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Bio-based polyurethane foam and preparation method thereof

A polyurethane foam, bio-based technology, applied in the field of polyurethane, can solve the problems of complex preparation method of bio-based polyol mixture, poor biodegradability, high product density, low global warming potential, high open porosity, and fast degradation. effect of speed

Active Publication Date: 2021-04-13
SHANDONG INOV NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation method of its bio-based polyol mixture is relatively complicated, and the density of the product is high, the cost of the product is high, and the biodegradability is also poor.

Method used

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  • Bio-based polyurethane foam and preparation method thereof
  • Bio-based polyurethane foam and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) A component: lignin 45%, polycaprolactone (PCL205) 27%, INOVOL R6205 15%, glycerin 5%, foam stabilizer DC6070 1%, surfactant L-580 1%, composite catalyst ( Concentration 33wt% triethylene diammonium, N,N'-dimethylbenzylamine, 2-hydroxy-N,N,N-trimethyl-1-propanamine formate mixed in mass ratio 1:1.5:0.8 )0.7%, H 2 O5.3%.

[0032] According to the above formula, put each component into a stainless steel kettle according to the proportion for mixing, stir at a speed of 120r / min for 0.5h at room temperature, and discharge as component A.

[0033] (2) B component: isophorone diisocyanate (IPDI).

[0034] (3) Mix components A and B at a mass ratio of 1:1.3 at 22°C, stir at a speed of 4000r / min for 8s, place in a square mold of 30cm×30cm×10cm, set the mold temperature at 45°C, After 30 minutes of mold opening, it was cured at room temperature for 72 hours to obtain bio-based polyurethane foam.

Embodiment 2

[0036] (1) A component: lignin 30%, polycaprolactone (PCL205) 20%, INOVOL R6205 15%, glycerin 4.5%, foam stabilizer DC6070 2%, composite catalyst (concentration 33wt% triethylene diammonium, N,N'-dimethylbenzylamine, 2-hydroxy-N,N,N-trimethyl-1-propanamine formate mixed in mass ratio 1:1.5:1) 1.5%, H 2 O 12%, Talc 15%.

[0037] According to the above formula, add each component into the stainless steel kettle according to the proportion for mixing, stir at a speed of 120r / min for 0.5h at room temperature, and discharge the material as component A; since filler (talc powder) is added to component A, the It should be used immediately after the preparation is completed, or the product can be obtained by adding talcum powder according to a certain proportion during production.

[0038] (2) B component: isophorone diisocyanate (IPDI).

[0039] (3) Mix components A and B at a mass ratio of 1:1.3 at 22°C, stir at a speed of 4000r / min for 8s, place in a square mold of 30cm×30cm×10cm...

Embodiment 3

[0041] (1) A component: lignin 30%, polycaprolactone (PCL205) 20%, INOVOL R6205 15%, glycerin 5%, foam stabilizer DC6070 2%, composite catalyst (concentration 33wt% triethylene diammonium, N,N'-dimethylbenzylamine, 2-hydroxy-N,N,N-trimethyl-1-propanamine formate (mixed in mass ratio 1:1.5:0.8) 2%, H 2 O 12%, ground calcium carbonate 15%.

[0042] According to the above formula, add each component into the stainless steel kettle according to the proportion for mixing, stir at a speed of 120r / min for 0.5h at room temperature, and discharge the material as component A; since filler (heavy calcium carbonate) is added to component A, Therefore, it should be used immediately after the preparation is completed, or the product can be obtained by adding heavy calcium carbonate according to a certain proportion during production.

[0043] (2) B component: isophorone diisocyanate (IPDI).

[0044] (3) Mix components A and B according to the mass ratio of 1:1.3 at 22°C, stir at a speed o...

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Abstract

The invention relates to the technical field of polyurethane, in particular to bio-based polyurethane foam and a preparation method thereof. The bio-based polyurethane foam is prepared by mixing a component A and a component B according to a mass ratio of 1:(1.0-1.5). The component A is prepared from the following raw materials in percentage by mass: 30 to 60 percent of lignin, 20 to 30 percent of polycaprolactone, 10 to 20 percent of polyether polyol, 3 to 5 percent of cross-linking agent, 1 to 2 percent of foam stabilizer A, 1 to 2 percent of foam stabilizer B, 0.5 to 10 percent of water, 0.3 to 1.5 percent of catalyst and 0 to 20 percent of filler; and the component B is isophorone diisocyanate. The bio-based polyurethane foam disclosed by the invention has high water absorption, high aperture ratio and good mechanical strength, is applied to the fields of bionic soil, flower arrangement mud and the like, and has biodegradability, and degradation products do not pollute the environment and soil; and the invention also provides a preparation method of the bio-based polyurethane foam.

Description

technical field [0001] The invention relates to the technical field of polyurethane, in particular to a bio-based polyurethane foam and a preparation method thereof. Background technique [0002] Polyurethane foam is easy to shape, easy to process, and easy to get raw materials. The resulting products have excellent mechanical properties, acoustic properties, electrical properties and chemical resistance, and play a pivotal role in national production and construction. [0003] Because polyurethane foam has the characteristics of large pores, uniform bubbles, low density, breathability, temperature resistance, aging resistance, water resistance and solvent erosion resistance, and has water absorption and water retention capabilities, in recent years, polyurethane foam has begun to be used in the field of flower arrangement mud. The flower arrangement mud has a large sales volume in the flower market. It is a new product with development value, which can effectively prolong t...

Claims

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Application Information

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IPC IPC(8): C08G18/66C08G18/64C08G18/42C08G18/48C08G18/32C08K3/26C08K3/34A01G5/06A01G24/30A01G24/35A01G24/48C08G101/00
CPCC08G18/6611C08G18/4081C08G18/6492C08G18/4277C08G18/4829C08G18/3206C08K3/26C08K3/34A01G5/06A01G24/48A01G24/35A01G24/30C08K2003/265
Inventor 杜孝林李欣张佳佳林壮王许
Owner SHANDONG INOV NEW MATERIALS CO LTD
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