A kind of method that utilizes eucalyptus bark to prepare oil-absorbing fiber
A technology of oil-absorbing fiber and eucalyptus bark is applied in the field of adsorption materials, which can solve the problems of wasting resources, occupying storage sites, breeding pests and other problems, and achieving the effects of environmental protection, small specific gravity and high oil absorption efficiency.
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Embodiment 1
[0025] A method for preparing oil-absorbing fibers from eucalyptus bark, comprising hydrolysis and cooking → brooming and decomposing → purification and drying → lipophilic and hydrophobic modification → drying steps, the process steps are:
[0026] (1) Hydrolysis and cooking: cut eucalyptus bark into 3cm long pieces, put them into a cooking pot, add 4 times the weight of water, heat, heat up to 140°C within 60 minutes, keep warm for 60 minutes, and discharge;
[0027] (2) Thinning and defrosting: Put the material after hydrolysis and cooking into the fiber separator, wash according to the conventional method, sieve, and dry to obtain pulp;
[0028] (3) Purification and drying: Disperse the pulp in water according to the conventional method and let it stand still or use a slag remover to remove sand, small knots and undistilled eucalyptus bark impurities in the pulp, then make sheets and place them in a blower at 60 °C Air-dried to obtain eucalyptus bark fibers with a moisture...
Embodiment 2
[0033] A method for preparing oil-absorbing fibers from eucalyptus bark, comprising hydrolysis and cooking → brooming and decomposing → purification and drying → lipophilic and hydrophobic modification → drying steps, the process steps are:
[0034] (1) Hydrolysis cooking: cut eucalyptus bark into 4cm long pieces, put them into a cooking pot, add 5 times the weight of water, heat, heat up to 165°C within 90min, keep warm for 210min, and discharge;
[0035] (2) Thinning and defrosting: Put the material after hydrolysis and cooking into the fiber separator, wash according to the conventional method, sieve, and dry to obtain pulp;
[0036](3) Purification and drying: Disperse the pulp in water according to the conventional method and let it stand still or use a slag remover to remove sand, small knots and undistilled eucalyptus bark impurities in the pulp, then make sheets and place them in a blower at 60 °C Air-dried to obtain eucalyptus bark fibers with a moisture content less ...
Embodiment 3
[0041] A method for preparing oil-absorbing fibers from eucalyptus bark, comprising hydrolysis and cooking → brooming and decomposing → purification and drying → lipophilic and hydrophobic modification → drying steps, the process steps are:
[0042] (1) Hydrolysis cooking: cut eucalyptus bark into 4cm long pieces, put them into a cooking pot, add 5 times the weight of water, heat, heat up to 150°C within 75min, keep warm for 150min, and discharge;
[0043] (2) Thinning and defrosting: Put the material after hydrolysis and cooking into the fiber separator, wash according to the conventional method, sieve, and dry to obtain pulp;
[0044] (3) Purification and drying: Disperse the pulp in water according to the conventional method and let it stand still or use a slag remover to remove sand, small knots and undistilled eucalyptus bark impurities in the pulp, then make sheets and place them in a blower at 60 °C Air-dried to obtain eucalyptus bark fibers with a moisture content less...
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