CN110479952A - Furan resin casting sand mask agent and preparation method thereof - Google Patents
Furan resin casting sand mask agent and preparation method thereof Download PDFInfo
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- CN110479952A CN110479952A CN201910700316.4A CN201910700316A CN110479952A CN 110479952 A CN110479952 A CN 110479952A CN 201910700316 A CN201910700316 A CN 201910700316A CN 110479952 A CN110479952 A CN 110479952A
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- mask agent
- furan resin
- furane resins
- casting sand
- resin casting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
- B22C1/02—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
- B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
- B22C1/20—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents
- B22C1/22—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents of resins or rosins
- B22C1/2233—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents of resins or rosins obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- B22C1/224—Furan polymers
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Abstract
The present invention relates to a kind of furan resin casting sand mask agents and preparation method thereof.The chemical component of the furan resin casting sand mask agent includes anhydrous methanol, glyceryl triacetate, diglycol, lilial, peach aldehyde, salicylic acid benzyl ester, ethyl isovalerate, diatomite, dipropylene glycol, allyl heptanoate, methyl phenyl carbinyl acetate, diethyl phthalate, tridecandioic acid ring ethylene ester, ethyl acetate, jasmonal H, 2- (2 '-hydroxyls -3 ', 5 '-two tertiary phenyl) -5- chlorination benzotriazole, nano titanium dioxide powder.Furan resin casting sand mask agent of the present invention is sprayed in the moulding of furan resin-sand and casting place and using the furane resins for containing mask agent of the present invention, it can effectively adsorb and reduce the harmful substances such as the free formaldehyde, toluene, dimethylbenzene evaporated, light fragrance is given out simultaneously, improves operation field.
Description
Technical field
The present invention relates to casting field, in particular to a kind of furan resin casting sand mask agent and preparation method thereof.
Background technique
Furane resins are widely used in Foundry Production in recent years, especially ureaformaldehyde furane resins, by feat of having
The advantages that low viscosity, high intensity, resistance to strong acid, resistance to highly basic, heat-resisting quantity are good, collapsibility is good, synthesis technology is simple is rapidly by generation
The extensive attention of various countries, boundary foundry industry, and furan resin self curing sand technique has voluntarily hardening, low energy consumption, production under room temperature
The advantages that high-efficient, the old sand rate of recovery is high, production casting dimension accuracy is high, surface quality of continuous castings is good, so in China's furans
It is at most a kind of that resin becomes casting resin amount.But with the rapid development of our country's economy with the increasing of domestic casting industry demand
Add, founding materials especially self-hardening furan resin field is rapidly developed, however what is generated therewith is exactly foundry
The processing of environmental health problems.And environmental protection, health problem are a hot topics of current social, in environment worsening
Today, produce the common objective that a kind of reliable furane resins of nontoxic and service performance are founding materials research staff, still
There is the saying of " no aldehyde not plastic " in adhesive field, as the maximum ureaformaldehyde furane resins of dosage, formaldehyde is its main original
Material, but formaldehyde easily causes human body allotriosmia, allergy, abnormal pulmonary function and immunologic dysfunction, is that generally acknowledged allergy is anti-
One of Ying Yuan, and potential strong carcinogen.Free formaldehyde can be waved in the operation of the storage of resin, use and casting resin sand
It issues, the health of staff is caused to seriously threaten, and work under such circumstances for a long time, easily initiation throat
The respiratory diseases such as sub- hair shaft, nausea, nasosinusitis, pharyngitis, long-term chronic stimulation can cause mucous hyperemia, serious to cause
Leukaemia.It furthermore also can be in resin with the harmful substances such as toluene, dimethylbenzene in the matching used sulfonic acid curing agent of furane resins
It is evaporated in the moulding and casting of sand.So on the one hand improving the environmental-protecting performance of resin itself, such as reduces resin itself and dissociate
The content of formaldehyde, but this can only reduce the volatilization of free formaldehyde during the storage of resin, and how resin storage, make
With with the harmful substances such as free formaldehyde, toluene, dimethylbenzene are reduced in overall flow in the operation of casting resin sand, be pendulum in vast casting
Make important topic in the urgent need to address in face of researcher.
The dedicated mask agent of furan resin-sand is joint product made of a kind of organic chemicals are mixed, main to form: taste masking
Agent, fragrance and dispersant with high efficiency, working principle: be with mask agent, natural perfume material, synthetic perfume, high-efficiency absorbent, through having
Machine is mutually changed and special process processing refines, it is by the way that during its volatilization, absorbent can ooze out into film liquid surface
It goes to capture uncomfortable molecule, forms masking net in film coated surface while adsorbing monomer peculiar smell, reduce free formaldehyde, toluene, diformazan
The volatilization of the organic matters such as benzene, while achieving the effect that taste masking, de-tasting, and not with resin reaction, to the normal use of resin without
It influences.So spraying the screening in the moulding of furan resin-sand and casting place while the mask agent is added in furane resins
Taste agent can be adsorbed effectively and reduce the harmful substances such as the free formaldehyde, toluene, dimethylbenzene evaporated, while given out light
Fragrance, improve operation field.
Prior art shortage thoroughly solves common ureaformaldehyde furane resins free formaldehyde volatilization, phenolic sand molding and casting process
The volatilization of the harmful substances such as middle free formaldehyde, toluene, dimethylbenzene operates live the problems such as the smell is awful.
Summary of the invention
Based on this, it is necessary to thoroughly solve common ureaformaldehyde furane resins free formaldehyde volatilization, tree for prior art shortage
The volatilization of the harmful substances such as free formaldehyde, toluene, dimethylbenzene in rouge sand molding and casting process, the smell is awful etc. at operation scene asks
Topic, by technological innovation, the present invention provides a kind of furan resin casting sand mask agents and preparation method thereof.
To solve above-mentioned deficiency, the technical solution adopted by the present invention are as follows:
A kind of furan resin casting sand mask agent, the chemical component of the furan resin casting sand mask agent is according to weight
Amount percentages, specially anhydrous methanol 10%~20%, glyceryl triacetate 20%~40%, diglycol 15%~
45%, lilial 1%~3%, peach aldehyde 1%~3%, salicylic acid benzyl ester 1%~6%, ethyl isovalerate 0.01%~0.03%, silicon
Diatomaceous earth 7%~11%, dipropylene glycol 0.01%~0.03%, allyl heptanoate 0.01%~0.03%, acetic acid storax
Ester 0%~0.2%, diethyl phthalate 0.01%~0.03%, tridecandioic acid ring ethylene ester 0.01%~0.03%,
Ethyl acetate 0.99%~1.01%, α-hexyl cortex cinnamomi 1%~9%, 2- (2 '-hydroxyls -3 ', 5 '-two tertiary phenyl) -5- chlorination
Benzotriazole 0.6%~1%, nano titanium dioxide powder 1%~3%.
The preparation method of furan resin casting sand mask agent as described above, includes the following steps:
S1: by anhydrous methanol, diglycol, dipropylene glycol, diethyl phthalate and ethyl acetate according to
It is secondary to be added in reaction kettle, it stirs evenly；
S2: again by glyceryl triacetate, lilial, peach aldehyde, salicylic acid benzyl ester, ethyl isovalerate, diatomite, enanthic acid allyl
Ester, methyl phenyl carbinyl acetate, tridecandioic acid ring ethylene ester, jasmonal H, 2- (2 '-hydroxyls -3 ', 5 '-two tertiary phenyl) -
5- chlorination benzotriazole, nanometer titanium dioxide titanium valve are added in reaction kettle after processing, and 30~60min of stirring goes out kettle.
Further, the revolving speed of stirred tank is 500~800r/min in the S1.
Further, the revolving speed of stirred tank is 800~1200r/min in the S2.
A kind of furane resins containing mask agent, the furane resins containing mask agent are by that will cast as described above
Furan resin-sand is added to stir in the furane resins of finished product with mask agent and is made.
Further, the revolving speed when stirring is 60~120r/min, and mixing time is 30~60min.
The beneficial effects of the present invention are:
(1) the free formaldehyde detection level of general ureaformaldehyde furane resins binder contains the mask agent 0.3% or so
Furane resins binder free formaldehyde detection level be 0.03% or so, free formaldehyde reduce by 90%.
(2) the free formaldehyde detection level of environment-friendly type ureaformaldehyde furane resins binder contains the mask agent 0.1% or so
Furane resins binder free formaldehyde detection level be 0.03% or so, free formaldehyde reduce by 70%.
