CN103506091B - Flake plastic silicon oxide drying agent and preparation method thereof - Google Patents
Flake plastic silicon oxide drying agent and preparation method thereof Download PDFInfo
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- CN103506091B CN103506091B CN201310428967.5A CN201310428967A CN103506091B CN 103506091 B CN103506091 B CN 103506091B CN 201310428967 A CN201310428967 A CN 201310428967A CN 103506091 B CN103506091 B CN 103506091B
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Abstract
The invention relates to a flake plastic silicon oxide drying agent and a preparation method thereof. The flake plastic silicon oxide drying agent comprises the following components in percentage by weight: 50-90 percent of silicon oxide, 10-50 percent of high-molecule plastic and 0-5 percent of auxiliary material. Compared with the prior art, the flake plastic silicon oxide drying agent can be more consistent with a space for placing the drying agent, can be directly used without packing, and is safe and environmental friendly; moreover, the amount of drying agent placed in the space is greatly increased, and the moisture absorption capacity is higher under the same volume; the method can realize automatic production and has great application prospect and economic value.
Description
Technical field
The present invention relates to chemical material field, particularly, relate to a kind of flake plastic silicon oxide drier and preparation method thereof.
Background technology
Along with widely using of drier, require that drier volume is less, and conjunction can better be carved mutually with packing container; More require that drier is in use safe and reliable, moisture pick-up properties is stablized, and can be reproduced, Reusability.
What generally adopt in recent years is the drier such as packed silica gel, its major defect is: the drier such as silica gel must be packed again through gas permeability material non-woven fabrics or paper etc., can not directly and the packing of product of placing drier be needed to fit tightly, and the situation that packed silica-gel desiccant drops and break can be produced, there is the possibility causing secondary pollution product; And conventional pouch silica-gel desiccant put procedure can only manually be placed, continuous and automatic can not be realized and throw in, thus limit its Automation Industry process.
Patent application CN03135587.0 discloses a kind of composite type zeolite drier, take epidesmine as primary raw material, with the kaolin in clay mineral, or montmorillonite, or sepiolite etc., and with the starch grafted acrylate in water-absorbing resins, or SPA, or the macromolecular material such as starch graft acrylamide, mix in the ratio of 75 ~ 85: 10 ~ 15: 5 ~ 10 (in gross weights for 100) and make base-material, add calcite or the coal dust of 0 ~ 5% of base-material weight again, or flyash is as pore creating material, with add the waterglass of base-material weight 15 ~ 30% or epoxy resin as after binding agent together Homogeneous phase mixing, extruded, after feeding baker dries moisture content, or namely cooling of coming out of the stove drops into or acid, or alkali, or soak in sodium salt or ammonium salt solution and implement modification, cleaning, dry, or high-temperature baking is carried out in intensification again, i.e. obtained zeolite drier.
The shortcoming that above-mentioned technology contents exists is: its drier must carry out packing again with Breathable nonwoven or paper, just can be used in various moistureproof field; And space injected volume is few, gross absorption will certainly be lower.
Summary of the invention
In order to solve problems of the prior art, an object of the present invention is to provide a kind of flake plastic silicon oxide drier.
Another object of the present invention is to, a kind of preparation method of described flake plastic silicon oxide drier is provided.
Flake plastic silicon oxide drier provided by the invention, comprises the component of following weight percentage: silica 50 ~ 90%, high molecule plastic 10 ~ 50%, auxiliary material 0 ~ 5%.
Wherein, described silica is powder, i.e. silicon dioxide powder, is also silica white.
Further, auxiliary material preferably 1 ~ 5%.
Above-mentioned percentage composition is the percentage that the weight of each component accounts for all components (silica, high molecule plastic and auxiliary material etc.) gross weight.
Wherein, described silica is selected from: one or both in pore (A type) and gross porosity (Type B) silica gel, and its wettability power is higher.
Wherein, described high molecule plastic is selected from: low density polyethylene (LDPE) (LDPE), high density polyethylene (HDPE) (HDPE), polypropylene (PP), polystyrene (PS), PLA (PLA), hydroxypropyl methylcellulose (HPMC) and carboxymethyl cellulose (CMC) etc. one or more, one or both of preferred HDPE and CMC.High molecule plastic is Powdered.Add high molecule plastic and mainly play dust-proof effect.
