(1), large polarity, strong adhesive force, phenolic resin contains a large number of hydroxymethyl and phenolic hydroxyl, polarity is greater, has good adhesive properties for metal and multi-data non-metal bonding strength is high.
(2) High rigidity and high heat resistance Since the phenolic resin has a large amount of benzene rings and crosslinks into a bulk structure, it has a large rigidity and excellent heat resistance and good ablation resistance.
(3) Good aging resistance, including high temperature aging and natural aging
(4) Water resistance, oil resistance, wear resistance, chemical resistance, mold resistance, etc.
(5) Excellent electrical insulation.
(6) It is easily modified and can be modified.
(7), creep resistance, good dimensional stability.
(8) It is easy to manufacture and widely used.
(9) High brittleness and low peel strength.
(10) The adhesive layer has a darker color and will darken over time.
(11), need high temperature and high pressure curing for a long time, the shrinkage rate is large.
(12) The glue solution contains free phenol and formaldehyde, which has certain toxicity and has a large odor when cured.
Phenolic resin adhesives include unmodified phenolic resin adhesives and modified phenolic resin adhesives. Unmodified phenolic adhesives are mainly used in glued wood to make water-resistant plywood, aeronautical plywood, shipboard, carriage panels, and advanced particle board. Can also produce magnesium carbon high temperature bricks. Modified phenolic resin adhesives are used as structural adhesives to bond metals and non-metals. The manufacture of honeycomb structures, brake pads, grinding wheels, composite materials, etc. has been widely used in the automotive, tractor, motorcycle, aviation, aerospace, machinery, military, shipbuilding and other industrial sectors. It can also be used for the modification of other adhesives to improve the aging resistance, water resistance and adhesive strength.
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