1,5-naphthalene diisocyanate type polyurethane elastomer and preparation method and application thereof
A technology of naphthalene diisocyanate and polyurethane elastomer, which is applied in the field of 1,5-naphthalene diisocyanate polyurethane elastomer and its preparation, and can solve the problems of strong resistance, general high temperature resistance, and large internal heat generation
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Embodiment 1
[0016] Example 1. The 1,5-naphthalene diisocyanate polyurethane elastomer in this embodiment includes component A and component B, and the component A and component B are constituted with a mass ratio of 100:21.5; the component A includes polyethylene Lactone polyols and polyisocyanates, in parts by weight, wherein the content of isocyanate groups is 6% (mass fraction), 100 parts of polycaprolactone polyols with a hydroxyl value of 109 mg KOH / g, 1,5-naphthalene diisocyanate 26 parts; the component B includes polycaprolactone polyol, 1,4-butanediol and stannous octoate, in parts by weight, wherein 60 parts of polycaprolactone polyol, 1,4-butanediol 35 parts, 2 parts of stannous octoate.
[0017] The preparation of above-mentioned 1,5-naphthalene diisocyanate type polyurethane elastomer is to carry out according to the following steps:
[0018] 1) Synthesis of prepolymer: Take 100 parts by weight of polycaprolactone polyol with a hydroxyl value of 109mgKOH / g and add it into th...
Embodiment 2
[0021] Example 2. The 1,5-naphthalene diisocyanate polyurethane elastomer in this embodiment includes component A and component B, and the component A and component B are constituted with a mass ratio of 100:22; the component A includes polyethylene Lactone polyols and polyisocyanates, in parts by weight, wherein the content of isocyanate groups is 6% (mass fraction), 103 parts of polycaprolactone polyols with a hydroxyl value of 112 mg KOH / g, 1,5-naphthalene diisocyanate 27 parts; the component B includes polycaprolactone polyol, 1,4-butanediol and stannous octoate, in parts by weight, wherein 63 parts of polycaprolactone polyol, 1,4-butanediol 38 parts, 2 parts of stannous octoate.
[0022] The preparation of above-mentioned 1,5-naphthalene diisocyanate type polyurethane elastomer is to carry out according to the following steps:
[0023] 1) Synthesis of prepolymer: Take 103 parts by weight of polycaprolactone polyol with a hydroxyl value of 112mgKOH / g and add it to the re...
Embodiment 3
[0026] Example 3. The 1,5-naphthalene diisocyanate type polyurethane elastomer in this embodiment comprises component A and component B, and described component A and component B constitute with mass ratio 100: 22.5; Described component A comprises polyethylene Lactone polyols and polyisocyanates, in parts by weight, wherein the content of isocyanate groups is 6% (mass fraction), 105 parts of polycaprolactone polyols with a hydroxyl value of 115 mg KOH / g, 1,5-naphthalene diisocyanate 28 parts; the component B includes polycaprolactone polyol, 1,4-butanediol and stannous octoate, in parts by weight, wherein 65 parts of polycaprolactone polyol, 1,4-butanediol 40 parts, 2 parts of stannous octoate.
[0027] The preparation of above-mentioned 1,5-naphthalene diisocyanate type polyurethane elastomer is to carry out according to the following steps:
[0028] 1) Synthesis of prepolymer: Take 105 parts by weight of polycaprolactone polyol with a hydroxyl value of 115 mgKOH / g, add it...
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