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TWO-PART ADHESIVE COMPOSITION THAT UNDERGOES A VISUAL CHANGE WHEN CURED
TWO-PART ADHESIVE COMPOSITION THAT UNDERGOES A VISUAL CHANGE WHEN CURED
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机译:两部分粘合剂组合物在固化时经历视觉变化
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摘要
The present disclosure provides a method for bonding parts, comprising the following steps(a) Providing a two-component adhesive composition precursor, comprising Part (A) comprising at least one first dye and at least one epoxy curing agent;Part (B) at least one second dye different from first dye and at least one epoxy resin;(b) Mixing part (A) and part (B) of the two-component adhesive composition precursor to obtain an adhesive composition;(c) Applying the adhesive composition onto a first part;(d) Applying a second part onto the adhesive composition applied to the first part;(e) Perform a first curing step at a first temperature, wherein the adhesive composition undergoes a first colour change;Perform a second curing step at a second temperature higher than the first temperature, thereby fully curing the adhesive composition so as to obtain a structural adhesive bond between the first and second parts, wherein the adhesive composition undergoes a second colour change.
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