Preparations of bicomponent PSU type liquid rubber-based sealant and PSU liquid rubber thereof

A liquid rubber and sealant technology, applied in the field of sealants, can solve problems such as no single-component sealant reports, no mention of polyether types, no discussion of the influence of polyether properties, etc., to achieve excellent comprehensive mechanical properties, production The effect of low cost and simple preparation process

Inactive Publication Date: 2009-05-20
HENAN YONGLI CHEM
View PDF3 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the type of polyether is not indicated, and the influence of polyether functionality on the reaction and the structure and properties of modified polysulfide rubber is not discusse

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0040] Example 1: Two-component PSU type liquid rubber-based sealant and preparation method of PSU type liquid rubber

[0041] (1) Prepare a two-component PSU liquid rubber-based sealant according to the following formula, and each substance in the formula is expressed in parts by weight:

[0042] A component: PSU type liquid rubber 50, light calcium carbonate 40, heavy calcium carbonate 70, dibutyl phthalate 50, octyl phenolic tackifying resin 2, stearic acid 2, antioxidant AT-215 0.5, UV absorber UV-328 0.5.

[0043] B component: manganese dioxide 30, furnace carbon black 20, lithopone 20, light calcium carbonate 10, tetramethylthiuram disulfide 1, dibutyl phthalate 30, chlorinated paraffin 52 30 .

[0044] The A component and the B component are mixed uniformly according to the above formula and the conventional preparation method, and then packaged separately; the A component and the B component are mixed and used in a ratio of A:B=10:1. According to the requirements of GB / T 1...

Example Embodiment

[0047] Example 2: Two-component PSU type liquid rubber-based sealant and preparation method of PSU type liquid rubber

[0048] (1) Prepare a two-component PSU liquid rubber-based sealant according to the following formula, and each substance in the formula is expressed in parts by weight:

[0049] A component: PSU type liquid rubber 80, light calcium carbonate 40, heavy calcium carbonate 140, dibutyl phthalate 50, alkyl phenolic tackifying resin 4, stearic acid 2.5, antioxidant 264 0.8, Ultraviolet absorber UV-329 0.7.

[0050] B component: manganese dioxide 40, furnace carbon black 40, light calcium carbonate 20, zinc dibutyl dithiocarbamate 1, diphenylguanidine 1, dibutyl phthalate 30, chlorinated paraffin 5230 .

[0051] The A component and the B component are mixed uniformly according to the above formula and the conventional preparation method, and then packaged separately; the A component and the B component are mixed and used in a ratio of A:B=10:1. According to the require...

Example Embodiment

[0054] Example 3: Two-component PSU type liquid rubber-based sealant and preparation method of PSU type liquid rubber

[0055] (1) Prepare a two-component PSU liquid rubber-based sealant according to the following formula, and each substance in the formula is expressed in parts by weight:

[0056] A component: PSU type liquid rubber 90, light calcium carbonate 50, heavy calcium carbonate 120, dioctyl phthalate 60, C 5 Petroleum resin 10, stearic acid 3, antioxidant 1330 1, ultraviolet absorber UV-3281.

[0057] B component: calcium peroxide 40, white carbon black 30, lithopone 20, light calcium carbonate 10, tetramethylthiuram disulfide 1, dibenzothiazole disulfide 1, dioctyl phthalate 40, chlorinated paraffin 52 20.

[0058] The A component and the B component are mixed uniformly according to the above formula and the conventional preparation method, and then packaged separately; the A component and the B component are mixed and used in a ratio of A:B=12:1. According to the requi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a dual-component PSU-typed liquid rubber-based sealant and a preparation method of the PSU-typed liquid rubber, wherein, the sealant comprises a component A and a component B; the component A comprises PSU-typed liquid rubber, plasticizer, filling material, tackifier, antioxidant and vulcanization retarder; the component B comprises vulcanizing agent, vulcanization accelerator, plasticizer and filling material; and the component A and the component B are mixed together by normal method so as to prepare the finished product. The PSU-typed liquid rubber uses the mixture of polyether glycol and polyether-tribasic alcohol and polyisocyanate as raw materials to generate isocyanate-terminated polyurethane prepolymer under the action of acidic catalyst; furthermore, the isocyanate-terminated polyurethane prepolymer is terminated by sulfhydryl compounds to synthesize the sulfhydryl-terminated liquid rubber which takes the polyurethanes as main chain and has local crosslinking structure characteristic; the liquid rubber is taken as the basic rubber to prepare the sealant which has excellent mechanic performances and can be widely applied to the fields such as the construction of housing, plazas, roads, airports, bridges, hydraulic engineering, water conveyance project, sewage disposal engineering, and the like, the manufacture of automobiles, trains, containers, and the like, and the electric apparatuses, power, aeronautics and astronautics, and the like.

Description

1. Technical field: [0001] The invention relates to a sealant, in particular to a two-component PSU type liquid rubber-based sealant and a preparation method of the PSU type liquid rubber. 2. Background technology [0002] Sealant is a type of engineering material used to fill gaps (holes, joints or seams, etc.), and is widely used in devices and projects involving fluid storage, transmission, and energy conversion. When in use, it is a fluid or extrudable amorphous material, which is coated, extruded, and embedded in the part to be sealed through a certain process, and depends on temperature changes, solvent volatilization or chemical crosslinking to stabilize the adhesion with the substrate. Knots, and gradually set into a tough solid or elastic body. [0003] The main types of sealant are: polyurethane, polysulfide, silicone, acrylate, styrene-butadiene rubber, butyl rubber, asphalt and oily caulk, etc. Among them, polyurethane, polysulfide rubber and silicone sealant ha...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C09K3/10C09J175/08
Inventor 黄正强杨宏生张宪利郭步钦许书珍王玉广李健
Owner HENAN YONGLI CHEM
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap