Method for rapidly evaluating freeze-thaw resistance of water-based polymer coating material
A water-based polymer and coating material technology, which is applied in the analysis of materials, flow characteristics, strength characteristics, etc., can solve the problems of time-consuming, heavy workload, and affecting the accuracy of experiments, so as to improve the overall quality and save time. Effect
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Examples
Embodiment 1
[0036] 1) Select 7 latex paint samples A, B, C, D, E, F, G (the mass fractions of antifreeze ethylene glycol in the samples are respectively: 0, 0.2%, 0.4%, 0.6%, 0.8%, 1.0%, 1.2%, the complete formulations of samples A to G are shown in Table 1), and the amplitude sweep test was carried out to measure the linear viscoelastic region and oscillation test recommended amplitude of the above-mentioned 7 samples at room temperature;
[0037] 2) According to the test conditions calculated in step 1), the initial rheological information of samples A, B, C, D, E, F, and G was measured using the rotational rheometer oscillation mode;
[0038] 3) Use a rheometer to perform a rheometer freeze-thaw cycle. During the cycle, measure the rheological information of the sample during the rheometer freeze-thaw cycle according to the test conditions calculated in step 1), and obtain the sample at Stable time at low temperature;
[0039] 4) After the sample returns to room temperature, according...
Embodiment 2
[0051] 1) Select 7 latex paint samples H, I, J, K, L, M, N (the mass percentages of antifreeze agent propylene glycol in the samples are respectively: 0, 0.2%, 0.4%, 0.6%, 0.8%, 1.0%, 1.2%, the complete formulations of samples H to N are shown in Table 3), and the amplitude sweep test was carried out to measure the linear viscoelastic region and the recommended amplitude of the oscillation test of the above-mentioned 7 samples at room temperature;
[0052] 2) According to the test conditions calculated in step 1), the initial rheological information of samples H, I, J, K, L, M, N is measured using a rotational rheometer oscillation mode;
[0053] 3) Use a rheometer to perform a rheometer freeze-thaw cycle. During the cycle, measure the rheological information of the sample during the rheometer freeze-thaw cycle according to the test conditions calculated in step 1), and obtain the sample at Stable time at low temperature;
[0054] 4) After the sample returns to room temperatu...
Embodiment 3
[0066] 1) Select 4 commercially available latex paint products of the same grade, which are: A company's products 1, 2, 3, B company's products 1, 2, 3, C company's products 1, 2, Nippon's products 1, 2. Carry out the amplitude scanning test to measure the linear viscoelastic region and the recommended amplitude of the oscillation test of the above 10 samples at room temperature;
[0067] 2) According to the test conditions calculated in step 1), the initial rheological information of the above-mentioned 10 samples was measured using the rotational rheometer oscillation mode;
[0068] 3) Use a rheometer to perform a rheometer freeze-thaw cycle. During the cycle, measure the rheological information of the sample during the rheometer freeze-thaw cycle according to the test conditions calculated in step 1), and obtain the sample at Stable time at low temperature;
[0069] 4) After the sample returns to room temperature, according to the test conditions calculated in step 1), use...
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Description
Claims
Application Information
- IPC
- G01N11/14; G01N3/60
- CPC
- G01N11/14; G01N3/60
- Inventors
- 周复荣; 熊绍泊