Slow release type mildew-proof molecular sieve as well as mildew-proof drying agent and preparation method thereof

A molecular sieve and slow-release technology, applied in separation methods, botanical equipment and methods, chemical instruments and methods, etc., can solve the problems of no anti-mold effect, poor anti-mold effect, etc.

Active Publication Date: 2016-05-18
广州广微环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the existing desiccant has no anti-mildew effect and poor anti-mildew effect, the present invention proposes an anti-mildew desiccant, whose components cont

Method used

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  • Slow release type mildew-proof molecular sieve as well as mildew-proof drying agent and preparation method thereof
  • Slow release type mildew-proof molecular sieve as well as mildew-proof drying agent and preparation method thereof
  • Slow release type mildew-proof molecular sieve as well as mildew-proof drying agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] An anti-mildew desiccant, calculated in parts by weight, comprises the following components: 100 parts of bentonite, 80 parts of sepiolite, 40 parts of cross-linked sodium polyacrylate, and 50 parts of slow-release anti-mildew molecular sieve.

[0019] Among them, the slow-release anti-mildew molecular sieve, calculated in parts by weight, includes the following components: fumigant and mustard oil, PEG4000, water-based resin E100, plasticizer and molecular sieve with a particle size of 1mm.

[0020] The preparation method of the slow-release anti-mildew molecular sieve is as follows:

[0021] Add 200 parts of molecular sieves with a particle size of 1mm in the coating pan, keep the temperature at room temperature, and adjust the rotation speed to 60r / min; then add 25 parts of fumigant, keep the rotation speed constant, for 10 minutes, to ensure that the molecular sieve can fully absorb the fumigant; add mustard 35 parts of oil, keep the rotation speed constant, and the...

Embodiment 2

[0025] An anti-mildew desiccant, calculated in parts by weight, comprises the following components: 180 parts of bentonite, 140 parts of sepiolite, 30 parts of cross-linked sodium polyacrylate, and 90 parts of slow-release anti-mildew molecular sieve.

[0026] Among them, the slow-release anti-mildew molecular sieve, calculated in parts by weight, includes the following components: fumigant and mustard oil, PEG2000, water-based resin S100, plasticizer and molecular sieve with a particle size of 2 mm.

[0027] The preparation method of the slow-release anti-mildew molecular sieve is as follows:

[0028] Add 110 parts of molecular sieves with a particle size of 1mm in the coating pan, keep the temperature at room temperature, and adjust the speed at 60r / min; add 20 parts of fumigant, keep the speed constant, and keep the speed constant for 10 minutes to ensure that the molecular sieve can fully absorb the fumigant; add mustard oil 30 parts, keep the rotation speed constant, and ...

Embodiment 3

[0032] Calculation of theoretical dosage of desiccant:

[0033] U=30.4×C×A×R×M×DRF / B

[0034] U: number of desiccant units

[0035] A desiccant unit is defined as: at 25°C equilibrium temperature, according to the adsorption capacity of the desiccant, the weight of the desiccant required to absorb the following weights of water vapor in different humidity environments.

[0036] 3.00g at 20% relative humidity,

[0037] 6.00g at 40% relative humidity.

[0038] A: The inner surface area of ​​the moisture barrier packaging bag (excluding the sealing area) (in 2 )

[0039] R: Water vapor transmission rate of the moisture barrier packaging bag ([g / 100in 2 ] / 24h)

[0040] M: maximum storage time (month)

[0041] DRF: desiccant reduction factor (see Table 1 below)

[0042] B: The minimum moisture absorption capacity of the desiccant at MIH (maximum humidity in the package) (g / unit)

[0043] C: 0.01 area constant (100in 2 / in 2 )

[0044] Table 1 Desiccant reduction factor ...

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Abstract

The invention provides a slow release type mildew-proof molecular sieve as well as a mildew-proof drying agent and a preparation method thereof. The slow release type mildew-proof molecular sieve is prepared from the following components: a mildew-proof agent, a carrier, a slow releasing agent, a plasticizer and a molecular sieve, wherein the mildew-proof agent is selected from one or two of a fumigation agent and mustard oil. The mildew-proof drying agent is prepared from the following components: clay type minerals, a binding agent and the slow release type mildew-proof molecular sieve. The preparation method of the mildew-proof drying agent comprises the following step of uniformly mixing and stirring the clay type minerals, the binding agent and the slow release type mildew-proof molecular sieve. The mildew-proof drying agent provided by the invention has the advantages of good drying effect, high mildew-proof capability, lasting effect, wide application area, wide application range, convenience for utilization, safety and no toxin and the like.

Description

technical field [0001] The invention relates to a desiccant, in particular to an anti-mildew desiccant comprising a slow-release anti-mildew molecular sieve and a preparation method thereof. Background technique [0002] The role of desiccant: if used in a relatively closed space, it is used to control the humidity of the space where the product is located, so as to protect the product from moisture. Check by yourself during the packaging and transportation of various products such as leather products, textiles, garments, toys, sports equipment, electronic products, and footwear. Generally, the desiccant used has single function, poor moisture absorption effect, short action time, and unsatisfactory use effect. agent, mineral desiccant, fiber desiccant, etc. Depending on the material, the drying capacity of the desiccant will vary. [0003] According to the current situation of common desiccants on the market, it is found that most of the desiccants mainly rely on moistur...

Claims

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Application Information

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IPC IPC(8): A01N65/08A01N25/18A01N25/10A01P3/00B01D53/28
CPCA01N25/10A01N25/18A01N65/08B01D53/28
Inventor 喻倩
Owner 广州广微环境科技有限公司
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