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Wide-seam double-component vertical polyurethane sealant and production process thereof

A technology of polyurethane sealant and production process, which is applied in the direction of polyurea/polyurethane adhesives, adhesives, and other chemical processes. It can solve problems such as poor adhesion, high labor intensity, and unguaranteed quality, and achieve simple construction and high product quality. The effect of improving quality and shortening construction period

Inactive Publication Date: 2018-03-09
乌鲁木齐市新荣得化工有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The thixotropy of the polyurethane building sealing materials currently available in the market is only for the expansion and contraction of the concrete map with a gap width of 1.2-3cm and a relatively small slope. For wider slope gaps, there is flow, multiple sizing, high labor intensity, and poor adhesion. (two layers of leather), the quality cannot be guaranteed

Method used

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  • Wide-seam double-component vertical polyurethane sealant and production process thereof
  • Wide-seam double-component vertical polyurethane sealant and production process thereof

Examples

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Effect test

Embodiment 1

[0037] The production process of two-component vertical polyurethane sealant for wide seams, such as Figure 1-2 Shown:

[0038] (1) Component A: Weigh 9.6 parts of polyoxypropylene triol ether (N3050), 4 parts of polyoxypropylene glycol ether (N220), and 2 parts of butyl acrylate, add them to the reaction kettle and heat to 100 in an oil bath After vacuum filtration at -120°C for 2 hours; reduce the temperature to 60-75°C, add 3.5 parts by weight of TDI, stir and feed nitrogen, start from 60°C at 5°C / h to 85°C and react for 3 hours to obtain a prepolymer ;

[0039] (2) Part B: Weigh 100 parts of polyether (3050), 15 parts of butyl acrylate, 12.5 parts of dioctyl ester; dehydrate, dry 110 parts of mild calcium carbonate, 100 parts of heavy calcium carbonate, 25 parts of white carbon black, 15 parts of anti-sedimentation agent, and 8 parts of antioxidant (UV235) were mixed evenly in a kneader and then ground again with a three-roller mill to obtain a curing agent for the seco...

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Abstract

The invention discloses wide-seam double-component vertical polyurethane sealant and a production process thereof. The wide-seam double-component vertical polyurethane sealant is mainly prepared frompolyhydric alcohols, diisocyanate, acrylate, catalyst, co-solvent, stuffing, coagulation suppressing agent, thixotropic agent, an anti-precipitation agent, antioxidant, a coupling agent, and a chain expander cross-linking agent. The production process comprises the step of preparing a material A and a material B. The wide-seam double-component vertical polyurethane sealant has the advantages thatthe construction cost is decreased, the construction period is shortened, the construction is simpler, and the product quality is greatly improved.

Description

technical field [0001] The invention relates to a polyurethane sealant, in particular to a two-component vertical polyurethane sealant for wide seams and a production process thereof, belonging to the field of polyurethane sealants. Background technique [0002] The thixotropy of the polyurethane building sealing materials currently available in the market is only for the expansion and contraction of the concrete map with a gap width of 1.2-3cm and a relatively small slope. For wider slope gaps, there is flow, multiple sizing, high labor intensity, and poor adhesion. (two layers of leather), the quality cannot be guaranteed. Contents of the invention [0003] In order to solve the above problems, the present invention designs a two-component vertical polyurethane sealant for wide seams and its production process, which reduces the construction cost, shortens the construction period, makes the construction simpler, and greatly improves the product quality. [0004] Technic...

Claims

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Application Information

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IPC IPC(8): C09J175/14C09J11/04C09J11/06C08G18/67C08G18/66C08G18/48C08G18/12C09K3/10
CPCC08G18/12C08G18/48C08G18/6666C08G18/6795C08K3/26C08K3/36C08K13/02C08K2003/265C09J11/04C09J11/06C09J175/14C09K3/10
Inventor 楚伟理李帅
Owner 乌鲁木齐市新荣得化工有限责任公司
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