CN1034280C - Antifogging dropping agent - Google Patents
Antifogging dropping agent Download PDFInfo
- Publication number
- CN1034280C CN1034280C CN91107921A CN91107921A CN1034280C CN 1034280 C CN1034280 C CN 1034280C CN 91107921 A CN91107921 A CN 91107921A CN 91107921 A CN91107921 A CN 91107921A CN 1034280 C CN1034280 C CN 1034280C
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- China
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- component
- preparation
- acid
- antifogging
- fatty acid
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Abstract
The present invention relates to an antifogging dropping agent for a plastic agricultural film and a preparation method thereof. The preparation method comprises the following steps: preparing a plurality of fatty acid ester surfactants, crosslinking and compounding at least three fatty acid ester surfactants, then carrying out adsorption treatment by an adsorbent under certain conditions, etc. The antifogging dropping agent prepared by method of the present invention has high mixing property with various kinds of resin and high processability, improves the non-drop effect and the non-drop period of a resin film, overcomes the problem of localized non-drop effect and is suitable for plastic agricultural films of polyvinyl chloride (PVC) and polyethylene (PE) and products of polyolefine resin.
Description
The present invention relates to a kind of plastic film with antifogging agent and preparation method thereof, comprise the preparation of several fatty acid ester tensio-active agents, and the fatty acid ester tensio-active agent is crosslinked compound more than two kinds, then under certain condition with steps such as adsorbents adsorb processing.Belong to additives for plastics and technology of preparing thereof.
In plastic film, add certain tensio-active agent, improve film tension, so that be condensate in the moisture film that the water smoke on surface forms homogeneous transparent, go down along surface current, thereby improve the film temperature of shed, accelerate crop growth, solved water droplet simultaneously and to crop, septic problem has taken place.But present antifogging agent composition is single, and is poor with the mixing of polyethylene (PE) resin.General adding coupling agent, solvent, filler are made masterbatch, and being used for producing does not have the agricultural polyethylene film of dripping, and the masterbatch add-on is big, and the film of producing does not reach design requirements.On the other hand, now use antifogging agent the roll banding phenomenon often to occur separating out in polyvinyl chloride (PVC) film production, influence is produced and quality product, and the nothing of film to drip the effect validity period shorter, under field conditions (factors), very fast appearance does not have deficiencies such as the effect reduction of dripping, localization.
At the deficiency of above-mentioned antifogging agent, it is good to the invention provides a kind of and various resin mixings, and processibility is good, improves film and does not have the effect of dripping and do not have the phase of dripping, and no localization problem is improved antifogging agent of film performance and preparation method thereof.
Principle of the present invention be with different lipid acid and Fatty Alcohol(C12-C14 and C12-C18) in the presence of catalyzer, esterification fat takes place under differing temps should, generate the tensio-active agent of different oleophilic hydrophil balance values (HLB value), then, they are mixed at a certain temperature crosslinked, form and a kind ofly have synergy and omnidistance do not have an effective ingredient main body of dripping effect, then at a certain temperature, handle with the adsorbents adsorb that chemical stability is strong, make it enter the sorbent material duct, homodisperse has the effective constituent main body.The one, owing to advanced people's sorbent material duct and retarding surface deenergized period, improve and do not have the effect phase of dripping.The 2nd, the molecular resin chain enters the sorbent material duct in the plastic working process, makes between tensio-active agent and the resin to link up by this " bridge ", thereby with polyolefin resin fabulous mixing performance is arranged.Moreover, because sorbent material has porous and high surface area, thereby itself has extremely strong water-absorbent, and can join " knot " resin on the other hand, can be considered has good hydrophilic group and oleophilic group, itself also is the surface of good promoting agent.Because the sorbent material granularity is little, add-on is few, so can not influence the transmittance and the intensity of resin.
The main body effective ingredient of antifogging agent mainly contains following several among the present invention:
A: the compound sorbitol anhydride cetylate of sorbitan tristearate; B: polyglycerol fatty acid ester; C: sorbitan oleate; D: pentaerythritol fatty ester.
A component preparation method is: the sodium hydroxide that adds its quality 1-2% in sorbyl alcohol, vacuum hydro-extraction cyclisation under 70-100 ℃ of condition, then with etc. mole ratio add stearic acid and palmitinic acid, 180-210 ℃ of following esterification, when acid number drops to less than 15mgkOH/g, promptly get the A component.
B component preparation method is: add C in polyglycerol
10-C
19Lipid acid in 190-230 ℃ of following esterification, when acid number during less than 5mgkOH/g, is terminal point.
C, D component adopt the commercial goods.
