News Details
Preparation of coatings for coatings with crosslinking agents
2017-7-4 23:48:44
Preparation of coatings for coatings with crosslinking agents
Design L16 (45) five factor four-level orthogonal test (a1b1d1e1, A1B2C2D2E2, A1B3C3D3E3,... A4B4C4D4E4, a total of 16) are the main formulations of the coatings. Among them, A representative AR quality score, factors B on behalf of AR and EMF than quality, factors AR mass fraction C on behalf of the Gr, factor D on behalf of ZnO and Zn3 (PO4) 2 mass ratio, E for ZnO and Zn3 (PO4) 2 AR quality score.
Other packing (red iron oxide, titanium dioxide, barium sulfate, silica, talcum powder), a total of 15.00%, water 15.00%, additives (rheological additives, dispersing agent, emulsifier, cosolvent, flow ping agent, pH regulator, defoamer, and active diluent, film-forming additives) 2.50%.
Use paint besmear brushs coating on steel P110 [chemical composition (mass fraction, %) of 0.35 C, Si, 0.37 0.70 Mn, P, 0.02 S, 0.01 Cr 1.10, 0.25, Mo Fe 97.20] or tin substrate surface, 20 ℃ under the table dry 3 h, in the constant temperature drying oven crosslinking for a quick coating sample. The base of P110 steel is used for the preparation of corrosion resistance, thermal stability and functional stability test samples. It is used to prepare coating mechanical properties (flexibility, hardness, impact strength, adhesion) and environmental performance test samples.
Orthogonal test of coating performance evaluation with reference to the rules in the literature: test base material for tin, each test to do multiple parallel sample, at least three sample test results is consistent or difference values within the standard; The performance indexes of each mechanical properties are graded, namely, the flexibility is divided into five grades, the hardness is 6, the impact strength is 5, and the adhesion level 5 is 100 points; The composite score was calculated as score = flexibility * 20% + pencil hardness x 25% + impact strength x 25% + adhesion x 30%. Among them, the adhesion test was referenced by GB/T 1720-1989; Hardness test referenced GB/T 6739-2006; Anti-impact performance test referenced GB/T 1732-1993; The flexibility test referenced GB/T 1731-1993.
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
Design L16 (45) five factor four-level orthogonal test (a1b1d1e1, A1B2C2D2E2, A1B3C3D3E3,... A4B4C4D4E4, a total of 16) are the main formulations of the coatings. Among them, A representative AR quality score, factors B on behalf of AR and EMF than quality, factors AR mass fraction C on behalf of the Gr, factor D on behalf of ZnO and Zn3 (PO4) 2 mass ratio, E for ZnO and Zn3 (PO4) 2 AR quality score.
Other packing (red iron oxide, titanium dioxide, barium sulfate, silica, talcum powder), a total of 15.00%, water 15.00%, additives (rheological additives, dispersing agent, emulsifier, cosolvent, flow ping agent, pH regulator, defoamer, and active diluent, film-forming additives) 2.50%.
Use paint besmear brushs coating on steel P110 [chemical composition (mass fraction, %) of 0.35 C, Si, 0.37 0.70 Mn, P, 0.02 S, 0.01 Cr 1.10, 0.25, Mo Fe 97.20] or tin substrate surface, 20 ℃ under the table dry 3 h, in the constant temperature drying oven crosslinking for a quick coating sample. The base of P110 steel is used for the preparation of corrosion resistance, thermal stability and functional stability test samples. It is used to prepare coating mechanical properties (flexibility, hardness, impact strength, adhesion) and environmental performance test samples.
