Horizontal barrier material for risk management and control of polluted land parcel and preparation method
A barrier material and risk technology, which is applied in the field of horizontal barrier materials and preparation for the risk management and control of polluted plots, can solve the problems of inconvenient treatment and repair, increase of polluted soil, poor structural strength, etc., and achieve easy mass production, abundant raw material sources, Simple preparation method
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Embodiment 1
[0030] The horizontal barrier material used for risk management and control of polluted plots in this embodiment is made of a mixture of modified natural short fibers, powder and liquid materials, wherein,
[0031] Described modified natural staple fiber is the modified jute fiber of length 3mm;
[0032] Above-mentioned modified natural short fiber is to be processed gained by following method:
[0033] 1) Soak 3mm jute fiber in 2wt% sodium hydroxide solution, take it out after reacting at 20±2°C for 0.5h, wash it with water several times, and then wash the jute fiber to medium with distilled water containing 1wt% acetic acid After washing several times with water, dry at room temperature;
[0034] 2) Dissolve the silane coupling agent in a solution of ethanol and water with a volume ratio of 3:2, prepare a 5wt% silane coupling agent solution, and adjust the pH of the silane coupling agent solution between 3.5 and 4 with a small amount of acetic acid;
[0035] 3) Soak the ju...
Embodiment 2
[0040] The horizontal barrier material used for risk management and control of polluted plots in this embodiment is made of a mixture of modified natural short fibers, powder and liquid materials, wherein,
[0041] Described modified natural staple fiber is the modified mountain palm fiber of length 5mm;
[0042] Above-mentioned modified natural short fiber is to be processed gained by following method:
[0043] 1) Soak 5mm palm fiber in 5wt% sodium hydroxide solution, react at 20±2°C for 1 hour, take it out, wash it with water several times, and then wash the palm fiber with distilled water containing 1wt% acetic acid until Neutral, after washing with water for several times, put it into the oven, and dry it at 80°C to constant weight;
[0044] 2) Dissolve the silane coupling agent in a solution of ethanol and water with a volume ratio of 3:2, prepare a 5wt% silane coupling agent solution, and adjust the pH of the silane coupling agent solution between 3.5 and 4 with a small...
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