News Details
Flame retardant of polyester resin powder
2017-11-2 11:12:14
Flame retardant of polyester resin powder
Preparation of polyester resin powder coating and coating film. According to the 98.4g 1.1g beta -HAA polyester resin, polyester resin powder curing agent, leveling agent 0.1g 0.4g of benzoin and milling, the process comprises the steps of proportioning, mixing, extruding, crushing and sieving.
The use of electrostatic spraying (voltage of 40 ~ 50kV, 4 ~ 5m2/h spray gas flow rate, powder amount of 3 ~ 18kg/h) method to make the powder coating, polyester resin powder curing agent adsorbed on the surface of the substrate, respectively in 155, 160, 165 and 170 degrees C 5, 8, 10 cured and 14 min the film (film thickness of 60 ~90 m), film performance detection in air after cooling to room temperature.
FTIR-850 by Fourier transform infrared spectroscopy (FT-IR) analysis of resin structure, determination of the range of 400 ~ 4000 cm? 1, precision 0.01 cm 1?. Take a small amount of polyester resin powder with anhydrous potassium chloride mixed grinding, and then pressed samples, the absorption peaks map to verify whether the structure of polyester resin production to meet the expected design.
The future will strengthen the development of flame retardant polyester resin powder with multiple functional groups, such as P, N, Cl, Br or other halogen in one flame retardant polyester resin powder, due to a variety of synergistic effect in the molecule, good flame retardant effect. The development of multi functional polyester resin powder such as plasticizer, flame retardant and smoke suppression, anti vibration, anti static, expand the scope of application.
Crystallinity of resins. The polyester resin grinding into fine powder, using X ray diffraction (XRD) analysis of the crystal resin, and the peak separation method to calculate the crystallinity.
Artificial aging resistance of coating. According to GB 5237.4 - 2008 "Aluminum Alloy building materials - Part fourth: artificial aging weather resistance powder coating profiles" QUV/Spray UV accelerated aging test coating machine, using UVB-313 fluorescent UV lamp, wavelength 310nm, irradiation intensity 0.71W/m2, 60 degrees C UV 4h+ 50 ~ C 4H 1000h condensation.
Characterization of weatherability of coatings with light retention rate. Glossness meter 60 degree gloss with A-4520 mirror, light rate = (test / test gloss Sheen) * 100%. Determination of contrast color coating before and after artificial aging by colorimeter, coating color (L brightness or darkness, a said B said green or red, blue or yellow).
Adhesion of film. Refer to GB/T 9286 - 1998 "Cross-cut test" paints and varnishes - Determination of dry and wet coating and adhesion with boiling water, blade, spacing of 2mm, forming a grid graph, tape affixed to 60 degrees apart, to observe the shedding of.
Indentation hardness. GB/T 9275 - 2008 "QHY Buchholz indentation test instrument for determination of indentation hardness paints and varnishes Buchholz indentation test", indentation hardness indentation length = 100.
Triphenyl Phosphate (TPP)
Flame retardant TPP has many advantages, such as excellent transparency, softness, bacterial resistance, and water proof, grease-proof, good electric insulation, as well as good compatibility. Flame retardant TPP is mainly used as the flame-retardant plasticizer for cellulose resin, vinyl resin, natural rubber and synthetic rubber. And it may also be used as the flame-retardant plasticizer for glyceryl triacetate thin ester and film, rigid polyurethane foam, phenolic aldehyde resin, and PPO, etc.
Flame retardant TPP is a kind of halogen-free environment-friendly flame retardant with phosphorus element. Most of the products in the market are self-colored flaky crystal, our product is self-colored crystalline powder, and is more soluble in organic solvents. TPP is not soluble in water, but soluble in benzene, chloroform, ether and acetone, and slightly soluble in Z alcohol. Flame retardant TPP is nonflammable with slight aromatic odor and slight deliquescence. The fusion point is about 50 ℃, and fast melts to hoop-shape when heated. The lubricate effect is excellent, and it is often used as the flame retardant plasticize lubricant. What is more, it is used as the flame retardant for many plastics and resins, such as phenolic aldehyde resin, epoxy resin and so on.
