News Details
PAM emulsion paint crosslinking agent
2017-6-23 23:53:21
PAM emulsion paint crosslinking agent
Thermal stability of modified PAM membrane. Different crosslinking agent content in PAM membrane of TG analysis shows that before 300 ℃, PAM membrane were no obvious decomposition, the initial decomposition temperature is 315 ℃, significantly higher than the pure PA membrane decomposition temperature (200 ℃), shows that after crosslinking structure was introduced, PA molecular inter-atomic forces, and increase its membrane after thermal stability.
The TG curve of different crosslinking agent content PAM membrane.
Micromorphological analysis of the modified PAM membrane. It can be observed that the uncrosslinked PA film has a rough surface, loose structure and continuous hole with micron size. In the process of film forming, there is no good crosslinking structure, and the crosslinking density between large molecules is relatively low. The membrane surface is relatively smooth, and the porous porous structure is not observed. In the process of high temperature forming, the interior of the PAM has formed a space network crosslinking structure, which is more likely to form dense and continuous film.
Water-borne acrylic resin as matrix, etherified melamine formaldehyde as the crosslinking agent made from solid content is 30% of the water containing crosslinking structure PAM emulsion, the emulsion has good appearance and storage stability.
At high temperature, the emulsion can solidify to form the structure of space network structure. Compared with the pure acrylic emulsion, etherified melamine resin crosslinking agent introduction makes the system to form the crosslinked structure, increase the force between the molecular chain, the molecules to enhance rigidity, tensile strength and hardness increase. The modified resin has some application prospects in the fields of electrostatic flocking adhesives, laminated materials and waterborne coatings.
Cellulose lacquer is a kind of coating which is mainly composed of natural cellulose after chemical treatment, and belongs to volatile type coating. It mainly depends on the volatilization of solvent and dry into film. The drying rate is quick and the film is very strong.
The advantages of cellulose lacquer: (1). The film has a quick dry finish, which is generally not stained in ten minutes. It can be dry after an hour, and some varieties can be dried even in righteous indignation. (2).hardness, toughness, membrane resistance, and resistance are no worse than other synthetic resins. Good durability, polished, easy to repair and maintain. (4). It is not easy to change color.
The defect of cellulose lacquer: (1). The material content of film of film of paint film is low, must be brushed many times. (2). Generally belongs to thermoplastic coating, which is sensitive to temperature. (3) use a large number of solvents to be hazardous to operators.
Butyl acetate paint: not deformed and stable; The solution is transparent. Of white water; Uv resistance; It can resist the infiltration of toughening agent and oxidant. Good adhesion to plastic surfaces; It can be used with amino resin, epoxy resin and acrylic resin. Small density, larger than other cellulose lacquer coating area; Can be dissolved in cheap organic solvents.
Chinese name: Diethyl toluene diamine(DETDA)
Chinese alias: aryl, aryl diethyl - aryl - methyl-p-phenylenediamine
English name: Benzenediamine, ar, ar-diethyl-ar-methyl-English aliases:Diethyltoluenediamine; ar, ar-Diethyl-ar-methylbenzenediamine;Diethylmethylbenzenediamine;
CAS No. :68479-98-1
EINECS No. :270 -877-4
Molecular formula: C11H18N2
Molecular Weight: 178.28
Boiling point: 310 ℃
Refractive index: 1.581
Flash Point: > 140 ℃
Inchi: InChI = 1/C11H18N2/c1-4-8-6-7 (3) 10 (12) 11 (13) 9 (8) 5-2/h6H ,4-5,12-13H2 ,1-3H3 density : 1.022
Risk Codes: R10; R35
RIDADR: UN 3082
Safety instructions: S2; S26; S39; S61
Packing Group: III
Hazard Class: 6.1
Ethyl cellulose paint spray paint (soft) : its advantage is alkali resistance is strong, also ability weak acid, flexibility is good, especially in the high temperature of 150 ℃ and do not crack under low temperature to 70 ℃, the sunlight, ultraviolet (uv) has good resistance.
Benzyl cellulose paint: has the high electrical insulation properties, the function also has the very high chemical stability, but the stability of the light is not good enough, and the price is higher, is not widely used.
The natural resin that is widely used in painting industry is almost completely modified natural resin which is the derivative of rosin.
Calcium fat, also known as lime rosin: it is characterized by the softening point of the paint film, but not the water and mechanical properties. It is commonly used in toy paint and used in conjunction with other resins.
2. Fat gum, also known as rosin gan oil: general furniture and architectural paint, can also be used with other resins.
3. Pentaerythritol cream: its characteristics are dry and quick, film hard, alkali-resistant, acid-resistant, gasoline and weather-resistant. It is used in conjunction with other resins.
