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PU (polyurethane) latex flexible foam for bed mattress and preparation method of PU latex flexible foam

A flexible foam and polyurethane technology, applied in the field of polyurethane materials, can solve problems such as a large number of smoke and toxic gases, life and public safety hazards, and achieve the effects of low VOC content, reduced surface tension, and increased compatibility

Active Publication Date: 2019-07-23
山东恒富家居科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, because polyurethane foam materials contain combustible hydrocarbon segments, especially polyurethane latex flexible foam, they are particularly easy to burn, and produce a lot of smoke and toxic gases during combustion, which brings great harm to people's lives and public safety. harm

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The invention provides a polyurethane latex flexible foam for mattresses, which is prepared from the following raw materials in parts by weight:

[0036] 70 parts of glycerol-propylene oxide-ethylene oxide copolymer;

[0037] 15 parts of polymer polyether polyol;

[0038] 2.1 parts of deionized water;

[0039] 0.2 parts of simethicone oil;

[0040] 0.7 parts of neopentyl glycol;

[0041] 0.3 parts of carbonamide;

[0042] 32 parts of diphenylmethane diisocyanate.

[0043] A method for preparing the polyurethane latex flexible foam for above-mentioned mattresses, the method may further comprise the steps:

[0044] (1) After mixing 26.8kg of glycerin and 268g of trimethylamine evenly, put them into a stainless steel reaction kettle, vacuumize and fill the kettle with nitrogen for three consecutive times to remove the air in the kettle, then add 25.35kg of propylene oxide into the kettle, and turn on the mechanical stirring , and gradually raised the temperature to 1...

Embodiment 2

[0048] The invention provides a polyurethane latex flexible foam for mattresses, which is prepared from the following raw materials in parts by weight:

[0049] 80 parts of glycerol-propylene oxide-ethylene oxide copolymer;

[0050] 25 parts of polymer polyether polyol;

[0051] 3.5 parts of deionized water;

[0052] 0.3 part of simethicone oil;

[0053] 1.2 parts of neopentyl glycol;

[0054] Carbonamide 0.4 part;

[0055] 38 parts of diphenylmethane diisocyanate.

[0056] A method for preparing the polyurethane latex flexible foam for above-mentioned mattresses, the method may further comprise the steps:

[0057] (1) After mixing 26.8kg of glycerin and 345g of trimethylamine evenly, put them into a stainless steel reaction kettle, vacuumize and fill the kettle with nitrogen for three consecutive times to remove the air in the kettle, then add 28.88kg of propylene oxide into the kettle, and turn on the mechanical stirring , and gradually raised the temperature to 105°C ...

Embodiment 3

[0061] The invention provides a polyurethane latex flexible foam for mattresses, which is prepared from the following raw materials in parts by weight:

[0062] 85 parts of glycerol-propylene oxide-ethylene oxide copolymer;

[0063] 30 parts of polymer polyether polyol;

[0064] 4.5 parts of deionized water;

[0065] 0.6 part of simethicone oil;

[0066] 2.5 parts of neopentyl glycol;

[0067] Carbonamide 0.5 part;

[0068] 45 parts of diphenylmethane diisocyanate.

[0069] A method for preparing the polyurethane latex flexible foam for above-mentioned mattresses, the method may further comprise the steps:

[0070] (1) After mixing 26.8kg of glycerin and 536g of trimethylamine evenly, put them into a stainless steel reaction kettle, vacuumize and fill the kettle with nitrogen for three consecutive times to remove the air in the kettle, then add 33.80kg of propylene oxide into the kettle, and turn on the mechanical stirring , and gradually raised the temperature to 110°C ...

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Abstract

The invention relates to PU (polyurethane) latex flexible foam for bed mattress and a preparation method of the PU latex flexible foam and belongs to the field of PU materials. According to a production process of the PU latex flexible foam, polyether glycol, polyols and diphenylmethane diisocyanate are taken as main raw materials, water is taken as a foaming agent, no toxic compounds such as TDI(toluene diisocynate), an organic tin catalyst and MC (methylene chloride) are used in the preparation process, the preparation process and the use process are safe and environmentally friendly, and the VOC content is low. The used polyether glycol is prepared from glycerin, epoxypropane, formaldehyde and dicyandiamide and is amino-containing polyols with flame retardance. Deionized water is takenas an opening agent and matched with a dimethyl silicone oil stabilizer for use, the compatibility of all components is effectively increased, the system surface tension is reduced, and the product pore distribution is uniform. According to the preparation method of the PU latex flexible foam, used raw materials are easy to obtain, the process is simple and convenient to operate, the preparationmethod is suitable for large-scale production, and the PU latex flexible foam is widely applied to decoration and protection fields of household appliances, automobiles and the like.

Description

technical field [0001] The invention relates to a polyurethane foam material and a preparation method thereof, in particular to a polyurethane latex flexible foam for mattresses and a preparation method thereof, belonging to the field of polyurethane materials. Background technique [0002] Polyurethane latex flexible foam usually refers to soft polyurethane foam with certain elasticity. The series of products include block sponge, high resilience foam, self-skinned foam, slow resilience foam, microcellular foam and semi-rigid energy-absorbing foam. Polyurethane latex soft foam has the characteristics of low density, breathability, sound absorption, heat preservation, and good resilience. High-resilience polyurethane foam is mainly used as vehicle seats, furniture pads, various pad laminated composite materials, and also used as sound insulation materials, filter materials, decorative materials, shockproof materials, packaging materials and thermal insulation materials, etc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/76C08G18/66C08G18/48C08G18/50C08G18/32C08G18/18C08G65/28C08G65/333C08G65/331C08G101/00
CPCC08G18/7671C08G18/6674C08G18/482C08G18/4837C08G18/5021C08G18/3206C08G18/1841C08G65/2609C08G65/33368C08G65/331C08G2110/005C08G2110/0083Y02P20/10
Inventor 刘长江
Owner 山东恒富家居科技有限公司
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