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Organic-inorganic composite sol and preparation method and application thereof

A composite sol, inorganic composite technology, applied in separation methods, chemical instruments and methods, dispersed particle separation, etc., can solve the problems of low strength, low water content, low absorption rate, etc., and achieve high water content and high absorption rate. , the effect of high absorption rate

Inactive Publication Date: 2012-06-13
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The invention provides an organic-inorganic composite sol and its preparation method and application. The organic-inorganic composite sol is used to prepare fiber-reinforced medical calcium lime, which can effectively improve the problems of low strength and low water content of current medical carbon dioxide absorbents. It can also improve the problem of low absorption rate caused by excessive addition of enhancer

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] First crush the aluminosilicate fiber to micron level, and at the same time ball mill the calcium chloride for 40 minutes; take 40g of ball-milled calcium chloride powder and 40g of PEG400 (polyethylene glycol) and fully dissolve in 100ml of water to form a stable solution ; Weigh 20g of micron grade aluminum silicate fibers into the solution, ultrasonically mix at 80°C for 40min, and keep stirring to obtain an organic-inorganic composite sol.

[0034] The prepared organic-inorganic composite sol includes: micron-level aluminum silicate fibers, and an organic-inorganic composite water-retaining agent composed of PEG400, calcium chloride and water. In the organic-inorganic composite sol, the mass percentages of micron-level aluminum silicate fiber, calcium chloride and PEG400 are respectively 10%, 20% and 20%, and the balance is water.

[0035] The pH value of the organic-inorganic composite sol prepared above was determined to be 7.4, and the particle size was 100-250 n...

Embodiment 2

[0042] First crush the aluminosilicate fiber to the micron level, and ball mill the sepiolite for 40 minutes at the same time; take 10g of the ball-milled sepiolite powder and 80g of glycerin and fully dissolve them in 100ml of water to form a stable solution; weigh 10g of the micron level The aluminum silicate fiber was added into the solution, ultrasonically mixed at 60°C for 60 minutes, and kept stirring to obtain an organic-inorganic composite sol.

[0043] The prepared organic-inorganic composite sol includes: micron-level aluminum silicate fibers, and an organic-inorganic composite water-retaining agent composed of glycerin, sepiolite and water. In the organic-inorganic composite sol, the mass percentages of micron-level aluminum silicate fiber, sepiolite and glycerin are respectively 5%, 5% and 40%, and the balance is water.

[0044] Wherein, the sepiolite adopts α-sepiolite with water content lower than 4wt%.

[0045] The pH value of the organic-inorganic composite so...

Embodiment 3

[0051] First crush the aluminosilicate fiber to micron level, and at the same time perform ball milling on magnesium chloride for 40 minutes; take 80g of ball-milled magnesium chloride powder and 10g of glycerin and fully dissolve in 106ml of water to form a stable solution; weigh 4g of micron-level aluminum silicate Fibers were added to the solution, and ultrasonically mixed at 80°C for 120 minutes, and kept stirring to obtain an organic-inorganic composite sol.

[0052] The prepared organic-inorganic composite sol includes micron-level aluminum silicate fibers and an organic-inorganic composite water-retaining agent composed of glycerin, magnesium chloride and water. In the organic-inorganic composite sol, the mass percentages of micron-level aluminum silicate fiber, magnesium chloride and glycerin are respectively 2%, 40% and 5%, and the balance is water.

[0053] The pH value of the organic-inorganic composite sol prepared above was determined to be 8.2, and the particle s...

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Abstract

The invention discloses an organic-inorganic composite sol and a preparation method and an application thereof. The organic-inorganic composite sol of the invention comprises aluminum silicate fibers with a micron level of dimensions and an organic-inorganic composite water-retaining agent; the organic-inorganic composite water-retaining agent comprises an organic water-retaining agent, an inorganic water-retaining agent and water; in the organic-inorganic composite sol, the mass percents of the aluminum silicate fibers, the inorganic water-retaining agent and the organic water-retaining agent are respectively 2-10%, 5-40% and 5-40%, and the rest balance of water; the inorganic water-retaining agent is sepiolite, calcium chloride or magnesium chloride; the organic water-retaining agent is glycerol, polyethylene glycol or propylene glycol. The organic-inorganic composite sol of the invention is used for preparing fiber reinforced medical calcium lime to effectively improve such problems as low strength and low water content of the current medical carbon dioxide absorbent, and the like; besides, the organic-inorganic composite sol can be used for improving the problem of low absorption rate caused by over large reinforcing agent adding dosage.

Description

technical field [0001] The invention belongs to the technical field of medical carbon dioxide absorbers, and in particular relates to an organic-inorganic composite sol for preparing fiber-reinforced medical carbon dioxide absorbers and a preparation method thereof. Background technique [0002] In clinical medicine, in order to maintain continuous anesthesia for patients during general anesthesia operations, a closed-loop low-flow anesthesia system is generally used to maintain the patient's breathing. Due to the closed nature of the system, a substance is required to absorb the carbon dioxide exhaled by the patient, and this substance is a medical carbon dioxide absorbent. According to whether it contains sodium and potassium, medical carbon dioxide absorbers are divided into soda lime (containing sodium or potassium) and calcium lime (low sodium and no potassium). [0003] In practical applications, soda lime is still an optional carbon dioxide absorber, but it is not an...

Claims

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Application Information

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IPC IPC(8): B01D53/82B01D53/62
CPCY02A50/20
Inventor 程逵陈丰翁文剑黄海生
Owner ZHEJIANG UNIV