CN109021189A - A kind of delicate fragrance type self-hardening furan resin - Google Patents
A kind of delicate fragrance type self-hardening furan resin Download PDFInfo
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- CN109021189A CN109021189A CN201811013613.3A CN201811013613A CN109021189A CN 109021189 A CN109021189 A CN 109021189A CN 201811013613 A CN201811013613 A CN 201811013613A CN 109021189 A CN109021189 A CN 109021189A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G16/00—Condensation polymers of aldehydes or ketones with monomers not provided for in the groups C08G4/00 - C08G14/00
- C08G16/02—Condensation polymers of aldehydes or ketones with monomers not provided for in the groups C08G4/00 - C08G14/00 of aldehydes
- C08G16/025—Condensation polymers of aldehydes or ketones with monomers not provided for in the groups C08G4/00 - C08G14/00 of aldehydes with heterocyclic organic compounds
- C08G16/0256—Condensation polymers of aldehydes or ketones with monomers not provided for in the groups C08G4/00 - C08G14/00 of aldehydes with heterocyclic organic compounds containing oxygen in the ring
- C08G16/0262—Furfuryl alcohol
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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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- Engineering & Computer Science (AREA)
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- Polymers & Plastics (AREA)
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- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
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Abstract
The invention discloses a kind of delicate fragrance type self-hardening furan resins, the delicate fragrance type self-hardening furan resin includes following raw material: furfuryl alcohol, formaldehyde, urea, catalyst, R reagent and silane coupling agent for reducing free formaldehyde, and wherein the molar ratio of furfuryl alcohol, formaldehyde, urea, catalyst, R reagent and silane coupling agent is 8:2:1.3-2.6:0.01-0.02:0.01-0.02:0.004-0.008.The product processed in the present invention is on the basis of original self-hardening furan resin; adapt to the upgrading products of environmental requirement research and development; self-hardening furan resin effectively eliminates the decomposition and pollution of the pernicious gases such as aldehydes, phenols and free formaldehyde in moulding, casting process; protect environment and the health of worker; and self-hardening furan resin capability and performance is stablized; it can guarantee that free formaldehyde content is less than 0.1% in delicate fragrance type self-hardening furan resin using R reagent; better than professional standard; the yield rate of casting can be improved in this product, and reduces the pollution to environment.
Description
Technical field
The present invention relates to the processing technique field of furane resins, in particular to a kind of delicate fragrance type self-hardening furan resin.
Background technique
Self-hardening furan resin is widely used in machinery, petroleum, automobile, metallurgical industry department.Self-hardening furan resin is being made
The pernicious gases such as some aldehydes, phenols and free formaldehyde in type, casting process, will result in employee working environment pollution or
The pollution of atmospheric environment seriously affects people's lives environment, and people are in pollution environment life for a long time or work, just
It will affect the health of people, however traditional self-hardening furan resin is in process, free formaldehyde content is greater than 0.3 milli
Gram every cube, exceed professional standard, wherein free formaldehyde can seriously endanger the body of people, therefore cannot be guaranteed the body of employee
The safety of body health or manufacturing environment, in consideration of it, the present invention provides a kind of delicate fragrance type self-hardening furan resin.
Summary of the invention
In order to pollute environment when solving the problem of the processing of above-mentioned self-hardening furan resin and influence people's health, this hair
It is bright that a kind of delicate fragrance type self-hardening furan resin is provided.
A kind of delicate fragrance type self-hardening furan resin, the delicate fragrance type self-hardening furan resin include following raw material: furfuryl alcohol, formaldehyde, urine
Element, catalyst, R reagent and silane coupling agent for reducing free formaldehyde, wherein furfuryl alcohol, formaldehyde, urea, catalyst, R reagent
Molar ratio with silane coupling agent is 8:2:1.3-2.6:0.01-0.02:0.01-0.02:0.004-0.008.
Preferably, the catalyst includes basic catalyst and acidic catalyst, wherein basic catalyst be sodium hydroxide,
Potassium hydroxide, sodium carbonate, any one in sodium bicarbonate, and acidic catalyst is acetic acid, hydrochloric acid, sulfuric acid, appointing in formic acid
It anticipates one kind.
