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1. Curing Agents Also Known As Hardeners, Curing Agents Or Stabilizers, Are A Class Of Substances Or Mixtures That Promote Or Control The Curing Reaction. The Resin Is Cured Through Chemical Reactions Such As Condensation, Ring Closure, Addition, Or Catalysis, Which Causes The Irreversible Change Of The Thermosetting Resin. Curing Is Accomplished By Adding A Curing Cross-Linking Agent. Curing Agent Is An Indispensable Additive, No Matter Whether It Is For Adhesives, Coatings, Or Castables, The Curing Agent Must Be Added, Otherwise The Epoxy Resin Cannot Be Cured. The Type Of Curing Agent Has A Great Influence On The Mechanical Properties, Heat Resistance, Water Resistance, And Corrosion Resistance Of The Cured Product.
2. The Principle Of The Chain Extender Is That Some Active Hydrogen-Containing Compounds Are Reacted With The Isocyanate-Terminated Prepolymer In The Production, Resulting In Molecular Chain Diffusion And Elongation. In Order To Achieve The Resin Curing Molding. 2-Imidazolidinone Is A Widely Used Chain Extender With An Imino-Active Hydrogen.
It Is Very Important For The Synthesis Of Polyurethane Adhesive And Sealant, Which Directly Affects The Mechanical Properties And Process Performance Of The Product. Chain Extenders Are Hydroxyl- Or Amino-Containing Low Molecular Weight Polyfunctional Alcohols Or Amines. Commonly Used Alcohol Chain Extenders Are 1,4-Butanediol (BDO), 1,6-Hexanediol, Glycerin, Trimethylolpropane, Diethylene Glycol (DEG), Triethylene Glycol, Neopentyl Glycol (NPG), Sorbitol, Diethylaminoethanol (DEAE), And The Like. Amine Chain Extenders Include MOCA And Liquid MOCA Modified With Formaldehyde, Ethylenediamine (DA), N,N-Dihydroxy(Diisopropyl)Aniline (HPA) And The Like. Hydroquinone (β-Hydroxyethyl) Ether (HQEE) Is Also Used As A Chain Extender For Polyurethane Adhesives. Its Heat Resistance, Hardness, And Elasticity Are Higher Than Those Of Commonly Used Chain Extenders.
Reagents Necessary For The Production Of Polyurethanes. Polyurethanes Are Prepolymers Derived From The Reaction Of Aliphatic And Aromatic Diisocyanate-Containing Monomers With Polyesters Or Polyethers Containing Dihydric Or Polyhydric Alcohols. The Chain Agent Shapes The Resin. The Commonly Used Chain Extension Is A Small Molecule Alcohol Containing A Divalent Or Polyvalent Hydroxyl Group, An Amino Group, An Imino Compound, Or An Ether Alcohol.
Crosslinking Agents Are Also Known As Curing Agents, Hardeners, And Curing Agents. They Can Convert Linear Or Lightly Branched Macromolecules Into A Three-Dimensional Network Structure, Thereby Increasing Strength, Heat Resistance, Abrasion Resistance, And Solvent Resistance. Sexual Properties, Can Be Used For Foaming Or Non-Foaming Products.
3. Crosslinkers Are Mainly Used In Polymer Materials (Rubber And Thermosetting Resins). Because The Molecular Structure Of A Polymer Material Is Like A Long Line, It Has A Low Strength When It Is Not Cross-Linked, It Is Easy To Pull Off, And It Has No Elasticity. The Effect Of The Cross-Linking Agent Is To Generate Chemical Bonds Between The Linear Molecules, Making The Linear Molecules Mutually Together, A Mesh Structure Is Formed To Increase The Strength And Elasticity Of The Rubber. The Cross-Linking Agent Used In The Rubber Is Mainly Sulfur, And An Accelerator Is Additionally Added.
Cross-Linking Agents Are A Class Of Small-Molecule Compounds With Molecular Weights Generally Between 200-600, With Two Or More Reactive Ends For Specific Groups (Amino, Sulfhydryl, Etc.) That Can Be Combined With Two Or More Molecules. Separate Couplings Bind These Molecules Together. In Life Science Research, Clever Use Of Cross-Linking Agents Can Make A Lot Of Work Breakthroughs.
2. The Principle Of The Chain Extender Is That Some Active Hydrogen-Containing Compounds Are Reacted With The Isocyanate-Terminated Prepolymer In The Production, Resulting In Molecular Chain Diffusion And Elongation. In Order To Achieve The Resin Curing Molding. 2-Imidazolidinone Is A Widely Used Chain Extender With An Imino-Active Hydrogen.
It Is Very Important For The Synthesis Of Polyurethane Adhesive And Sealant, Which Directly Affects The Mechanical Properties And Process Performance Of The Product. Chain Extenders Are Hydroxyl- Or Amino-Containing Low Molecular Weight Polyfunctional Alcohols Or Amines. Commonly Used Alcohol Chain Extenders Are 1,4-Butanediol (BDO), 1,6-Hexanediol, Glycerin, Trimethylolpropane, Diethylene Glycol (DEG), Triethylene Glycol, Neopentyl Glycol (NPG), Sorbitol, Diethylaminoethanol (DEAE), And The Like. Amine Chain Extenders Include MOCA And Liquid MOCA Modified With Formaldehyde, Ethylenediamine (DA), N,N-Dihydroxy(Diisopropyl)Aniline (HPA) And The Like. Hydroquinone (β-Hydroxyethyl) Ether (HQEE) Is Also Used As A Chain Extender For Polyurethane Adhesives. Its Heat Resistance, Hardness, And Elasticity Are Higher Than Those Of Commonly Used Chain Extenders.
