CN1076163C - Gas phase fixed mouldproof and mothproof agent and preparation thereof - Google Patents
Gas phase fixed mouldproof and mothproof agent and preparation thereof Download PDFInfo
- Publication number
- CN1076163C CN1076163C CN98115792A CN98115792A CN1076163C CN 1076163 C CN1076163 C CN 1076163C CN 98115792 A CN98115792 A CN 98115792A CN 98115792 A CN98115792 A CN 98115792A CN 1076163 C CN1076163 C CN 1076163C
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- China
- Prior art keywords
- preventing
- silica gel
- moth
- dimethyl fumarate
- mildew
- Prior art date
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- Expired - Fee Related
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- Agricultural Chemicals And Associated Chemicals (AREA)
- Drying Of Gases (AREA)
Abstract
The present invention relates to a mildew preventing and moth preventing agent and a preparation method thereof. The preparation method comprises: using silica gel as a carrier, adsorbing dimethyl fumarate on the silica gel through heat treatment, and then packaging the silica gel with the dimethyl fumarate by ventilation paper to obtain the mildew preventing and moth preventing agent. The mildew preventing and moth preventing agent of the present invention has the characteristic of rapid sublimation and does not need to be added to objects but needs to be packaged together with the objects to form mildew preventing and moth preventing microenvironment around the objects, and mildew preventing and moth preventing effects can not be influenced by the pH valve of the objects, environment temperature and humidity. The mildew preventing and moth preventing agent of the present invention has the advantages of simple preparation, low cost, convenient use and good security, and is suitable for the mildew prevention and the moth prevention of leather products, bamboo-wood handicraft articles, optical instruments, food, tea, etc.
Description
The present invention relates to a kind of anti-mould and moth-proof agent and preparation method thereof.
At present, have the dimethyl fumarate mould inhibitor of distillation characteristic, be used to the anti-mould and anti-moth of article such as feed, grain, for example by patent CN-1087471A, mildew inhibitor for feed that technology such as CN-1122186A make and compound grain anti-mould and moth-proof agent.These products all are directly to add in the article with powder-form, thereby have residual.Though patent CN-1102083A.CN-1134783A has proposed to utilize the distillation characteristic of mixtures such as dimethyl fumarate, need not it is added in the article, only need to pack with article, what this series products had is powdery, should not pack with air-permeable paper, easily lets out powder; What have is lenticular, can pack with air-permeable paper, but distillation slowly, and not exclusively, cost is higher.Because the existence of these shortcomings, dimethyl fumarate is not widely used in article such as leather and fur products, artistic bamboo-wood product, optical instrument, food, fruit and vegetable, tealeaves as yet.
The object of the present invention is to provide a kind of preparation simple, cost is low, and is easy to use and need not to add to gas phase fixed mouldproof and mothproof agent in the article.
The objective of the invention is to reach by following measure.
A kind of gas phase fixed mouldproof and mothproof agent, it is by dimethyl fumarate: H
3C-O-CO-HC=CH-CO-O-CH
3Form with silica gel, each weight percentages of components is: dimethyl fumarate 5-15%, silica gel 85-95%.
The preparation process of gas phase fixed mouldproof and mothproof agent and process conditions thereof:
By weight percentage: dimethyl fumarate 5-15%, but silica gel 85-95% drops in the closed processes device, under 60-120 ℃ temperature, with dimethyl fumarate distillation gasification fully fast, then the cooling dimethyl fumarate is adsorbed on the silica gel, at room temperature with air-permeable paper pack product.
The present invention compared with prior art has the following advantages:
The present invention has all characteristics of prior art, and is promptly efficient, is not subjected to article PH, the influence of environmental temperature and humidity, and toxicity is low, and safety is good, and properties of product are stable, do not have any blackening failure phenomenon, and skin is not had the redness allergy of scratching where it itches substantially.Have the following advantages simultaneously:
(1) immobilization characteristic.
The present invention compared with prior art, biggest advantage is to have the immobilization characteristic, promptly utilize the distillation characteristic of dimethyl fumarate, with silica gel is carrier, adopt thermal treatment and cooling processing that dimethyl fumarate is fixed on the silica gel with the absorption of microcrystal form, be convenient to packing and use no powder leakage phenomenon.
(2) preparation is simple, and cost is low.
It is carrier that the present invention adopts cheap silica gel, and make full use of the specific surface of silica gel, and the dimethyl fumarate rate of sublimation is accelerated, form the anti-mould and anti-moth microenvironment at the article surrounding space rapidly, thereby reduced the constituent content of dimethyl fumarate in anti-mould and moth-proof agent, reduced product cost.