Orthogonal test of coating performance evaluation with reference to the rules in the literature: test base material for tin, each test to do multiple parallel sample, at least three sample test results is consistent or difference values within the standard; The performance indexes of each mechanical properties are graded, namely, the flexibility is divided into five grades, the hardness is 6, the impact strength is 5, and the adhesion level 5 is 100 points; The composite score was calculated as score = flexibility * 20% + pencil hardness x 25% + impact strength x 25% + adhesion x 30%. Among them, the adhesion test was referenced by GB/T 1720-1989; Hardness test referenced GB/T 6739-2006; Anti-impact performance test referenced GB/T 1732-1993; The flexibility test referenced GB/T 1731-1993.
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
Using TGA/SDTA851E type thermal analyzer analysis and thermal stability properties of the coating, the scanning range of 40 ~ 600 ℃, 10 ℃ / min heating rate
Using the NICOLET 6700 Fourier transform infrared spectrometer to represent the coating products, the test wave number ranges from 500 ~ 4000cm to 1.
Using WP6800 sniffer test coating organic matter, total volatile organic compound (TVOC) and formaldehyde (experiment) evaporation intensity to environmental performance evaluation, the organic matter sniffer correction for 1 h in dry and ventilated place, and then Gr modified water-borne acrylic resin coating coated on the tin, then aim the sniffer mouth coating, recorded every 5 min 1 screen values, and not add graphene acrylic resin coating, dispersive sampling, collecting accuracy is 0.1%.
Using electrochemical workstation PGSTAT302 electrochemical tests, three electrodes measuring system, sample as working electrode, test area 1 cm2, coating thickness of 0.3 mm, platinum as auxiliary electrode, saturated calomel as the reference electrode, the electrochemical test medium is 3.5% NaCl solution, test frequency range of 1.0 x (10-2 ~ 105 Hz), the disturbance signal of 20 mV sine wave).
Chemical resistance: will the Gr modified coating sample in the mass fraction of 10% NaCl, HCl and NaOH solution in 40 ℃ under completely immerse 10 d, observing the sample surface morphology, and did not add Gr acrylic resin coatings were compared.
The test of the coating on the orthogonal test was carried out according to the mechanical performance test standard, and the results of the multi-index comprehensive score of the coating mechanical properties were obtained.
According to the analysis of the orthogonal test scores, the important degree of each factor is C > B > A > A > E, and the optimal formulation of the coating is A3B3C3D2E2.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Using TGA/SDTA851E type thermal analyzer analysis and thermal stability properties of the coating, the scanning range of 40 ~ 600 ℃, 10 ℃ / min heating rate
Using the NICOLET 6700 Fourier transform infrared spectrometer to represent the coating products, the test wave number ranges from 500 ~ 4000cm to 1.
Using WP6800 sniffer test coating organic matter, total volatile organic compound (TVOC) and formaldehyde (experiment) evaporation intensity to environmental performance evaluation, the organic matter sniffer correction for 1 h in dry and ventilated place, and then Gr modified water-borne acrylic resin coating coated on the tin, then aim the sniffer mouth coating, recorded every 5 min 1 screen values, and not add graphene acrylic resin coating, dispersive sampling, collecting accuracy is 0.1%.
Using electrochemical workstation PGSTAT302 electrochemical tests, three electrodes measuring system, sample as working electrode, test area 1 cm2, coating thickness of 0.3 mm, platinum as auxiliary electrode, saturated calomel as the reference electrode, the electrochemical test medium is 3.5% NaCl solution, test frequency range of 1.0 x (10-2 ~ 105 Hz), the disturbance signal of 20 mV sine wave).
Chemical resistance: will the Gr modified coating sample in the mass fraction of 10% NaCl, HCl and NaOH solution in 40 ℃ under completely immerse 10 d, observing the sample surface morphology, and did not add Gr acrylic resin coatings were compared.
The test of the coating on the orthogonal test was carried out according to the mechanical performance test standard, and the results of the multi-index comprehensive score of the coating mechanical properties were obtained.
According to the analysis of the orthogonal test scores, the important degree of each factor is C > B > A > A > E, and the optimal formulation of the coating is A3B3C3D2E2.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
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