CN100388990C - Production method of alcohol-based concave-convex stick suspending agent - Google Patents
Production method of alcohol-based concave-convex stick suspending agent Download PDFInfo
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- CN100388990C CN100388990C CNB2006100884690A CN200610088469A CN100388990C CN 100388990 C CN100388990 C CN 100388990C CN B2006100884690 A CNB2006100884690 A CN B2006100884690A CN 200610088469 A CN200610088469 A CN 200610088469A CN 100388990 C CN100388990 C CN 100388990C
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Abstract
The invention relates to a method for producing mellow concave-convex rod suspension. Wherein, it comprises mixing convex-concave rod clay, magnesia, sodium silicate, and macrogol, emerging, compressing, drying, grinding, and packing. The invention has low cost without using water in preparing casting coat, with suspension rate, non deposit, and high anti-adhesive property.
Description
Technical field:
The present invention relates to suspending agent, be specifically related to a kind of production method of alcohol-based concave-convex stick suspending agent.
Background technology:
Characteristics such as the cast paint that uses the alcohol radical suspending agent to make has fast drying, flammability is good and applied widely, in China's Foundry Production, begun to have obtained application, the problem of alcohol radical suspending agent existence at present mainly shows as dispersion suspension and poor stability, coating easily produces precipitation and caking in long-term storage and transportation, next is that thixotropy is relatively poor, influences the surface quality of foundry goods.
Good dispersed suspending agent can not only guarantee the dispersing uniformity of each component of coating and the suspension effect of coating effectively, and can also improve the brushability of coating, helps applying, and improves the surface quality of coating and foundry goods.Sodium bentonite is one of alcohol radical suspending agent primary raw material, but its swellability in alcoholic solution is bad, the dispersion suspension weak effect; Lithium bentonite is a kind of alcohol radical suspending agent raw material newly developed, but selling price is higher, and wants water to cause in advance, and bringing water into coating can influence its combustion efficiency, and coating is easy to generate phenomenons such as crackle, peeling.
Chinese patent Granted publication CN1038817, Granted publication day is on June 24th, 1998, name is called: " a kind of composite dispersed suspending agent that is used for cast paint ", disclose: " a kind of composite dispersed suspending agent that is used for cast paint; when the coating that is used for water or organic solvent, it is respectively by 75～85% rectorites; 3～5% tertiary sodium phosphates; 8～12% sodium phosphate trimers; 4～10% sodium carboxymethylcelluloses or 65～78% rectorites; 10～18% tertiary sodium phosphates, 2～5% sodium phosphate trimers, 2～8% polyvinyl butyral resins, 2～5% polyethylene glycol, 1～4% calcium stearate is formed.It is good to adopt the present invention to make the suspension and the crack resistance of the coating that dispersed suspending agent produces, the refractoriness height, thixotropy and brushability are good, long-time place be difficult for precipitate, do not lump, do not harden, easily stirring, redispersibility is good, and low cost of manufacture ".
Use the primary raw material of rectorite in the foregoing invention, recognize that according to retrieval its effect is relatively good, but production cost is still higher, be unfavorable for popularizing in an all-round way use as suspending agent.
Summary of the invention:
The objective of the invention is to overcome weak point in the prior art, provide a kind of production technology simple, cheap, suspensibility, plasticity, caking property, lubricity and heat endurance be the production method of reasonable alcohol-based concave-convex stick suspending agent all.
Alcohol-based concave-convex stick suspending agent is made up of Concave-convex clay rod, bentonite, magnesia, sodium metasilicate and polyethylene glycol.
Concave-convex clay rod has unique rod-like fibre crystal shape structure, formed space structure is difficult for being opened, viscosity can be up to more than the 3000mpa.s, dry post-shrinkage ratio is less, dryout or sintering after do not crack, be better than other clay with its excellent caking property, suspension and thickening property, the refractoriness of Concave-convex clay rod is a bit weaker.
The bentonite absorption speed is slow, but water absorption rate and expansion multiple are big, can adsorb 8～15 times of water yields to this volume, dryout or sintering after easily crack, refractoriness is better.
Magnesia can improve Concave-convex clay rod and bentonitic dispersion viscosity, suspendability and refractoriness.
The sodium metasilicate cementitiousness derives from the silicon gel, so be widely used as binding agent, plays the effect that increases stability in the batching of alcohol-based concave-convex stick suspending agent.
Polyethylene glycol carries out modification to Concave-convex clay rod and bentonite, makes both performances obtain complementation, has guaranteed that alcohol-based concave-convex stick suspending agent can have suspensibility, plasticity and stability preferably.
The present invention is achieved by following technical proposals:
1, the production method of alcohol-based concave-convex stick suspending agent is:
Concave-convex clay rod, bentonite, magnesia, sodium metasilicate and polyethylene glycol are mixed by the batching requirement, add water in the input fermentation vat after mixing and soak, soak time was controlled at 24～72 hours; Mixture after soaking input twin rollers pushed be tablet, the THICKNESS CONTROL of tablet is carried out airing at 0.5～2.0 millimeter with tablet, the water content of tablet≤13% after the airing, the input grinding machine carries out abrasive dust, and grain fineness≤0.044 millimeter is packaged as finished product.
2, the batching of alcohol-based concave-convex stick suspending agent comprises following component by weight percentage: Concave-convex clay rod 65～85%, bentonite 5～25%, magnesia 1～5%, sodium metasilicate 1～8%, polyethylene glycol 0.05～5%.