4. Maleic anhydride resin: light color, good resistance to light and not yellow. For light color varnish and white enamel. Its advantage is to improve the hardness and luster of paint film, and the disadvantage is alkali resistance.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
Thermal stability of modified PAM membrane. Different crosslinking agent content in PAM membrane of TG analysis shows that before 300 ℃, PAM membrane were no obvious decomposition, the initial decomposition temperature is 315 ℃, significantly higher than the pure PA membrane decomposition temperature (200 ℃), shows that after crosslinking structure was introduced, PA molecular inter-atomic forces, and increase its membrane after thermal stability.
The TG curve of different crosslinking agent content PAM membrane.
Micromorphological analysis of the modified PAM membrane. It can be observed that the uncrosslinked PA film has a rough surface, loose structure and continuous hole with micron size. In the process of film forming, there is no good crosslinking structure, and the crosslinking density between large molecules is relatively low. The membrane surface is relatively smooth, and the porous porous structure is not observed. In the process of high temperature forming, the interior of the PAM has formed a space network crosslinking structure, which is more likely to form dense and continuous film.
Water-borne acrylic resin as matrix, etherified melamine formaldehyde as the crosslinking agent made from solid content is 30% of the water containing crosslinking structure PAM emulsion, the emulsion has good appearance and storage stability.
At high temperature, the emulsion can solidify to form the structure of space network structure. Compared with the pure acrylic emulsion, etherified melamine resin crosslinking agent introduction makes the system to form the crosslinked structure, increase the force between the molecular chain, the molecules to enhance rigidity, tensile strength and hardness increase. The modified resin has some application prospects in the fields of electrostatic flocking adhesives, laminated materials and waterborne coatings.
Cellulose lacquer is a kind of coating which is mainly composed of natural cellulose after chemical treatment, and belongs to volatile type coating. It mainly depends on the volatilization of solvent and dry into film. The drying rate is quick and the film is very strong.
The advantages of cellulose lacquer: (1). The film has a quick dry finish, which is generally not stained in ten minutes. It can be dry after an hour, and some varieties can be dried even in righteous indignation. (2).hardness, toughness, membrane resistance, and resistance are no worse than other synthetic resins. Good durability, polished, easy to repair and maintain. (4). It is not easy to change color.
The defect of cellulose lacquer: (1). The material content of film of film of paint film is low, must be brushed many times. (2). Generally belongs to thermoplastic coating, which is sensitive to temperature. (3) use a large number of solvents to be hazardous to operators.
Butyl acetate paint: not deformed and stable; The solution is transparent. Of white water; Uv resistance; It can resist the infiltration of toughening agent and oxidant. Good adhesion to plastic surfaces; It can be used with amino resin, epoxy resin and acrylic resin. Small density, larger than other cellulose lacquer coating area; Can be dissolved in cheap organic solvents.
Chinese name: Diethyl toluene diamine(DETDA)
Chinese alias: aryl, aryl diethyl - aryl - methyl-p-phenylenediamine
English name: Benzenediamine, ar, ar-diethyl-ar-methyl-English aliases:Diethyltoluenediamine; ar, ar-Diethyl-ar-methylbenzenediamine;Diethylmethylbenzenediamine;
CAS No. :68479-98-1
EINECS No. :270 -877-4
Molecular formula: C11H18N2
Molecular Weight: 178.28
Boiling point: 310 ℃
Refractive index: 1.581
Flash Point: > 140 ℃
Inchi: InChI = 1/C11H18N2/c1-4-8-6-7 (3) 10 (12) 11 (13) 9 (8) 5-2/h6H ,4-5,12-13H2 ,1-3H3 density : 1.022
Risk Codes: R10; R35
RIDADR: UN 3082
Safety instructions: S2; S26; S39; S61
Packing Group: III
Hazard Class: 6.1
Ethyl cellulose paint spray paint (soft) : its advantage is alkali resistance is strong, also ability weak acid, flexibility is good, especially in the high temperature of 150 ℃ and do not crack under low temperature to 70 ℃, the sunlight, ultraviolet (uv) has good resistance.
Benzyl cellulose paint: has the high electrical insulation properties, the function also has the very high chemical stability, but the stability of the light is not good enough, and the price is higher, is not widely used.
The natural resin that is widely used in painting industry is almost completely modified natural resin which is the derivative of rosin.
Calcium fat, also known as lime rosin: it is characterized by the softening point of the paint film, but not the water and mechanical properties. It is commonly used in toy paint and used in conjunction with other resins.
2. Fat gum, also known as rosin gan oil: general furniture and architectural paint, can also be used with other resins.
3. Pentaerythritol cream: its characteristics are dry and quick, film hard, alkali-resistant, acid-resistant, gasoline and weather-resistant. It is used in conjunction with other resins.
4. Maleic anhydride resin: light color, good resistance to light and not yellow. For light color varnish and white enamel. Its advantage is to improve the hardness and luster of paint film, and the disadvantage is alkali resistance.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
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