CN1133214A - Modified soluble organic adhesive for casting - Google Patents
Modified soluble organic adhesive for casting Download PDFInfo
- Publication number
- CN1133214A CN1133214A CN 95103925 CN95103925A CN1133214A CN 1133214 A CN1133214 A CN 1133214A CN 95103925 CN95103925 CN 95103925 CN 95103925 A CN95103925 A CN 95103925A CN 1133214 A CN1133214 A CN 1133214A
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- China
- Prior art keywords
- acid
- binding agent
- soluble organic
- casting
- mixture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Mold Materials And Core Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The modified soluble organic binder for casting is prepared up throught he copolymerization of the organic acid and vegetable oil under the action of initiator and neutralization in the solution of alkali metal hydroxide. Compared with the unmodified product, the binding strength and moisture absorbing resistance of said product are obviously improved.
Description
The present invention relates to a kind of modified soluble organic adhesive for casting.
Existing CO
2Gas is urged hard water-soluble organic binder for casting (as polyvinyl alcohol, polyacrylate etc.), and adhesion strength is low, anti-moisture absorption property is poor, and particularly in the high-humidity climate environment, above-mentioned contradiction is more outstanding, thereby in use is very limited.
The present invention is directed to deficiency of the prior art, invent a kind of available CO
2Acidic materials such as gas are urged hard casting vegetable oil soluble organic adhesive, and type (core) sand intensity is improved, and anti-moisture absorption property is improved.
The present invention is subjected to the peroxide initiator effect under given conditions and copolyreaction is taken place by aqueous solutions of organic acids and vegetable oil, with the alkali hydroxide soln neutralization, generates a kind of new soluble organic adhesive then.Organic acid can be acrylic acid or with the mixture of fumaric acid or maleic acid (acid anhydride); Vegetable oil can be tung oil or modification rice bran oil or its mixture; Initator can be hydrogen peroxide or ammonium persulfate or benzoyl peroxide or two kinds mixture wherein; Alkali metal hydroxide is NaOH or potassium hydroxide or its mixture.
Prescription of the present invention is (percentage by weight): organic acid 8～20%, vegetable oil 0.5～2.5%, initator 0.2～0.7%, alkali metal hydroxide 4～12%, Yu Weishui.
Preparation method of the present invention is: add vegetable oil in the aqueous solutions of organic acids that has initator to exist, in temperature is that 80 ℃-130 ℃, pressure are to stir the companion under the 1-4atm condition 2-6 hour, adds alkali metal hydroxide (aqueous solution) after copolyreaction is finished and stirs.
Because vegetable oil has changed hydrophilic tendency after participating in the organic acid copolyreaction.Therefore, the present invention compares with the binding agent that does not add the vegetable oil making, and the intensity and the resistance to water soak of sand mold (core) are significantly improved.
Embodiment: binder formula (percentage by weight) is:
Acrylic acid 15.6%
Tung oil and modification rice bran oil 2.0%
Hydrogen peroxide and benzoyl peroxide 0.35%
NaOH 8.5%
Surplus is the water experiment effect
Type (core) sand proportioning is: normal sand 100, binding agent 3.5, curing agent (mainly containing calcium hydroxide) 1.0.
Blow CO
2Gas solidifies: gassing time 10 seconds, CO
2Gas pressure 0.1MP
a, 18 ℃ of temperature, humidity 70%.
Claims (6)
1. a modified soluble organic adhesive for casting of being made up of organic acid, initator, alkali metal hydroxide and water is characterized in that containing vegetable oil in this soluble organic adhesive molecular structure.
2. by the described binding agent of claim 1, it is characterized in that vegetable oil is tung oil or modification rice bran oil or its mixture.
3. by the described binding agent of claim 1, it is characterized in that organic acid is the mixture of acrylic acid or acrylic acid and fumaric acid or maleic acid (acid anhydride).
4. by the described binding agent of claim 1, it is characterized in that initator is hydrogen peroxide or ammonium persulfate or benzoyl peroxide or the mixture of the two wherein.
5. by the described binding agent of claim 1, it is characterized in that alkali metal hydroxide is NaOH or potassium hydroxide or its mixture.
6. by the described binding agent of claim 1, it is characterized in that its component content (percentage by weight) is:
Organic acid 8～20%
Vegetable oil 0.5～2.5%
Initator 0.2～0.7%
Alkali metal hydroxide 4～12%
Yu Weishui
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95103925A CN1043314C (en) | 1995-04-13 | 1995-04-13 | Modified soluble organic adhesive for casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95103925A CN1043314C (en) | 1995-04-13 | 1995-04-13 | Modified soluble organic adhesive for casting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1133214A true CN1133214A (en) | 1996-10-16 |
| CN1043314C CN1043314C (en) | 1999-05-12 |
Family
ID=5074927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95103925A Expired - Fee Related CN1043314C (en) | 1995-04-13 | 1995-04-13 | Modified soluble organic adhesive for casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1043314C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101927319A (en) * | 2010-04-29 | 2010-12-29 | 苏州市兴业铸造材料有限公司 | Adhesive applicable for manufacturing casting mold and use thereof |
| CN106694793A (en) * | 2015-11-17 | 2017-05-24 | 胡坦斯·阿尔伯图斯化学厂有限公司 | Application of alkaline composition, corresponding method, casting mould and kit |
| WO2018027891A1 (en) * | 2016-08-12 | 2018-02-15 | Dow Global Technologies Llc | Method for making water-based pressure sensitive adhesive compositions |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB965825A (en) * | 1962-06-20 | 1964-08-06 | Foseco Trading Ag | Sand products for foundry use |
| CN1008243B (en) * | 1987-04-04 | 1990-06-06 | 天津市南开区铸造涂料厂 | Composite type binding material for casting |
| CN1026764C (en) * | 1992-03-17 | 1994-11-30 | 滨州师范专科学校 | Method for making moulding sand binding agent by use of cotton oil distillation residues therefrom |
| CN1088859A (en) * | 1993-01-02 | 1994-07-06 | 大连市金州区同益化工厂 | High-strength adhesive for casting |
| US5536395A (en) * | 1993-03-22 | 1996-07-16 | Amway Corporation | Home water purification system with automatic disconnecting of radiant energy source |
-
1995
- 1995-04-13 CN CN95103925A patent/CN1043314C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101927319A (en) * | 2010-04-29 | 2010-12-29 | 苏州市兴业铸造材料有限公司 | Adhesive applicable for manufacturing casting mold and use thereof |
| CN106694793A (en) * | 2015-11-17 | 2017-05-24 | 胡坦斯·阿尔伯图斯化学厂有限公司 | Application of alkaline composition, corresponding method, casting mould and kit |
| WO2018027891A1 (en) * | 2016-08-12 | 2018-02-15 | Dow Global Technologies Llc | Method for making water-based pressure sensitive adhesive compositions |
| RU2738816C2 (en) * | 2016-08-12 | 2020-12-17 | Дау Глоубл Текнолоджиз Ллк | Method of producing a pressure sensitive water-based adhesive composition |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1043314C (en) | 1999-05-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |