CN109957081A - A kind of water-fast Lauxite and preparation method - Google Patents
A kind of water-fast Lauxite and preparation method Download PDFInfo
- Publication number
- CN109957081A CN109957081A CN201711415072.2A CN201711415072A CN109957081A CN 109957081 A CN109957081 A CN 109957081A CN 201711415072 A CN201711415072 A CN 201711415072A CN 109957081 A CN109957081 A CN 109957081A
- Authority
- CN
- China
- Prior art keywords
- lauxite
- parts
- water
- fast
- sodium hydroxide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- C08G12/00—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08G12/02—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes
- C08G12/40—Chemically modified polycondensates
- C08G12/42—Chemically modified polycondensates by etherifying
- C08G12/421—Chemically modified polycondensates by etherifying of polycondensates based on acyclic or carbocyclic compounds
- C08G12/422—Chemically modified polycondensates by etherifying of polycondensates based on acyclic or carbocyclic compounds based on urea or thiourea
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Phenolic Resins Or Amino Resins (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a kind of water-fast Lauxite and preparation methods, the water-fast Lauxite is made of Lauxite, sodium hydroxide, phosphoric acid, modifying agent, toughener and deionized water, the modifying agent is polyvinyl alcohol or melamine, and the toughener is toluene di-isocyanate(TDI).The product by addition polyvinyl alcohol or it is cyanurotriamide modified after, crosslink density greatly enhances, so that Lauxite has the characteristics that water-tolerant, good toughness, easy to process, low energy consumption.
Description
Technical field
The present invention relates to resin modified technical field more particularly to a kind of water-fast Lauxite and preparation methods.
Background technique
Lauxite, also known as urea-formaldehyde resin, abbreviation UF, since nineteen twenty-one synthesizes the first Lauxite, by
In with cheap, rapidly, the advantages that cohesive force is strong and of light color, is widely used in manufacturing moulded plastic, daily for solidification
Life product and electric parts also act as slurry, thick china, decorative panel for building of plate adhesive, paper and fabric etc..2005
For global Lauxite consumption figure up to 6,500,000 tons, China reaches about 1,600,000 tons.
Containing a large amount of highly polar groups in Lauxite, there is natural affinity to water, so water electrode easily invades ureaformaldehyde
Inside resin, cause being greatly reduced for bonding force and intensity, and water also has certain destruction to ground and material to be bonded,
Improving the water resistance of Lauxite for a long time is people's question of common concern.
Summary of the invention
The purpose of the present invention is intended to provide a kind of water-fast Lauxite and preparation method.
The technical scheme is that a kind of water-fast Lauxite, the water-fast Lauxite is by Lauxite, hydroxide
Sodium, phosphoric acid, modifying agent, toughener and deionized water form, the difference of parts by weight shared by water-fast each ingredient of Lauxite
Are as follows: 80~90 parts of Lauxite, 30~35 parts of sodium hydroxide, 8~22 parts of phosphatase 11,3~6 parts of modifying agent, 1~3 part of toughener,
8~10 parts of deionized water, the modifying agent is polyvinyl alcohol or melamine, and the toughener is toluene di-isocyanate(TDI).
In a preferred embodiment of the present invention, parts by weight shared by each ingredient of water-fast Lauxite specifically:
82 parts of Lauxite, 30 parts of sodium hydroxide, 9 parts of phosphatase 11,3 parts of polyvinyl alcohol, 2 parts of toluene di-isocyanate(TDI), 8 parts of deionized water.
In a preferred embodiment of the present invention, parts by weight shared by each ingredient of water-fast Lauxite specifically:
86 parts of Lauxite, 33 parts of sodium hydroxide, 21 parts of phosphoric acid, 5 parts of melamine, 3 parts of toluene di-isocyanate(TDI), deionized water 10
Part.