(3) general ureaformaldehyde furane resins binder is with methylene oxide detecting instrument measurement content of formaldehyde in modeling process
78ppm or so, the furane resins binder containing the mask agent measure content of formaldehyde only with methylene oxide detecting instrument in modeling process
To significantly reduce for 5.8ppm or so.
(4) environment-friendly type ureaformaldehyde furane resins binder is with methylene oxide detecting instrument measurement content of formaldehyde in modeling process
56ppm or so, the furane resins binder containing the mask agent measure content of formaldehyde only with methylene oxide detecting instrument in modeling process
To significantly reduce for 5.8ppm or so.
(5) general ureaformaldehyde furane resins binder is with methylene oxide detecting instrument measurement content of formaldehyde in casting process
35ppm or so, the furane resins binder containing the mask agent measure content of formaldehyde only with methylene oxide detecting instrument in modeling process
To significantly reduce for 3.6ppm or so.
(6) environment-friendly type ureaformaldehyde furane resins binder is with methylene oxide detecting instrument measurement content of formaldehyde in casting process
25ppm or so, the furane resins binder containing the mask agent measure content of formaldehyde only with methylene oxide detecting instrument in modeling process
To significantly reduce for 3.6ppm or so.
(7) general ureaformaldehyde furane resins binder have in modeling process the people that significantly chokes, irritating formaldehyde taste,
The taste of toluene or dimethylbenzene taste and furane resins, the furane resins binder containing the mask agent have light in modeling process
Light fruit flavor, foundry's smell are thoroughly improved.
(8) environment-friendly type ureaformaldehyde furane resins binder have in modeling process the people that significantly chokes, irritating formaldehyde taste,
The taste of toluene or dimethylbenzene taste and furane resins, the furane resins binder containing the mask agent have light in modeling process
Light fruit flavor, foundry's smell are thoroughly improved.
Specific embodiment
To facilitate the understanding of the present invention, below with reference to related embodiment to invention is more fully described.Implement
Better embodiment of the invention is given in example.But the invention can be realized in many different forms, however it is not limited to
Embodiments described herein.On the contrary, the purpose of providing these embodiments is that making to understand the disclosure
It is more thorough and comprehensive.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more
Any and all combinations of relevant listed item.
Understand combined with specific embodiments below:
A kind of furan resin casting sand mask agent, the chemical component of the furan resin casting sand mask agent is according to weight
Amount percentages, specially anhydrous methanol 10%~20%, glyceryl triacetate 20%~40%, diglycol 15%~
45%, lilial 1%~3%, peach aldehyde 1%~3%, salicylic acid benzyl ester 1%~6%, ethyl isovalerate 0.01%~0.03%, silicon
Diatomaceous earth 7%~11%, dipropylene glycol 0.01%~0.03%, allyl heptanoate 0.01%~0.03%, acetic acid storax
Ester 0%~0.2%, diethyl phthalate 0.01%~0.03%, tridecandioic acid ring ethylene ester 0.01%~0.03%,
Ethyl acetate 0.99%~1.01%, α-hexyl cortex cinnamomi 1%~9%, 2- (2 '-hydroxyls -3 ', 5 '-two tertiary phenyl) -5- chlorination
Benzotriazole 0.6%~1%, nano titanium dioxide powder 1%~3%.
The preparation method of furan resin casting sand mask agent as described above, includes the following steps:
S1: by anhydrous methanol, diglycol, dipropylene glycol, diethyl phthalate and ethyl acetate according to
It is secondary to be added in reaction kettle, it stirs evenly, 500~800r/min of revolving speed；
S2: again by glyceryl triacetate, lilial, peach aldehyde, salicylic acid benzyl ester, ethyl isovalerate, diatomite, enanthic acid allyl
Ester, methyl phenyl carbinyl acetate, tridecandioic acid ring ethylene ester, jasmonal H, 2- (2 '-hydroxyls -3 ', 5 '-two tertiary phenyl) -
5- chlorination benzotriazole, nanometer titanium dioxide titanium valve are added in reaction kettle after processed, stir 30~60min；Revolving speed 800~
1200r/min。
A kind of furane resins containing mask agent, the furane resins containing mask agent are by that will cast as described above
Furan resin-sand is added to stir in the furane resins of finished product with mask agent and is made, and revolving speed when stirring is 60~120r/min,
Mixing time is 30~60min.
