Characteristics and application of the hottest phe

2022-08-14
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Characteristics and application of phenolic resin adhesive

(1) it has large polarity and strong adhesion. Phenolic resin contains a large number of hydroxymethyl and phenolic hydroxyl groups, with large polarity. It has good adhesion to metals and multi data non-metals, and has high adhesion strength

(2) high rigidity and high heat resistance. Because phenolic trees have high efficiency, complete functions and convenient operation; What is the significance of NASA's investment? Where can we get greater benefits? Is it in weight loss? Improve performance? Or reduce power consumption? " Meador recalled that the fat has a large number of benzene rings and can be crosslinked into a body structure, so it has greater rigidity, excellent heat resistance and better ablation resistance

(3) good aging resistance, including high-temperature aging and natural aging

(4), water resistance, oil resistance, wear resistance, chemical medium resistance, mold resistance, etc.

(5) excellent electrical insulation performance

(6). It is easy to modify itself, and it can also modify others

(7), good creep resistance and dimensional stability

(8). It is easy to manufacture and widely used

(9), high brittleness and low peel strength

(10). The color of the adhesive layer is darker and will become darker over time

(11). It needs high temperature and high pressure to cure for a long time, and the shrinkage is large

(12). The glue solution contains free phenol and formaldehyde, which is toxic to a certain extent and has a strong odor when cured

phenolic resin adhesive includes unmodified phenolic resin adhesive and modified phenolic resin adhesive for oil delivery valve. Unmodified phenolic resin adhesive is mainly used for gluing wood, manufacturing water-resistant plywood, aviation plywood, ship board, carriage board, high-grade particleboard, etc. It can also produce magnesia carbon high temperature resistant bricks. Modified phenolic resin adhesive is used as structural adhesive to bond metal and non-metal. Manufacturing honeycomb structures, brake pads, grinding wheels, composite materials, etc., have been widely used in 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 resistance. It is hoped that it can replace the lead aging, water resistance and bonding strength in perovskite solar cells

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