CN107598074A - A kind of glass sand method of modifying - Google Patents
A kind of glass sand method of modifying Download PDFInfo
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- CN107598074A CN107598074A CN201710913053.6A CN201710913053A CN107598074A CN 107598074 A CN107598074 A CN 107598074A CN 201710913053 A CN201710913053 A CN 201710913053A CN 107598074 A CN107598074 A CN 107598074A
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- glass sand
- carboxymethyl cellulose
- surface modifier
- coupling agent
- modifying
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Abstract
The present invention relates to a kind of glass sand method of modifying, it is characterised in that：Comprise the following steps：Glass sand is subjected to impurity elimination drying, 80~85 DEG C is then preheated to, is placed in puddle mixer, adds glass sand surface modifier, 50~70s is mixed, obtains modified glass sand；Raw material sources that modifying agent of the present invention is related to are wide, cost is low and safe and non-toxic；The method that modifying agent of the present invention is modified to glass sand is simple, and processing procedure green pollution-free；The activity on glass sand surface can be greatly enhanced in modifying agent of the present invention, optimize its adhesion with resin etc. between organic binder bond；And gained modified glass sand can be stable in long-time retention property, when being applied to cold-box process coremaking, can significantly reduce glass sand cost needed for casting technique.
Description
Technical field
The present invention relates to Mining Market field, more particularly to a kind of glass sand method of modifying.
Background technology
The surface state of glass sand is very big on the influence of whole casting process, therefore is needed before being mixed with binding agent to glass
Glass sand is surface-treated, and is typically broadly divided into physics-Mechanical Method and chemical method to the method for glass sand surface treatment.Physics
- Mechanical Method includes cleaning the glass sand of collection, magnetic separation, flotation etc., this method major defect is that refining effect is bad and consume
Can be big.Chemical method is mainly handled with inorganic acid and reducing agent, though having lifting by this method glass sand performance, is used
Chemical reagent is more, and easily environment is polluted and cost remains high.
At present, have tried to handle glass sand surface using polyvinyl alcohol, glass sand performance is had to a certain degree
Lifting, but after polyvinyl alcohol modification the performance of glass sand change with time it is unstable, and by environment shadow in modifying process
Sound is larger, is also easy to produce side effect, makes glass sand hydraulic performance decline on the contrary.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of method of modifying of glass sand, using glass sand modifying agent to glass
Glass sand carries out surface modification, and the modifying agent raw material sources are wide, cost is low and safety and environmental protection, the work on energy significantly strengthened glass sand surface
Property, the performance of modified glass sand is keeping stable for a long time.
In order to solve the above technical problems, the technical scheme is that：A kind of glass sand method of modifying, its innovative point exist
In：Comprise the following steps：Glass sand is subjected to impurity elimination drying, 80~85 DEG C is then preheated to, is placed in puddle mixer, is added
Glass sand surface modifier, 50~70s is mixed, obtains modified glass sand；
Mass percent shared by each component is in the glass sand surface modifier：Carboxymethyl cellulose 3.5~5%, ten
Dialkyl group sulfoacid calcium 1.2~2%, coupling agent 0.6~1%, remaining is water；
The viscosity requirement of the carboxymethyl cellulose be the aqueous solution that its mass concentration is 3% viscosity 0.15~
Between 0.3Pas；
The coupling agent is γ-methacryloxypropyl trimethoxy silane；
The mass ratio of the casting glass sand and casting glass sand surface modifier is (60~65):1.
The preparation method of the glass sand surface modifier comprises the following steps：
1) raw material weighs, and shared by each component mass percent is：Carboxymethyl cellulose 3.5~5%, dodecyl sulphur
Sour calcium 1.2~2%, coupling agent 0.6~1%, remaining is water；
2) it is under 70~75 DEG C of water bath condition, carboxymethyl cellulose is soluble in water under agitation, prepare carboxylic first
Base cellulose aqueous solution, is subsequently cooled to normal temperature；
3) weigh and supplement the moisture that carboxymethyl cellulose aqueous solution obtained by step 2) evaporates, then add coupling agent,
Dodecyl sodium sulfonate calcium, it is mixed and stirred for uniformly, obtaining the glass sand surface modifier.
