Method for manufacturing phase-change heat absorption swelling fire-retardant wood and swelling fire-retardant wood

Abstract

The invention discloses a method for manufacturing phase-change heat absorption swelling fire-retardant wood and the swelling fire-retardant wood. The manufacturing method includes the following steps that the wood is processed and manufactured according to the dimensions required, so that a solid wood component is obtained; the solid wood component is subjected to degreasing and duct dredging pretreatment, and accordingly the pretreated solid wood component can be obtained; the pretreated solid wood component is put into phase-change heat absorption swelling fire-retardant steeping liquor for conducting vacuum pressure impregnation treatment, and then drying is performed, so that the solid wood component filled with a phase-change heat absorption swelling fire-retardant material is obtained; the solid wood component filled with the phase-change heat absorption swelling fire-retardant material is subjected to sanding shaping and surface closing protective treatment, and accordingly the phase-change heat absorption swelling fire-retardant wood is obtained. The swelling fire-retardant wood obtained through the manufacturing method achieves phase-change heat absorption in the heating process of the wood and forms a swelling foam carbon layer under the fire condition, the change of fires can be lowered and fire losses are reduced.

Description

technical field [0001] The invention relates to the technical field of wood modification and manufacture of flame-retardant wood, in particular to a manufacturing method of phase-transition heat-absorbing expanded flame-retardant wood and the expanded flame-retardant wood. Background technique [0002] Flame retardant and fire prevention are important issues related to the safety of people's lives and properties. Among various disasters, fire is one of the main disasters that most frequently and commonly threaten public safety and social development. According to statistics from the Fire Department of the Ministry of Public Security, in 2015, a total of 338,000 fires were reported across the country, resulting in 1,742 deaths, 1,112 injuries, and direct property losses of 3.95 billion yuan. On May 25, 2015, a particularly serious fire accident occurred in Kangyuan Senior Apartment, Lushan County, Pingdingshan City, Henan Province, resulting in 39 deaths and 6 injuries. The ...

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Problems solved by technology

[0012] Although the above research work has achieved some gratifying results, the existing flame-retardant wood cannot suppress the rapid rise in temperature in the medium and low temperature range, and the fire prevention efficiency is not high. Protection of phase change endothermic expansion fire retardant wood is very necessary

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