Straw fiber material and preparation method thereof
A technology of straw fiber and fiber material, which is applied in the chemical characteristics of fibers, cellulose/protein conjugated rayon, and conjugated rayon, etc., can solve the problems of insufficient antistatic ability, weak heat preservation ability, and high thermal conductivity
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[0016] The present invention provides a kind of preparation method of straw fiber material, and described preparation method comprises:
[0017] (1) mixing coal tar pitch and petroleum pitch, and heating to a molten state under the protection of an inert gas to prepare a mixed pitch raw material;
[0018] (2) Mixing plant straw, sodium methyl silicate and methanol according to the mass ratio of 5-8:5-15:25, and then softening to obtain a plant straw mixture; wherein, the softening conditions include at least: softening temperature The temperature is 90-100℃, and the softening time is 10-20min;
[0019] (3) mixing the mixed asphalt raw material, asphalt viscosity reducer, fiber material, plant straw mixture, polyvinyl alcohol and polystyrene to obtain a mixture M;
[0020] (4) The mixture M is subjected to spinning treatment to obtain raw silk; wherein, the heating conditions in the spinning treatment include: rising to 150-170°C at a heating rate of 10-20°C / min, and then heat...
Embodiment 1
[0033] Mix 100g of coal tar pitch and 100g of petroleum pitch, and heat it under nitrogen protection (the heating temperature is 500°C, and the heating time is 0.5h) to a molten state to prepare the mixed pitch raw material; plant straw, methyl silicic acid Sodium and methanol are mixed according to the mass ratio of 5:5:25, and then softened to obtain a plant straw mixture; wherein, the softening conditions include: the softening temperature is 90°C, and the softening time is 10 minutes; 100g of mixed asphalt raw materials, 8g of triethanolamine, 25g of glass fiber, 15g of plant straw mixture, 35g of polyvinyl alcohol and 40g of polystyrene are mixed to obtain a mixture M; the mixture M is subjected to a spinning process to obtain a raw silk; wherein, the heating conditions in the spinning process include: The heating rate of ℃ / min was raised to 150 ℃, and then raised to 190 ℃ at a rate of 5 ℃ / min; the raw silk was heated and carbonized to obtain straw fiber material A1; where...
Embodiment 2
[0035]Mix 100g of coal tar pitch and 200g of petroleum pitch, and heat it under the protection of helium (the heating temperature is 550°C, and the heating time is 1h) to a molten state to prepare the mixed pitch raw material; plant straw, methyl silicic acid Sodium and methanol are mixed according to the mass ratio of 8:10:25, and then softened to obtain a plant straw mixture; wherein, the softening conditions include: the softening temperature is 100°C, and the softening time is 20 minutes; 100g of mixed asphalt raw materials, 12g of polyacrylamide, 35g of boron fiber, 25g of plant straw mixture, 45g of polyvinyl alcohol and 50g of polystyrene are mixed to obtain a mixture M; the mixture M is subjected to a spinning process to obtain a raw silk; wherein, the heating conditions in the spinning process include: Raise the heating rate to 170°C at a rate of 20°C / min, and then increase to 210°C at a rate of 10°C / min; heat and carbonize the raw silk to obtain straw fiber material A...
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