A kind of polyurethane runway using spandex waste silk as raw material and its preparation method

A technology of spandex waste silk and polyurethane, which is applied in the field of polyurethane application, can solve the problem of high cost of runways, and achieve the effects of reducing sports injuries, good compatibility and high safety

Active Publication Date: 2018-05-01
JIANGSU QIAOXIN FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cost of polyurethane plastic track is relatively high

Method used

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  • A kind of polyurethane runway using spandex waste silk as raw material and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A. Prepolymer component: 25 parts of MDI, 45 parts of polyether polyol (N-2020(Mn=2000));

[0020] B. Curing agent components: 15 parts of polyether diol (polyether diol DL-2000 (Mn=2000)), 10 parts of polyether triol (MN3050 (Mn=3000)), chain extender MOCA 5 parts, 52 30 parts of plasticizer chlorinated paraffin, 30 parts of filler kaolin, 5 parts of pigment, 0.5 parts of catalyst (a mixture of lead isocaprylate and zinc isooctanoate in mass ratio of 1:2), thixotropic agent (gas-phase white carbon Black) 1 part, antioxidant (antioxidant 1010) 0.15 part, ultraviolet absorber (UV-9) 0.1 part, spandex waste silk (diameter is 25 μ m, length is 5 mm) 60 parts. The spandex waste silk is the spandex waste silk after degreasing and finishing with a softener (polyether modified silicone oil H-193 (Jiangxi Haiduo Chemical Co., Ltd.)).

[0021] The preparation method of the above-mentioned polyurethane high elastic runway comprises the following steps, (1) the polyether polyol i...

Embodiment 2

[0025] A. Prepolymer component: 30 parts of MDI, 45 parts of polyether polyol (N-2020 (Mn=2000));

[0026] B. Curing agent components: 10 parts of polyether diol (polyether diol DL-2000 (Mn=2000)), 20 parts of polyether triol (MN3050 (Mn=3000)), chain extender MOCA 10 parts, plasticizer 52 20 parts of chlorinated paraffin, 25 parts of filler kaolin, 8 parts of pigment, 1 part of catalyst (the mass ratio of lead isooctanoate and zinc isooctanoate is 1:2), thixotropic agent (gas phase white carbon Black) 3 parts, antioxidant (antioxidant 1010) 0.1 part, ultraviolet absorber (UV-9) 0.15 part, spandex waste silk (diameter is 35 μ m, length is 3 mm) 55 parts. The spandex waste is degreased and treated with a softener (polyether modified silicone oil ZBH-2070 (Qingdao Zhongbao Chemical Co., Ltd.)).

[0027] The preparation method of the above-mentioned polyurethane high elastic runway comprises the following steps, (1) the polyether polyol in component A is vacuum dehydrated at 110...

Embodiment 3

[0031] A. Prepolymer components: 40 parts of MDI, 45 parts of polyether polyol (N-2020(Mn=2000));

[0032] B. Curing agent components: 15 parts of polyether diol (polyether diol DL-2000 (Mn=2000)), 15 parts of polyether triol (MN3050 (Mn=3000)), chain extender MOCA8 Parts, plasticizer 52 30 parts of chlorinated paraffin, 30 parts of filler kaolin, 10 parts of pigment, catalyst (a mixture of lead isocaprylate and zinc isooctanoate with a mass ratio of 1:2) 2 parts, thixotropic agent (fumed white carbon black ) 5 parts, 0.1 part of antioxidant (antioxidant 1010), 0.1 part of ultraviolet absorber (UV-9), 50 parts of spandex waste silk (50 μm in diameter, 5 mm in length). The spandex waste silk is the spandex waste silk after degreasing and finishing with a softener (polyether modified silicone oil SM-601 (Laiyang Shunming Chemical Co., Ltd.)).

[0033] The preparation method of the above-mentioned polyurethane high elastic runway comprises the following steps, (1) the polyether ...

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Abstract

The invention provides a polyurethane track which is composed of a prepolymer component A and a curing agent component B. The prepolymer component A is prepared from, by weight, 25-40 parts of MDI and 45 parts of polyether polyol. The curing agent component B is prepared from, by weight, 5-15 parts of polyether binary alcohol, 10-20 parts of polyether-tribasic alcohol, 5-10 parts of a chain extender, 15-30 parts of a plasticizer, 15-30 parts of filling, 5-10 parts of pigment, 0.5-2 parts of a catalyst, 1-5 parts of an additive and 50-60 parts of polyurethane fiber waste. By adding the polyurethane fiber waste in the formula, sport injuries caused by tumbling can be avoided, the polyurethane track is good in compatibility and strong in adhesive strength, avoids the phenomena of bubbles, stripping and the like, resists impact force, is high in elastic recovery rate, has the wear resistance smaller than 2.5%, meets the requirements for long-time and high-frequency using, absorbs impact force rapidly and is suitable for long-time training and competition. Due to the fact that the polyurethane fiber waste is added in the preparation process, the requirement for the water content in components of a curing agent is low, and the requirement for technological conditions is low and not harsh.

Description

technical field [0001] The invention belongs to the technical field of polyurethane application, and in particular relates to a polyurethane high-elastic track and a preparation method thereof. Background technique [0002] Spandex is the abbreviation of polyurethane elastic fiber, which has good elastic properties and breaking strength, so it is widely used in the field of textiles. At present, the main method of producing spandex is dry spinning, that is, the polyurethane solution is sprayed and stretched into a thin stream by means of a spinning device, and heated through a high-temperature spinning tunnel, the solvent in the stock solution is volatilized, and the thin stream is solidified into silk, and finally The finished product is wound with the help of a winding system. However, during the production process, a lot of waste silk is produced in the process of sticking of spandex yarn, yarn winding, yarn breaking, packaging, etc., which will increase the production c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L75/08C08L75/04C08L91/06C08K13/02C08G18/66C08G18/48C08G18/32
CPCC08G18/3814C08G18/4812C08G18/6685C08L75/08C08L2205/02C08L2205/03C08L2205/16C08L75/04C08L91/06C08K13/02
Inventor 潘瑞彬赵新伟
Owner JIANGSU QIAOXIN FIBER
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