Preferably, the mass ratio of the basic catalyst and acidic catalyst is 2:1.
Preferably, the R reagent is melamine, carbamide, any one or several mixtures in ethylene urea.
A kind of processing technology of delicate fragrance type self-hardening furan resin, comprising the following steps:
S1, raw material is added into reaction kettle: formaldehyde is first added into reaction kettle, start the agitating device in reaction kettle, add
The furfuryl alcohol of urea and total amount a quarter, and heated using the steam on reaction kettle；
S2: dilute basic catalyst and acidic catalyst respectively: basic catalyst and water are diluted according to the mass ratio of 1:8,
Obtain that alkaline solution is stand-by, wherein acidic catalyst and water are diluted according to the mass ratio of 1:3, and it is stand-by to obtain acid solution；
S3, adjust pH value: the alkaline solution after dilution is added in the reaction kettle into S1 adjusts the pH value of mixed liquor, wherein mixing
The pH value range of liquid is 7-8；
S4, heating: when the temperature in reaction kettle reaches 97 DEG C -99 DEG C, silane coupling agent is added, then see having back from sight glass
When flow liquid, start timing；
S5, cooling: in S3 after timing 15min, reaction kettle is held one's breath cooling；
S6, addition furfuryl alcohol: it when the temperature in reaction kettle drops to 60 DEG C, is pumped by vacuum intake remaining 3/4ths chaff
Alcohol is pumped into reaction kettle；
S7, adjust pH value: the acid solution after dilution is added into reaction kettle adjusts the pH value of mixed reactant, wherein mixing is anti-
Answering the pH value range in object is 6.3-6.7；
S8, R reagent is added: R reagent is added into reaction kettle, stir 20-35 minutes, close the agitating device in reaction kettle；
S9, vacuum dehydration: the steam pressure of vacuum dehydration is less than 0.1MPa, and wherein dewatering time is subject to dehydrating amount, and is dehydrated
The theoretical value of amount are as follows: the weight of water in catalyst is added in formaldehyde weight × (100-37) %+；
S10, sample detection: the hybrid reaction analyte detection pH value for taking 0.05-1 to rise, and the pH value of mixed reactant is not less than 6.5；
S11, blowing: after hybrid reaction analyte detection is qualified, opening the air intake valve of reaction kettle, destroy the vacuum state of reaction kettle,
And reaction kettle closes vapour, opens reaction kettle cold valves, until the temperature of reaction kettle drop to 50 DEG C hereinafter, then hybrid reaction after
Product be discharged out of reaction kettle.
Preferably, the water in the S2 is pure water, any one in distilled water.
Preferably, the cooling in the S5 is cooled down by cold water.
The advantages and beneficial effects of the present invention are: the product processed in the present invention is the base in original self-hardening furan resin
On plinth, adapt to environmental requirement research and development upgrading products, self-hardening furan resin effectively eliminated in moulding, casting process aldehydes,
The decomposition and pollution of the pernicious gases such as phenols and free formaldehyde, protect environment and the health of worker, realize green casting
It makes and clean manufacturing, and self-hardening furan resin capability and performance is stablized, and can be guaranteed in delicate fragrance type self-hardening furan resin using R reagent
Free formaldehyde content is better than professional standard, the yield rate of casting can be improved in this product, and reduces the dirt to environment less than 0.1%
Dye.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical solution in the embodiment of the present invention is clearly and completely retouched
It states, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Embodiment one
A kind of delicate fragrance type self-hardening furan resin, the delicate fragrance type self-hardening furan resin include following raw material: furfuryl alcohol, urea, is urged at formaldehyde
Agent, R reagent and silane coupling agent for reducing free formaldehyde, wherein furfuryl alcohol, formaldehyde, urea, catalyst, R reagent and silicon
The molar ratio of alkane coupling agent is 8:2:1.3:0.01:0.01:0.004, and wherein R reagent is melamine, in carbamide, ethylene urea
Any one or several mixtures.
