CN102775713A - Preparation method of plastic die material for ceramic forming - Google Patents
Preparation method of plastic die material for ceramic forming Download PDFInfo
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- CN102775713A CN102775713A CN2012102407827A CN201210240782A CN102775713A CN 102775713 A CN102775713 A CN 102775713A CN 2012102407827 A CN2012102407827 A CN 2012102407827A CN 201210240782 A CN201210240782 A CN 201210240782A CN 102775713 A CN102775713 A CN 102775713A
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Abstract
The invention relates to a preparation method of a plastic die material for ceramic forming. The preparation method of the plastic die material comprises the following steps of: 1) adding unsaturated polyester, methyl methacrylate and surfactant to a reaction kettle, controlling the temperature and agitating by a stirrer; 2) adding methyl methacrylate in batch for a plurality of times, and fastening the stirring speed at the same time; 3) adding dibenzoyl peroxide and inorganic powder, and continuing to stir; 4) adding salt and silica gel; and 5) slowly adding water and sodium dodecyl sulfate to a reaction system, fully stirring uniformly and curing at the room temperature. The plastic die material for the ceramic forming, obtained by the preparation method, has better hydroscopicity.
Description
Technical field
The present invention relates to pottery and ceramic die industry, be specifically related to be used for the preparation method of the plastic mould material of forming process of ceramics.
Background technology
Gypsum mold is domestic ceramics and the traditional moulds used since the sanitary pottery industrial production midium or long term, because its low preparation cost and self-characteristic still are widely used in slip casting, spinning, roll extrusion, the plastic compression moulding processs such as (colding pressing) at present.Along with ceramic industry progressively to the development of mechanize and automatic production direction, the weak point of gypsum mold is also just more and more outstanding, for example intensity is low, work-ing life is short etc.Simultaneously because the quality of gypsum mold directly influences and has determined the quality of molding blank, and final decision the quality of product.Therefore, the limitation that gypsum material itself exists has restricted ceramic industry to high-quality, direction develops efficiently.
Mould of plastics has excellent performance; Good springiness for example in light weight, tough, good mechanical property, acid-alkali-corrosive-resisting, long service life etc. can be carried out car, mill, plane, mill, brill, various operations such as bonding; Be applicable to various moulding processs; But there are shortcomings such as water-absorbent difference in existing mould of plastics, is difficult to satisfy the demand of ceramic molding, has limited the use of mould of plastics in forming process of ceramics.
Summary of the invention
The present invention utilizes liquid phase pore-forming principle, and a kind of preparation method who is used for the plastic mould material of forming process of ceramics is provided.
The preparation method who is used for the plastic mould material of forming process of ceramics of the present invention comprises the steps:
The first step, in 100 parts of unsaturated polyesters, 20～30 parts of TEB 3Ks, 1～2 part of adding reaction kettle of tensio-active agent, controlled temperature stirred 15～25 minutes at 40 ℃～60 ℃;
Second step, in 10～20 parts of adding reaction kettles of polymethylmethacrylate, strengthen stirring velocity simultaneously, churning time is 20～30 minutes;
The 3rd step, treat that polymethylmethacrylate is uniformly dispersed after, add 2～5 parts of BPOs and 2～5 parts of mineral powders, continue to stir 15～30 minutes;
The 4th step added 10～40 parts in 2～5 parts of salt and silica gel, continued to strengthen stirring velocity;
The 5th step, continue to stir after 10～20 minutes, with the system cooling, slowly add 10～70 parts of entry and 2～5 parts of sodium laurylsulfonates to reaction system, after stirring, self-vulcanizing.
When step 2 added said polymethylmethacrylate in reaction kettle, repeatedly added preferred the branch in batches.
In the preferred lime carbonate of said mineral powder, polynite, talcum powder or the titanium oxide more than one.
In the preferred thionamic acid sodium of said salt, tetrabutylammonium perchlorate sodium or the disodium EDTA more than one.
The said cooling of step 5 preferably is reduced to 0～10 ℃.
Increasing stirring velocity according to the invention is: as long as the stirring velocity that guarantees step 2 big than step 1, the stirring velocity of step 4 gets final product greater than the stirring velocity of step 2, to the scope no requirement (NR).
The resulting forming process of ceramics of the present invention is used the plastic mould material good water absorption, can satisfy the requirement of ceramic molding.
Description of drawings
Fig. 1 does not contact the photo on plastic mould material surface for water droplet.
The photo of Fig. 2 after for water droplet contact plastic mould material surface.
Embodiment
Below in conjunction with embodiment, the present invention is done detailed description further
Embodiment 1
The first step, in 100 parts of unsaturated polyesters, 20 parts of TEB 3Ks, 1 part of adding reaction kettle of polysorbate, controlled temperature stirred 15 minutes with whisking appliance at 40 ℃.