Impact resistance. Refer to GB/T 1732 - 1993 "film impact resistance" determination, determination of impact resistance by CJQ-II impact tester, weight is 1kg, the height of 600 mm, the weight drop does not cause the coating crack or fall off as qualified.
Stamping performance. According to GB/T 9753 - 2007 "paints and varnishes" cupping test with GBW-50 cupping testing machine test of coating stamping properties, punch for 20 mm diameter hemispherical indentation depth 5mm.
Salt tolerant acidity. According to GB5237.4 - 2008 with chemically pure hydrochloric acid (P = 1.19 g/mL) and GB/T 6682 - 2008 "analytical laboratory use specification and test methods" provisions of the three grade water with [V hydrochloric acid solution (hydrochloric acid): V (water): 9] = 1, then 10 drops in the film surface, the surface cover plate. In 18 ~ 27 DEG C in 15 min after washed with tap water, dry film surface visual inspection.
Solvent resistance. According to the method of GB5237.4 - 2008 appendix B test the solvent resistance of film: Cotton immersed in xylene solution, saturated by the same route back and forth 30 times, then rinse with water, place observation surface condition after 2 h.
Using neopentyl glycol, adipic acid, terephthalic acid, Ding Ji acid and trimellitic anhydride three tin was developed for beta hydroxyalkylamide (? P? HAA) low temperature curing polyester resin system. By using X ray diffraction analysis method of low temperature curing polyester resin crystallinity, and the molecular structure was characterized by Fourier transform infrared spectrometer.
The polyester resin prepared by powder coating, electrostatic spraying in 6063 Aluminum Alloy, by artificial accelerated aging test (QUV) effects of curing temperature and curing time on the film gloss retention rate (in order to reflect the influence of weather resistance coating). The powder coating curing at 160 degrees under the conditions of C/10min, 1000h in the film after the aging test the light rate is 93.6%, and the mechanical properties, acid resistance, salt fog corrosion, solvent resistance, heat resistance and excellent performance.
Thermosetting polyester powder coating has excellent outdoor performance and physical and mechanical properties, VOC spraying process does not produce environmental pollution, environmental friendly, simple process, easy to realize automation, powder Recyclable recycling, is currently a great amount of environmental protection has been widely used in powder coating, metal coating.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
Preparation of polyester resin powder coating and coating film. According to the 98.4g 1.1g beta -HAA polyester resin, polyester resin powder curing agent, leveling agent 0.1g 0.4g of benzoin and milling, the process comprises the steps of proportioning, mixing, extruding, crushing and sieving.
The use of electrostatic spraying (voltage of 40 ~ 50kV, 4 ~ 5m2/h spray gas flow rate, powder amount of 3 ~ 18kg/h) method to make the powder coating, polyester resin powder curing agent adsorbed on the surface of the substrate, respectively in 155, 160, 165 and 170 degrees C 5, 8, 10 cured and 14 min the film (film thickness of 60 ~90 m), film performance detection in air after cooling to room temperature.
FTIR-850 by Fourier transform infrared spectroscopy (FT-IR) analysis of resin structure, determination of the range of 400 ~ 4000 cm? 1, precision 0.01 cm 1?. Take a small amount of polyester resin powder with anhydrous potassium chloride mixed grinding, and then pressed samples, the absorption peaks map to verify whether the structure of polyester resin production to meet the expected design.
The future will strengthen the development of flame retardant polyester resin powder with multiple functional groups, such as P, N, Cl, Br or other halogen in one flame retardant polyester resin powder, due to a variety of synergistic effect in the molecule, good flame retardant effect. The development of multi functional polyester resin powder such as plasticizer, flame retardant and smoke suppression, anti vibration, anti static, expand the scope of application.
Crystallinity of resins. The polyester resin grinding into fine powder, using X ray diffraction (XRD) analysis of the crystal resin, and the peak separation method to calculate the crystallinity.
Artificial aging resistance of coating. According to GB 5237.4 - 2008 "Aluminum Alloy building materials - Part fourth: artificial aging weather resistance powder coating profiles" QUV/Spray UV accelerated aging test coating machine, using UVB-313 fluorescent UV lamp, wavelength 310nm, irradiation intensity 0.71W/m2, 60 degrees C UV 4h+ 50 ~ C 4H 1000h condensation.
