CN1054618C - Method for preparation of dry power briquetting binder - Google Patents
Method for preparation of dry power briquetting binder Download PDFInfo
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- CN1054618C CN1054618C CN95115778A CN95115778A CN1054618C CN 1054618 C CN1054618 C CN 1054618C CN 95115778 A CN95115778 A CN 95115778A CN 95115778 A CN95115778 A CN 95115778A CN 1054618 C CN1054618 C CN 1054618C
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Abstract
The present invention belongs to a high molecular polymer, namely ceramic additives-a method for preparing dry power briquetting adhesives. The present invention comprises the following steps: material proportion (preparation), pre-emulsification, preparation of protective adhesives, polymerization reaction, etc., wherein the reaction temperature of a reactor is controlled within 80 DEGC to 85 DEGC, and the reaction time is from 3 to 5 hours; under the protection of nitrogen (under the work condition of normal pressure), the polymerization reaction is completed to generate the desired products. The method has the advantages of reasonable material proportion, simple production process, low cost, etc. The products of the method have the advantages of good combination property of bond, reinforcement, flexibility, dispersedness, etc. The rate of blank formation is high.
Description
The present invention relates to chemical technical field of macromolecule polymerization, belong to a kind of preparation method of ceramic additive.
Dry power briquetting binder is a kind of additive required in the ceramic body shaping production technique, it becomes the base processing performance to have important role for products (isostatic pressing class) such as wall floor tile, high-grade domestic ceramicses for it, has caused the concern of domestic and international ceramic industry in recent years.
In the prior art, the preparation about dry power briquetting binder comprises: methods such as polyreaction and mixed preparing.For example the EV-12 type product produced of West Germany bonds, strengthens and gentle plasticity energy though this product has preferably, owing to need to adopt such as gas materials and condition of high voltage thereof such as ethene, its complex process, investment is big, cost is high.Other preparation method, though fairly simple, made power briquetting binder function singleness, poor performance can't satisfy the actual requirement of base substrate production technique, and billet yield is low, difficult quality guarantee.
Purpose of the present invention be exactly at problems of the prior art with not enough, propose that a kind of technology is simple, cost is low, performance is good, can under the common working conditions of normal pressure, carry out the preparation method of polyreaction.
Particular content of the present invention is described in detail as follows: this method comprises the preparation → polyreaction of proportioning raw materials (prescription) → pre-emulsification → protection glue etc.
Proportioning raw materials: total prescription is (weight %), water 50～60, vinyl acetate between to for plastic 25～35, Butyl acrylate 4～8, OP-10 0.5～1.4, sodium lauryl sulphate 0.4～0.8, vinylformic acid 0.2～0.8, dibutyl phthalate (DBP) 2～6, sodium hydroxide 0.1～0.2, sodium polyacrylate 1～4, polyoxyethylene glycol 1～4, polyvinyl alcohol 2～8, ammonium persulphate 0.1～0.3.(total prescription=formula I+formula I I).Formula I (pre-emulsification) is: water 10～15, OP-100.4～0.8, sodium lauryl sulphate 0.2～0.6, vinyl acetate between to for plastic 25～35, Butyl acrylate 4～8, vinylformic acid 0.2～0.8, sodium hydroxide 0.1～0.2.Formula I I (protection glue) is: water 35～50, polyvinyl alcohol 2～8, polyoxyethylene glycol 1～4, sodium polyacrylate 1～4, dibutyl phthalate (DBP) 2～6, OP-10 0.4～1.2, sodium lauryl sulphate 0.2～0.6.
Pre-emulsification: (weight %) gets the raw materials ready according to formula I, when carrying out pre-emulsification technology, should add water in the reactor earlier, start stirring, add OP-10 and sodium lauryl sulphate simultaneously, add vinyl acetate between to for plastic, Butyl acrylate respectively, again vinylformic acid and sodium hydroxide are mixed and add stirring, pre-at normal temperatures emulsification got final product in two hours.The emulsion of taking-up 10%～20% is as seed liquor, and it is stand-by that the residue emulsion is all squeezed into header tank.