Reagents Necessary For The Production Of Polyurethanes. Polyurethanes Are Prepolymers Derived From The Reaction Of Aliphatic And Aromatic Diisocyanate-Containing Monomers With Polyesters Or Polyethers Containing Dihydric Or Polyhydric Alcohols. The Chain Agent Shapes The Resin. The Commonly Used Chain Extension Is A Small Molecule Alcohol Containing A Divalent Or Polyvalent Hydroxyl Group, An Amino Group, An Imino Compound, Or An Ether Alcohol.
Crosslinking Agents Are Also Known As Curing Agents, Hardeners, And Curing Agents. They Can Convert Linear Or Lightly Branched Macromolecules Into A Three-Dimensional Network Structure, Thereby Increasing Strength, Heat Resistance, Abrasion Resistance, And Solvent Resistance. Sexual Properties, Can Be Used For Foaming Or Non-Foaming Products.
3. Crosslinkers Are Mainly Used In Polymer Materials (Rubber And Thermosetting Resins). Because The Molecular Structure Of A Polymer Material Is Like A Long Line, It Has A Low Strength When It Is Not Cross-Linked, It Is Easy To Pull Off, And It Has No Elasticity. The Effect Of The Cross-Linking Agent Is To Generate Chemical Bonds Between The Linear Molecules, Making The Linear Molecules Mutually Together, A Mesh Structure Is Formed To Increase The Strength And Elasticity Of The Rubber. The Cross-Linking Agent Used In The Rubber Is Mainly Sulfur, And An Accelerator Is Additionally Added.
Cross-Linking Agents Are A Class Of Small-Molecule Compounds With Molecular Weights Generally Between 200-600, With Two Or More Reactive Ends For Specific Groups (Amino, Sulfhydryl, Etc.) That Can Be Combined With Two Or More Molecules. Separate Couplings Bind These Molecules Together. In Life Science Research, Clever Use Of Cross-Linking Agents Can Make A Lot Of Work Breakthroughs.
| No. | Product Name | Cas No : |
| 1. | 4,4'-Methylenebis(N-sec-butylaniline)-MDBA | 5285-60-9 |
| 2. | 4,4'-Methylene-bis(3-chloro-2,6-diethylaniline)|Curing Agent Chain Extender MCDEA | 106246-33-7 |
| 3. | Diethyl toluene diamine(DETDA) | 68479-98-1 |
| 4. | Dimethyl thiotoluene diamine(DMTDA) | 106264-79-3 |
| 5. | Methyl Cyclohexanediamine|Alicyclic Amine Curing Agent Chain Extender HTDA | 13897-55-7 |
| 6. | 2,2-Bis(Hydroxymethyl)Propionic Acid|Chain Extender Hydrophilic Agent DMPA | 4767-03-7 |
| 7. | 2,2-Bis(Hydroxymethyl)Butyric Acid|Chain Extender Hydrophilic Agent DMBA | 10097-02-6 |
| 8. | Hydroquinone Bis(2-Hydroxyethyl)Ether|Aromatic Glycol Chain Extender HQEE-Solid | 104-38-1 |
| 9. | 1,3-Bis(2-Hydroxyethoxy)Benzene,Aromatic Glycol Chain Extender HER-Solid | 102-40-9 |
| 10. | 4-Hydroxyethyloxyethyl 1-Hydroxyethyl Benzene Diether|Chain Extender HQEE-Liquid | 849677-06-1 |
| 11. | 3-Hydroxyethyloxyethyl-1-Hydroxyethylbenzenediene|Chain Extender HER-Liquid | 777942-63-9 |
| 12. | Poly(1,4-Butanediol) Bis(4-Aminobenzoate)|P-1000 | 54667-43-5 |
| 13. | Dimethyldicyane|Cycloaliphatic Curing Agent Chain Extender DACM,MACM | 6864-37-5 |
| 14. | 4,4'-Methylenebis(2-Ethylbenzenamine)|Aromatic Diamine Chain Extender MOEA | 19900-65-3 |
| 15. | 4,4'-Methylenebis(2,6-diethylaniline)|Curing Agent Chain Extender MDEA | 13680-35-8 |
| 16. | 3-Chloro-3'-Ethyl-4,4'-Diaminodiphenylmethane | 55347-69-8 |
| 17. | 4,4'-Methylenebis(2-ethyl-6-methylaniline)|Chain Extender Curing Agent MMEA | 19900-72-2 |
| 18. | 4,4'-Diaminodicyclohexyl Methane|Fatty Amine Curing Agent Chain Extender PACM, HMDA | 1761-71-3 |
| 19. | Triallyl Isocyanurate|Crosslinker TAIC | 1025-15-6 |
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- Flame retardant TPP Whether dangerou
- 3-Chloro-3'-Ethyl-4,4'-Diaminodiphen
- Dimethyldicyane,DACM,MACM
- Fatty Amine Curing Agent Chain Exten
- Chain Extender Curing Agent MMEA
- Curing Agent Chain Extender MDEA
- Aromatic Diamine Chain Extender MOEA
- Chain Extender Hydrophilic Agent DMB
- TAIC
- Methyl Cyclohexanediamine
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