding glass, steel, stainless steel, aluminium, brass
  • Dry surface after curing,
  • biocompatible: certified to USP Class VI and ISO 10993-5 standards
- 700-1,000 acrylate UV VIS secondary heat cure
  • Bonding PC, PMMA (Plexiglas®, acrylic glass), hard-PVC, PET, ABS, SAN
  • Joining glass and plastics
  • Joining metals to plastics
  • Very high adhesion to many plastics
  • dry surface after curing
  • flexible and tear-proof
  • suitable for potting
  • Sealing electrical assemblies,
  • breathing masks
250-500 acrylate UV VIS
  • Bonding ABS, PMMA (Plexiglas®, acrylic glass), hard-PVC, PET, SAN, PC
  • Joining glass and plastics
  • Joining metals to plastics
  • Joining plastics with various substrates
  • Flexible,
  • well suited for bonding plastics with low UV translucence and permeable to visible light,
  • biocompatible: certified to USP Class VI standards
  • plastics /glass bonding
  • suitable for elastic bonding of large surfaces
30-100 acrylate UV VIS
  • Bonding PC (polycarbonate)
  • PVC, PMMA,
  • ABS, glass and metals
  • High resistance to alcohols and moisture
  • non-yellowing
  • very high adhesion to plastics, glass and metals
  • suitable for bonding large areas
  • certified according to USP Class VI
  • Bonding plastic parts
40-70 acrylate UV VIS
  • Bonding plastics such as
  • PC, PVC, ABS
  • Bonding glass and metals
  • Flexible
  • high elongation at break
  • perfect solution for bonding large surfaces
  • very high adhesion to plastics
  • glass and metals
  • Plastic bonding,
  • bonding containers
3,000-5,000 acrylate UV
  • Bonding hard-PVC, ABS, SAN, PUR, PC
  • Excellent adhesion to plastics, especially to PC and PMMA;
  • biocompatible: certified to USP Class VI standards
- 200-400 acrylate UV
  • Bonding PC (Polycarbonate) and
  • other plastic substrates
  • Fast curing
  • very well suited for automated production lines
  • yellow color
  • dry surface
- 700-1,200 acrylate UV
  • Bonding PC (Polycarbonate) and
  • other plastic substrates
  • Dry surface
  • fast curing of thick layers
  • yellow color
- 4,000-7,000 acrylate UV
  • Bonding PC (Polycarbonate) and
  • other plastic substrates
  • Yellow color
  • dry surface
  • fast curing of thick layers
- 15,000-25,000 acrylate UV VIS secondary heat cure
  • Bonding PMMA (Plexiglas®, acrylic glass), PC, PET, ABS, SAN, FR4, PBT, hard-PVC
  • Bonding plastics and metals
  • Acrylate-Hybrid
  • low thermal expansion
  • low shrinkage
  • impact resistant
  • dry surface
  • grey color
  • Potting
  • Sealing
  • Protection of sensitive components
19,000-32,000 (Rheometer, 25°C, 10s^-1) acrylate UV VIS
  • Bonding PMMA (Plexiglas®, acrylic glass), PC, PET, ABS, SAN, FR4, PBT, hard-PVC
  • Bonding plastics and metals
  • Acrylate hybrid
  • superior strength
  • low thermal expansion
  • impact resistant
  • low shrinkage
  • resistant to soldering stress
  • excellent flow properties
  • Encapsulation of electronic components
1,000-1,500 acrylate UV VIS
  • Bonding PC (Polycarbonate), PMMA
  • Bonding plastics to glass
  • Elastic
  • high peel strength
  • optically clear
  • very flexible
  • suitable for potting
- 10-100 acrylate UV VIS
  • Plastics and rubber bonding
  • suitable for bonding PMMA, PC, hard-PVC, PET, ABS, SAN, FR4, PBT in combination with glass and metals
  • Flexible
  • perfect solution for bonding large surfaces
  • high peel strength

*紫外线 = 320 – 390 纳米 可见光 = 405 纳米

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