CN103642424A - Production technology for composite rubber - Google Patents
Production technology for composite rubber Download PDFInfo
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- CN103642424A CN103642424A CN201310453702.0A CN201310453702A CN103642424A CN 103642424 A CN103642424 A CN 103642424A CN 201310453702 A CN201310453702 A CN 201310453702A CN 103642424 A CN103642424 A CN 103642424A
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Abstract
The invention discloses a production technology for composite rubber. The steps of the technology are as follows: first, raw materials are selected, by weight, 50% of phenolic resins, 5% of sodium benzoate, 10% of emulsifiers, 10% of glacial acetic acid and 25% of initiating agents are selected as raw materials respectively, wherein the emulsifiers are a mixture of sodium secondary-sulpho sulfonate and disodium sulpho sulfosuccinate monoesters, and the initiating agents are a mixed oxidation system of ammonium persulphate and tert-butyl hydrogen peroxide; second, dissolving is carried out; third, crosslinking is carried out; fourth, strengthening is carried out and fifth, molding is carried out. The production technology is reasonable and concise, shortens technological processes greatly, lowers production cost, and raises the yield. The produced composite rubber has good storability, can be stored for a long time, and has high viscidity, good compression resistance and high temperature resistance.
Description
Technical field
The present invention relates to wrapping material field, particularly relate to a kind of production technique of composite gum.
Background technology
Along with the raising of rapid economic development and people's living standard, to microwave food, the demand of the ready-to-eat such as snackfoods and frozen product will constantly increase, this will directly drive the demand of relevant food packing, Chinese food and wrapping mechanism industry will maintain positive growth in a rapid lapse of time from now on, being widely used of wrapping material be unable to do without the use of packing glue, composite gum is a wherein indispensable part, how to produce a kind of glue that adapts to packing demand and become the focus that people pay close attention to, application number is that CN201110307541.5 discloses a kind of high efficiency composition glue, and it is by natural polymer rubber powder, thickening material, silicon rubber, vinyl acetate between to for plastic, nitro-thinner forms, and it is high that tackiness agent of the present invention has binding property, waterproof, grease proofing, pollution-free, the advantage such as "dead", can be widely used in pipeline connection, box sealing, bonding and the material of construction of part in conjunction with etc. field, the invention belongs to resource-conserving product, with low cost, can mix with other raw materials simultaneously and use, solve current adhesive product function singleness, bonding scope is little, the problems such as effect is undesirable, but this composite gum storage characteristics is bad, is difficult to long-time preservation, and viscosity is not high, and compressive property is poor, can not be high temperature resistant.
Summary of the invention
For overcoming the deficiency in prior art, the object of the invention be to provide a kind of can standing storage, the composite gum that high temperature resistant, viscosity is high and tensile property is good.
For realizing object of the present invention, technical scheme of the present invention is as follows:
A production technique for composite gum, its processing step is as follows:
(1) select raw material: by weight percentage, selecting respectively resol 50%, sodium benzoate 5%, emulsifying agent 10%, Glacial acetic acid 10% and initiator 25% is raw material, wherein emulsifying agent is the mixture of secondary sulfo group sodium sulfonate and sulfosuccinic acid monoesters disodium salt, and described initiator is the mixed oxidization system of ammonium persulphate and t-butyl hydrogen peroxide;
(2) dissolve: the raw material that step (1) is selected is placed in dissolving vessel, adds deionized water to dissolve, stir, the pH that controls lysate is 6.8 ~ 7.2;
(3) crosslinked: in lysate, add tackiness agent, be warming up to 60 ~ 80 ℃, low rate mixing, described tackiness agent is the mixture of Walocel MT 20.000PV and flour;
(4) strengthening: add iron powder in the mixed solution of step (3), be warming up to 200 ~ 300 ℃, be uniformly mixed, described iron powder add-on is 1 ~ 2% of mixed solution quality;
(5) moulding: the mixed solution obtaining in step (4) is put into agravic totally-enclosed stirrer strong stirring 30 ~ 40min, and controlling temperature is 400 ~ 450 ℃, then, reduces gradually and stirs built-in temperature to room temperature, standing moulding;
The production technique of above-mentioned a kind of composite gum, wherein, in described step (1), described secondary sulfo group sodium sulfonate and sulfosuccinic acid monoesters disodium salt mass ratio are 1:1.
