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Foam material and its preparation method and use

A technology for foam materials and uses, applied in the field of organic material preparation, can solve the problems of cell damage, blockage, and low usage times.

Active Publication Date: 2016-07-06
金碳环境科技(天津)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In existing applications, the foam material has a high water and oil absorption capacity, and after being squeezed to remove the oil, it can be used again, and after many times of use, the cells are destroyed or blocked
Low number of uses of prior art foams

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Taking the Chinese patent CN200910060231.0 as an example, this patent involves high oil-absorbing polyurethane foam material, and its formula components are as follows (all parts by weight, the same below):

[0029] MDI30 parts

[0030] 50 parts polyol

[0031] Catalyst 1.5 parts

[0032] Foam stabilizer (L600) 1.8 parts

[0033] Foaming agent (deionized water) 5 parts

[0034] Cell opener (C-18) 3 parts

[0035] Flame retardant (expanded graphite) 15 parts

[0036] Silicone rubber spherical micropowder 5 parts

[0037] 1 part coupling agent

[0038] The oil absorption rate to gasoline of the obtained polyurethane foam block was 25 g / g, and the water absorption rate was 1.2 g / g.

[0039] The inventor of the present application adopts the polyurethane foam prepared from the above components, cuts and pulverizes it to obtain a powder with a particle size of about 2-500 microns, and the oil absorption rate of the obtained polyurethane foam block to gasoline is 23g / g...

Embodiment 2

[0041] Propylene glycol is 70 parts of polyoxyethylene oxide propylene ether polyols of initiator

[0042] Glycerin is 30 parts of polyoxyethylene oxide propylene ether polyols of initiator

[0043] 1 part diethanolamine

[0044] 2.4 parts of water

[0045] 0.3 parts of tetramethylhexamethylenediamine

[0046] Triethylenediamine 0.1 part

[0047] Poly MDI49.6 parts

[0048] The mold temperature is 40 degrees Celsius. Cure time 4 minutes, gel time 96 seconds, rise time 163 seconds.

[0049] The foam density of the obtained semi-rigid foamed plastic was 159 kg / m3, the final Shore C hardness was 37, and the average cell diameter was 400 microns.

[0050] Among them, the poly MDI is MR-200 from Japan NPU Company, the polyoxyethylene oxide propylene ether polyol with propylene glycol as the initiator has a hydroxyl value of 28, a molecular weight of 4000, and an ethylene oxide content of 20%. Polyoxyethylene oxide propylene ether polyol with glycerin as the initiator has a h...

Embodiment 3

[0060] Using the scheme of Example 2, add 3 parts of aluminum silicate nearly round powder, the average particle size of the powder is 100, 400, 1000 microns, and compare with Example 2 without adding aluminum silicate powder. The resulting foam powder was pulverized to an average of 400 microns. The oil absorption of waste gear oil (lubricating oil containing anti-wear agent, as well as metal flocs, carbon particles, etc.) is roughly the same, both of which are between 16-18g / g. The number of oil absorption decayed to 50% oil absorption was 10, 20, and 7 times, respectively. The number of times without adding aluminum silicate powder is 5 times.

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Abstract

The invention relates to foam materials and belongs to the field of organic material preparation. The invention also relates to a preparation method and use of the foam material. A foam comprising an inert inorganic filler. The foam material is added with an inert inorganic material, so that the cells are not easy to be damaged and blocked, and the use times of the foam material are increased.

Description

technical field [0001] The invention relates to foam materials and belongs to the field of organic material preparation. The invention also relates to a preparation method and use of the foam material. Background technique [0002] The interior of the foam material is a grid-like or film-like porous structure, so it not only has a large specific surface area, but also contains rich capillary channels inside. Therefore, when it is in contact with the oil-water mixture, it will not only produce adsorption on the surface of the material but also absorb oil and water along with the filling space, mainly by the adsorption and filling of mesopore capillary condensation and macroporous multi-molecular layer. Therefore, both water and oil are easier to gather in the micropores of this type of foam to form a certain thickness. In the oil-water mixture, it also absorbs water while absorbing oil. The water absorption rate is generally 2-4 times its own weight. [0003] In existing ap...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L75/08C08L83/04C08G18/76C08G18/79C08G18/48C08G18/32C08K3/34C08K3/04C09K3/32C08G101/00
Inventor 李林瑛
Owner 金碳环境科技(天津)有限公司