Wherein, described auxiliary material is: stearate or stearic acic derivative etc., preferred calcium stearate or dolomol.Add auxiliary material and can play the effect improving surfacing and moisture pick-up properties.
The preparation method of flake plastic silicon oxide drier provided by the invention, comprises the following steps:
1) by silica and high molecule plastic, auxiliary material mixes mutually according to described ratio;
2) by mixed component briquet, block is obtained;
3) described block drying is obtained flake plastic silicon oxide drier.
The preparation method of flake plastic silicon oxide drier provided by the invention, further, comprises the following steps:
1) mixing of materials: by silica and high molecule plastic, auxiliary material fully mixes according to described ratio;
2) briquet: by mixed for upper step material through type mechanical tableting machine, heat briquet in the mould of dimension size, obtain block;
3) dry: described block is obtained flake plastic silicon oxide drier through vacuum drying.
Wherein, step 2) in, heating-up temperature is 60 ~ 120 DEG C.
Flake plastic silicon oxide drier of the present invention can be applicable to various medicine, health products, medicine equipment, electronic material, the drier applications such as accurate mechanical equipment.
Flake plastic silicon oxide drier provided by the invention, adopt silica and high molecule plastic mixing, adopting mechanical compression molding technique to make Related product, is the one of moisture protected dry drying prescription.
That is, the present invention adopts the silica with moisture absorbing, and high molecule plastic is binding agent, and silica (especially silicon dioxide powder) is primary sorbent etc., through mixing, suppress in a certain size sized mold through type mechanical tableting machine and form massive dryer.
The main feature of flake plastic silicon oxide drier of the present invention is:
One, its profile can be consistent with the space size placing drier, and be closely linked with the packing of product, saves the useful space greatly, and can realize continuous and automatic operation;
Two, renewable after using and be reused;
Three, packed can directly use need not be carried out;
Four, adopt raw material all harmless, safe and reliable; Environmentally safe, odorless, tasteless, non-corrosiveness.
In a word, flake plastic silicon oxide drier of the present invention, more can be consistent with the space of placing drier compared with prior art (similar packed silica-gel desiccant), can not carry out packing direct use, safety and environmental protection; Further, the amount of placing drier in space improves very large, and under same volume, hygroscopic capacity is higher, can realize automated production, has huge application prospect and economic worth.
Detailed description of the invention
Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
Unit of the present invention " part " can refer to: jin, kilogram, gram, kilogram, ton ... etc. unit of weight, determine according to practical condition.
The routine that the NM operation of the present invention and technological parameter are this area is selected, the conventional material of material used also for can commercially obtain.
The specification of the high density polyethylene (HDPE) that the present invention is used is: the following powder of 200 order.
Embodiment 1
The first step: mixing of materials
By A type silica white 3 parts and high density polyethylene (HDPE) (HDPE) molding powder 1 part, carboxymethyl cellulose (CMC) 0.1 part is mixing fully.
Second step: compressing
By mixed for upper step material through type mechanical tableting machine, in the mould of dimension size heat (temperature is 60 ~ 100 DEG C), briquet, obtain block;
3rd step: dry
Above-mentioned block is obtained flake plastic silicon oxide drier through vacuum drying.
Embodiment 2
The first step: mixing of materials
By Type B silica white 5 parts and high density polyethylene (HDPE) (HDPE) molding powder 5 parts, calcium stearate 0.1 part is mixing fully.
Second step: compressing
By mixed for upper step material through type mechanical tableting machine, in the mould of dimension size heat (temperature is 80 ~ 110 DEG C), briquet, obtain block;
3rd step: dry
Above-mentioned block is obtained flake plastic silicon oxide drier through vacuum drying.
Embodiment 3
Other are with embodiment 2, and difference is:
The first step: mixing of materials
By A type silica white 6 parts, Type B silica white 2.5 parts and carboxymethyl cellulose (CMC) 1 part, calcium stearate 0.5 part is mixing fully.
