Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method of polyurethane material for PU wheels

A technology of polyurethane materials and raw materials, applied in the field of polyurethane, can solve the problems that the mechanical properties are difficult to meet the requirements, the strength is insufficient, the valence bond is insufficient, and the effect of good mechanical strength and other mechanical properties can be achieved.

Pending Publication Date: 2021-06-15
荣雷
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Most of the commonly used polyurethane materials are polyether polyurethanes, and their molecular chains have greater flexibility. However, due to the insufficient force of their secondary bonds, commonly used polyether polyurethanes generally have insufficient strength and mechanical properties that are difficult to meet the needs.

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

Embodiment 1

[0033] A kind of preparation method of polyurethane material for PU wheel of the present embodiment is characterized in that, raw material comprises the following components by weight:

[0034] 42 parts of toluene diisocyanate;

[0035] 35 parts of polyol;

[0036] 75 parts of polypropylene oxide ether polyols;

[0037] 16 parts of organic zinc;

[0038] 7 parts of organic zirconium;

[0039] The method comprises the steps of:

[0040] Step 1, after mixing toluene diisocyanate, polyol, polypropylene oxide ether polyol, organic zinc and organic zirconium, place it in the reactor;

[0041] Step 2, set the temperature of the reactor to 100°C, and heat the system in the reactor for 80 seconds;

[0042] Step 3. Stop heating and let stand for 3 hours;

[0043] Step 4, taking out and molding to obtain the polyurethane material for PU wheels.

Embodiment 2

[0045] A kind of preparation method of polyurethane material for PU wheel of the present embodiment is characterized in that, raw material comprises the following components by weight:

[0046] 40 parts of toluene diisocyanate;

[0047] 30 parts of polyol;

[0048] 70 parts of polypropylene oxide ether polyols;

[0049] 12 parts of organic zinc;

[0050] 8 parts of organic zirconium;

[0051] The method comprises the steps of:

[0052] Step 1, after mixing toluene diisocyanate, polyol, polypropylene oxide ether polyol, organic zinc and organic zirconium, place it in the reactor;

[0053] Step 2, set the temperature of the reactor to 50°C, and heat the system in the reactor for 90 seconds;

[0054] Step 3. Stop heating and let stand for 2 hours;

[0055] Step 4, taking out and molding to obtain the polyurethane material for PU wheels.

Embodiment 3

[0057] A kind of preparation method of polyurethane material for PU wheel of the present embodiment is characterized in that, raw material comprises the following components by weight:

[0058] 45 parts of toluene diisocyanate;

[0059] 40 parts of polyol;

[0060] 80 parts of polypropylene oxide ether polyols;

[0061] 18 parts of organic zinc;

[0062] 6 parts of organic zirconium;

[0063] The method comprises the steps of:

[0064] Step 1, after mixing toluene diisocyanate, polyol, polypropylene oxide ether polyol, organic zinc and organic zirconium, place it in the reactor;

[0065] Step 2: Set the temperature of the reactor to 150°C, and heat the system in the reactor for 50 seconds;

[0066] Step 3, stop heating and let it stand for 4 hours;

[0067] Step 4, taking out and molding to obtain the polyurethane material for PU wheels.

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 preparation method of a polyurethane material for PU wheels. The method comprises the following steps: 1, mixing toluene diisocynate, polyol, polypropylene oxide ether polyol, organic zinc and organic zirconium, and placing the mixture in a reactor; 2, setting the temperature of the reactor to be 50-150 DEG C, and heating the system in the reactor for 50-90 seconds; 3, stopping heating, and standing for 2-4 h; and 4, taking out, and molding to obtain the polyurethane material for PU wheels. According to the method disclosed by the invention, organic zinc and organic zirconium are added into the raw materials, premixing is performed in a blending and short-time heating manner, and the obtained polyurethane material has good mechanical strength and other mechanical properties and can meet the use requirements of PU wheels.

Description

technical field [0001] The invention belongs to the technical field of polyurethane, and in particular relates to a preparation method of a polyurethane material for PU wheels. Background technique [0002] PU wheels, that is, polyurethane wheels, are mostly used on skates, roller skates and other items. According to different formulations, the obtained PU wheels have different hardness, and also have differences in terms of grip and shock absorption ability. [0003] The structure of polyurethane is easy to design, and its preparation and synthesis methods are relatively simple. The synthesis of polyurethane has developed rapidly, and it has developed rapidly in the fields of foam plastics, rubber, coatings, and adhesives. [0004] The currently commonly used polyurethane materials are mostly polyether polyurethanes, whose molecular chains have greater flexibility. However, due to the insufficient force of the secondary bonds, the commonly used polyether polyurethanes gene...

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): C08G18/76C08G18/48C08K5/56
CPCC08G18/48C08G18/7614C08K5/56
Inventor 不公告发明人
Owner 荣雷