新闻资讯

Application of fumed silica in pressure-sensitive flame retardant adhesives

The flame retardancy of pressure-sensitive flame retardant adhesive is usually in conflict with its three properties (peeling force, holding power, initial adhesion). In order to obtain a certain flame retardant properties and add more flame retardant fillers, will inevitably make the adhesive initial adhesion and peel force decreased; flame retardant fillers add a small amount is difficult to achieve satisfactory flame retardant properties. At the same time, the addition of flame-retardant fillers will lead to adhesives in the storage and use of the phenomenon of sedimentation, seriously affecting the normal use of adhesives.

2023-09-01

Application of fumed silica in epoxy adhesives

Epoxy resin adhesive is a class of engineering adhesive with very strong generality. Due to its advantages of good bonding performance, good functionality, cost-effective, easy bonding process, etc., it has been widely used in the fields of medical, aviation, shipping, electronics, home appliances, automobiles, instruments, power supply, high-speed railroad, communications, new energy and other industries. In recent years, with the continuous development of high technology and nanotechnology, the modification of epoxy resin is constantly deepening, epoxy system high-performance adhesive has become an important class of adhesives with excellent performance, many varieties and wide adaptability.

2023-09-01

Fumed silica is better, or precipitated silica is better? It turns out that the difference is so big

Silica is a general term for white amorphous powder silicic acid and silicate products, mainly referring to precipitated silica, fumed silica, ultrafine silica gel and aerogel, but also including powdered synthetic aluminum silicate and calcium silicate, etc.. Silica according to the production method is broadly divided into precipitated silica and fumed silica (scientific name: fumed silica).

2023-09-01