The preparation method of the water-fast Lauxite, comprising the following steps:
(1) Lauxite is put into three mouthfuls of reaction kettles equipped with thermometer, blender and condenser, is warming up to 85~90 DEG C,
Sodium hydroxide is slowly added dropwise, adjusts pH value to 12, modifying agent and toughener is added, stirs 30~40 minutes, keeps the temperature 2~3 hours
Carry out etherification reaction；
(2) the etherificate bunching reactant that step (1) obtains is added dropwise to 20% phosphoric acid, pH value is adjusted to 5.5, it is small to vacuumize 6~8
When so that solid part is reached 40%, then cool to 40~45 DEG C；
(3) 30% phosphoric acid, adjusting pH value to 4, mistake is added dropwise in the modified urea-formaldehyde resin deionized water thinning for obtaining step (2)
Water-fast Lauxite is obtained after filter.
Beneficial effects of the present invention: water-fast Lauxite of the invention passes through addition polyvinyl alcohol or cyanurotriamide modified
Afterwards, crosslink density greatly enhances, so that Lauxite has the characteristics that water-tolerant, good toughness, easy to process, low energy consumption.
Specific embodiment
Some specific embodiments given below are part preferred embodiment of the invention, what present invention be described in more detail
Embodiment detailed rules and regulations, but do not limit the invention to the range of following embodiments.
Embodiment 1
A kind of water-fast Lauxite, the water-fast Lauxite is by Lauxite, sodium hydroxide, phosphoric acid, polyvinyl alcohol, toluene two
Isocyanates and deionized water form, and parts by weight shared by water-fast each ingredient of Lauxite are respectively as follows: Lauxite 85
Part, 30 parts of sodium hydroxide, 8 parts of phosphatase 11,3 parts of polyvinyl alcohol, 1 part of toluene di-isocyanate(TDI), 8 parts of deionized water.
The preparation method of the water-fast Lauxite, comprising the following steps:
(1) Lauxite is put into three mouthfuls of reaction kettles equipped with thermometer, blender and condenser, is warming up to 85 DEG C, slowly
Sodium hydroxide is added dropwise, adjusts pH value to 12, polyvinyl alcohol and toluene di-isocyanate(TDI) is added, stir 30 minutes, heat preservation 3 hours into
Row etherification reaction；
(2) the etherificate bunching reactant that step (1) obtains is added dropwise to 20% phosphoric acid, adjusts pH value to 5.5, vacuumizing 6 hours makes
Solid part reaches 40%, then cools to 40 DEG C；
(3) 30% phosphoric acid, adjusting pH value to 4, mistake is added dropwise in the modified urea-formaldehyde resin deionized water thinning for obtaining step (2)
Water-fast Lauxite is obtained after filter.
Embodiment 2
A kind of water-fast Lauxite, the water-fast Lauxite is by Lauxite, sodium hydroxide, phosphoric acid, melamine, toluene two
Isocyanates and deionized water form, and parts by weight shared by water-fast each ingredient of Lauxite are respectively as follows: Lauxite 86
Part, 33 parts of sodium hydroxide, 20 parts of phosphoric acid, 4 parts of melamine, 2 parts of toluene di-isocyanate(TDI), 9 parts of deionized water.
The preparation method of the water-fast Lauxite, comprising the following steps:
(1) Lauxite is put into three mouthfuls of reaction kettles equipped with thermometer, blender and condenser, is warming up to 88 DEG C, slowly
Sodium hydroxide is added dropwise, adjusts pH value to 12, melamine and toluene di-isocyanate(TDI) is added, stirs 37 minutes, keeps the temperature 2.5 hours
Carry out etherification reaction；
(2) the etherificate bunching reactant that step (1) obtains is added dropwise to 20% phosphoric acid, pH value is adjusted to 5.5, vacuumizes 6.5 hours
So that solid part is reached 40%, then cools to 42 DEG C；
(3) 30% phosphoric acid, adjusting pH value to 4, mistake is added dropwise in the modified urea-formaldehyde resin deionized water thinning for obtaining step (2)
Water-fast Lauxite is obtained after filter.
Embodiment 3
A kind of water-fast Lauxite, the water-fast Lauxite is by Lauxite, sodium hydroxide, phosphoric acid, melamine, toluene two
Isocyanates and deionized water form, and parts by weight shared by water-fast each ingredient of Lauxite are respectively as follows: Lauxite 90
Part, 34 parts of sodium hydroxide, 22 parts of phosphoric acid, 6 parts of melamine, 2 parts of toluene di-isocyanate(TDI), 10 parts of deionized water.
The preparation method of the water-fast Lauxite, comprising the following steps:
(1) Lauxite is put into three mouthfuls of reaction kettles equipped with thermometer, blender and condenser, is warming up to 90 DEG C, slowly
Sodium hydroxide is added dropwise, adjusts pH value to 12, melamine and toluene di-isocyanate(TDI) is added, stir 40 minutes, heat preservation 3 hours into
Row etherification reaction；
(2) the etherificate bunching reactant that step (1) obtains is added dropwise to 20% phosphoric acid, adjusts pH value to 5.5, vacuumizing 7 hours makes
Solid part reaches 40%, then cools to 45 DEG C；
(3) 30% phosphoric acid, adjusting pH value to 4, mistake is added dropwise in the modified urea-formaldehyde resin deionized water thinning for obtaining step (2)
Water-fast Lauxite is obtained after filter.
Claims (4)
1. a kind of water-fast Lauxite, it is characterised in that: the water-fast Lauxite by Lauxite, sodium hydroxide, phosphoric acid, change
Property agent, toughener and deionized water composition, parts by weight shared by water-fast each ingredient of Lauxite are respectively as follows: Lauxite
80~90 parts, 30~35 parts of sodium hydroxide, 8~22 parts of phosphatase 11,3~6 parts of modifying agent, 1~3 part of toughener, deionized water 8~
10 parts, the modifying agent is polyvinyl alcohol or melamine, and the toughener is toluene di-isocyanate(TDI).
2. water-fast Lauxite according to claim 1, it is characterised in that: weight shared by water-fast each ingredient of Lauxite
Measure number specifically: 82 parts of Lauxite, 30 parts of sodium hydroxide, 9 parts of phosphatase 11,3 parts of polyvinyl alcohol, toluene di-isocyanate(TDI) 2
Part, 8 parts of deionized water.
3. water-fast Lauxite according to claim 1, it is characterised in that: weight shared by water-fast each ingredient of Lauxite
Measure number specifically: 86 parts of Lauxite, 33 parts of sodium hydroxide, 21 parts of phosphoric acid, 5 parts of melamine, toluene di-isocyanate(TDI) 3
Part, 10 parts of deionized water.
4. the preparation method of water-fast Lauxite according to claim 1, which comprises the following steps:
(1) Lauxite is put into three mouthfuls of reaction kettles equipped with thermometer, blender and condenser, is warming up to 85~90 DEG C,
Sodium hydroxide is slowly added dropwise, adjusts pH value to 12, modifying agent and toughener is added, stirs 30~40 minutes, keeps the temperature 2~3 hours
Carry out etherification reaction；
(2) the etherificate bunching reactant that step (1) obtains is added dropwise to 20% phosphoric acid, pH value is adjusted to 5.5, it is small to vacuumize 6~8
When so that solid part is reached 40%, then cool to 40~45 DEG C；
(3) 30% phosphoric acid, adjusting pH value to 4, mistake is added dropwise in the modified urea-formaldehyde resin deionized water thinning for obtaining step (2)
Water-fast Lauxite is obtained after filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711415072.2A CN109957081A (en) | 2017-12-25 | 2017-12-25 | A kind of water-fast Lauxite and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711415072.2A CN109957081A (en) | 2017-12-25 | 2017-12-25 | A kind of water-fast Lauxite and preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109957081A true CN109957081A (en) | 2019-07-02 |
Family