Catalyst includes basic catalyst and acidic catalyst, and wherein basic catalyst is sodium hydroxide, potassium hydroxide, carbon
Any one in sour sodium, sodium bicarbonate, and acidic catalyst is acetic acid, hydrochloric acid, sulfuric acid, any one in formic acid, alkalinity
The mass ratio of catalyst and acidic catalyst is 2:1.
A kind of processing technology of delicate fragrance type self-hardening furan resin, comprising the following steps:
S1, raw material is added into reaction kettle: formaldehyde is first added into reaction kettle, start the agitating device in reaction kettle, add
The furfuryl alcohol of urea and total amount a quarter, and heated using the steam on reaction kettle；
S2: dilute basic catalyst and acidic catalyst respectively: basic catalyst and water are diluted according to the mass ratio of 1:8,
Obtain that alkaline solution is stand-by, wherein acidic catalyst and water are diluted according to the mass ratio of 1:3, and it is stand-by to obtain acid solution,
And water is pure water, any one in distilled water；
S3, adjust pH value: the alkaline solution after dilution is added in the reaction kettle into S1 adjusts the pH value of mixed liquor, wherein mixing
The pH value range of liquid is 7；
S4, heating: when the temperature in reaction kettle reaches 97 DEG C, silane coupling agent is added, then see there is phegma from sight glass
When, start timing；
S5, cooling: in S3 after timing 15min, reaction kettle is held one's breath cooling, and cooling down is cooled down by cold water；
S6, addition furfuryl alcohol: it when the temperature in reaction kettle drops to 60 DEG C, is pumped by vacuum intake remaining 3/4ths chaff
Alcohol is pumped into reaction kettle；
S7, adjust pH value: the acid solution after dilution is added into reaction kettle adjusts the pH value of mixed reactant, wherein mixing is anti-
Answering the pH value range in object is 6.3；
S8, R reagent is added: R reagent is added into reaction kettle, stir 20 minutes, close the agitating device in reaction kettle；
S9, vacuum dehydration: the steam pressure of vacuum dehydration is less than 0.1MPa, and wherein dewatering time is subject to dehydrating amount, and is dehydrated
The theoretical value of amount are as follows: the weight of water in catalyst is added in formaldehyde weight × (100-37) %+；
S10, sample detection: 0.05 liter of hybrid reaction analyte detection pH value is taken, and the pH value of mixed reactant is not less than 6.5；
S11, blowing: after hybrid reaction analyte detection is qualified, opening the air intake valve of reaction kettle, destroy the vacuum state of reaction kettle,
And reaction kettle closes vapour, opens reaction kettle cold valves, until the temperature of reaction kettle drop to 50 DEG C hereinafter, then hybrid reaction after
Product be discharged out of reaction kettle.
Embodiment two
A kind of delicate fragrance type self-hardening furan resin, the delicate fragrance type self-hardening furan resin include following raw material: furfuryl alcohol, urea, is urged at formaldehyde
Agent, R reagent and silane coupling agent for reducing free formaldehyde, wherein furfuryl alcohol, formaldehyde, urea, catalyst, R reagent and silicon
The molar ratio of alkane coupling agent is 8:2:1.6:0.015:0.015:0.006, and wherein R reagent is melamine, carbamide, ethylene urea
In any one or several mixtures.
Catalyst includes basic catalyst and acidic catalyst, and wherein basic catalyst is sodium hydroxide, potassium hydroxide, carbon
Any one in sour sodium, sodium bicarbonate, and acidic catalyst is acetic acid, hydrochloric acid, sulfuric acid, any one in formic acid, alkalinity
The mass ratio of catalyst and acidic catalyst is 2:1.
