CN104890267A - Rubber sheet production technology - Google Patents
Rubber sheet production technology Download PDFInfo
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- CN104890267A CN104890267A CN201510199837.8A CN201510199837A CN104890267A CN 104890267 A CN104890267 A CN 104890267A CN 201510199837 A CN201510199837 A CN 201510199837A CN 104890267 A CN104890267 A CN 104890267A
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- latex
- sheet rubber
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Abstract
The invention discloses a rubber sheet production technology, and relates to rubber manufacturing field, and the rubber sheet production technology is as follows: 1) butenenitrile, allene and concentrated water and a polymerizer are mixed in the mass ratio of 3:1:1:1; 2) the mixed material is fed into a reaction kettle for preparing latex; 3) the latex prepared by the reaction kettle is degassed, and the degassed latex enters into a latex storage tank; 4) the latex in the latex storage tank is sent into a condensation kettle for condensation; 5) the condensed rubber is cleaned; and 6) finally the condensed rubber is dehydrated, and finally enters into a drying oven for drying into a rubber sheet. The prepared rubber sheet is thickened and durable.
Description
Technical field
The present invention relates to rubber and manufacture field, particularly relate to a kind of production technology of sheet rubber.
Background technology
Rubber (Rubber): the strong flexible polymer material with reversible deformation.At room temperature high resilience, can produce comparatively large deformation under very little External Force Acting, resilient after removing external force.Rubber belongs to complete amorphous polymer, and its glass transition temperature (Tg) is low, molecular weight is often very large, and be greater than hundreds of thousands, neoprene take chlorobutadiene as primary raw material, by homopolymerization or other monomer copolymerization on a small quantity.As tensile strength is high, heat-resisting, fast light, ageing-resistant performance is excellent, oil resistance is all better than natural rubber, butadiene-styrene rubber, butadiene rubber.Have stronger flame resistance and excellent fire retardance, its chemical stability is higher, and resistance to water is good.The shortcoming of neoprene is electrical insulation capability, and cold tolerance is poor, and rubber is unstable when storing, and when being used for manufacturing the sheet rubber for centrifugal pump or diaphragm pump in thin pulp transport, service life is low, and ductility is bad, and the present invention changes these shortcomings.
Summary of the invention
For overcoming the deficiency in prior art, the object of the invention is to provide a kind of production technology thickening durable rubber sheet.
For realizing object of the present invention, technical scheme of the present invention is as follows:
A production technology for sheet rubber, is characterized in that, its processing step is as follows:
1) butene nitrile, allene, condensed water and polymerizer are carried out mixing of materials by the mass ratio of 3:1:1:1;
2) mixed material is entered reactor, then produce latex toward addition agent emulsion and activator in reactor;
3) carry out degassed to the latex produced through reactor, the latex after degassed enters in latex storage tank;
4) latex is poured in mould, in vacuum environment, cool drying 5h under 25 DEG C of conditions, the sheet rubber of system;
5) by rubber by mass concentration be first again 0.2-0.5% soda bath under clean 2-3 time, then be that the hydrochloric acid solution of 0.2-0.5% is cleaning 4-5 time at the temperature of 20-40 DEG C by mass concentration;
6) finally dewater, finally enter drying box, sheet rubber processed.
Preferably, after described step (5), carry out gluing, temperature be 25 DEG C, relative air humidity is less than in the operating room of 70%, with gasoline by 0.1mm polyurethane film surface clean one time, first dip a small amount of isocyanate glue to wave at gasoline and smear one deck to time half-dried, carry out pregelatinated, then etc. gasoline all volatilize the uniform isocyanate glue of rear painting last layer.
Preferably, after gluing, dry sheet rubber, bake out temperature is 80 DEG C.
Beneficial effect of the present invention: by plasticating, mixing, shaping, process, gluing, glue connects and dries the preparation that seven steps complete sheet rubber, in the sheet rubber of this preparation, first plasticate, improve the plasticity of rubber, in step below, rubber can mix well with other materials, with the addition of acetonitrile rubber, add ductility, in forming step, in vacuum environment, cool drying 24h under 25 DEG C of conditions, vacuum condition can slough the bubble in mixed glue, Slow cooling under normal temperature, colloid is not easily made to occur crackle when drying, make its more consolidation, the effectiveness that the employing of polyurethane film mainly take into account neoprene is better, but mid portion more easily consumes than two end portions, increase two panels polyurethane film and extend sheet rubber service life, the thickness of 0.01mm does not affect the use of sheet rubber yet, in gluing process, first dip a small amount of isocyanate glue to wave at gasoline and smear one deck to time half-dried, carry out pregelatinated, gasoline is waited all to volatilize the uniform isocyanate glue of rear painting last layer again, the viscosity of glue is played better, strengthen viscose glue ability.
Detailed description of the invention
The technological means realized for making the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with detailed description of the invention, setting forth the present invention further.