Second step, in 10 parts of adding reaction kettles of polymethylmethacrylate, divide 3 addings, strengthen stirring velocity simultaneously, churning time is 30 minutes.
The 3rd step, treat that polymethylmethacrylate is uniformly dispersed after, add 5 parts of BPOs and 5 parts in lime carbonate, continue to stir 15 minutes.
The 4th step added 10 parts in 2 parts in thionamic acid sodium and silica gel, and this moment, emulsion viscosity obviously increased, and should continue suitably to strengthen stirring velocity.
The 5th step, continue to stir after 10 minutes, system is cooled to 10 ℃, slowly add 20 parts of entry and 2 parts of sodium laurylsulfonates to reaction system, after stirring, self-vulcanizing.
Embodiment 2
The first step, in 100 parts of unsaturated polyesters, 20 parts of TEB 3Ks, 1 part of adding reaction kettle of polysorbate, controlled temperature stirred 15 minutes with whisking appliance at 45 ℃.
Second step, in 10 parts of adding reaction kettles of polymethylmethacrylate, divide 3 addings, strengthen stirring velocity simultaneously, churning time is 20 minutes.
The 3rd step, treat that polymethylmethacrylate is uniformly dispersed after, add 4 parts of BPOs and 4 parts of titanium oxide, continue to stir 20 minutes.
The 4th step added 20 parts in 2 parts in thionamic acid sodium and silica gel, and this moment, emulsion viscosity obviously increased, and should continue suitably to strengthen stirring velocity.
The 5th step, continue to stir after 10 minutes, system is cooled to 10 ℃, slowly add 30 parts of entry and 3 parts of sodium laurylsulfonates to reaction system, after stirring, self-vulcanizing.
Embodiment 3
The first step, in 100 parts of unsaturated polyesters, 25 parts of TEB 3Ks, 1.5 parts of adding reaction kettles of glycerin fatty acid ester, controlled temperature stirred 20 minutes with whisking appliance at 50 ℃.
Second step, in 15 parts of adding reaction kettles of polymethylmethacrylate, divide 4 addings, strengthen stirring velocity simultaneously, churning time is 25 minutes.
The 3rd step, treat that polymethylmethacrylate is uniformly dispersed after, add 3 parts of BPOs and 3 parts in lime carbonate, continue to stir 15 minutes.
The 4th step added 25 parts in 4 parts in tetrabutylammonium perchlorate sodium and silica gel, and this moment, emulsion viscosity obviously increased, and should continue suitably to strengthen stirring velocity.
The 5th step, continue to stir after 15 minutes, system is cooled to 5 ℃, slowly add 40 parts of entry and 4 parts of sodium laurylsulfonates to reaction system, after stirring, self-vulcanizing.
Embodiment 4
The first step, in 100 parts of unsaturated polyesters, 25 parts of TEB 3Ks, 1.5 parts of adding reaction kettles of glycerin fatty acid ester, controlled temperature stirred 15 minutes with whisking appliance at 55 ℃.
Second step, in 20 parts of adding reaction kettles of polymethylmethacrylate, divide 5 addings, strengthen stirring velocity simultaneously, churning time is 20 minutes.
The 3rd step, treat that polymethylmethacrylate is uniformly dispersed after, add 3 parts of BPOs and 3 parts of talcum powder, continue to stir 20 minutes.
The 4th step added 30 parts in 2 parts of EDTA Disodiums and silica gel, and this moment, emulsion viscosity obviously increased, and should continue suitably to strengthen stirring velocity.
The 5th step, continue to stir after 20 minutes, system is cooled to 5 ℃, slowly add 50 parts of entry and 5 parts of sodium laurylsulfonates to reaction system, after stirring, self-vulcanizing.
Embodiment 5
The first step, in 100 parts of unsaturated polyesters, 30 parts of TEB 3Ks, 2 parts of adding reaction kettles of glycerin fatty acid ester, controlled temperature stirred 25 minutes with whisking appliance at 60 ℃.
Second step, in 15 parts of adding reaction kettles of polymethylmethacrylate, divide 4 addings, strengthen stirring velocity simultaneously, churning time is 30 minutes.
The 3rd step, treat that polymethylmethacrylate is uniformly dispersed after, add 2 parts of BPOs and 2 parts of polynites, continue to stir 15 minutes.
The 4th step added 40 parts in 5 parts in thionamic acid sodium and silica gel, and this moment, emulsion viscosity obviously increased, and should continue suitably to strengthen stirring velocity.
The 5th step, continue to stir after 20 minutes, system is cooled to 0 ℃, slowly add 70 parts of entry and 2 parts of sodium laurylsulfonates to reaction system, after stirring, self-vulcanizing.
