A kind of high elastic soft skin type polyurethane condom and its manufacturing method
A soft-skin, condom technology, used in male contraceptives and other directions, can solve problems such as low stretch ratio, low fault tolerance, skin allergies, etc., and achieve increased toughness and stretch ratio, good elasticity and strength, and increased The effect of friction
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Embodiment 1
[0023] A kind of high-elastic soft-skin type polyurethane condom is made of the following raw materials in parts by weight: containing a mass fraction of 28% unsaturated group polyester polyol (such as containing unsaturated group polyester diol or containing unsaturated group Saturated group adipic acid polyester, etc., hereinafter the same) emulsion 100 parts, containing mass fraction is 15% unsaturated group polyether polyol (such as polyoxypropylene diol containing unsaturated group, Polyoxypropylene triol containing unsaturated groups or polytetrahydrofuran diol containing unsaturated groups, etc., hereinafter the same) emulsion 24 parts, blocked isocyanate crosslinking agent 0.8 parts, defoaming agent (such as polyoxygen 0.3 parts of propylene glyceryl ether, the same below), 0.5 parts of water-based adhesion promoter, 2.5 parts of fulvic acid sealing agent, 4 parts of graphite, and 60 parts of sodium sulfate solution with a mass fraction of 1%.
[0024] The method for m...
Embodiment 2
[0040] The whole is consistent with Example 1, the difference is:
[0041]Among the raw materials: 100 parts of emulsion containing 25% unsaturated group polyester polyol, 25 parts of emulsion containing 15% unsaturated group polyether polyol, 0.5 parts of blocked isocyanate crosslinking agent 0.2 parts of defoaming agent, 0.2 parts of water-based adhesion promoter, 2 parts of fulvic acid sealing agent, 3 parts of graphite, and 50 parts of sodium sulfate solution with a mass fraction of 1%.
[0042] In the manufacturing method steps:
[0043] 1) Preparation of inner stock solution
[0044] ① Divide the graphite into three equal parts and make two straight graphite rods, and connect the two straight graphite rods to the positive and negative poles of the DC power supply with a voltage of 18V;
[0045] ②Insert the two graphite rods obtained in step ① into a container containing 50 parts of sodium sulfate solution with a mass fraction of 1% in parallel. The solution in the cont...
Embodiment 3
[0055] The whole is consistent with Example 1, the difference is:
[0056] Raw materials: 80 parts of emulsion containing 30% unsaturated group polyester polyol by mass fraction, 20 parts of emulsion containing 20% unsaturated group polyether polyol by mass fraction, blocked isocyanate crosslinking agent 1 0.5 parts of defoamer, 0.5 parts of water-based adhesion promoter, 3 parts of fulvic acid sealant, 5 parts of graphite, and 80 parts of sodium sulfate solution with a mass fraction of 1%.
[0057] In the manufacturing method steps:
[0058] 1) Preparation of inner stock solution
[0059] ① Divide the graphite into 5 equal parts and make two straight graphite rods;
[0060] 2) Preparation of outer stock solution
[0061] ① 80 parts of emulsion containing 30% unsaturated group polyester polyol, 20 parts of emulsion containing 20% unsaturated group polyether polyol, 0.5 part of defoamer, water-based Mix 0.5 parts of the focus accelerator and stir evenly to obtain the ou...
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