A kind of polyurethane material, polyurethane foam
A polyurethane material and isocyanate technology, which is applied in the field of polyurethane materials, can solve problems such as poor dimensional stability, low initial strength, and influence on assembly, and achieve the effects of high initial hardness, simple use method, and reduced odor
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Embodiment 1-3、 comparative example 1-3
[0086] Preparation method of component A: add each component according to the corresponding parts by mass and stir and mix evenly to obtain the corresponding component A.
[0087] Odor test of polyurethane foam: mix component A and component B evenly in an open container, and obtain the corresponding polyurethane foam after it is completely foamed and cured, cut the polyurethane foam into 1-2cm cubes, and cut 45g of Put the foam cubes into a standard glass scent bottle and tighten the cap; place the scent bottle in an oven at 80°C for 2 hours, take it out, and open the bottle cap to smell. The test method refers to PV3900
[0088] Table 1 Example 1-3, comparative example 1-3 each component addition amount and performance (addition amount is mass parts)
[0089]
Embodiment 4-10、 comparative example 4
[0090] Examples 4-10, Comparative Example 4: Polyurethane foams were prepared according to the formula shown in Table 2, and the addition amounts of each component were parts by mass.
[0091] The performance test result of table 2 embodiment formula
[0092]
[0093]Initial hardness test: Control the temperature of component A and component B to 25°C, mix and stir evenly according to the corresponding ratio, then pour the mixture into a mold with an actual mold temperature of 60-65°C, close the mold and hold the pressure for 4 minutes ; Immediately after opening the mold, use a hardness tester to test the hardness of the foam in the mold. Hardness test standard refers to GB / T531.1-2008.
[0094] A component viscosity test standard refers to GB / T12008.7-2010.
[0095] As can be seen from Table 1 and Table 2, the odor of the polyurethane material prepared by the deodorant of the present invention is significantly reduced, and the polyurethane foam prepared by the formula o...
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