Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Polyurethane solid tire material and preparation method thereof

A solid tire and polyurethane technology, applied in the field of polyurethane materials, can solve the problems of easily polluting the environment and containing organic solvents

Inactive Publication Date: 2016-02-17
JIAXING HEXIN CHEM IND
View PDF4 Cites 24 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent CN200610033348 "A Polyurethane Solid Tire and Its Manufacturing Method" introduces oligomer polyol-diphenylmethane diisocyanate / toluene diisocyanate system and oligomer polyol-3,3'-dimethyl-4 , 4'-biphenyl diisocyanate system of polyurethane tires, but its formula contains organic solvents, easy to pollute the environment

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Polyurethane solid tire material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0014] The preparation method of this polyurethane solid tire material comprises the following steps:

[0015] (1) Polyesterification of dibasic acid and polyol under the action of catalyst B under the protection of nitrogen at 140°C-250°C until the acid value drops below 1mgKOH / g and the hydroxyl value is 30-200mgKOH / g The reaction is stopped at a time of g to obtain a polyester polyol; the functionality of the polyester polyol is controlled at 2 to 2.7.

[0016] (2) Preparation of component A: Add the polyester polyol prepared in step (1), chain extender, foaming agent, catalyst A, and foam stabilizer into the reactor, heat up to 50-80°C and mix evenly, then Cool to 35-40°C and discharge to obtain component A; the final product is liquid at 40-50°C, with a viscosity of about 200-600CPs.

[0017] (3) Preparation of component B: react the polyester polyol prepared in step (1) with polyether polyol and isocyanate in the presence of a side reaction terminator at 70-80°C for 2-3...

Embodiment 1

[0020] Preparation of polyester polyol 1: Mix 518gAA, 222gPTA, 203gEG, 203gDEG, 33.5gTMP and 5g catalyst tetraisobutyl titanate, heat to 240°C under nitrogen protection for polyesterification reaction, react for 20Hr, acid value is 0.3mgKOH / g, hydroxyl value 70mgKOH / g, stop the reaction, and make polyester polyol 960g.

Embodiment 2

[0022] Preparation of polyester polyol 2: Mix 470gAA, 117gPTA, 111gEG, 258gDEG, 22gTMP and 5g catalyst tetraisobutyl titanate, heat to 230°C under nitrogen protection for polyesterification reaction, reaction 18Hr, acid value 0.3mgKOH / g , The reaction was stopped when the hydroxyl value was 56 mgKOH / g, and 960 g of polyester polyol was obtained.

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

PropertyMeasurementUnit
Viscosityaaaaaaaaaa
Viscosityaaaaaaaaaa
Login to View More

Abstract

The invention relates to a polyurethane solid tire material. The polyurethane solid tire material comprises a component A and a component B, wherein the component A is a mixture prepared by mixing polyester polyol, a chain extender, a foaming agent, a catalyst A and a foam stabilizer according to a mass ratio of 100:(5 to 30):(0.3 to 3.0):(0.3 to 3.0):(0.3 to 2.5), the component B is prepared by prepolymerizing isocyanate, polyester polyol and polyether polyol under the existence of a side reaction inhibitor according to a mass ratio of 100:(20 to 50):(0 to 30), and the polyester polyol in the component A and the component B is prepared by prepolymerizing binary acid and polyhydric alcohols under the action of a catalyst B. The component A and the component B are fully mixed, and are then injected into a mold for reaction to form, and demolding and aging are performed, so as to prepare a tire product. The prepared tire product has the advantages of low density, stable size, high tread hardness, good abrasion resistance and good bonding capability with other accessories of the tire.

Description

technical field [0001] The invention belongs to the field of polyurethane materials, and in particular relates to a polyurethane solid tire material and a preparation method thereof. Background technique [0002] Polyurethane is a material with excellent performance. Among all elastomers, polyurethane rubber has the best wear resistance, so it is called "wear-resistant rubber". Compared with natural rubber, its wear resistance can be improved by 2 to 10 times as much. At the same time, it also has high mechanical strength and tear resistance, coupled with its excellent shock absorption and buffer performance, it has a better ability to "overcome rigidity with softness", and is more suitable for making various tire products use. Polyurethane tires have a wide range of applications, and the use effect is also very distinctive. Solid tires made of polyurethane are very wear-resistant and durable, and light in weight. Tire Air Refill. It is applied to small carts, baby carri...

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): C08G18/66C08G18/42C08G18/48C08G18/12C08G63/672C08G63/16C08G63/183C08J9/14C08J9/08B60C1/00C08G101/00
CPCB60C1/00B60C2001/0091C08G18/12C08G18/4202C08G18/4213C08G18/425C08G63/16C08G63/183C08G63/672C08J9/144C08J2203/142C08J2375/06C08J2375/08C08G2110/005C08G2110/0083C08G18/664
Inventor 沈建峰徐欣欣沈连根石磊纪尚超李寿伟陈海龙
Owner JIAXING HEXIN CHEM IND
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com