Polyurethane foam with ultralow surface hardness and high press-to-sink ratio and preparation method thereof
A polyurethane foam and surface hardness technology, applied in the field of polyurethane, can solve the problems of high permanent compression set rate, different rebound time, and poor support, and achieve good hydrophilic performance, good thermal conductivity, and good support Effect
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[0031] Example 1
[0032] A polyurethane foam is made of the following raw materials in parts by weight:
[0033] Group A:
[0034]
[0035] Group B material:
[0036] 42 parts of isocyanate
Example Embodiment
[0037] Example 2
[0038] A polyurethane foam is made of the following raw materials in parts by weight:
[0039] Group A:
[0040]
[0041] Group B material:
[0042] 26 parts of isocyanate
Example Embodiment
[0043] Example 3
[0044] A polyurethane foam is made of the following raw materials in parts by weight:
[0045] Group A:
[0046]
[0047]
[0048] Group B material:
[0049] 34 parts of isocyanate
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