ID=67020468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711415072.2A Pending CN109957081A (en) | 2017-12-25 | 2017-12-25 | A kind of water-fast Lauxite and preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109957081A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1865343A (en) * | 2005-05-20 | 2006-11-22 | 中国石油天然气股份有限公司 | Process for preparing urea-formaldehyde resin additive, preparation method and uses |
| CN106281156A (en) * | 2016-08-25 | 2017-01-04 | 安徽大松树脂有限公司 | A kind of high-strength water-resistance modified adhesive |
| CN107298957A (en) * | 2017-07-31 | 2017-10-27 | 安徽佳诺威木业有限公司 | A kind of preparation method of high-strength water-resistance urea-formaldehyde resin adhesive |
-
2017
- 2017-12-25 CN CN201711415072.2A patent/CN109957081A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1865343A (en) * | 2005-05-20 | 2006-11-22 | 中国石油天然气股份有限公司 | Process for preparing urea-formaldehyde resin additive, preparation method and uses |
| CN106281156A (en) * | 2016-08-25 | 2017-01-04 | 安徽大松树脂有限公司 | A kind of high-strength water-resistance modified adhesive |
| CN107298957A (en) * | 2017-07-31 | 2017-10-27 | 安徽佳诺威木业有限公司 | A kind of preparation method of high-strength water-resistance urea-formaldehyde resin adhesive |
Non-Patent Citations (1)
| Title |
|---|
| 牛永生等: "低游离甲醛高强度耐水脲醛胶粘剂研究", 《西南工学院学报》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104140773B (en) | One can repairing type wood tegument veener tackiness agent and synthetic method thereof | |
| CN104403088A (en) | Modified polyether amine epoxy curing agent and preparation method thereof | |
| CN104497964B (en) | Fibre board use is without aldehyde defatted soy flour base adhesive and preparation method thereof | |
| CN103484045B (en) | Adhesive with ultralow formaldehyde release amount, and preparation method of same | |
| CN103213178A (en) | Thin blockboard and manufacturing method thereof | |
| CN104312524A (en) | High-performance ultraviolet-curable modified adhesive and preparation method thereof | |
| CN106281112A (en) | A kind of antibacterial Oryza glutinosa glue and preparation method thereof | |
| CN104762059B (en) | A kind of modified soy-bean protein base adhesive and preparation method thereof | |
| GB2524462A (en) | Algal Bio-adhesives: Compositions, Process for Manufacturing, Formulations and Uses | |
| CN107805001A (en) | A kind of preparation method of antibacterial flame-retardant artificial quartz stone plate | |
| CN109957081A (en) | A kind of water-fast Lauxite and preparation method | |
| CN104762040B (en) | A kind of Low Toxicity Urea-Formaldehyde Resin Adhesive and preparation method thereof | |
| CN105330939A (en) | Antibacterial and anticorrosion wood-plastic composite for building and preparation method of antibacterial and anticorrosion wood-plastic composite | |
| CN102031084B (en) | Preparation method of bacteriostatic isolated soy protein adhesive | |
| CN106242881A (en) | A kind of preparation method improving humic acids quality | |
| CN104789169A (en) | Rubber bonding film, preparation method of rubber bonding film as well as method for using rubber bonding film for bonding soles | |
| CN104513641A (en) | Preparation method of low formaldehyde emission adhesive | |
| CN104497937A (en) | Low-molar ratio modified adhesive for laminate flooring base material and preparation method thereof | |
| CN105271271A (en) | Water-soluble calcium silicate and preparation method thereof | |
| CN106590524A (en) | Method for preparing corrosion-resistant soybean protein adhesive by using sodium tetraborate as preservative | |
| CN104762026B (en) | Multi-plywood Lauxite filler and preparation method thereof | |
| CN106009747B (en) | A kind of plant fiber tableware of safety and environmental protection | |
| CN102399514B (en) | Formaldehyde eliminating agent and preparation method thereof | |
| CN103571384A (en) | Modified ethylene-vinyl-acetate (eva) resin hot melt adhesive | |
| CN102952333B (en) | Improved polypropylene (PP) dinner plate material and processing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190702 |
|
| RJ01 | Rejection of invention patent application after publication |