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Composite material for elevator guide rail filling and its preparation method and application

A technology of elevator guide rails and polyether polyols, applied in the field of polyurethane, which can solve the problems of low noise, high noise of hard polyurethane foam, and easy deformation

Active Publication Date: 2022-07-01
JIANGSU CHANGNENG ENERGY SAVING NEW MATERIALS SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] One of the technical problems to be solved by the present invention is the problem that the hard polyurethane foam prepared by ordinary elevator guide rail filling composite material in the prior art is noisy during use and easy to deform after long-term use. A composite material for elevator guide rail filling is provided. , the composite material has the advantages of low noise and not easy to deform after being used for elevator guide rail filling

Method used

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  • Composite material for elevator guide rail filling and its preparation method and application
  • Composite material for elevator guide rail filling and its preparation method and application
  • Composite material for elevator guide rail filling and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 1) Preparation of component A: 100kg

[0030] Weigh respectively polyether polyol I: NJ-6305C, 17kg; polyether polyol II: CHE-210, 14.3kg; melamine polyol: EDS-5083M, 28kg; polyester polyol: PS-3152, 30kg; Non-hydrolyzed silicon-carbon surfactant: B-8545, 0.5kg; catalyst: mixed catalyst composed of 0.2kg N,N-dimethylcyclohexylamine and 0.05kg dibutyltin dilaurate; physical foaming agent: HCFC -141b, 5kg; Water: 0.45kg; Cell Opener: GrandTech TM K340, 3 kg; antioxidant: IRGANOX 245, 1 kg; dispersant: Gen0451, 0.5 kg.

[0031] 2) Put the weighed polyether polyol I, melamine polyol, polyether polyol II, polyester polyol, foam stabilizer, catalyst, physical foaming agent, water, cell opener, antioxidant, The dispersant was added to the reaction kettle in turn, stirred at room temperature for 1.5 hours, and thoroughly mixed;

[0032] 3) Weighing component B: 110kg; component B is PM-200 specifically;

[0033] 4) Mix component A and component B according to the weight ra...

Embodiment 2～10

[0035] Examples 2 to 10 were carried out according to the steps in Example 1, except that the reaction raw materials, raw material ratios, and stirring time were different, as shown in Table 2 for details; 4 shown.

[0036] Weight (kg) of raw materials of each component in Table 2 Examples 1-10

[0037]

[0038]

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Abstract

The invention relates to a composite material for elevator guide rail filling, a preparation method and application thereof, and mainly solves the problems of high noise in use and easy deformation after long-term use of polyurethane rigid foam prepared from ordinary elevator guide rail filling composite materials in the prior art. The present invention adopts a composite material for elevator guide rail filling, which is composed of component A and component B, and component A and component B are 1:1-1.5 in weight percentage; wherein component A includes polyether polyol I. It is composed of melamine polyol, polyether polyol II, polyester polyol, foam stabilizer, catalyst, physical foaming agent, water and auxiliary agent, wherein the auxiliary agent is selected from cell opener, antioxidant or dispersant At least one of the component B is polymethyl polyphenyl polyisocyanate and the technical solution of the preparation method solves the above problems well, and can be used in the industrial application of elevator guide rails.

Description

technical field [0001] The invention belongs to the field of polyurethane, and particularly relates to a composite material for elevator guide rail filling and a preparation method and application thereof. Background technique [0002] Buildings in today's society are developing towards high-rise buildings, elevators are used more and more, and the requirements for elevator safety and comfort are getting higher and higher. The elevator guide rail is a very important part of the elevator, which involves the safety and comfort of the elevator. Ordinary elevator guide rails will generate large noise when the elevator is running, which affects the comfort of the elevator; at the same time, the elevator guide rails are subject to the pressure of the car for a long time, which is easy to deform and affect the safety of the elevator. When the ordinary elevator guide rail is damaged, the entire guide rail needs to be replaced, which wastes a lot of resources and increases the produ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/42C08G18/48C08G18/50C08K5/134C08J9/14C08L75/06C08L75/08
CPCC08G18/4018C08G18/42C08G18/482C08G18/5063C08K5/1345C08J9/144C08J2375/06C08J2375/08C08J2203/142C08J2205/10
Inventor 施剑峰赵立丁宇孙江
Owner JIANGSU CHANGNENG ENERGY SAVING NEW MATERIALS SCI & TECH