A kind of processing technology of delicate fragrance type self-hardening furan resin, comprising the following steps:
S1, raw material is added into reaction kettle: formaldehyde is first added into reaction kettle, start the agitating device in reaction kettle, add
The furfuryl alcohol of urea and total amount a quarter, and heated using the steam on reaction kettle；
S2: dilute basic catalyst and acidic catalyst respectively: basic catalyst and water are diluted according to the mass ratio of 1:8,
Obtain that alkaline solution is stand-by, wherein acidic catalyst and water are diluted according to the mass ratio of 1:3, and it is stand-by to obtain acid solution,
And water is pure water, any one in distilled water；
S3, adjust pH value: the alkaline solution after dilution is added in the reaction kettle into S1 adjusts the pH value of mixed liquor, wherein mixing
The pH value range of liquid is 7.5；
S4, heating: when the temperature in reaction kettle reaches 98 DEG C, silane coupling agent is added, then see there is phegma from sight glass
When, start timing；
S5, cooling: in S3 after timing 15min, reaction kettle is held one's breath cooling, and cooling down is cooled down by cold water；
S6, addition furfuryl alcohol: it when the temperature in reaction kettle drops to 60 DEG C, is pumped by vacuum intake remaining 3/4ths chaff
Alcohol is pumped into reaction kettle；
S7, adjust pH value: the acid solution after dilution is added into reaction kettle adjusts the pH value of mixed reactant, wherein mixing is anti-
Answering the pH value range in object is 6.5；
S8, R reagent is added: R reagent is added into reaction kettle, stir 28 minutes, close the agitating device in reaction kettle；
S9, vacuum dehydration: the steam pressure of vacuum dehydration is less than 0.1MPa, and wherein dewatering time is subject to dehydrating amount, and is dehydrated
The theoretical value of amount are as follows: the weight of water in catalyst is added in formaldehyde weight × (100-37) %+；
S10, sample detection: 1 liter of hybrid reaction analyte detection pH value is taken, and the pH value of mixed reactant is not less than 6.5；
S11, blowing: after hybrid reaction analyte detection is qualified, opening the air intake valve of reaction kettle, destroy the vacuum state of reaction kettle,
And reaction kettle closes vapour, opens reaction kettle cold valves, until the temperature of reaction kettle drop to 50 DEG C hereinafter, then hybrid reaction after
Product be discharged out of reaction kettle.
Embodiment three
A kind of delicate fragrance type self-hardening furan resin, the delicate fragrance type self-hardening furan resin include following raw material: furfuryl alcohol, urea, is urged at formaldehyde
Agent, R reagent and silane coupling agent for reducing free formaldehyde, wherein furfuryl alcohol, formaldehyde, urea, catalyst, R reagent and silicon
The molar ratio of alkane coupling agent is 8:2:2.6:0.02:0.02:0.008, and wherein R reagent is melamine, in carbamide, ethylene urea
Any one or several mixtures.
Catalyst includes basic catalyst and acidic catalyst, and wherein basic catalyst is sodium hydroxide, potassium hydroxide, carbon
Any one in sour sodium, sodium bicarbonate, and acidic catalyst is acetic acid, hydrochloric acid, sulfuric acid, any one in formic acid, alkalinity
The mass ratio of catalyst and acidic catalyst is 2:1.
A kind of processing technology of delicate fragrance type self-hardening furan resin, comprising the following steps:
S1, raw material is added into reaction kettle: formaldehyde is first added into reaction kettle, start the agitating device in reaction kettle, add
The furfuryl alcohol of urea and total amount a quarter, and heated using the steam on reaction kettle；
S2: dilute basic catalyst and acidic catalyst respectively: basic catalyst and water are diluted according to the mass ratio of 1:8,
Obtain that alkaline solution is stand-by, wherein acidic catalyst and water are diluted according to the mass ratio of 1:3, and it is stand-by to obtain acid solution,
And water is pure water, any one in distilled water；
S3, adjust pH value: the alkaline solution after dilution is added in the reaction kettle into S1 adjusts the pH value of mixed liquor, wherein mixing
The pH value range of liquid is 8；
S4, heating: when the temperature in reaction kettle reaches 99 DEG C, silane coupling agent is added, then see there is phegma from sight glass
When, start timing；
S5, cooling: in S3 after timing 15min, reaction kettle is held one's breath cooling, and cooling down is cooled down by cold water；
S6, addition furfuryl alcohol: it when the temperature in reaction kettle drops to 60 DEG C, is pumped by vacuum intake remaining 3/4ths chaff
Alcohol is pumped into reaction kettle；
S7, adjust pH value: the acid solution after dilution is added into reaction kettle adjusts the pH value of mixed reactant, wherein mixing is anti-
Answering the pH value range in object is 6.7；
S8, R reagent is added: R reagent is added into reaction kettle, stir 35 minutes, close the agitating device in reaction kettle；
S9, vacuum dehydration: the steam pressure of vacuum dehydration is less than 0.1MPa, and wherein dewatering time is subject to dehydrating amount, and is dehydrated
The theoretical value of amount are as follows: the weight of water in catalyst is added in formaldehyde weight × (100-37) %+；
S10, sample detection: 1 liter of hybrid reaction analyte detection pH value is taken, and the pH value of mixed reactant is not less than 6.5；
S11, blowing: after hybrid reaction analyte detection is qualified, opening the air intake valve of reaction kettle, destroy the vacuum state of reaction kettle,
And reaction kettle closes vapour, opens reaction kettle cold valves, until the temperature of reaction kettle drop to 50 DEG C hereinafter, then hybrid reaction after
Product be discharged out of reaction kettle.
