Siberian scientists have invented chipboard made from rice husks and liquid glass

Specialists from Novosibirsk have presented an innovative composition of chipboards, in which traditional components are replaced by production waste.

The new development uses rice husks, sawdust, metallurgical waste and liquid sodium glass as a binder.

As reported by the Siberian Branch of the Russian Academy of Sciences, the technology was developed jointly with the Chinese company Kesyte from Dalian. The resulting boards have improved characteristics: increased strength, water resistance and fireproof properties.

The scientists noted that traditional chipboards, where calibrated chips are used as a filler and phenol-formaldehyde resin acts as a binder, have a number of disadvantages. Among them are relatively low strength compared to solid wood, limited moisture resistance and the release of harmful formaldehyde, which makes some types of boards unsuitable for furniture production.

Novosibirsk researchers have proposed a solution to these problems by creating an environmentally friendly material based on waste. The composition included rice husks, wood sawdust and metallurgical waste, such as silica dust from ferrosilicon production. Liquid sodium glass was used as a safe binding component.

Tests have shown that the new boards have high water resistance (swelling less than 3% per day), excellent strength characteristics and fire resistance. However, as the developers admitted, the cost of the environmentally friendly material turned out to be higher than traditional analogues due to the cost of silicate glue and the specifics of the production process.

Source: sib.fm