Characterization of weatherability of coatings with light retention rate. Glossness meter 60 degree gloss with A-4520 mirror, light rate = (test / test gloss Sheen) * 100%. Determination of contrast color coating before and after artificial aging by colorimeter, coating color (L brightness or darkness, a said B said green or red, blue or yellow).
Adhesion of film. Refer to GB/T 9286 - 1998 "Cross-cut test" paints and varnishes - Determination of dry and wet coating and adhesion with boiling water, blade, spacing of 2mm, forming a grid graph, tape affixed to 60 degrees apart, to observe the shedding of.
Indentation hardness. GB/T 9275 - 2008 "QHY Buchholz indentation test instrument for determination of indentation hardness paints and varnishes Buchholz indentation test", indentation hardness indentation length = 100.
Triphenyl Phosphate (TPP)
Flame retardant TPP has many advantages, such as excellent transparency, softness, bacterial resistance, and water proof, grease-proof, good electric insulation, as well as good compatibility. Flame retardant TPP is mainly used as the flame-retardant plasticizer for cellulose resin, vinyl resin, natural rubber and synthetic rubber. And it may also be used as the flame-retardant plasticizer for glyceryl triacetate thin ester and film, rigid polyurethane foam, phenolic aldehyde resin, and PPO, etc.
Flame retardant TPP is a kind of halogen-free environment-friendly flame retardant with phosphorus element. Most of the products in the market are self-colored flaky crystal, our product is self-colored crystalline powder, and is more soluble in organic solvents. TPP is not soluble in water, but soluble in benzene, chloroform, ether and acetone, and slightly soluble in Z alcohol. Flame retardant TPP is nonflammable with slight aromatic odor and slight deliquescence. The fusion point is about 50 ℃, and fast melts to hoop-shape when heated. The lubricate effect is excellent, and it is often used as the flame retardant plasticize lubricant. What is more, it is used as the flame retardant for many plastics and resins, such as phenolic aldehyde resin, epoxy resin and so on.
Impact resistance. Refer to GB/T 1732 - 1993 "film impact resistance" determination, determination of impact resistance by CJQ-II impact tester, weight is 1kg, the height of 600 mm, the weight drop does not cause the coating crack or fall off as qualified.
Stamping performance. According to GB/T 9753 - 2007 "paints and varnishes" cupping test with GBW-50 cupping testing machine test of coating stamping properties, punch for 20 mm diameter hemispherical indentation depth 5mm.
Salt tolerant acidity. According to GB5237.4 - 2008 with chemically pure hydrochloric acid (P = 1.19 g/mL) and GB/T 6682 - 2008 "analytical laboratory use specification and test methods" provisions of the three grade water with [V hydrochloric acid solution (hydrochloric acid): V (water): 9] = 1, then 10 drops in the film surface, the surface cover plate. In 18 ~ 27 DEG C in 15 min after washed with tap water, dry film surface visual inspection.
Solvent resistance. According to the method of GB5237.4 - 2008 appendix B test the solvent resistance of film: Cotton immersed in xylene solution, saturated by the same route back and forth 30 times, then rinse with water, place observation surface condition after 2 h.
Using neopentyl glycol, adipic acid, terephthalic acid, Ding Ji acid and trimellitic anhydride three tin was developed for beta hydroxyalkylamide (? P? HAA) low temperature curing polyester resin system. By using X ray diffraction analysis method of low temperature curing polyester resin crystallinity, and the molecular structure was characterized by Fourier transform infrared spectrometer.
The polyester resin prepared by powder coating, electrostatic spraying in 6063 Aluminum Alloy, by artificial accelerated aging test (QUV) effects of curing temperature and curing time on the film gloss retention rate (in order to reflect the influence of weather resistance coating). The powder coating curing at 160 degrees under the conditions of C/10min, 1000h in the film after the aging test the light rate is 93.6%, and the mechanical properties, acid resistance, salt fog corrosion, solvent resistance, heat resistance and excellent performance.
Thermosetting polyester powder coating has excellent outdoor performance and physical and mechanical properties, VOC spraying process does not produce environmental pollution, environmental friendly, simple process, easy to realize automation, powder Recyclable recycling, is currently a great amount of environmental protection has been widely used in powder coating, metal coating.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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