The production technique of above-mentioned a kind of composite gum, wherein, in described step (3), described tackiness agent is 10% of mixed solution quality.
The production technique of above-mentioned a kind of composite gum, wherein, in described step (3), described Walocel MT 20.000PV is 1:2 with flour quality ratio.
Beneficial effect: the present invention is by selecting raw material, dissolve, crosslinked, the composite gum storage characteristics that strengthening and the large step of moulding five are produced is good, can preserve for a long time, viscosity is high, and compressive property is good, high temperature resistant, in material choice, sodium benzoate is preservatives, can make composite gum preserve for a long time, Glacial acetic acid regulates pH in neutral range, improve the output of composite gum, the viscosity that the tackiness agent adding in cross-linking step has because of itself, improved the viscosity of composite gum, inorganic iron powder and reactive modified phenolic resin in strengthening step, produce inorganic high-temperature resistant structure, thereby improved the resistance to elevated temperatures of composite gum, technique is reasonable, succinctly, shortened process greatly, reduced production cost, improved output.
Embodiment
For technique means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with embodiment, further set forth the present invention.
embodiment 1:
The production technique of a kind of composite gum of the present embodiment, its processing step is as follows:
(1) select raw material: by weight percentage, selecting respectively resol 50%, sodium benzoate 5%, emulsifying agent 10%, Glacial acetic acid 10% and initiator 25% is raw material, wherein emulsifying agent is the mixture of secondary sulfo group sodium sulfonate and sulfosuccinic acid monoesters disodium salt, described secondary sulfo group sodium sulfonate and sulfosuccinic acid monoesters disodium salt mass ratio are 1:1, and described initiator is the mixed oxidization system of ammonium persulphate and t-butyl hydrogen peroxide;
(2) dissolve: the raw material that step (1) is selected is placed in dissolving vessel, adds deionized water to dissolve, stir, the pH that controls lysate is ~ 7;
(3) crosslinked: in lysate, add tackiness agent, be warming up to 70 ℃, low rate mixing, described tackiness agent is the mixture of Walocel MT 20.000PV and flour, and described tackiness agent is 10% of mixed solution quality, and described Walocel MT 20.000PV is 1:2 with flour quality ratio;
(4) strengthening: add iron powder in the mixed solution of step (3), be warming up to 250 ℃, be uniformly mixed, described iron powder add-on is 1.5% of mixed solution quality;
(5) moulding: the mixed solution obtaining in step (4) is put into agravic totally-enclosed stirrer strong stirring 35min, and controlling temperature is 425 ℃, then, reduces gradually and stirs built-in temperature to room temperature, standing moulding;
embodiment 2:all the other are identical with described embodiment 1, and difference is, the pH that controls lysate in described step (2) is 6.8, in described step (3), is warming up to 60 ℃, in described step (4), is warming up to 200 ℃, and described iron powder add-on is 1% of mixed solution quality.
embodiment 3:all the other are identical with described embodiment 1, and difference is, the pH that controls lysate in described step (2) is 7.2, in described step (3), is warming up to 80 ℃, in described step (4), is warming up to 300 ℃, and described iron powder add-on is 2% of mixed solution quality.
In above-mentioned three kinds of embodiment, the tackiness agent of interpolation makes the viscosity of composite gum improve 30%, the experiment proved that, the iron powder adding is 1.5 o'clock of mixed solution quality, and heat resistance is best, and agravic stirring makes the soft elasticity of composite gum can be good, and tensile property has promoted 20%.