Sorbent material of the present invention is a modification infusorial earth, contains SiO
2Amount is 80-95%, Fe
2O
3Content is less than 2%, and its preparation method is: diatomite is through washing, selected, dry, adding fusing assistant Na
2CO
3Under 800-1050 ℃, fuse, then with 5% salt acid elution, washing afterwards, alkali neutralization, after washing pH value again and being 7-8, drying, pulverizing, classification, collection 0-15 μ m granularity section product promptly gets the big surface of porous, low density sorbent material.
The each component of antifogging agent of the present invention (weight) is than being: A component 10-30%, B component 10-30%, C component 10-20%, D component 10-20%, sorbent material 20-50%.
Concrete technical characterictic of the present invention; show that also antifogging agent main body effective ingredient is two or more at least, its ratio can be adjusted within the specific limits, at 80-150 ℃; under the nitrogen protection; the stirring mixing is crosslinked, and the time is no less than 20 minutes, adds diatomite adsorbant then; 90-150 ℃ of following mixing and absorption; after treating that absorption is finished,, promptly obtain product of the present invention through granulation.
Embodiment 1, goes out A, B component and sorbent material according to method for preparing, A component 20%; B component 10%, C component 20%, D component 20%; sorbent material modification infusorial earth 30% adds A, B, C, D component in the airtight heating container of people according to the above ratio, logical nitrogen protection; be warmed up to 90 ℃, constant temperature also stirred 50 minutes, added diatomite adsorbant then; keep 90 ℃ of temperature; constant temperature also stirred 60 minutes, and the discharging granulation is finished product.
Embodiment 2, prepare A, B component and sorbent material with embodiment 1 method, A component 25%; B component 10%, C component 10%, D component 10%; sorbent material 45% adds A, B, C, D component in the airtight heating container according to the above ratio, logical nitrogen protection; be warming up to 110 ℃, constant temperature also stirred 30 minutes, added sorbent material then; 90 ℃ of following constant temperature 50 minutes; stir simultaneously, discharging granulation after absorption is finished promptly gets product of the present invention.
Claims (1)
1, a kind of plastic film preparation method of antifogging agent, the preparation method who comprises the compound sorbitol anhydride cetylate of A component sorbitan tristearate is: the sodium hydroxide that adds its quality 1-2% in sorbyl alcohol, vacuum hydro-extraction cyclisation under 70-100 ℃ of condition, then with etc. mole ratio add stearic acid and palmitinic acid, 180-210 ℃ of following esterification, drop to less than 15mgKOH/g to acid number; The preparation method of B component polyglycerol fatty acid ester is: in polyglycerol, add C10-C19 lipid acid, in 190-230 ℃ of following esterification, to acid number less than 5mgKOH/g; With the compound sorbitol anhydride cetylate of A component sorbitan tristearate, B component polyglycerol fatty acid ester, C component sorbitan oleate, D component pentaerythritol fatty ester at 80-150 ℃, under the nitrogen protection, the stirring mixing is crosslinked, time is no less than 20 minutes, add 0-15 μ m granularity diatomite adsorbant then, in 90-150 ℃ of following mixing and absorption, granulation; Wherein each component consumption weight percent is: A component 10-30%, B component 10-30%, C component 10-20%, D component 10-20%, sorbent material 20-50%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91107921A CN1034280C (en) | 1991-11-18 | 1991-11-18 | Antifogging dropping agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91107921A CN1034280C (en) | 1991-11-18 | 1991-11-18 | Antifogging dropping agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1072425A CN1072425A (en) | 1993-05-26 |
| CN1034280C true CN1034280C (en) | 1997-03-19 |
Family
ID=4908924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN91107921A Expired - Fee Related CN1034280C (en) | 1991-11-18 | 1991-11-18 | Antifogging dropping agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1034280C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102627813A (en) * | 2012-03-20 | 2012-08-08 | 绍兴宏润消防器材有限公司 | Antifog paddy rice sprout cultivation film |
| CN104497352B (en) * | 2014-11-28 | 2017-10-27 | 广州嘉德乐生化科技有限公司 | A kind of antifog drip composition containing polyol fatty acid ester and preparation method thereof |
| CN105544197B (en) * | 2015-12-18 | 2017-11-24 | 无锡市豪雅微纤科技有限公司 | Anti-fog cleaning cloth |
| CN108752648A (en) * | 2018-06-01 | 2018-11-06 | 安徽永豪日用品有限公司 | A kind of antifog fresh-keeping membrane preparation method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA222759A (en) * | 1922-08-22 | A. Bigger Leroy | Direction indicator |
-
1991
- 1991-11-18 CN CN91107921A patent/CN1034280C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA222759A (en) * | 1922-08-22 | A. Bigger Leroy | Direction indicator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1072425A (en) | 1993-05-26 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Yin Guangtao Document name: Notification of Termination of Patent Right |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |