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Silane modified polyurethane adhesive for bottom layer material of plastic runway and preparation method and application of silane modified polyurethane adhesive

A polyurethane adhesive and silane modification technology, applied in polyurea/polyurethane adhesives, adhesives, adhesive types, etc., can solve problems such as human health hazards, achieve easy construction, ensure resin purity, and improve mechanical properties Effect

Inactive Publication Date: 2020-08-14
上海抚佳精细化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Therefore, the technical problem to be solved in the present invention is to overcome the defect that free isocyanate exists in the polyurethane slurry in the prior art, which will cause harm to human health, thereby providing a silane-modified base material for a plastic runway. Polyurethane adhesive and its preparation method and application

Method used

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  • Silane modified polyurethane adhesive for bottom layer material of plastic runway and preparation method and application of silane modified polyurethane adhesive
  • Silane modified polyurethane adhesive for bottom layer material of plastic runway and preparation method and application of silane modified polyurethane adhesive
  • Silane modified polyurethane adhesive for bottom layer material of plastic runway and preparation method and application of silane modified polyurethane adhesive

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Effect test

Embodiment 1

[0044] This embodiment relates to a bottom layer material of a plastic runway, which is prepared according to the following steps:

[0045] S1. Preparation of silane-modified polyurethane adhesive: Heat 80g of polyether polyol D240 and 20g of polyether polyol F330N in a 500ml three-necked flask to 110°C, then vacuumize to -0.01MPa for dehydration for 3h, then cool down to 60°C, Add 0.02g of zinc isooctanoate, stir for 30 minutes, then add 21g of 3-isocyanatopropyl triethoxysilane dropwise to the polyether polyol within 30 minutes, react for 1h, then raise the temperature to 95°C, and continue the reaction for 2.5h , to obtain silane-modified polyurethane resin;

[0046] When the temperature of the silane-modified polyurethane is lowered to 65°C, add 0.3g of n-octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate and 0.1g of phosphoric acid, and stir for 0.5h to obtain silane Modified polyurethane adhesive.

[0047] S2. Prepare the bottom material of the plastic runway: W...

Embodiment 2

[0049] This embodiment relates to a bottom layer material of a plastic runway, which is prepared according to the following steps:

[0050] S1. Preparation of silane-modified polyurethane adhesive: Heat 80g of polyether polyol D230 and 20g of polyether polyol F330N in a 500ml three-neck flask to 110°C, vacuumize to -0.01MPa for dehydration for 2h, then cool to 70°C, add 0.04g of dibutyltin dilaurate, stirred for 30 minutes, then added 24g of 3-isocyanatopropyl triethoxysilane dropwise to the polyether polyol within 30 minutes, reacted for 2 hours, raised the temperature to 95°C, and continued the reaction for 1.5 h, obtaining silane-modified polyurethane resin;

[0051] When the silane-modified polyurethane cools down to 60°C, add 0.2g of n-octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate and 0.1g of di-isooctyl phosphate, and stir for 1h , to obtain a silane-modified polyurethane adhesive.

[0052] S2, prepare the bottom material of the plastic runway: Weigh the bl...

Embodiment 3

[0054] This embodiment relates to a bottom layer material of a plastic runway, which is prepared according to the following steps:

[0055] S1. Preparation of silane-modified polyurethane adhesive: Heat 80g of polyether polyol D210 and 20g of polyether polyol F330N in a 500ml three-neck flask to 110°C, vacuumize to -0.01MPa for 2 hours, then cool down to 70°C, add 0.04g of bismuth isooctanoate, stirred for 30 minutes, then added dropwise 27g of 3-isocyanatopropyltrimethoxysilane into polyether polyol within 30 minutes, reacted for 2 hours, raised the temperature to 95°C, and continued to react for 1.5 hours to obtain Silane modified polyurethane resin;

[0056] When the silane-modified polyurethane cools down to 60°C, add 0.3g of β(3,5-di-tert-butyl-4-hydroxyphenyl) octyl propionate and 0.2g of di-isooctyl phosphate, and stir for 1 hour to obtain silane-modified polyurethane adhesive.

[0057] S2. Prepare the bottom material of the plastic runway: Weigh black rubber particle...

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Abstract

The invention relates to the field of adhesives, in particular to a silane modified polyurethane adhesive for a bottom layer material of a plastic runway and a preparation method and application of the silane modified polyurethane adhesive. The silane modified polyurethane adhesive is prepared from the following raw materials in parts by weight: 90 to 110 parts of polyether polyol, 20 to 30 partsof isocyanate silane, 0.1 to 1 part of an antioxidant, 0.01 to 0.05 part of a catalyst and 0.1 to 0.5 part of a stabilizer. The silane modified polyurethane adhesive has the advantages of being environmentally friendly, good in storage stability, low in viscosity, easy to construct and free of foaming after construction forming.

Description

technical field [0001] The invention relates to the field of adhesives, in particular to a silane-modified polyurethane adhesive for the bottom material of a plastic runway, a preparation method and application thereof. Background technique [0002] Plastic track, also known as all-weather track and field track, is usually composed of polyurethane prepolymer, mixed polyether, waste tire rubber, EPDM rubber, polyurethane particles, pigments, additives and fillers, etc. It has good flatness and compressive strength. The characteristics of high hardness, proper elasticity, and stable physical properties are beneficial to athletes' speed and technique, and reduce the rate of falls. It is internationally recognized as the best all-weather outdoor sports floor material. [0003] The full name of polyurethane is polyurethane, which is a general term for macromolecular compounds containing repeated carbamate groups on the main chain. It is formed by the addition polymerization of di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/08C09J11/06C08G18/71C08G18/48C08L21/00C08L75/08C08K5/134E01C13/06
CPCC08G18/4804C08G18/718C08L21/00C09J11/06C09J175/08E01C13/065C08K5/1345C08L75/08
Inventor 路明杨欢李玉博
Owner 上海抚佳精细化工有限公司
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