Experimental example
Adopt the conventional method of this area to carry out performance test to the drier (packed silica-gel desiccant) that flake plastic silicon oxide drier of the present invention (product obtained by embodiment 2) and existing market are sold, contrast as follows:
As can be seen from the above table: flake plastic silicon oxide drier of the present invention, more can be consistent with the space of placing drier compared with existing packed silica-gel desiccant; Further, the amount of placing drier in space improves very large, and total hygroscopic capacity has great raising.
Other embodiments and embodiment 2 effect similar, but be excellent with embodiment 2.
Although above the present invention is described in detail with a general description of the specific embodiments, on basis of the present invention, can make some modifications or improvements it, this will be apparent to those skilled in the art.Therefore, these modifications or improvements without departing from theon the basis of the spirit of the present invention, all belong to the scope of protection of present invention.
Claims (4)
1. a flake plastic silicon oxide drier, is made up of the component of following weight percentage: silica 50 ~ 90%, high molecule plastic 10 ~ 50%, auxiliary material 0 ~ 5%; Described silica is selected from: one or both in pore and silochrom; Described high molecule plastic is selected from: low density polyethylene (LDPE), high density polyethylene (HDPE), polypropylene, polystyrene, PLA, hydroxypropyl methylcellulose and carboxymethyl cellulose one or more; Described auxiliary material is: stearate or stearic acic derivative;
This drier is prepared by following methods:
1) mixing of materials: by silica and high molecule plastic, auxiliary material fully mixes according to described ratio;
2) briquet: by mixed for upper step material through type mechanical tableting machine, heat briquet in the mould of dimension size, obtain block;
3) dry: described block is obtained flake plastic silicon oxide drier through vacuum drying;
Step 2) in, described heating-up temperature is 60 ~ 120 DEG C.
2. flake plastic silicon oxide drier according to claim 1, is characterized in that, described auxiliary material is 1 ~ 5%.
3. flake plastic silicon oxide drier according to claim 1, is characterized in that, described stearate is calcium stearate or dolomol.
4. the preparation method of the flake plastic silicon oxide drier described in claims 1 to 3 any one, comprises the following steps:
1) mixing of materials: by silica and high molecule plastic, auxiliary material fully mixes according to described ratio;
2) briquet: by mixed for upper step material through type mechanical tableting machine, heat briquet in the mould of dimension size, obtain block;
3) dry: described block is obtained flake plastic silicon oxide drier through vacuum drying;
Step 2) in, heating-up temperature is 60 ~ 120 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310428967.5A CN103506091B (en) | 2013-09-18 | 2013-09-18 | Flake plastic silicon oxide drying agent and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310428967.5A CN103506091B (en) | 2013-09-18 | 2013-09-18 | Flake plastic silicon oxide drying agent and preparation method thereof |
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| CN103506091A CN103506091A (en) | 2014-01-15 |
| CN103506091B true CN103506091B (en) | 2015-06-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106238012A (en) * | 2016-08-11 | 2016-12-21 | 昆山威胜干燥剂有限公司 | Silicon dioxide massive dryer and preparation method thereof |
| CN107938426A (en) * | 2017-11-21 | 2018-04-20 | 王小艳 | Dried flower protects color drying plate preparation method |
| CN107930603A (en) * | 2017-11-21 | 2018-04-20 | 王小艳 | A kind of dried flower protects drier used and preparation method thereof in prepared by color drying plate |
| CN109452353A (en) * | 2018-09-05 | 2019-03-12 | 徐州爱迪食品有限公司 | A kind of dried fruit desiccant |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1541759A (en) * | 2003-04-30 | 2004-11-03 | 李沧海 | Desiccant preparation and production method thereof |
| CN101229508A (en) * | 2007-10-18 | 2008-07-30 | 周健 | Macromolecule radical hygroscopic material and preparing method thereof |
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| US8853289B2 (en) * | 2010-05-18 | 2014-10-07 | Scott C. Smith | Foam compositions for selective recovery of oil spills and other applications |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1541759A (en) * | 2003-04-30 | 2004-11-03 | 李沧海 | Desiccant preparation and production method thereof |
| CN101229508A (en) * | 2007-10-18 | 2008-07-30 | 周健 | Macromolecule radical hygroscopic material and preparing method thereof |
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