Two-layer porous-type polymer absorbent without leakage after absorption and preparation method thereof

Abstract

The invention discloses a two-layer porous-type polymer absorbent without leakage after absorption. The two-layer porous-type polymer absorbent without leakage after absorption is characterized by being prepared, by weight, by the following raw materials of 26-29 parts of hexyl acrylate, 19-21 parts of butyl methacrylate, 4-5 parts of attapulgite, 21-23 parts of ethyl acetate, 5-7 parts of n-heptane, 3-5 parts of sodium bicarbonate, 0.15-0.2 part of ethylene glycol dimethacrylate, 1-2 parts of sodium dodecyl sulfate, 3-4 parts of polyving akohol, 1-1.2 parts of dicumyl peroxide, 0.9-1.2 parts of p-methylstyrene, 1.8-2.5 parts of divinyl benzene, 1-2 parts of nano-aluminum trihydrate, 0.05-0.07 part of silane coupling agent kh450, 1-1.2 parts of di(isooctyl) phosphate, 0.5-0.6 part of silicone oil and appropriate distilled water. According to the two-layer porous-type polymer absorbent without leakage after absorption, modification is conducted based on a traditional technology, a two-layer porous structure is prepared, leakage is not produced again after absorption, and meanwhile the poisonous vapor harm is greatly reduced.

Description

technical field [0001] The invention relates to the field of materials, in particular to a double-layer porous polymer absorbent that does not leak after adsorption and a preparation method thereof. Background technique [0002] With the continuous progress of society and the rapid development of industry, waste pollutants are often discharged and produced in the process of industrial production, oil transportation, human activities, natural disasters, etc. These leakage accidents and discharge processes often cause energy loss and environmental threats , and even affect human health, therefore, it is very necessary to find out efficient methods to remove oil and organic pollutants. [0003] Traditional oil-absorbing materials are mostly inorganic and organic materials that are modified, mixed, and pressed by physical methods. According to their oil-absorbing mechanism, they can be divided into occlusion-type oil-absorbing materials, gel-type oil-absorbing materials, and occ...

AI Technical Summary

Problems solved by technology

[0003] Traditional oil-absorbing materials are mostly inorganic and organic materials that are modified, mixed, and pressed by physical methods. According to their oil-absorbing mechanism, they can be divided into occlusion-type oil-absorbing materials, gel-type oil-absorbing materials, and occlusion-gel composite oil-absorbing materials. , this type of oil-absorbing material absorbs oil by using the capillary force of its surface, gap and cavity and / or utilizes the physical cohesion between molecules or substances to wrap the oil-absorbing space in the interstitial space generated during the formation of the network structure; and the existing The oil-absorbing resin is polymerized from two or more acrylate or olefin reactive monomers. It has a certain oil absorption ratio, but the oil absorption ratio is not very high. This is because the resin is chemically cross-linked and covalently bonded. It has a large bond energy and strong binding to the molecular chain. The chain segments between the cross-linking points are short and the cross-linking density is high. Low oil absorption ratio, slow oil absorption speed, low oil absorption, poor oil retention, there are many inconveniences in actual operation, such as the oil absorption material after absorbing oil will be re-released into the environment during transportation and storage , causing secondary pollution