Embodiment 1
Anhydrous methanol 15%, glyceryl triacetate 30%, diglycol 30%, lilial 2%, peach aldehyde 2%, willow
Acid benzyl ester 3%, ethyl isovalerate 0.02%, diatomite 10%, dipropylene glycol 0.02%, allyl heptanoate 0.02%, second
Sour styracin 0.01%, diethyl phthalate 0.02%, tridecandioic acid ring ethylene ester 0.02%, ethyl acetate 1%,
α-hexyl cortex cinnamomi 4%, 2- (2 '-hydroxyls -3 ', 5 '-two tertiary phenyl) -5- chlorination benzotriazole 0.89%, nanometer titanium dioxide titanium valve
End 2%.
I, is by anhydrous methanol 1500g, diglycol 3000g, dipropylene glycol 2g, diethyl phthalate
2g, ethyl acetate 100g are added sequentially in 50L reaction kettle, start stirring, 500~800r/min of revolving speed, and mixing time 10~
20min.Again by glyceryl triacetate 3000g, lilial 200g, peach aldehyde 200g, salicylic acid benzyl ester 300g, ethyl isovalerate 2g, silicon
Diatomaceous earth 1000g, allyl heptanoate 2g, methyl phenyl carbinyl acetate 1g, tridecandioic acid ring ethylene ester 2g, jasmonal H 400g,
2- (2 '-hydroxyls -3 ', 5 '-two tertiary phenyl) -5- chlorination benzotriazole 89g, nanometer titanium dioxide titanium valve 200g pass through special process
Be added in reaction kettle after processed, start stirring, 800~1200r/min of revolving speed, 30~60min of mixing time go out kettle to get
The dedicated mask agent of furan resin-sand.
The dedicated mask agent of obtained furan resin-sand is added to (the mask agent addition of stirring in the furane resins of finished product by II,
‰) amount accounts for weight resin 2,60~80r/min of revolving speed, 30~60min of mixing time is to get the furane resins containing mask agent.
It is appropriate that III, sprays the mask agent in the moulding of furan resin-sand and casting place.
The free formaldehyde detection level of furane resins binder containing the mask agent is 0.02%, contains the mask agent
Furane resins binder is 5.00ppm with methylene oxide detecting instrument measurement content of formaldehyde in modeling process；Formaldehyde is used in casting process
It is 3.45ppm that detector, which measures content of formaldehyde,；And scene is without obvious irritation formaldehyde taste, toluene or dimethylbenzene taste and furans tree
The taste of rouge instead light fruit flavor.
Embodiment 2
Anhydrous methanol 20%, glyceryl triacetate 28%, diglycol 28%, lilial 2%, peach aldehyde 2%, willow
Acid benzyl ester 3%, ethyl isovalerate 0.02%, diatomite 3%, dipropylene glycol 0.02%, allyl heptanoate 0.02%, acetic acid
Styracin 0.01%, diethyl phthalate 0.02%, tridecandioic acid ring ethylene ester 0.02%, ethyl acetate 1%, α-
Hexyl cortex cinnamomi 4%, 2- (2 '-hydroxyls -3 ', 5 '-two tertiary phenyl) -5- chlorination benzotriazole 0.89%, nano titanium dioxide powder
3%.
I, is by anhydrous methanol 2000g, diglycol 2800g, dipropylene glycol 2g, diethyl phthalate
2g, ethyl acetate 100g are added sequentially in 50L reaction kettle, start stirring, 500~800r/min of revolving speed, and mixing time 10~
20min.Again by glyceryl triacetate 2800g, lilial 200g, peach aldehyde 200g, salicylic acid benzyl ester 300g, ethyl isovalerate 2g, silicon
Diatomaceous earth 800g, allyl heptanoate 2g, methyl phenyl carbinyl acetate 1g, tridecandioic acid ring ethylene ester 2g, α~jasminolene 400g,
2- (2 '-hydroxyls -3 ', 5 '-two tertiary phenyl) -5- chlorination benzotriazole 89g, nanometer titanium dioxide titanium valve 300g pass through special process
Be added in reaction kettle after processed, start stirring, 800~1200r/min of revolving speed, 30~60min of mixing time go out kettle to get
The dedicated mask agent of furan resin-sand.
