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Special polyurethane biochemical cotton for aquarium and preparation method thereof

A polyurethane and aquarium technology, applied in the chemical industry, can solve the problems of low density of biochemical cotton, poor biochemical effect, slowing down of water flow, etc., and achieve the effect of high compressive strength, good hand feeling and low resistance

Active Publication Date: 2017-09-29
ZIBO ZHENGDA ENERGY SAVING NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The biochemical cotton currently on the market has low density, few pores, poor water filtration, and high resistance, which will obviously slow down the water flow, poor elasticity, soft hand feeling, and poor biochemical effect.
And after washing several times, the elasticity will weaken and the interior will be damaged

Method used

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  • Special polyurethane biochemical cotton for aquarium and preparation method thereof
  • Special polyurethane biochemical cotton for aquarium and preparation method thereof
  • Special polyurethane biochemical cotton for aquarium and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The special polyurethane biochemical cotton for aquarium according to the present invention is made of component A and component B according to the following parts by weight:

[0036] A component:

[0037]

[0038] B component:

[0039] 88 parts of modified black material;

[0040] in:

[0041] The modified black material is a polyether polyol with a functionality of 2 and a molecular weight of 2000 and the black material PM200 in a mass ratio of 4:4.2, and reacted at 85°C for 3 hours to prepare a modified black material with an NCO content of 19%.

[0042] Its preparation method comprises the following steps:

[0043] Put all the ingredients of component A into the mixer and mix evenly, adjust the constant material temperature to 25±2°C, adjust the speed of the agitator to 4500r / min, pour the component B preheated to 25±2°C into the component A and stir for 8s , Pour the mixed material into a mold preheated to 40±5°C, demould after 8 minutes, and remove the bubb...

Embodiment 2

[0052] The special polyurethane biochemical cotton for aquarium according to the present invention is made of component A and component B according to the following parts by weight:

[0053] A component:

[0054]

[0055] B component:

[0056] 90 parts of modified black material;

[0057] in:

[0058] The modified black material is a polyether polyol with a functionality of 2 and a molecular weight of 2000 and the black material PM200 in a mass ratio of 4:4.2, and reacted at 85°C for 3 hours to prepare a modified black material with an NCO content of 19%.

[0059] Its preparation method comprises the following steps:

[0060] Put all the raw materials of component A into the mixer and mix evenly, adjust the constant material temperature to 25±2°C, adjust the speed of the agitator to 4000r / min, pour the component B preheated to 25±2°C into the component A and stir for 7 -9s, pour the mixed material into a mold preheated to 40±5°C, demould after 10 minutes, and remove the...

Embodiment 3

[0069] The special polyurethane biochemical cotton for aquarium according to the present invention is made of component A and component B according to the following parts by weight:

[0070] A component:

[0071]

[0072] B component:

[0073] 85 parts of modified black material;

[0074] in:

[0075] The modified black material is a polyether polyol with a functionality of 2 and a molecular weight of 2000 and the black material PM200 in a mass ratio of 4:4.2, and reacted at 85°C for 3 hours to prepare a modified black material with an NCO content of 19%.

[0076] Its preparation method comprises the following steps:

[0077] Put all the raw materials of component A into the mixer and mix evenly, adjust the constant material temperature to 25±2°C, adjust the speed of the agitator to 5000r / min, pour the component B preheated to 25±2°C into the component A and stir for 7 -9s, pour the mixed material into a mold preheated to 40±5°C, demould after 5 minutes, and remove the bu...

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Abstract

The invention belongs to the field of chemical engineering and in particular relates to special polyurethane biochemical cotton for an aquarium and a preparation method of the special polyurethane biochemical cotton. The special polyurethane biochemical cotton is prepared from an A component and a B component, wherein the A component is prepared from polyether polyol, grafted polyether polyol, a foam stabilizer, an amine catalyst, a metal catalyst, a crosslinking agent, a chain extender and a physical foaming agent, the functionality of the polyether polyol is 3, the molecular weight of polyether polyol is 1000-1500,the functionality of grafted polyether polyol is 3, the molecular weight of grafted polyether polyol is 5000-6000; the B component is a modified black material. The special polyurethane biochemical cotton for the aquarium is good in hand feeling, high in density, large in amount of pores, good in drainability, small in resistance to water, high in compressive strength and long in service life, also has the characteristics of permanent elasticity and the like and can be repeatedly used for a long time. The invention also provides the preparation method of the special polyurethane biochemical cotton. The preparation method is simple in processing process and high in production efficiency.

Description

technical field [0001] The invention belongs to the field of chemical industry, and in particular relates to a special polyurethane biochemical cotton for aquariums and a preparation method thereof. Background technique [0002] In ornamental aquariums such as seawater tanks, freshwater tanks, and aquatic plant tanks, because ornamental fish will produce a large amount of metabolic wastes that are toxic to fish, such as ammonia and nitrite, and residual bait dissolved in water, we must Remove it to ensure the life safety of the fish in the fish tank. Ordinary filter cotton can only perform physical filtration to filter out insoluble solid feces and residual bait in water. Therefore, it is necessary to cultivate nitrifying bacteria for biological filtration, so that nitrifying bacteria can decompose toxic ammonia and nitrite in water and convert them into non-toxic NO. 3 . Biochemical cotton is a kind of filter material with biochemical filtration effect, which acts as a ba...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/66C08G18/48C08G18/32C08G18/10C08J9/12A01K63/04B01D39/02
CPCA01K63/006B01D39/04C08G18/3206C08G18/3275C08G18/4804C08G18/664C08G18/6655C08G2101/00C08G2110/0083
Inventor 耿佃勇柴可军董伟
Owner ZIBO ZHENGDA ENERGY SAVING NEW MATERIAL