CN1063208C - Urea-fromaldehyde glue for composite floor - Google Patents
Urea-fromaldehyde glue for composite floor Download PDFInfo
- Publication number
- CN1063208C CN1063208C CN97103597A CN97103597A CN1063208C CN 1063208 C CN1063208 C CN 1063208C CN 97103597 A CN97103597 A CN 97103597A CN 97103597 A CN97103597 A CN 97103597A CN 1063208 C CN1063208 C CN 1063208C
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- Prior art keywords
- urea
- formaldehyde
- glue
- amount
- fromaldehyde
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- Expired - Fee Related
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- Phenolic Resins Or Amino Resins (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The present invention discloses urea formaldehyde resin glue for composite floors, which is mainly used for binding high-grade composite floors, medium density fiber boards of veneer boards, shaving boards, etc. The urea formaldehyde resin glue for composite floors is prepared by comparing and polymerizing urea, formaldehyde, hexamethylene tetramine, boracic acid, melamine and glyoxal according to a prescription. The present invention has the characteristics of simple production process, low cost, etc.
Description
The present invention relates to a kind of gelatin substance, i.e. urea-fromaldehyde glue for composite floor, it is bonding to be widely used in compound high-grade floor, glued board, medium density fibre board (MDF), shaving board etc.
In background technology, the used jelly of bonding high-grade composite floor board adopts import glue more, product as Sweden Ka Sike, Nobel company--powdery urea resin glue, its price is more expensive, more than 20000 yuan per ton, for the burst size that reduces aldehyde adopts granular structure, on complete processing, need to increase drying process and equipment.In addition, need show the water pairing during use, join to such an extent that adhesive capacity is inconvenient to hold, influence bonding effect.The domestic present same quality product that satisfies service requirements that still do not have.
It is simple that the object of the invention provides a kind of technology, the urea-fromaldehyde glue for composite floor that cost is low.
Urea-fromaldehyde glue for composite floor comprises urea formaldehyde and serves as vulkacit H, boric acid, the trimerization chloramines of properties-correcting agent that wherein also having the oxalic dialdehyde as aldehyde removing agent is requisite composition also.Other properties-correcting agent can use the material with performance to substitute.The concrete proportional range of each composition is:
The mol ratio of urea and formaldehyde: 1: 1.1-1.3;
Vulkacit H: the 0.3-0.8% that accounts for the formaldehyde amount;
Boric acid: the 0.5-1.0% that accounts for the formaldehyde amount;
Trimeric cyanamide: the 0.5-7.0% that accounts for the formaldehyde amount;
Oxalic dialdehyde: the 0.2-1.5% that accounts for the Resin adhesive total amount;
Formic acid, sodium hydroxide: an amount of (being used to transfer pH value), above-mentioned per-cent is weight percentage.
Below in conjunction with embodiment the present invention is described in further detail:
Get urea 1000kg, formaldehyde 1523kg (1: 1.15 in molar ratio), vulkacit H 7.6kg (0.5%), boric acid 10.7kg (0.7%), trimeric cyanamide 1.5kg (1.0%), oxalic dialdehyde 12.7kg (0.5%), formic acid, sodium hydroxide are an amount of, make finished product as follows:
Required formaldehyde and vulkacit H are dropped into reactor, transfer pH value to 8.0-8.5, a urea is dropped in the back, at 80-85 ℃ of following isothermal reaction 30min, add boric acid then, once transfer pH value to 5.2 to 5.4, and be warming up to 92 ℃, react 30-40min down at 92-94 ℃, transfer pH value to drop into secondary urea to 5.1-5.2, react down about 30min at 92-94 ℃, transfer pH value, and be cooled to three urea of 80 ℃ of addings and trimeric cyanamide to 8.0-8.3, carry out vacuum hydro-extraction behind the 10min, when refractive index reaches 1.456-1.458, finish, and be cooled to 40 ℃ of adding oxalic dialdehydes, get gluey finished product for dewatering.
Using method: carry out impregnation before the use, the impregnation prescription:
Above-mentioned urea-formaldehyde resin adhesive: 100
Flour: 12-14
The ammonia chloride solidifying agent: 6 (weight meters), at first Resin adhesive and flour in being housed, are mixed well by the container of high speed agitator, add solidifying agent then while stirring, fully stir evenly.
Advantage of the present invention and good effect are: 1. product index meets national standard and international standard, reach or Be better than import like product quality. The key technical indexes is: outward appearance is milky free from admixture uniform liquid, solid Content is at 55-60%, and free formaldehyde content is less than 0.15%, and viscosity (20 ℃) is 100 To 170mpa.S. after testing, be pressed into composite floor board and analyse the aldehyde amount less than 0.03ppm (Sweden SS2702 36 standard codes are less than 0.1PPm), its adhesion soaking at room temperature was not come unglued in 15 hours. 2. the present invention urinates Element and formaldehyde below 0.15%, are prescription, technologic at the lower aldehyde that dissociates that produces of higher mol ratio A breakthrough. 3. viscosity is suitable, convenient operation. 4. adopt gluey supply status, save drying process and equipment, Product cost is low, and replace imported is saved foreign exchange (the ton valency is 4800 yuan), remarkable in economical benefits.
Claims (4)
1. urea-fromaldehyde glue for composite floor comprises urea, formaldehyde and serves as the vulkacit H of properties-correcting agent that boric acid, trimeric cyanamide is characterized in that also containing oxalic dialdehyde.
2. according to the described urea-fromaldehyde glue for composite floor of claim 1, it is characterized in that the each component proportional range is:
The mol ratio of urea and formaldehyde: 1: 1.1-1.3;
Vulkacit H: the 0.3-0.8% that accounts for the formaldehyde amount;
Boric acid: the 0.5-1.0% that accounts for the formaldehyde amount;
Trimerization chloramines: the 0.5-7.0% that accounts for the formaldehyde amount;
Oxalic dialdehyde: the 0.2-1.5% that accounts for the Resin adhesive total amount.
3. according to claim 1 or 2 described urea-fromaldehyde glue for composite floor, also contain in it is characterized in that filling a prescription to be useful on and transfer the formic acid and the sodium hydroxide of pH value an amount of.
4. according to the described urea-fromaldehyde glue for composite floor of claim 3, it is characterized in that screening formulation is:
The mol ratio of urea and formaldehyde: 1: 1.15;
Vulkacit H: account for 0.5% of formaldehyde amount;
Boric acid: account for 0.7% of formaldehyde amount;
Trimeric cyanamide: account for 1.0% of formaldehyde amount;
Oxalic dialdehyde: account for 0.5% of Resin adhesive total amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97103597A CN1063208C (en) | 1997-05-10 | 1997-05-10 | Urea-fromaldehyde glue for composite floor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97103597A CN1063208C (en) | 1997-05-10 | 1997-05-10 | Urea-fromaldehyde glue for composite floor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1172140A CN1172140A (en) | 1998-02-04 |
| CN1063208C true CN1063208C (en) | 2001-03-14 |
Family
ID=5166759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97103597A Expired - Fee Related CN1063208C (en) | 1997-05-10 | 1997-05-10 | Urea-fromaldehyde glue for composite floor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1063208C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104789174A (en) * | 2015-04-29 | 2015-07-22 | 王学谦 | Environment-friendly urea formaldehyde resin adhesive and production method thereof |
| CN105131224A (en) * | 2015-08-24 | 2015-12-09 | 宋建平 | Glyoxal modified urea-melamine-formaldehyde resin adhesive and preparation method thereof |
| CN105440576B (en) * | 2015-12-18 | 2018-02-16 | 神盾防火科技有限公司 | A kind of light floor of fire resisting imitates the preparation method of tile material |
| CN106800911A (en) * | 2016-12-22 | 2017-06-06 | 北京林业大学 | A kind of composite modified gluing agent of MG resin plant albumen and preparation method and application |
| CN109988530A (en) * | 2017-12-31 | 2019-07-09 | 永隆高新科技(青岛)有限公司 | A kind of urea formaldehyde resin adhesive and preparation method thereof of ultralow free formaldehyde content |
| CN109929261A (en) * | 2019-03-15 | 2019-06-25 | 湖南辰砾新材料有限公司 | A kind of fire proofing fibre board based on boron modification Lauxite |
| CN114752326A (en) * | 2022-03-29 | 2022-07-15 | 西南林业大学 | Multi-component glyoxal resin adhesive and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58149975A (en) * | 1983-01-24 | 1983-09-06 | Kuraray Co Ltd | Adhesive |
| JPS6055070A (en) * | 1983-09-06 | 1985-03-29 | Mitsui Toatsu Chem Inc | Adhesive composition |
-
1997
- 1997-05-10 CN CN97103597A patent/CN1063208C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58149975A (en) * | 1983-01-24 | 1983-09-06 | Kuraray Co Ltd | Adhesive |
| JPS6055070A (en) * | 1983-09-06 | 1985-03-29 | Mitsui Toatsu Chem Inc | Adhesive composition |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1172140A (en) | 1998-02-04 |
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| 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 |