The alcohol-based concave-convex stick suspending agent production technology is simple, and cost is very cheap, does not need water to cause when making alcohol-base foundry coating, have suspensibility height, brushing performance good, do not precipitate, do not lump, good fluidity and the strong characteristics of anti-stick grittiness.The caking property of alcohol-based concave-convex stick suspending agent, thixotropy, lubricity, refractoriness, flammability, heat endurance, hot green tensile strength and dry-pressing intensity all are greatly improved than other similar alcohol radical suspending agent.The suspensibility of alcohol-based concave-convex stick suspending agent in ethanol: 8 hours 〉=99.5%, 24 hour 〉=99.0%, 72 hour 〉=98.0%, 15 day 〉=95.0%.
Alcohol-based concave-convex stick suspending agent is applicable to the making alcohol-base foundry coating.
The specific embodiment:
Below in conjunction with embodiment, the invention will be further described:
1, the production method of alcohol-based concave-convex stick suspending agent is:
Concave-convex clay rod, bentonite, magnesia, sodium metasilicate and polyethylene glycol are mixed by the batching requirement, add water in the input fermentation vat after mixing and soak, soak time was controlled at 24 hours; Mixture after soaking input twin rollers pushed be tablet, the THICKNESS CONTROL of tablet is carried out airing at 1.0 millimeters with tablet, the water content of tablet≤13% after the airing, the input grinding machine carries out abrasive dust, and grain fineness≤0.044 millimeter is packaged as finished product.
2, the batching of alcohol-based concave-convex stick suspending agent comprises following component by weight percentage: Concave-convex clay rod 80%, bentonite 9%, magnesia 3%, sodium metasilicate 6% and polyethylene glycol 2%.
Claims (1)
1. the production method of an alcohol-based concave-convex stick suspending agent, it is characterized in that, Concave-convex clay rod, bentonite, magnesia, sodium metasilicate and polyethylene glycol are mixed by the batching requirement, add water in the input fermentation vat after mixing and soak, soak time was controlled at 24～72 hours; Mixture after soaking input twin rollers pushed be tablet, the THICKNESS CONTROL of tablet is carried out airing at 0.5～2.0 millimeter with tablet, the water content of tablet≤13% after the airing, the input grinding machine carries out abrasive dust, and grain fineness≤0.044 millimeter is packaged as finished product;
The batching of described alcohol-based concave-convex stick suspending agent comprises following component by weight percentage: Concave-convex clay rod 65～85%, bentonite 5～25%, magnesia 1～5%, sodium metasilicate 1～8%, polyethylene glycol 0.05～5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNB2006100884690A CN100388990C (en) | 2006-08-25 | 2006-08-25 | Production method of alcohol-based concave-convex stick suspending agent |
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| CNB2006100884690A CN100388990C (en) | 2006-08-25 | 2006-08-25 | Production method of alcohol-based concave-convex stick suspending agent |
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| CN1923402A CN1923402A (en) | 2007-03-07 |
| CN100388990C true CN100388990C (en) | 2008-05-21 |
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| CNB2006100884690A Expired - Fee Related CN100388990C (en) | 2006-08-25 | 2006-08-25 | Production method of alcohol-based concave-convex stick suspending agent |
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Families Citing this family (13)
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| CN101759193B (en) * | 2008-12-25 | 2012-09-05 | 温州大学 | Preparing method for SiO2 coating pyrophyllite powder |
| CN101607298B (en) * | 2009-07-02 | 2010-12-29 | 沈阳铸造研究所 | Attapulgite suspending agent for casting alcohol-based coating and preparation method thereof |
| CN102424537B (en) * | 2011-09-06 | 2012-12-05 | 浙江大学 | Method for preparing aluminum phosphate compounded binding agent by using clay mineral as raw material |
| CN102371335B (en) * | 2011-10-11 | 2016-01-20 | 华文蔚 | A kind of preparation method of casting alcohol-based coating |
| CN102371334B (en) * | 2011-10-11 | 2016-01-20 | 华文蔚 | A kind of preparation method of casting alcohol-based coating suspending agent |
| CN102627341B (en) * | 2012-04-17 | 2013-06-12 | 西北师范大学 | Palygorskite-clay composite flocculating agent for adsorbing lignosulfonate in water phase and preparation thereof |
| CN102836949B (en) * | 2012-08-22 | 2014-12-31 | 成都银河动力有限公司 | Manufacturing method of heat insulation spray coating for centrifugally casting cylinder sleeve |
| CN102873267B (en) * | 2012-10-19 | 2014-12-24 | 南京信息工程大学 | Alcohol-based paint for sand casting and preparation method thereof |
| CN104439046A (en) * | 2014-11-08 | 2015-03-25 | 芜湖市鸿坤汽车零部件有限公司 | City building waste alcohol-based casting coating and preparation method of city building waste alcohol-based casting coating |
| CN104923719B (en) * | 2015-05-14 | 2017-04-19 | 江苏玖川纳米材料科技有限公司 | Production method of environment-friendly dual-purpose coating suspending agent |
| CN106378414A (en) * | 2016-10-10 | 2017-02-08 | 佛山市高明区明城镇新能源新材料产业技术创新中心 | Casting paint good in liquidity, and preparing method and using method of paint |
| CN108423687A (en) * | 2018-03-30 | 2018-08-21 | 安徽博硕科技有限公司 | A kind of preparation method of concave convex rod plasticity ball clay |
| CN108456447A (en) * | 2018-03-30 | 2018-08-28 | 安徽博硕科技有限公司 | A kind of preparation method of concave-convex stick suspending agent |
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