The dedicated mask agent of obtained furan resin-sand is added to (the mask agent addition of stirring in the furane resins of finished product by II,
‰) amount accounts for weight resin 2,60~80r/min of revolving speed, 30~60min of mixing time is to get the furane resins containing mask agent.
It is appropriate that III, sprays the mask agent in the moulding of furan resin-sand and casting place.
The free formaldehyde detection level of furane resins binder containing the mask agent is 0.03%, contains the mask agent
Furane resins binder is 5.23ppm with methylene oxide detecting instrument measurement content of formaldehyde in modeling process；Formaldehyde is used in casting process
It is 4.15ppm that detector, which measures content of formaldehyde,；And scene is without obvious irritation formaldehyde taste, toluene or dimethylbenzene taste and furans tree
The taste of rouge instead light fruit flavor.
Embodiment 3
Anhydrous methanol 18%, glyceryl triacetate 26%, diglycol 32%, lilial 2%, peach aldehyde 2%, willow
Acid benzyl ester 3%, ethyl isovalerate 0.02%, diatomite 9%, dipropylene glycol 0.02%, allyl heptanoate 0.02%, acetic acid
Styracin 0.01%, diethyl phthalate 0.02%, tridecandioic acid ring ethylene ester 0.02%, ethyl acetate 1%, α-
Hexyl cortex cinnamomi 4%, 2- (2 '-hydroxyls -3 ', 5 '-two tertiary phenyl) -5- chlorination benzotriazole 0.89%, nano titanium dioxide powder
2%.
I, is by anhydrous methanol 1500g, diglycol 3000g, dipropylene glycol 2g, diethyl phthalate
2g, ethyl acetate 100g are added sequentially in 50L reaction kettle, start stirring, 500~800r/min of revolving speed, and mixing time 10~
20min.Again by glyceryl triacetate 2600g, lilial 200g, peach aldehyde 200g, salicylic acid benzyl ester 300g, ethyl isovalerate 2g, silicon
Diatomaceous earth 900g, allyl heptanoate 2g, methyl phenyl carbinyl acetate 1g, tridecandioic acid ring ethylene ester 2g, jasmonal H 400g, 2-
(2 '-hydroxyls -3 ', 5 '-two tertiary phenyl) -5- chlorination benzotriazole 89g, nanometer titanium dioxide titanium valve 200g are by special process
Reason is added in reaction kettle later, starts stirring, 800~1200r/min of revolving speed, 30~60min of mixing time goes out kettle to get furan
The dedicated mask agent of furane resins sand.
The dedicated mask agent of obtained furan resin-sand is added to (the mask agent addition of stirring in the furane resins of finished product by II,
‰) amount accounts for weight resin 2,60~80r/min of revolving speed, 30~60min of mixing time is to get the furane resins containing mask agent.
It is appropriate that III, sprays the mask agent in the moulding of furan resin-sand and casting place.
The free formaldehyde detection level of furane resins binder containing the mask agent is 0.01%, contains the mask agent
Furane resins binder is 5.11ppm with methylene oxide detecting instrument measurement content of formaldehyde in modeling process；Formaldehyde is used in casting process
It is 3.23ppm that detector, which measures content of formaldehyde,；And scene is without obvious irritation formaldehyde taste, toluene or dimethylbenzene taste and furans tree
The taste of rouge instead light fruit flavor.
Embodiment 4
Anhydrous methanol 12%, glyceryl triacetate 32%, diglycol 34%, lilial 2%, peach aldehyde 2%, willow
Acid benzyl ester 3%, ethyl isovalerate 0.02%, diatomite 7%, dipropylene glycol 0.02%, allyl heptanoate 0.02%, acetic acid
Styracin 0.01%, diethyl phthalate 0.02%, tridecandioic acid ring ethylene ester 0.02%, ethyl acetate 1%, α-
Hexyl cortex cinnamomi 4%, 2- (2 '-hydroxyls -3 ', 5 '-two tertiary phenyl) -5- chlorination benzotriazole 0.89%, nano titanium dioxide powder
2%.