A production technology for sheet rubber, is characterized in that, its processing step is as follows:
1) butene nitrile, allene, condensed water and polymerizer are carried out mixing of materials by the mass ratio of 3:1:1:1;
2) mixed material is entered reactor, then produce latex toward addition agent emulsion and activator in reactor;
3) carry out degassed to the latex produced through reactor, the latex after degassed enters in latex storage tank;
4) latex is poured in mould, in vacuum environment, cool drying 5h under 25 DEG C of conditions, the sheet rubber of system;
5) by rubber by mass concentration be first again 0.4% soda bath under cleaning 3 times, then with mass concentration be 0.3% hydrochloric acid solution cleaning at the temperature of 30 DEG C 4 times;
6) finally dewater, finally enter drying box, sheet rubber processed.
Preferably, after described step (5), carry out gluing, temperature be 25 DEG C, relative air humidity is less than in the operating room of 70%, with gasoline by 0.1mm polyurethane film surface clean one time, first dip a small amount of isocyanate glue to wave at gasoline and smear one deck to time half-dried, carry out pregelatinated, then etc. gasoline all volatilize the uniform isocyanate glue of rear painting last layer.
Preferably, after gluing, dry sheet rubber, bake out temperature is 80 DEG C.
In the production technology of this sheet rubber, by plasticating, mixing, shaping, process, gluing, glue connects and dries the preparation that seven steps complete sheet rubber, in the sheet rubber of this preparation, first plasticate, improve the plasticity of rubber, in step below, rubber can mix well with other materials, with the addition of acetonitrile rubber, add ductility, in forming step, in vacuum environment, cool drying 24h under 25 DEG C of conditions, vacuum condition can slough the bubble in mixed glue, Slow cooling under normal temperature, colloid is not easily made to occur crackle when drying, make its more consolidation, the effectiveness that the employing of polyurethane film mainly take into account neoprene is better, but mid portion more easily consumes than two end portions, increase two panels polyurethane film and extend sheet rubber service life, the thickness of 0.01mm does not affect the use of sheet rubber yet, in gluing process, first dip a small amount of isocyanate glue to wave at gasoline and smear one deck to time half-dried, carry out pregelatinated, gasoline is waited all to volatilize the uniform isocyanate glue of rear painting last layer again, the viscosity of glue is played better, strengthen viscose glue ability.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; 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 (3)
1. a production technology for sheet rubber, is characterized in that, its processing step is as follows:
1) butene nitrile, allene, condensed water and polymerizer are carried out mixing of materials by the mass ratio of 3:1:1:1;
2) mixed material is entered reactor, then produce latex toward addition agent emulsion and activator in reactor;
3) carry out degassed to the latex produced through reactor, the latex after degassed enters in latex storage tank;
4) latex is poured in mould, in vacuum environment, cool drying 5h under 25 DEG C of conditions, the sheet rubber of system;
5) by rubber by mass concentration be first again 0.2-0.5% soda bath under clean 2-3 time, then be that the hydrochloric acid solution of 0.2-0.5% is cleaning 4-5 time at the temperature of 20-40 DEG C by mass concentration;
6) finally dewater, finally enter drying box, sheet rubber processed.
2. the production technology of a kind of sheet rubber according to claim 1, it is characterized in that, after described step (5), carry out gluing, temperature be 25 DEG C, relative air humidity is less than in the operating room of 70%, with gasoline by 0.1mm polyurethane film surface clean one time, first dip a small amount of isocyanate glue and wave at gasoline and smear one deck to time half-dried, carry out pregelatinated, then etc. gasoline all volatilize the uniform isocyanate glue of rear painting last layer.
3. the production technology of a kind of sheet rubber according to claim 2, is characterized in that, after gluing, dries sheet rubber, and bake out temperature is 80 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510199837.8A CN104890267A (en) | 2015-04-25 | 2015-04-25 | Rubber sheet production technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510199837.8A CN104890267A (en) | 2015-04-25 | 2015-04-25 | Rubber sheet production technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104890267A true CN104890267A (en) | 2015-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510199837.8A Pending CN104890267A (en) | 2015-04-25 | 2015-04-25 | Rubber sheet production technology |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103538323A (en) * | 2013-09-22 | 2014-01-29 | 苏州市湘园特种精细化工有限公司 | Manufacturing method of rubber diaphragm |
| CN103538348A (en) * | 2013-09-22 | 2014-01-29 | 苏州市湘园特种精细化工有限公司 | Production method of flame retardant rubber |
| CN104193894A (en) * | 2014-09-28 | 2014-12-10 | 无锡市东北塘永丰橡塑厂 | Production process of rubber for rubber hammer |
-
2015
- 2015-04-25 CN CN201510199837.8A patent/CN104890267A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103538323A (en) * | 2013-09-22 | 2014-01-29 | 苏州市湘园特种精细化工有限公司 | Manufacturing method of rubber diaphragm |
| CN103538348A (en) * | 2013-09-22 | 2014-01-29 | 苏州市湘园特种精细化工有限公司 | Production method of flame retardant rubber |
| CN104193894A (en) * | 2014-09-28 | 2014-12-10 | 无锡市东北塘永丰橡塑厂 | Production process of rubber for rubber hammer |
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Application publication date: 20150909 |