Preparing method of flame-retardant intelligent compact bookshelf

Abstract

The invention relates to a preparing method of a flame-retardant intelligent compact bookshelf. The method includes the step that the flame-retardant intelligent compact bookshelf is made of flame-retardant phenolic foam plastic, and the phenolic foam plastic is prepared by foaming the composition containing barium phenolic resin, surfactant, a foaming agent, a curing agent and flame retardance.

Description

technical field

[0001] The invention relates to a dense shelf device, in particular to a method for preparing a flame-retardant intelligent dense bookshelf. Background technique

[0002] Shelves, also known as dense cabinets, are a kind of intensive file installation. According to different operation methods, they can be divided into manual dense shelves, electric dense shelves and electronic intelligent dense bookshelves. Among them, electronic intelligent dense bookshelves have the most market share. The prospect is also in line with the trend of technological development. However, because the books contained in the dense bookshelves are often flammable items, there are certain requirements for the flame retardancy of the dense bookshelves. Contents of the invention

[0003] In order to solve the above problems, the present invention provides a method for preparing a flame-retardant intelligent dense bookshelf, which may include:

[0004] The barium phenolic resin is p...

Examples

Embodiment 1

[0013] Synthesis of Barium Phenolic Resin

[0014] The barium phenolic resin is prepared from phenol and formaldehyde in the presence of a barium hydroxide catalyst. The preparation conditions include: the reaction temperature is 70° C., the weight ratio of formaldehyde / phenol is 2 / 1, and the amount of catalyst used is 1% of the total weight of formaldehyde and phenol. 5% by weight and the reaction time is 2h, the weight of formaldehyde is 2 kg.

[0015] 1. Turn on the constant temperature bath furnace and set it at 55°C, and melt the phenol.

[0016] 2. Weigh the measured amount of phenol, pour it into a three-neck flask installed in a constant temperature bath furnace, and stir for 10 minutes.

[0017] 3. Weigh the measured amount of barium hydroxide, add it into a three-necked flask filled with phenol, and stir for 20 minutes.

[0018] 4. Weigh the measured formaldehyde solution, drop it into the three-necked bottle with a dropper, and install a condenser on the three-nec...

Embodiment 2

[0029] The preparation of embodiment 2 flame-retardant phenolic foam

[0030] The flame retardant was added in the same manner as in Example 1, except that the flame retardant was added. The flame retardant has the following structural formula:

[0031]

[0032] And relative to the total weight of the composition, the added amount of the flame retardant is 10% by weight.

[0033] The basic properties of the samples of Example 1 and Example 2 were tested according to the following table. Take the average value of 5 measurements.

[0034]

[0035] As a result, the limiting oxygen index of the phenolic resin foam prepared in Example 2 has a good flame-retardant effect, and its LOI is 79% on average, and the thermal conductivity of the obtained foam product is 0.02835-0.03154W / m. Mpa, bulk density is 65-90kg / m 3 . However, for the phenolic resin foam of Example 1 without adding a flame retardant, its LOI is 12% on average. This shows that the addition of flame retardan...

technical field

[0001] The invention relates to a dense shelf device, in particular to a method for preparing a flame-retardant intelligent dense bookshelf. Background technique

[0002] Shelves, also known as dense cabinets, are a kind of intensive file installation. According to different operation methods, they can be divided into manual dense shelves, electric dense shelves and electronic intelligent dense bookshelves. Among them, electronic intelligent dense bookshelves have the most market share. The prospect is also in line with the trend of technological development. However, because the books contained in the dense bookshelves are often flammable items, there are certain requirements for the flame retardancy of the dense bookshelves. Contents of the invention

[0003] In order to solve the above problems, the present invention provides a method for preparing a flame-retardant intelligent dense bookshelf, which may include:

[0004] The barium phenolic resin is p...

Examples

Embodiment 1

[0013] Synthesis of Barium Phenolic Resin

[0014] The barium phenolic resin is prepared from phenol and formaldehyde in the presence of a barium hydroxide catalyst. The preparation conditions include: the reaction temperature is 70° C., the weight ratio of formaldehyde / phenol is 2 / 1, and the amount of catalyst used is 1% of the total weight of formaldehyde and phenol. 5% by weight and the reaction time is 2h, the weight of formaldehyde is 2 kg.

[0015] 1. Turn on the constant temperature bath furnace and set it at 55°C, and melt the phenol.

[0016] 2. Weigh the measured amount of phenol, pour it into a three-neck flask installed in a constant temperature bath furnace, and stir for 10 minutes.

[0017] 3. Weigh the measured amount of barium hydroxide, add it into a three-necked flask filled with phenol, and stir for 20 minutes.

[0018] 4. Weigh the measured formaldehyde solution, drop it into the three-necked bottle with a dropper, and install a condenser on the three-nec...

Embodiment 2

[0029] The preparation of embodiment 2 flame-retardant phenolic foam

[0030] The flame retardant was added in the same manner as in Example 1, except that the flame retardant was added. The flame retardant has the following structural formula:

[0031]

[0032] And relative to the total weight of the composition, the added amount of the flame retardant is 10% by weight.

[0033] The basic properties of the samples of Example 1 and Example 2 were tested according to the following table. Take the average value of 5 measurements.

[0034]

[0035] As a result, the limiting oxygen index of the phenolic resin foam prepared in Example 2 has a good flame-retardant effect, and its LOI is 79% on average, and the thermal conductivity of the obtained foam product is 0.02835-0.03154W / m. Mpa, bulk density is 65-90kg / m 3 . However, for the phenolic resin foam of Example 1 without adding a flame retardant, its LOI is 12% on average. This shows that the addition of flame retardan...

Images