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Master Bond推出导热型有机硅胶粘剂

来源:specialchem2021年04月20日

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  Master Bond launches Master Bond MasterSil 153AO, an addition cured two-part silicone adhesive with a self-priming property.
  
  The new adhesive has a high-tensile lap shear strength, especially for a silicone. The system is thermally conductive and electrically insulating.
  
  Electrically Insulating Adhesive
  
  “The key feature of Master Bond MasterSil 153AO is that it provides the ability to minimize stress, with no compromise on strength. Although it is not considered a structural adhesive, it provides a truly remarkable combination of flexibility and strength that other silicones do not provide”, said Rohit Ramnath, senior product engineer.
  
  This silicone adhesive product has an elongation between 100-120%, and a tensile lap shear strength of 700-800 psi. It provides a thermal conductivity of 0.93-1.08 W/(m•K), a volume resistivity of more than 1014 ohm-cm, a coefficient of thermal expansion of 150-180 x 10-6 in/in/°C, and hardness of 65-75 Shore A. It is serviceable over the temperature range of -65°F to +400°F.
  
  With an easy-to-use mix ratio of 1 to 1 by weight, Master Bond MasterSil 153AO cures with the addition of moderate amounts of heat. For example, optimal cure schedule is overnight at room temperature followed by 2-4 hours at 135°F-185°F. Upon mixing, it retains its smooth paste consistency and minimal flow. It has a long working life of 4 to 6 hours for a 100-gram mass at 75°F.
  
  The adhesive compound bonds well to a variety of substrates including metals, glass, ceramics, many plastics and silicone rubbers. It is available for use in kits, with sizes ranging from half pint, pint, quart to gallons. It is white in color. Master Bond MasterSil 153AO is generically low outgassing, contains no solvents, has a low linear shrinkage upon curing and is RoHS compliant.
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