I, is by anhydrous methanol 1200g, diglycol 3400g, dipropylene glycol 2g, diethyl phthalate
2g, ethyl acetate 100g are added sequentially in 50L reaction kettle, start stirring, 500~800r/min of revolving speed, and mixing time 10~
20min.Again by glyceryl triacetate 3400g, lilial 200g, peach aldehyde 200g, salicylic acid benzyl ester 300g, ethyl isovalerate 2g, silicon
Diatomaceous earth 700g, allyl heptanoate 2g, methyl phenyl carbinyl acetate 1g, tridecandioic acid ring ethylene ester 2g, jasmonal H 400g, 2-
(2 '-hydroxyls -3 ', 5 '-two tertiary phenyl) -5- chlorination benzotriazole 89g, nanometer titanium dioxide titanium valve 200g are by special process
Reason is added in reaction kettle later, starts stirring, 800~1200r/min of revolving speed, 30~60min of mixing time goes out kettle to get furan
The dedicated mask agent of furane resins sand.
The dedicated mask agent of obtained furan resin-sand is added to (the mask agent addition of stirring in the furane resins of finished product by II,
‰) amount accounts for weight resin 2,60~80r/min of revolving speed, 30~60min of mixing time is to get the furane resins containing mask agent.
It is appropriate that III, sprays the mask agent in the moulding of furan resin-sand and casting place.
The free formaldehyde detection level of furane resins binder containing the mask agent is 0.04%, contains the mask agent
Furane resins binder is 6.23ppm with methylene oxide detecting instrument measurement content of formaldehyde in modeling process；Formaldehyde is used in casting process
It is 3.10ppm that detector, which measures content of formaldehyde,；And scene is without obvious irritation formaldehyde taste, toluene or dimethylbenzene taste and furans tree
The taste of rouge instead light fruit flavor.
Embodiment 5
Anhydrous methanol 10%, glyceryl triacetate 40%, diglycol 25%, lilial 2%, peach aldehyde 2%, willow
Acid benzyl ester 3%, ethyl isovalerate 0.02%, diatomite 11%, dipropylene glycol 0.02%, allyl heptanoate 0.02%, second
Sour styracin 0.01%, diethyl phthalate 0.02%, tridecandioic acid ring ethylene ester 0.02%, ethyl acetate 1%,
α-hexyl cortex cinnamomi 4%, 2- (2 '-hydroxyls -3 ', 5 '-two tertiary phenyl) -5- chlorination benzotriazole 0.89%, nanometer titanium dioxide titanium valve
End 1%.
I, is by anhydrous methanol 1000g, diglycol 2500g, dipropylene glycol 2g, diethyl phthalate
2g, ethyl acetate 100g are added sequentially in 50L reaction kettle, start stirring, 500~800r/min of revolving speed, and mixing time 10~
20min.Again by glyceryl triacetate 4000g, lilial 200g, peach aldehyde 200g, salicylic acid benzyl ester 300g, ethyl isovalerate 2g, silicon
Diatomaceous earth 1100g, allyl heptanoate 2g, methyl phenyl carbinyl acetate 1g, tridecandioic acid ring ethylene ester 2g, jasmonal H 400g,
2- (2 '-hydroxyls -3 ', 5 '-two tertiary phenyl) -5- chlorination benzotriazole 89g, nanometer titanium dioxide titanium valve 100g pass through special process
Be added in reaction kettle after processed, start stirring, 800~1200r/min of revolving speed, 30~60min of mixing time go out kettle to get
The dedicated mask agent of furan resin-sand.
The dedicated mask agent of obtained furan resin-sand is added to (the mask agent addition of stirring in the furane resins of finished product by II,
‰) amount accounts for weight resin 2,60~80r/min of revolving speed, 30~60min of mixing time is to get the furane resins containing mask agent.
It is appropriate that III, sprays the mask agent in the moulding of furan resin-sand and casting place.
The free formaldehyde detection level of furane resins binder containing the mask agent is 0.05%, contains the mask agent
Furane resins binder is 7.11ppm with methylene oxide detecting instrument measurement content of formaldehyde in modeling process；Formaldehyde is used in casting process
It is 4.11ppm that detector, which measures content of formaldehyde,；And scene is without obvious irritation formaldehyde taste, toluene or dimethylbenzene taste and furans tree
The taste of rouge instead light fruit flavor.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (6)
1. a kind of furan resin casting sand mask agent, which is characterized in that the chemistry of the furan resin casting sand mask agent
Ingredient in percentage by weight, specially anhydrous methanol 10%~20%, glyceryl triacetate 20%~40%, a contracting diethyl
Glycol 15%~45%, lilial 1%~3%, peach aldehyde 1%~3%, salicylic acid benzyl ester 1%~6%, ethyl isovalerate 0.01%
~0.03%, diatomite 7%~11%, dipropylene glycol 0.01%~0.03%, allyl heptanoate 0.01%~0.03%,
Methyl phenyl carbinyl acetate 0%~0.2%, diethyl phthalate 0.01%~0.03%, tridecandioic acid ring ethylene ester
0.01%~0.03%, ethyl acetate 0.99%~1.01%, α-hexyl cortex cinnamomi 1%~9%, 2- (2 '-hydroxyls -3 ', 5 '-two
Tertiary phenyl) -5- chlorination benzotriazole 0.6%~1%, nano titanium dioxide powder 1%~3%.