The plastic mould material that obtains according to the foregoing description 1-5; Measured water respectively at its surperficial surface contact angle; The result shows that water droplet is paved on the mould of plastics surface soon when water droplet contact plastic mould material surface, and Gu Shui is 0 ° at the surface contact angle on plastic mould material surface; This presentation of results, the resulting plastic mould material of the present invention has water-absorbent preferably.Measure the result as attaching shown in Fig. 1 and 2.Fig. 1 does not contact the photo on plastic mould material surface for water droplet, and Fig. 2 contacts the photo behind the plastic mould material surface for water droplet.
Claims (5)
1. be used for the preparation method of the plastic mould material of forming process of ceramics, comprise the steps:
The first step, in 100 parts of unsaturated polyesters, 20～30 parts of TEB 3Ks, 1～2 part of adding reaction kettle of tensio-active agent, controlled temperature stirred 15～25 minutes at 40 ℃～60 ℃;
Second step, in 10～20 parts of adding reaction kettles of polymethylmethacrylate, strengthen stirring velocity simultaneously, churning time is 20～30 minutes;
The 3rd step, treat that polymethylmethacrylate is uniformly dispersed after, add 2～5 parts of BPOs and 2～5 parts of mineral powders, continue to stir 15～30 minutes;
The 4th step added 10～40 parts in 2～5 parts of salt and silica gel, continued to strengthen stirring velocity;
The 5th step, continue to stir after 10～20 minutes, with the system cooling, slowly add 10～70 parts of entry and 2～5 parts of sodium laurylsulfonates to reaction system, after stirring, self-vulcanizing.
2. preparation method according to claim 1 is characterized in that, step 2 adds the repeatedly adding in batches of said polymethylmethacrylate time-division in reaction kettle.
3. preparation method according to claim 1 is characterized in that said mineral powder comprises more than one in lime carbonate, polynite, talcum powder or the titanium oxide.
4. preparation method according to claim 1 is characterized in that said salt comprises more than one in thionamic acid sodium, tetrabutylammonium perchlorate sodium or the EDTA Disodium.
5. preparation method according to claim 1 is characterized in that, the said cooling of step 5 is to be reduced to 0～10 ℃.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210240782.7A CN102775713B (en) | 2012-07-12 | 2012-07-12 | Preparation method of plastic die material for ceramic forming |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210240782.7A CN102775713B (en) | 2012-07-12 | 2012-07-12 | Preparation method of plastic die material for ceramic forming |
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| CN102775713A true CN102775713A (en) | 2012-11-14 |
| CN102775713B CN102775713B (en) | 2014-04-02 |
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| CN201210240782.7A Active CN102775713B (en) | 2012-07-12 | 2012-07-12 | Preparation method of plastic die material for ceramic forming |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104194236A (en) * | 2014-08-28 | 2014-12-10 | 云南云天化股份有限公司 | Acrylate-ceramic composite material and preparation method thereof, and base plate |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3763056A (en) * | 1971-06-02 | 1973-10-02 | G Will | Porous polymeric compositions processes and products |
| US4801624A (en) * | 1983-12-14 | 1989-01-31 | Guenther Will | Molding of ceramic materials |
| EP0516224A1 (en) * | 1991-05-30 | 1992-12-02 | SACMI Cooperativa Meccanici Imola Soc. Coop. a Resp. Lim. | Porous mould materials, their production and their use for forming ceramic castings |
-
2012
- 2012-07-12 CN CN201210240782.7A patent/CN102775713B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3763056A (en) * | 1971-06-02 | 1973-10-02 | G Will | Porous polymeric compositions processes and products |
| US4801624A (en) * | 1983-12-14 | 1989-01-31 | Guenther Will | Molding of ceramic materials |
| EP0516224A1 (en) * | 1991-05-30 | 1992-12-02 | SACMI Cooperativa Meccanici Imola Soc. Coop. a Resp. Lim. | Porous mould materials, their production and their use for forming ceramic castings |
Non-Patent Citations (4)
| Title |
|---|
| 《山东轻工业学院学报》 20061231 武光 等 "陶瓷成型用不饱和树脂基模具的研究" 82-84 1-5 第20卷, 第4期 * |
| 《陶瓷》 20051231 田燕 等 "陶瓷成形用多孔塑料模具的研究进展" 19-22 1-5 , 第10期 * |
| 武光 等: ""陶瓷成型用不饱和树脂基模具的研究"", 《山东轻工业学院学报》, vol. 20, no. 4, 31 December 2006 (2006-12-31), pages 82 - 84 * |
| 田燕 等: ""陶瓷成形用多孔塑料模具的研究进展"", 《陶瓷》, no. 10, 31 December 2005 (2005-12-31), pages 19 - 22 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104194236A (en) * | 2014-08-28 | 2014-12-10 | 云南云天化股份有限公司 | Acrylate-ceramic composite material and preparation method thereof, and base plate |
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