Known in practical application, by selecting raw material, dissolve, crosslinked, the composite gum storage characteristics that strengthening and the large step of moulding five are produced is good, can preserve for a long time, viscosity is high, and compressive property is good, high temperature resistant, in material choice, sodium benzoate is preservatives, can make composite gum preserve for a long time, Glacial acetic acid regulates pH in neutral range, improve the output of composite gum, the viscosity that the tackiness agent adding in cross-linking step has because of itself, improved the viscosity of composite gum, inorganic iron powder and reactive modified phenolic resin in strengthening step, produce inorganic high-temperature resistant structure, thereby improved the resistance to elevated temperatures of composite gum, technique is reasonable, succinctly, shortened process greatly, reduced production cost, improved output.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes specification sheets of the present invention to do, or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (4)
1. a production technique for composite gum, is characterized in that, its processing step is as follows:
(1) select raw material: by weight percentage, selecting respectively resol 50%, sodium benzoate 5%, emulsifying agent 10%, Glacial acetic acid 10% and initiator 25% is raw material, wherein emulsifying agent is the mixture of secondary sulfo group sodium sulfonate and sulfosuccinic acid monoesters disodium salt, and described initiator is the mixed oxidization system of ammonium persulphate and t-butyl hydrogen peroxide;
(2) dissolve: the raw material that step (1) is selected is placed in dissolving vessel, adds deionized water to dissolve, stir, the pH that controls lysate is 6.8 ~ 7.2;
(3) crosslinked: in lysate, add tackiness agent, be warming up to 60 ~ 80 ℃, low rate mixing, described tackiness agent is the mixture of Walocel MT 20.000PV and flour;
(4) strengthening: add iron powder in the mixed solution of step (3), be warming up to 200 ~ 300 ℃, be uniformly mixed, described iron powder add-on is 1 ~ 2% of mixed solution quality;
(5) moulding: the mixed solution obtaining in step (4) is put into agravic totally-enclosed stirrer strong stirring 30 ~ 40min, and controlling temperature is 400 ~ 450 ℃, then, reduces gradually and stirs built-in temperature to room temperature, standing moulding.
2. the production technique of a kind of composite gum according to claim 1, is characterized in that, in described step (1), described secondary sulfo group sodium sulfonate and sulfosuccinic acid monoesters disodium salt mass ratio are 1:1.
3. the production technique of a kind of composite gum according to claim 1, is characterized in that, in described step (3), described tackiness agent is 10% of mixed solution quality.
4. the production technique of a kind of composite gum according to claim 1, is characterized in that, in described step (3), described Walocel MT 20.000PV is 1:2 with flour quality ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310453702.0A CN103642424A (en) | 2013-09-29 | 2013-09-29 | Production technology for composite rubber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310453702.0A CN103642424A (en) | 2013-09-29 | 2013-09-29 | Production technology for composite rubber |
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| CN103642424A true CN103642424A (en) | 2014-03-19 |
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| CN201310453702.0A Pending CN103642424A (en) | 2013-09-29 | 2013-09-29 | Production technology for composite rubber |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104164198A (en) * | 2014-06-30 | 2014-11-26 | 安徽神舟飞船胶业有限公司 | Methyl cellulose-phenolic resin mixed adhesive formula and preparing process thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101812276A (en) * | 2009-02-24 | 2010-08-25 | 聂雨淼 | Composite adhesive for novel cement packaging bag |
| CN102399522A (en) * | 2011-10-09 | 2012-04-04 | 中国科学院化学研究所 | Organic / inorganic composite adhesive |
| CN102898982A (en) * | 2012-10-30 | 2013-01-30 | 蚌埠市比优特包装印务有限责任公司 | High-strength sealing glue for paper packaging box |
-
2013
- 2013-09-29 CN CN201310453702.0A patent/CN103642424A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101812276A (en) * | 2009-02-24 | 2010-08-25 | 聂雨淼 | Composite adhesive for novel cement packaging bag |
| CN102399522A (en) * | 2011-10-09 | 2012-04-04 | 中国科学院化学研究所 | Organic / inorganic composite adhesive |
| CN102898982A (en) * | 2012-10-30 | 2013-01-30 | 蚌埠市比优特包装印务有限责任公司 | High-strength sealing glue for paper packaging box |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104164198A (en) * | 2014-06-30 | 2014-11-26 | 安徽神舟飞船胶业有限公司 | Methyl cellulose-phenolic resin mixed adhesive formula and preparing process thereof |
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Application publication date: 20140319 |
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