2. a kind of method for being used to prepare furan resin casting sand mask agent as described in claim 1, which is characterized in that
Include the following steps:
S1: anhydrous methanol, diglycol, dipropylene glycol, diethyl phthalate and ethyl acetate are successively added
Enter into reaction kettle, stirs evenly；
S2: again by glyceryl triacetate, lilial, peach aldehyde, salicylic acid benzyl ester, ethyl isovalerate, diatomite, allyl heptanoate, second
Sour styracin, tridecandioic acid ring ethylene ester, jasmonal H, 2- (2 '-hydroxyls -3 ', 5 '-two tertiary phenyl) -5- chlorination
Benzotriazole, nanometer titanium dioxide titanium valve are added in reaction kettle after processing, and 30~60min of stirring goes out kettle.
3. the preparation method of furan resin casting sand mask agent according to claim 2, which is characterized in that in the S1
The revolving speed of stirred tank is 500~800r/min.
4. the preparation method of furan resin casting sand mask agent according to claim 2, which is characterized in that in the S2
The revolving speed of stirred tank is 800~1200r/min.
5. a kind of furane resins containing mask agent, which is characterized in that the furane resins containing mask agent are by will be as
Furan resin casting sand described in any one of Claims 1 to 4 is added to stir in the furane resins of finished product with mask agent and is made.
6. the furane resins according to claim 5 containing mask agent, which is characterized in that the revolving speed when stirring is 60
~120r/min, mixing time are 30~60min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910700316.4A CN110479952B (en) | 2019-07-31 | 2019-07-31 | Odor masking agent for furan resin sand for casting and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| US5545825A (en) * | 1993-05-19 | 1996-08-13 | Schuller International, Inc. | Low VOC furan resins and method of reducing VOCs in furan resins |
| CN1379062A (en) * | 2002-04-10 | 2002-11-13 | 山东省桓台东源化工厂 | Fragrant furan resin and its preparing process |
| CN102802833A (en) * | 2010-03-18 | 2012-11-28 | 花王株式会社 | Binder composition for use in mold manufacturing |
| CN103567365A (en) * | 2013-10-11 | 2014-02-12 | 铜陵市经纬流体科技有限公司 | Furan resin self-hardening sand for casting and preparation method thereof |
| US20150126357A1 (en) * | 2013-10-31 | 2015-05-07 | Xiwang Qi | Nano-Structured Composite Material and Process of Making for Enclosed Space Air Detoxing and Deodoring |
| CN108727549A (en) * | 2018-05-29 | 2018-11-02 | 宁夏共享化工有限公司 | A kind of modified urea-formaldehyde furane resins |
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|---|---|---|---|---|
| US5545825A (en) * | 1993-05-19 | 1996-08-13 | Schuller International, Inc. | Low VOC furan resins and method of reducing VOCs in furan resins |
| CN1379062A (en) * | 2002-04-10 | 2002-11-13 | 山东省桓台东源化工厂 | Fragrant furan resin and its preparing process |
| CN102802833A (en) * | 2010-03-18 | 2012-11-28 | 花王株式会社 | Binder composition for use in mold manufacturing |
| CN103567365A (en) * | 2013-10-11 | 2014-02-12 | 铜陵市经纬流体科技有限公司 | Furan resin self-hardening sand for casting and preparation method thereof |
| US20150126357A1 (en) * | 2013-10-31 | 2015-05-07 | Xiwang Qi | Nano-Structured Composite Material and Process of Making for Enclosed Space Air Detoxing and Deodoring |
| CN108727549A (en) * | 2018-05-29 | 2018-11-02 | 宁夏共享化工有限公司 | A kind of modified urea-formaldehyde furane resins |
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