| Furfuryl alcohol, formaldehyde, urea, catalyst, curing agent and The molar ratio of silane coupling agent | It is mixed that sodium hydroxide solution adjusting is added Close the pH value of liquid | In reaction kettle after heating most High-temperature | Dilute acetic acid solution is added and adjusts mixing The pH value of reactant | Free formaldehyde milligram/ Cubic meter | It is whether qualified | |
| Embodiment one | 8:2:1.3:0.01:0.01:0.004 | 7 | 97℃ | 6.3 | 0.09 | It is qualified |
| Embodiment two | 8:2:1.6:0.015:0.015:0.006 | 7.5 | 98℃ | 6.5 | 0.03 | It is qualified |
| Embodiment three | 8:2:2.6:0.02:0.02:0.008 | 8 | 99℃ | 6.7 | 0.08 | It is qualified |
Above three groups of data comparisons, the content of free formaldehyde is lower in embodiment two, needs to obtain and endangers the minimum furans of environment
When resin, then need to carry out processing furane resins (data and step are strictly referring to embodiment two) in strict accordance with embodiment two, so
After can produce satisfactory furane resins, while the vacuum dehydration in the present invention can guarantee that furane resins are processed
The content that free formaldehyde is reduced in journey, R reagent, which is added, can reduce free formaldehyde, and then guarantee the using effect of this product.
Furfuryl alcohol for furfuryl alcohol resin production should conform to 92 standard of GB/TI4022-；First for furfuryl alcohol resin production
Aldehyde, content answer >=37%, and quality meets the requirement of GB9009-88；Urea for furfuryl alcohol resin production answers pure, nothing
Impurity, nitrogen content answer >=46%, and quality meets the requirement of GB2440-81.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, made any modification, equivalent replacement etc. be should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of delicate fragrance type self-hardening furan resin, which is characterized in that the delicate fragrance type self-hardening furan resin includes following raw material: chaff
Alcohol, formaldehyde, urea, catalyst, R reagent and silane coupling agent for reducing free formaldehyde, wherein furfuryl alcohol, formaldehyde, urea, urge
The molar ratio of agent, R reagent and silane coupling agent is 8:2:1.3-2.6:0.01-0.02:0.01-0.02:0.004-0.008.
2. a kind of delicate fragrance type self-hardening furan resin according to claim 1, which is characterized in that the catalyst includes alkali
Property catalyst and acidic catalyst, wherein basic catalyst is sodium hydroxide, potassium hydroxide, sodium carbonate, appointing in sodium bicarbonate
It anticipates one kind, and acidic catalyst is acetic acid, hydrochloric acid, sulfuric acid, any one in formic acid.
3. a kind of delicate fragrance type self-hardening furan resin according to claim 2, which is characterized in that the basic catalyst and
The mass ratio of acidic catalyst is 2:1.
4. a kind of delicate fragrance type self-hardening furan resin according to claim 1, which is characterized in that the R reagent is trimerization
Cyanamide, carbamide, any one or several mixtures in ethylene urea.
