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Slow rebound sponge and preparation method thereof

The technology of slow rebound sponge and slow rebound polyether is applied in the field of slow rebound sponge and its preparation, which can solve the problem of weak tensile force, hardness, tear strength, etc. The quality of the elastic sponge and other issues can achieve the effect of consolidating stability, unique sound absorption performance, and good resilience performance.

Inactive Publication Date: 2013-09-04
KUNSHAN ZHONGHAI IND & TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing slow rebound sponges are relatively fragile, and their properties such as tensile force, hardness, and tear strength are relatively weak, and they are easily broken in use, which affects the quality of articles made of slow rebound sponges and relatively reduces The service life of slow rebound sponge products

Method used

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  • Slow rebound sponge and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] The slow rebound sponge in this example is prepared from the following raw materials according to the weight ratio: 50 parts of ordinary polyether; 50 parts of ordinary polyether hardening agent; 10 parts of slow rebound polyether; 90 parts of slow rebound polyether 8 parts of melamine; 30 parts of toluene diisocyanate; 3 parts of methylene chloride; 2.5 parts of water; 0.2 parts of the first catalyst; 0.2 parts of the second catalyst; 0.01 parts of foam stabilizer;

Embodiment 2

[0047] The slow rebound sponge in this example is prepared from the following raw materials according to the weight ratio: 80 parts of ordinary polyether; 20 parts of ordinary polyether hardening agent; 50 parts of slow rebound polyether; 50 parts of slow rebound polyether 30 parts of melamine; 60 parts of toluene diisocyanate; 10 parts of dichloromethane; 6 parts of water; 0.8 parts of the first catalyst; 0.6 parts of the second catalyst; 0.5 parts of foam stabilizer; 1.5 parts of dyeing agent.

Embodiment 3

[0049] The slow rebound sponge in this example is prepared from the following raw materials according to the weight ratio: 25 parts of ordinary polyether; 75 parts of ordinary polyether hardening agent; 25 parts of slow rebound polyether; 75 parts of slow rebound polyether 20 parts of melamine; 65 parts of toluene diisocyanate; 6.5 parts of methylene chloride; 4 parts of water; 0.5 parts of the first catalyst; 0.4 parts of the second catalyst; 0.3 parts of diethanolamine; 0.2 parts of foam stabilizer;

[0050] The embodiment of the present invention also provides the production process and process of the slow rebound sponge.

[0051] In the embodiment of the present invention, a one-step box-type foaming method is adopted in the production of sponge, and various raw materials are quickly added to the forming box under high-speed stirring, and reactions such as chain growth, foaming, crosslinking, and curing are completed in the forming box. Thereby completing the sponge produc...

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Abstract

The invention discloses a slow rebound sponge which is composed of the following raw materials by weight: 50-100 parts of a common polyether, 50-100 parts of a common polyether hardening agent, 10-50 parts of a slow rebound polyether, 50-100 parts of a slow rebound polyether, 8-30 parts of melamine, 30-60 parts of toluene diisocyanate, 3-10 parts of dichloromethane, 2.5-6 parts of water, 0.2-0.8 part of a first catalyst, 0.2-0.6 part of a second catalyst, 0.01-0.5 part of a foam stabilizer and 0.5-1.5 parts of a coloring agent. The slow rebound sponge disclosed by the invention not only has the characteristics of slow rebound elasticity, high tension and the like but also has the advantages of simple production process, flame retardancy, safety, environmental protection, etc.

Description

technical field [0001] The invention relates to the technical field of polymer materials, and in particular to a slow rebound sponge and a preparation method thereof. Background technique [0002] Sponge is a kind of polyurethane foam, which belongs to soft polyurethane foam. Because of the porous honeycomb structure, it has excellent softness, elasticity, water absorption, and water resistance, and is widely used in various industries such as sofas, mattresses, clothing, and flexible packaging. [0003] As one of the sponge family, the slow rebound sponge is widely used. The scientific name of the slow rebound sponge is inert elastic sponge, and the English name is Memory Foam. Its main component is polyurethane foam plastic. It contains temperature-sensitive particles, has viscoelasticity, can be shaped according to body temperature and pressure, effectively dissolves the pressure of the human body into zero pressure, offsets the reaction force, provides the most uniform ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/66C08G18/48C08G18/32C08L75/08C08G101/00
Inventor 褚金弟蒋建初
Owner KUNSHAN ZHONGHAI IND & TRADE
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