+86-574-65355777
How to improve the quality and production technology of bakelite powder
Release time:2020-11-17 Click Volume:431Bakelite powder is a common new material, which has good application in many aspects, and there are many bakelite flour manufacturers. In order to survive in the industry better, how to improve the quality and production technology of bakelite flour in Zhejiang has become a problem that many manufacturers need to pay attention to.
In order to obtain stable process size and precision, the influence of dimension change on processing allowance of bakelite cage in oil immersion process is studied. The key points and difficulties of some processes are analyzed
Bakelite powder, also known as bakelite powder, has good insulation properties, and is used to manufacture electrical appliances and daily industrial products. It is mainly made of phenolic plastics filled with wood powder by pressing.
When formaldehyde / phenol (molar ratio) is less than 1, thermoplastic products can be obtained, which is called thermoplastic phenolic resin, namely linear phenolic resin. It does not contain further condensation groups, and can be cured by adding curing agent and heating. Such as hexamethylene tetramine as curing agent, curing temperature 150 ℃, mixed with fillers made of molding powder, commonly known as bakelite powder. When the molar ratio of formaldehyde to phenol is greater than 1, the first step resin, namely thermosetting phenolic resin, is obtained under the catalysis of alkali. It can be dissolved in organic solvents. The first stage resin contains hydroxymethyl which can be further polycondensated, so it can be cured without adding curing agent. The second stage resin, also known as semi soluble phenolic resin, is insoluble and insoluble, but can be swelling and softening.
The above is the introduction of bakelite powder. If you have any questions or problems, please contact and communicate with our customer service at any time.