5. a kind of processing technology of delicate fragrance type self-hardening furan resin according to any one of claims 1-4, feature exist
In, comprising the following steps:
S1, raw material is added into reaction kettle: formaldehyde is first added into reaction kettle, start the agitating device in reaction kettle, add
The furfuryl alcohol of urea and total amount a quarter, and heated using the steam on reaction kettle；
S2: dilute basic catalyst and acidic catalyst respectively: basic catalyst and water are diluted according to the mass ratio of 1:8,
Obtain that alkaline solution is stand-by, wherein acidic catalyst and water are diluted according to the mass ratio of 1:3, and it is stand-by to obtain acid solution；
S3, adjust pH value: the alkaline solution after dilution is added in the reaction kettle into S1 adjusts the pH value of mixed liquor, wherein mixing
The pH value range of liquid is 7-8；
S4, heating: when the temperature in reaction kettle reaches 97 DEG C -99 DEG C, silane coupling agent is added, then see having back from sight glass
When flow liquid, start timing；
S5, cooling: in S3 after timing 15min, reaction kettle is held one's breath cooling；
S6, addition furfuryl alcohol: it when the temperature in reaction kettle drops to 60 DEG C, is pumped by vacuum intake remaining 3/4ths chaff
Alcohol is pumped into reaction kettle；
S7, adjust pH value: the acid solution after dilution is added into reaction kettle adjusts the pH value of mixed reactant, wherein mixing is anti-
Answering the pH value range in object is 6.3-6.7；
S8, R reagent is added: R reagent is added into reaction kettle, stir 20-35 minutes, close the agitating device in reaction kettle；
S9, vacuum dehydration: the steam pressure of vacuum dehydration is less than 0.1MPa, and wherein dewatering time is subject to dehydrating amount, and is dehydrated
The theoretical value of amount are as follows: the weight of water in catalyst is added in formaldehyde weight × (100-37) %+；
S10, sample detection: the hybrid reaction analyte detection pH value for taking 0.05-1 to rise, and the pH value of mixed reactant is not less than 6.5；
S11, blowing: after hybrid reaction analyte detection is qualified, opening the air intake valve of reaction kettle, destroy the vacuum state of reaction kettle,
And reaction kettle closes vapour, opens reaction kettle cold valves, until the temperature of reaction kettle drop to 50 DEG C hereinafter, then hybrid reaction after
Product be discharged out of reaction kettle.
6. a kind of processing technology of delicate fragrance type self-hardening furan resin according to claim 5, which is characterized in that the S2
In water be pure water, any one in distilled water.
7. a kind of processing technology of delicate fragrance type self-hardening furan resin according to claim 5, which is characterized in that the S5
In cooling be to be cooled down by cold water.
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| CN112142938A (en) * | 2019-06-28 | 2020-12-29 | 江苏华岗材料科技发展有限公司 | Preparation method of energy-saving and environment-friendly furan resin casting adhesive |
| CN115850689A (en) * | 2022-12-02 | 2023-03-28 | 镇江牛盾新材料科技有限公司 | Aldehyde-free self-hardening furan resin and preparation method and application thereof |
| CN116274851A (en) * | 2022-12-15 | 2023-06-23 | 江苏华岗材料科技发展有限公司 | Adhesive for casting and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112142938A (en) * | 2019-06-28 | 2020-12-29 | 江苏华岗材料科技发展有限公司 | Preparation method of energy-saving and environment-friendly furan resin casting adhesive |
| CN115850689A (en) * | 2022-12-02 | 2023-03-28 | 镇江牛盾新材料科技有限公司 | Aldehyde-free self-hardening furan resin and preparation method and application thereof |
| CN115850689B (en) * | 2022-12-02 | 2024-03-15 | 镇江牛盾新材料科技有限公司 | Aldehyde-free self-hardening furan resin and preparation method and application thereof |
| CN116274851A (en) * | 2022-12-15 | 2023-06-23 | 江苏华岗材料科技发展有限公司 | Adhesive for casting and preparation method thereof |
| CN116274851B (en) * | 2022-12-15 | 2023-10-20 | 江苏华岗材料科技发展有限公司 | Adhesive for casting and preparation method thereof |
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Application publication date: 20181218 |