A kind of hydrophobic modification method of melamine sponge and its product and application
A melamine sponge, hydrophobic modification technology, applied in separation methods, chemical instruments and methods, other chemical processes, etc., can solve the problems of complex, toxic synthesis processes with high modifier prices, difficult to efficiently use for oil-water separation, etc., Achieve the effect of good mechanical properties, easy operation and simple modification method
Active Publication Date: 2020-11-27
NANJING FORESTRY UNIV
View PDF8 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, melamine sponges are difficult to be used for oil-water separation efficiently because they are hydrophilic and lipophilic. Melamine sponges are often hydrophobically modified by materials such as graphene, polysiloxane, organosiloxane, and metal-organic framework materials.
However, in the prior art, these modifiers are expensive and toxic and the synthesis process is complicated, which is not conducive to large-scale production and application
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0029] Dissolve the sodium alginate solution in water to prepare a sodium alginate solution with a concentration of 0.1wt%, soak the melamine sponge in the sodium alginate solution for 4 hours, take it out and lyophilize it and soak it in 200mL 3wt% ZrOCl 2 ·8H 2 0 solution for 4 hours, and dried at 80°C after washing to obtain a hydrophobic melamine sponge.
Embodiment 2
[0031] Dissolve the sodium alginate solution in water to prepare a sodium alginate solution with a concentration of 0.02wt%, soak the melamine sponge in the sodium alginate solution for 4 hours, take it out and lyophilize it and soak it in 200mL 3wt% ZrOCl 2 ·8H 2 0 solution for 4 hours, and dried at 80°C after washing to obtain a hydrophobic melamine sponge.
Embodiment 3
[0033] Dissolve the sodium alginate solution in water to prepare a sodium alginate solution with a concentration of 0.01wt%, soak the melamine sponge in the sodium alginate solution for 4 hours, take it out and lyophilize it and soak it in 200mL 3wt% ZrOCl 2 ·8H 2 0 solution for 4 hours, and dried at 80°C after washing to obtain a hydrophobic melamine sponge.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a hydrophobic modification method of melamine sponge and a product and application thereof, and the hydrophobic modification method comprises the following steps: immersing themelamine sponge in a sodium alginate solution, taking out, freeze-drying, and performing zirconium ion crosslinking to obtain modified melamine sponge. The hydrophobic modification method of the melamine sponge is simple, inexpensive, environmentally friendly, and easy to operate and can be mass-produced; the modified melamine sponge has high lipophilic-hydrophobic property and can be used for oil-water separation application. The modified melamine sponge can be used as an oil adsorbent or as an oil-water separation material capable of absorbing water surface (bottom) oil. The modified melamine sponge has good mechanical properties; modified sodium alginate sponge has high plasticity, can be prepared into the modified melamine sponge of different sizes and shapes as needed, can also be coated on other porous carriers such as nylon filter nets, and is suitable for a variety of occasions.
Description
technical field [0001] The invention belongs to the technical field of adsorption and separation materials, and in particular relates to a hydrophobic modification method of melamine sponge and its product and application. Background technique [0002] Straw, activated carbon, zeolite, and cotton fibers are often used as oil-absorbing materials, but their low adsorption capacity and difficult separation make them difficult to apply on a large scale; direct incineration of oil slicks will lead to waste of resources and secondary environmental pollution. Therefore, how to efficiently separate the oil-water mixture is one of the research focuses of scientific researchers. At present, melamine sponge is often used as an oil-absorbing material and has been widely used due to its low price, easy availability, superior mechanical properties, and high porosity. However, melamine sponges are difficult to be used for oil-water separation efficiently because they are hydrophilic and l...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): C08J9/42C08J3/24B01J20/26B01J20/28B01J20/30B01D17/022C08L61/28
CPCB01D17/0202B01J20/267B01J20/28011C08J3/24C08J9/42C08J2361/28C08J2405/04
Inventor 姚建峰王亚权冯艺刘洋
Owner NANJING FORESTRY UNIV