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Raw material combination combined by polyether and polyurethane reinforcement materials and preparing method thereof

A technology of combining polyether and polyether polyol, which is applied in the field of raw material composition and preparation of combined polyether and polyurethane reinforcement materials, can solve problems such as health threats to operators, volatile solvents, environmental pollution, etc., and reduce safety accidents The effect of probability of occurrence, easy availability of raw materials, and high safety factor

Active Publication Date: 2015-04-01
SHANGHAI DONGDA CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to overcome the defects that the polyurethane reinforcement materials in the prior art need to add solvents, the solvents are easy to volatilize during use, cause environmental pollution and pose a threat to the health of operators, and provide a combined polyurethane Raw material composition and preparation method of ether and polyurethane reinforcing material

Method used

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  • Raw material combination combined by polyether and polyurethane reinforcement materials and preparing method thereof
  • Raw material combination combined by polyether and polyurethane reinforcement materials and preparing method thereof
  • Raw material combination combined by polyether and polyurethane reinforcement materials and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Prepare Part A according to the ingredients in the table below

[0053]

[0054] Pour the raw materials mentioned in the above table into the container according to the specified ratio, and mix them evenly with an electric mixer to make component A; then pour component A and component B into the container according to the weight ratio of 1:1, and then Use an electric stirrer to stir for 8 seconds, and test the reaction index and physical properties.

[0055] Part of the mechanical performance test reference standard is as follows (embodiments 1 to 5 and comparative examples are the same):

[0056] Free cell density: refer to "GB / T 6343-2009 Determination of Apparent Density of Foamed Plastics and Rubber"

[0057] Compressive Strength: Refer to GB / T 8813-2008 Determination of Compressive Properties of Rigid Foamed Plastics"

[0058] Bond strength: refer to the method in Appendix A of "GB / T 26689-2011 Rigid Polyurethane Foam for Refrigerators and Freezers"

[0059] ...

Embodiment 2

[0063] Prepare Part A according to the ingredients in the table below

[0064] NJ204

[0065] Pour the raw materials mentioned in the above table into the container according to the specified ratio, and mix them evenly with an electric mixer to make component A; then pour component A and component B into the container according to the weight ratio of 1:1, and then Use an electric stirrer to stir for 8 seconds, and test the reaction index and physical properties.

Embodiment 3

[0067] Prepare Part A according to the ingredients in the table below

[0068]

[0069] Pour the raw materials mentioned in the above table into the container according to the specified ratio, and mix them evenly with an electric mixer to make component A; then pour component A and component B into the container according to the weight ratio of 1:1, and then Use an electric stirrer to stir for 8 seconds, and test the reaction index and physical properties.

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Abstract

The invention discloses a combination polyether which comprises, by weight, the components of 60-90 parts of polyether polyol A, 10-40 parts of polyether polyol B, 7-12 parts of cross-linking agents, 0.3-1.0 part of amine catalyst, 0.1-0.3 part of metal catalyst, 20-40 parts of flame retardant agents and 1.5-2.5 parts of antistatic agents. The polyurethane reinforcement materials have solvent-free performance and non-volatilization performance, raw materials are easy to obtain, raw material price is low, flame retardant effect is good, antistatic effect is good, a danger coefficient is small during using in underground, safety and innocuity are achieved on an operator and an environment, and the combination is suitable for industrialization large-scale production. The preparing method of the polyurethane reinforcement materials is easy to operate, and three wastes are low. When the polyurethane reinforcement materials are used in the field of mining reinforcement, operation is easy, using is convenient, flexibility is high, a security coefficient is high, and safety and innocuity are achieved on the operator and the environment.

Description

technical field [0001] The invention specifically relates to a raw material composition and a preparation method for combining polyether and polyurethane reinforcement materials. Background technique [0002] Polyurethane material has excellent mechanical properties, anti-corrosion, wear-resistant and bonding properties. It is an excellent thermal insulation material and structural load-bearing material. It is widely used in household appliances, building materials, petrochemicals, transportation, etc. In 1982, my country began to use polyurethane materials for mine reinforcement. Before that, commonly used coal and rock mass reinforcement mainly included epoxy resins, acrylamides, acrylates, and urea-formaldehyde resins. Among them, the epoxy resin-based reinforcing agent has a stiff slurry and insufficient flexibility; the acrylamide-based reinforcing agent is expensive, has low compressive strength, poor durability, is corrosive, and the slurry is toxic and will cause env...

Claims

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Application Information

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IPC IPC(8): C08G18/66C08G18/48C08G18/76
CPCC08G18/3206C08G18/4812C08G18/6677C08K5/19C08K5/521C08K5/55
Inventor 于楠李心强王青林裴永忠
Owner SHANGHAI DONGDA CHEM
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