The advantage of the invention is that：
1）Raw material sources that modifying agent of the present invention is related to are wide, cost is low and safe and non-toxic.Modifying agent of the present invention is to glass
The method that glass sand is modified is simple, and processing procedure green pollution-free.Glass can be greatly enhanced in modifying agent of the present invention
The activity on sand surface, optimize its adhesion with resin etc. between organic binder bond；And gained modified glass sand can be for a long time
Retention property is stable, when being applied to cold-box process coremaking, can significantly reduce glass sand cost needed for casting technique.
Embodiment
The following examples can make professional and technical personnel that the present invention be more fully understood, but therefore not send out this
It is bright to be limited among described scope of embodiments.
Embodiment 1：A kind of glass sand method of modifying, comprises the following steps：Glass sand is subjected to impurity elimination drying, then in advance
Heat is placed in puddle mixer to 80 DEG C, adds glass sand surface modifier, is mixed 50 s, is obtained modified glass sand；
Mass percent shared by each component is in the glass sand surface modifier：Carboxymethyl cellulose 3.5%, dodecyl
Sulfoacid calcium 1.2%, coupling agent 0.6%, remaining is water；
The viscosity requirement of the carboxymethyl cellulose be the aqueous solution that its mass concentration is 3% viscosity 0.15Pas it
Between；
The coupling agent is γ-methacryloxypropyl trimethoxy silane；
The mass ratio of the casting glass sand and casting glass sand surface modifier is 60:1.
The preparation method of the glass sand surface modifier comprises the following steps：
1) raw material weighs, and shared by each component mass percent is：Carboxymethyl cellulose 3.5%, dodecyl sodium sulfonate calcium
1.2%th, coupling agent 0.6%, remaining is water；
2) it is under 70 DEG C of water bath condition, carboxymethyl cellulose is soluble in water under agitation, prepare carboxymethyl cellulose
The plain aqueous solution, is subsequently cooled to normal temperature；
3) weigh and supplement the moisture that carboxymethyl cellulose aqueous solution obtained by step 2) evaporates, then add coupling agent,
Dodecyl sodium sulfonate calcium, it is mixed and stirred for uniformly, obtaining the glass sand surface modifier.
Embodiment 2：
A kind of glass sand method of modifying, comprises the following steps：Glass sand is subjected to impurity elimination drying, 79 DEG C is then preheated to, is placed in
In puddle mixer, glass sand surface modifier is added, 60s is mixed, obtains modified glass sand；
Mass percent shared by each component is in the glass sand surface modifier：Carboxymethyl cellulose 4.25%, dodecane
Base sulfoacid calcium 1.6%, coupling agent 0.8%, remaining is water；
The viscosity requirement of the carboxymethyl cellulose be the aqueous solution that its mass concentration is 3% viscosity 0.3Pas it
Between；
The coupling agent is γ-methacryloxypropyl trimethoxy silane；
The mass ratio of the casting glass sand and casting glass sand surface modifier is 63:1.
The preparation method of the glass sand surface modifier comprises the following steps：
1) raw material weighs, and shared by each component mass percent is：The % of carboxymethyl cellulose 4.25, dodecyl sodium sulfonate
Calcium 1.6%, coupling agent 0.8%, remaining is water；
2) it is under 73 DEG C of water bath condition, carboxymethyl cellulose is soluble in water under agitation, prepare carboxymethyl cellulose
The plain aqueous solution, is subsequently cooled to normal temperature；
3) weigh and supplement the moisture that carboxymethyl cellulose aqueous solution obtained by step 2) evaporates, then add coupling agent,
Dodecyl sodium sulfonate calcium, it is mixed and stirred for uniformly, obtaining the glass sand surface modifier.
Embodiment 3：
A kind of glass sand method of modifying, its innovative point are：Comprise the following steps：Glass sand is subjected to impurity elimination drying, then in advance
Heat is placed in puddle mixer to 85 DEG C, adds glass sand surface modifier, is mixed 70s, is obtained modified glass sand；
Mass percent shared by each component is in the glass sand surface modifier：Carboxymethyl cellulose 5%, dodecyl sulphur
Sour calcium 2%, coupling agent 1%, remaining is water；
The viscosity requirement of the carboxymethyl cellulose be the aqueous solution that its mass concentration is 3% viscosity 0.3Pas it
Between；
The coupling agent is γ-methacryloxypropyl trimethoxy silane；
The mass ratio of the casting glass sand and casting glass sand surface modifier is 65:1.
The preparation method of the glass sand surface modifier comprises the following steps：
1) raw material weighs, and shared by each component mass percent is：Carboxymethyl cellulose 5%, dodecyl sodium sulfonate calcium
2%th, coupling agent 1%, remaining is water；
2) it is under 75 DEG C of water bath condition, carboxymethyl cellulose is soluble in water under agitation, prepare carboxymethyl cellulose
The aqueous solution, it is subsequently cooled to normal temperature；
3) weigh and supplement the moisture that carboxymethyl cellulose aqueous solution obtained by step 2) evaporates, then add coupling agent,
Dodecyl sodium sulfonate calcium, it is mixed and stirred for uniformly, obtaining the glass sand surface modifier.
It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, above-described embodiment and explanation
Merely illustrating the principles of the invention described in book, without departing from the spirit and scope of the present invention, the present invention also have
Various changes and modifications, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention
By appended claims and its equivalent thereof.
Claims (2)
- A kind of 1. glass sand method of modifying, it is characterised in that：Comprise the following steps：Glass sand is subjected to impurity elimination drying, then in advance Heat is placed in puddle mixer to 80~85 DEG C, adds glass sand surface modifier, is mixed 50~70s, is obtained modified glass Sand；Mass percent shared by each component is in the glass sand surface modifier：Carboxymethyl cellulose 3.5~5%, ten Dialkyl group sulfoacid calcium 1.2~2%, coupling agent 0.6~1%, remaining is water；The viscosity requirement of the carboxymethyl cellulose be the aqueous solution that its mass concentration is 3% viscosity 0.15~ Between 0.3Pas；The coupling agent is γ-methacryloxypropyl trimethoxy silane；The mass ratio of the casting glass sand and casting glass sand surface modifier is (60~65):1.
- 2. glass sand method of modifying according to claim 1, it is characterised in that：The system of the glass sand surface modifier Preparation Method comprises the following steps：1) raw material weighs, and shared by each component mass percent is：Carboxymethyl cellulose 3.5~5%, dodecyl sulphur Sour calcium 1.2~2%, coupling agent 0.6~1%, remaining is water；2) it is under 70~75 DEG C of water bath condition, carboxymethyl cellulose is soluble in water under agitation, prepare carboxylic first Base cellulose aqueous solution, is subsequently cooled to normal temperature；3) weigh and supplement the moisture that carboxymethyl cellulose aqueous solution obtained by step 2) evaporates, then add coupling agent, Dodecyl sodium sulfonate calcium, it is mixed and stirred for uniformly, obtaining the glass sand surface modifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710913053.6A CN107598074A (en) | 2017-09-30 | 2017-09-30 | A kind of glass sand method of modifying |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710913053.6A CN107598074A (en) | 2017-09-30 | 2017-09-30 | A kind of glass sand method of modifying |
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| CN107598074A true CN107598074A (en) | 2018-01-19 |
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| CN201710913053.6A Pending CN107598074A (en) | 2017-09-30 | 2017-09-30 | A kind of glass sand method of modifying |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108751211A (en) * | 2018-07-07 | 2018-11-06 | 河源市极致知管信息科技有限公司 | A kind of preparation method of Modified Quartz Sand |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104959526A (en) * | 2015-07-29 | 2015-10-07 | 武汉理工大学 | Modifying method for casting silica sand |
-
2017
- 2017-09-30 CN CN201710913053.6A patent/CN107598074A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104959526A (en) * | 2015-07-29 | 2015-10-07 | 武汉理工大学 | Modifying method for casting silica sand |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108751211A (en) * | 2018-07-07 | 2018-11-06 | 河源市极致知管信息科技有限公司 | A kind of preparation method of Modified Quartz Sand |
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Application publication date: 20180119 |