A kind of wood composite fiber and preparation method thereof

Abstract

The invention discloses a wood composite fiber and a preparation method thereof. The preparation method is prepared from raw materials including 40-50% of Chinese pennisetum fibers, 20-30% of cotton stalk fibers, 10-20% of waste paper of offices, 5-10% of conifer liquefied timber and 4-5% of a nanometer silica dispersion liquid by weight. The preparation method of the wood composite fiber includessteps of preparation of the raw materials and packaging. The wood composite fiber includes little ash, is high in heat resistance and oil absorbency, low in cost, and ideal for roads or preparation of high-intensity boards, and technology of the wood composite fiber is environment-friendly.

Description

technical field

[0001] The invention belongs to the field of new materials, and in particular relates to a wood composite fiber and a preparation method thereof. Background technique

[0002] From the adoption of the "Framework Convention on Climate Change" at the 1st United Nations Conference on Environment and Development in Rio de Janeiro, Brazil in 1992, to the adoption of the "Paris Agreement" at the 21st Global Climate Conference in Paris, France, in 2015 to make arrangements for global action on climate change after 2020, and then By 2016, China and the United States ratified the Paris Agreement at the G20 Summit in Hangzhou, China. While "building an innovative, dynamic, interconnected, and inclusive world economy", it left endless thinking and heavy burdens for resource, environment, and material science and technology workers. On the one hand, the development and plunder of forests, oil and mineral resources by human beings has reached the point of madness; And se...

Examples

Embodiment 1

[0031] A wood composite fiber, the wood composite fiber is made of five components, the weight percentage of each component is: Pennisetum fiber 40%, cotton stem fiber 30%, waste paper fiber of grass pulp paper copy paper 20%, slash pine liquefied wood 5%, nano-silica dispersion 5%.

[0032] Wherein, the slash pine liquefied wood is obtained by vacuum-drying some slash pine sawdust, crushing, sieving, mixing with a wood liquefying agent, and then performing microwave liquefaction to obtain coniferous liquefied wood.

[0033] The nano-silicon dioxide dispersion liquid is a transparent liquid, the pH value is 6.1, the nano-silicon dioxide content is 20%, and the particle size of the nano-silicon dioxide is 10%.

[0034] The preparation method of above-mentioned wood composite fiber, comprises the following steps:

[0035] Step 1: Preparation of Pennisetum fiber: collect some Pennisetum in the wilderness, soak in 5% NaOH solution for 10 hours at room temperature after drying, re...

Embodiment 2

[0043] A wood composite fiber, the wood composite fiber is made of five components, the weight percentage of each component is: Pennisetum fiber 50%, cotton stem fiber 20%, wood pulp paper copy paper waste paper fiber 16% %, gray cedar liquefied wood 10%, nano-silica dispersion 4%.

[0044] Preferably, the liquefied wood of Chinese fir is obtained by taking some sawdust of Chinese fir, crushing and sieving after vacuum drying, mixing with a wood liquefaction agent, and then performing microwave liquefaction to obtain coniferous liquefied wood.

[0045] Preferably, the nano-silicon dioxide dispersion liquid is a transparent liquid with a pH value of 9, a nano-silicon dioxide content of 30%, and a particle size of the nano-silicon dioxide of 20 nm.

[0046] The preparation method of described a kind of wood composite fiber, comprises the following steps:

[0047] Step 1: Preparation of Pennisetum fiber: collect some Pennisetum in the wilderness, after drying, removing impuritie...

Embodiment 3

[0055] The difference from Example 1 is that the percentage by weight of each component is: Pennisetum fiber 45%, cotton stem fiber 20%, wood pulp paper copy paper waste paper fiber 20%, conifer liquefied wood 10%, nanometer dioxide Silicon dispersion 5%.

[0056] Wherein, the coniferous tree is pinus slash pine or gray fir, and the liquefied wood of coniferous trees is, take some pinus slash pine or gray fir sawdust, after vacuum drying, crush and sieve, mix with wood liquefaction agent and then carry out microwave liquefaction , the obtained conifer liquefied wood.

[0057] Its preparation method refers to Example 1-2.

technical field

[0001] The invention belongs to the field of new materials, and in particular relates to a wood composite fiber and a preparation method thereof. Background technique

[0002] From the adoption of the "Framework Convention on Climate Change" at the 1st United Nations Conference on Environment and Development in Rio de Janeiro, Brazil in 1992, to the adoption of the "Paris Agreement" at the 21st Global Climate Conference in Paris, France, in 2015 to make arrangements for global action on climate change after 2020, and then By 2016, China and the United States ratified the Paris Agreement at the G20 Summit in Hangzhou, China. While "building an innovative, dynamic, interconnected, and inclusive world economy", it left endless thinking and heavy burdens for resource, environment, and material science and technology workers. On the one hand, the development and plunder of forests, oil and mineral resources by human beings has reached the point of madness; And se...

Examples

Embodiment 1

[0031] A wood composite fiber, the wood composite fiber is made of five components, the weight percentage of each component is: Pennisetum fiber 40%, cotton stem fiber 30%, waste paper fiber of grass pulp paper copy paper 20%, slash pine liquefied wood 5%, nano-silica dispersion 5%.

[0032] Wherein, the slash pine liquefied wood is obtained by vacuum-drying some slash pine sawdust, crushing, sieving, mixing with a wood liquefying agent, and then performing microwave liquefaction to obtain coniferous liquefied wood.

[0033] The nano-silicon dioxide dispersion liquid is a transparent liquid, the pH value is 6.1, the nano-silicon dioxide content is 20%, and the particle size of the nano-silicon dioxide is 10%.

[0034] The preparation method of above-mentioned wood composite fiber, comprises the following steps:

[0035] Step 1: Preparation of Pennisetum fiber: collect some Pennisetum in the wilderness, soak in 5% NaOH solution for 10 hours at room temperature after drying, re...

Embodiment 2

[0043] A wood composite fiber, the wood composite fiber is made of five components, the weight percentage of each component is: Pennisetum fiber 50%, cotton stem fiber 20%, wood pulp paper copy paper waste paper fiber 16% %, gray cedar liquefied wood 10%, nano-silica dispersion 4%.

[0044] Preferably, the liquefied wood of Chinese fir is obtained by taking some sawdust of Chinese fir, crushing and sieving after vacuum drying, mixing with a wood liquefaction agent, and then performing microwave liquefaction to obtain coniferous liquefied wood.

[0045] Preferably, the nano-silicon dioxide dispersion liquid is a transparent liquid with a pH value of 9, a nano-silicon dioxide content of 30%, and a particle size of the nano-silicon dioxide of 20 nm.

[0046] The preparation method of described a kind of wood composite fiber, comprises the following steps:

[0047] Step 1: Preparation of Pennisetum fiber: collect some Pennisetum in the wilderness, after drying, removing impuritie...

Embodiment 3

[0055] The difference from Example 1 is that the percentage by weight of each component is: Pennisetum fiber 45%, cotton stem fiber 20%, wood pulp paper copy paper waste paper fiber 20%, conifer liquefied wood 10%, nanometer dioxide Silicon dispersion 5%.

[0056] Wherein, the coniferous tree is pinus slash pine or gray fir, and the liquefied wood of coniferous trees is, take some pinus slash pine or gray fir sawdust, after vacuum drying, crush and sieve, mix with wood liquefaction agent and then carry out microwave liquefaction , the obtained conifer liquefied wood.

[0057] Its preparation method refers to Example 1-2.