The preparation of protection glue: get the raw materials ready according to formula I I (weight %); when preparing; should add reactor to water earlier and start stirring; add polyvinyl alcohol; be warming up to 90 ℃ of insulations 1 hour; be cooled to 80 ℃ polyoxyethylene glycol and sodium polyacrylate added respectively, also should add OP-10, sodium lauryl sulphate and dibutyl phthalate (DBP) in the reactor and can continue to employ simultaneously.
Polyreaction: when temperature in the kettle is 80 ℃ ± 2 ℃, at first add 1/3 of seed liquor and ammonium persulphate, charge into nitrogen; Begin to drip pre-emulsified monomer when it reflux to reduce when condenser and added an ammonium persulphate (in right amount) every 15 minutes, its temperature of reactor remains on 80 ℃～85 ℃, dropwised through 3～5 hours, remaining ammonium persulphate is once added, the insulation slaking was cooled to 40 ℃ of dischargings and can obtains the dry power briquetting binder goods after 1 hour.
The present invention compared with prior art, it not only has the reasonable raw material proportioning, the technology of simple possible, and reducing production costs effectively is convenient to the large, medium and small producer in various places and is implemented.Adopting the dry power briquetting binder of this method preparation to be fit to make an addition to water ratio is 2～6% various ceramic powder blanks, has good bonding, enhancing, gentle moulding and over-all properties such as dispersion, and billet yield significantly improves.
Claims (1)
1, a kind of ceramic additive---the preparation method of dry power briquetting binder, it comprises that the preparation → polyreaction etc. of proportioning raw materials (prescription) → pre-emulsification → protection glue is characterized in that:
A). pre-emulsification needs according to formula I (weight %): water 10～15, OP-100.4～0.8, sodium lauryl sulphate 0.2～0.6, vinyl acetate between to for plastic 25～35, Butyl acrylate 4～8, vinylformic acid 0.2～0.8, sodium hydroxide 0.1～0.2 blanking drop in the reactor and stir, pre-at normal temperatures emulsification can and be taken out 10%～20% emulsion in 2 hours as seed liquor, and it is stand-by that the residue emulsion is all squeezed into header tank;
B). the preparation of protection glue needs according to formula I I (weight %): water 35～50, polyvinyl alcohol 2～8, polyoxyethylene glycol 1～4, sodium polyacrylate 1～4, dibutyl phthalate (DBP) 2～6, OP-10 0.4～1.2, sodium lauryl sulphate 0.2～0.6 are got the raw materials ready, beginning adds reactor to water earlier, start stirring and add polyvinyl alcohol again, be warming up to 90 ℃ of insulations 1 hour, be cooled to 80 ℃ and all the other are got the raw materials ready add reactors and can continue to employ;
C). with seed liquor, ammonium persulphate and emulsion mix reactor in regular turn and charge into nitrogen and enter polyreaction, and temperature of reaction is controlled at 80～85 ℃, and the reaction times was controlled at 3～5 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95115778A CN1054618C (en) | 1995-10-06 | 1995-10-06 | Method for preparation of dry power briquetting binder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95115778A CN1054618C (en) | 1995-10-06 | 1995-10-06 | Method for preparation of dry power briquetting binder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1131175A CN1131175A (en) | 1996-09-18 |
| CN1054618C true CN1054618C (en) | 2000-07-19 |
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ID=5080657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95115778A Expired - Fee Related CN1054618C (en) | 1995-10-06 | 1995-10-06 | Method for preparation of dry power briquetting binder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1054618C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100387379C (en) * | 2005-12-22 | 2008-05-14 | 株洲钻石切削刀具股份有限公司 | Plasticizer for ceramet production |
| CN109728299B (en) * | 2018-12-21 | 2022-01-28 | 湖南高瑞电源材料有限公司 | Preparation method of slurry for battery and slurry for battery |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86108230A (en) * | 1986-12-15 | 1988-06-29 | 上海无线电六厂 | Electronic ceramic binder for film formation by flow and expansion |
-
1995
- 1995-10-06 CN CN95115778A patent/CN1054618C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86108230A (en) * | 1986-12-15 | 1988-06-29 | 上海无线电六厂 | Electronic ceramic binder for film formation by flow and expansion |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1131175A (en) | 1996-09-18 |
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