Polyurethane combined material for furniture sponge and preparation method thereof

A technology of polyurethane composite material and sponge, applied in the field of polyurethane, can solve the problems of high density, increased cost of molded foam, unsatisfactory bearing capacity, etc., and achieves the effects of good bearing capacity, fast response speed and good elasticity

Inactive Publication Date: 2015-12-09
SHANDONG INOV POLYURETHANE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For a long time, polyurethane foam for furniture has been made by hot foam cutting with TDI as the isocyanate component. Although the foam has excellent hand feeling and good resilience, it cannot meet the requirements in terms of load-carrying capacity, and it is necessary to design a metal foam under the sponge. spring to provide load bearing
Although polyurethane molded foam can provide excellent bearing capacity, its high density greatly increases the cost of molded foam, especially the molded foam with environmentally friend

Method used

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  • Polyurethane combined material for furniture sponge and preparation method thereof
  • Polyurethane combined material for furniture sponge and preparation method thereof
  • Polyurethane combined material for furniture sponge and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Component A is made of the following raw materials in parts by mass:

[0032]

[0033] Component B is made from the following raw materials in parts by mass:

[0034]

[0035]

[0036] Component A: Put the weighed FA-703 and FA3630 into the reaction kettle and stir, then add the weighed GK350D, DEOA, MP601, MP602, AK7703, H 2 O, after stirring and mixing at room temperature for 1 hour, the qualified product of component A is obtained.

[0037] Component B: Add FA703 and GK350D to the reaction kettle at room temperature, stir and heat up to 95°C, vacuum dehydration and degassing for 2.5 hours, when the temperature drops to 30°C, add MDI-50, react for 2.5 hours when the temperature rises to 82°C, and measure NCO% After the content reaches the set value (28.1±0.3)%, add crude MDI, stir and cool down to below 40°C.

[0038] When in use, mix components A and B according to the weight ratio of A:B=100:90 and inject them into the mold to obtain high-load-bearing low...

Embodiment 2

[0040] Component A is made of the following raw materials in parts by mass:

[0041]

[0042] Component B is made from the following raw materials in parts by mass:

[0043]

[0044] Component A: Put the weighed KE810 and FA3630 into the reaction kettle and stir, then add the weighed GK350D, DEOA, EF600, EF700, AK7703, H 2 O, after stirring and mixing at room temperature for 1 hour, the qualified product of component A is obtained.

[0045] Component B: Add FA703 and GK350D to the reaction kettle at room temperature, stir and heat up to 100°C, dehydrate and degas under vacuum for 2 hours, when the temperature drops to 30°C, add pure MDI, heat up to 85°C and react for 2 hours, and the detection reaches the set point After determining the NCO% content (23.3±0.3)%, add crude MDI, stir and cool down to below 40°C.

[0046] When in use, the components A and B are mixed according to the weight ratio of A:B=100:90 and injected into the mold to obtain a polyurethane foam toy. ...

Embodiment 3

[0048] Component A is made of the following raw materials in parts by mass:

[0049] Using glycerol as the initiator, the primary hydroxyl content is 75%, the number average molecular weight is 6000, and the polyoxypropylene trihydric alcohol capped with ethylene oxide: 55

[0050] Polyether based on vinyl polyether triol, grafted and copolymerized with styrene or acrylonitrile, polymer polyol with a solid content of 30%: 35

[0051]

[0052] Component B is made from the following raw materials in parts by mass:

[0053] Using glycerol as the initiator, the primary hydroxyl content is 75%, the number average molecular weight is 6000, and the polyoxypropylene trihydric alcohol capped with ethylene oxide: 15

[0054]

[0055] Component A: Put the KE810 and KE2045 based on the formula into the reaction kettle and stir, then add the weighed GK350D, DEOA, DEG, MP601, MP602, AK7703, H 2 O, after stirring and mixing at room temperature for 1 hour, the qualified product of com...

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PUM

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Abstract

The invention belongs to the field of polyurethane, and concretely relates to a polyurethane combined material for furniture sponge and a preparation method thereof. The combined material is prepared by mixing a composition A and a composition B, the composition A is prepared from polyether polyol, polymer polyol, a cross-linking agent, a foaming agent, a foam stabilizer , a pore-opening agent and a catalyst, and the composition B is prepared from polyether polyol, an isocyanate and a pore-opening agent. When the combined material is used, the composition A and the composition B are mixed according to the weight ratio of 100:75-110 and injected into a die, so that high-bearing low-density furniture sponge is prepared. The combined material employs low-volatilization low-atomization raw materials, and possesses advantages of low smell, good fluidity, wide applicable temperature scope and the like. The furniture sponge prepared from the combined material possesses the advantages of being basically odorless, safe, nontoxic, free of defects on the surface, good in elasticity, excellent in handfeel, low in density, good in bearing property and the like. The invention also provides a preparation method for the combined material, and the technology is reasonable.

Description

technical field [0001] The invention belongs to the field of polyurethane, and in particular relates to a polyurethane composite material for furniture sponges and a preparation method thereof. Background technique [0002] Since the reform and opening up, the furniture industry has developed rapidly, and the types of materials have also continued to increase. Among them, furniture with polyurethane foam as seat cushions and backrests has won people's love for its excellent feel and good resilience. For a long time, polyurethane foam for furniture has been made by hot foam cutting with TDI as the isocyanate component. Although the foam has excellent hand feeling and good resilience, it cannot meet the requirements in terms of load-carrying capacity, and it is necessary to design a metal foam under the sponge. Springs provide load bearing. Although polyurethane molded foam can provide excellent bearing capacity, its high density greatly increases the cost of molded foam, esp...

Claims

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Application Information

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IPC IPC(8): C08L75/08C08L75/04C08J9/08C08G18/66C08G18/48C08G18/63C08G101/00
CPCC08G18/48C08G18/63C08G18/66C08J9/08C08L75/04C08L75/08
Inventor 徐军孙清峰殷玉鹏牛富刚郭勇生代金辉
Owner SHANDONG INOV POLYURETHANE
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