(3) easy to use, noresidue.
The present invention is extremely easy to use, only need pack with article to get final product, and need not to add in the article and go, thereby noresidue.
(4) effect is remarkable, and gas defence, moistureproof double action are arranged.
The present invention utilizes the big characteristic of silica gel specific surface, and the rate of sublimation of dimethyl fumarate is accelerated, and under same environment, anti-mold effect of the present invention is more remarkable, and the present invention simultaneously utilizes the characteristic of silica gel to have moisture-proof role.
Below be embodiments of the invention.
Embodiment 1
Get percentage by weight and be 6% dimethyl fumarate, but in the closed processes device that 94% silica gel input can be rolled, under 100 ℃ temperature, with dimethyl fumarate distillation gasification fully fast, cooling is adsorbed on the silica gel dimethyl fumarate then, at room temperature is packaged into the product of different size by weight with air-permeable paper.
Embodiment 2
Get 1 kilogram of dimethyl fumarate, but in the closed processes device that 9 kilograms of inputs of silica gel can be rolled, under 100 ℃ temperature, with dimethyl fumarate distillation gasification fully fast, cooling is adsorbed on the silica gel dimethyl fumarate then, at room temperature is packaged into the product of different size by weight with air-permeable paper.
Claims (2)
1. a gas phase fixed mouldproof and mothproof agent is characterized in that it is by dimethyl fumarate: H
3C-O-CO-HC=CH-CO-O-CH
3Form with silica gel, each weight percentages of components is: dimethyl fumarate 5-15%, silica gel 85-95%.
2. method for preparing the described gas phase fixed mouldproof and mothproof agent of claim 1, it is characterized in that by weight percentage: fumaric acid dioctyl phthalate 5-15%, silica gel 85-95% is knocked down in the closed processes device, under 60-120 ℃ temperature, with dimethyl fumarate distillation gasification fully fast, cooling makes the dimethyl fumarate absorption on silica gel then, at room temperature packs with air-permeable paper and promptly gets product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98115792A CN1076163C (en) | 1998-07-10 | 1998-07-10 | Gas phase fixed mouldproof and mothproof agent and preparation thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98115792A CN1076163C (en) | 1998-07-10 | 1998-07-10 | Gas phase fixed mouldproof and mothproof agent and preparation thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1209950A CN1209950A (en) | 1999-03-10 |
| CN1076163C true CN1076163C (en) | 2001-12-19 |
Family
ID=5224752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98115792A Expired - Fee Related CN1076163C (en) | 1998-07-10 | 1998-07-10 | Gas phase fixed mouldproof and mothproof agent and preparation thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1076163C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106614660A (en) * | 2016-12-23 | 2017-05-10 | 常熟市胜阳干燥剂贸易有限公司 | High-efficiency mould-proof material for leather |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56151782A (en) * | 1980-04-26 | 1981-11-24 | Idemitsu Kosan Co Ltd | Gradually releasing composition and its preparation |
| CN1087471A (en) * | 1993-10-13 | 1994-06-08 | 蔡玮 | Midew preventive for feed |
| CN1102086A (en) * | 1993-02-22 | 1995-05-03 | 王安 | Portable sanitary chopsticks |
| CN1122186A (en) * | 1994-07-09 | 1996-05-15 | 郑州工学院 | Efficient compound mildewproof insecticide for grains |
| CN1134783A (en) * | 1996-01-09 | 1996-11-06 | 宁正祥 | Composite gaseous agent for mildew-resistant and morm-proof, and prepn. method thereof |
-
1998
- 1998-07-10 CN CN98115792A patent/CN1076163C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56151782A (en) * | 1980-04-26 | 1981-11-24 | Idemitsu Kosan Co Ltd | Gradually releasing composition and its preparation |
| CN1102086A (en) * | 1993-02-22 | 1995-05-03 | 王安 | Portable sanitary chopsticks |
| CN1087471A (en) * | 1993-10-13 | 1994-06-08 | 蔡玮 | Midew preventive for feed |
| CN1122186A (en) * | 1994-07-09 | 1996-05-15 | 郑州工学院 | Efficient compound mildewproof insecticide for grains |
| CN1134783A (en) * | 1996-01-09 | 1996-11-06 | 宁正祥 | Composite gaseous agent for mildew-resistant and morm-proof, and prepn. method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1209950A (en) | 1999-03-10 |
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