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Bio-based polyhydric alcohol sponge and preparing method

An alcohol sponge, bio-based technology, applied in the sponge field, can solve the problems of insufficient support force and softness of the sponge, and achieve the effect of optimal support force and softness

Inactive Publication Date: 2019-07-12
东莞市腾崴塑胶制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a bio-based polyol sponge and its preparation method to solve the defects of insufficient sponge supporting force and softness in the related art.

Method used

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  • Bio-based polyhydric alcohol sponge and preparing method
  • Bio-based polyhydric alcohol sponge and preparing method

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Effect test

Embodiment 1

[0021] A bio-based polyol sponge, the sponge is produced by reacting raw materials consisting of the following components in parts by weight: 20 parts of vegetable oil polyether polyol, 30 parts of POP polymer polyol, 50 parts of hydrophilic polyether, 1.5 parts of silicone oil 0.3 parts of amine catalyst, 0.15 parts of tin catalyst, 27.7 parts of isocyanate TDI80 and polymeric MDI mixture, 2.8 parts of water; wherein, the original density of raw materials is 35kg / m 3 , the foam index of the sponge is 0.8; the vegetable oil polyether polyol is a mixture of three kinds of palm oil, castor oil and soybean oil as an initiator, KOH is a catalyst, and reacts with propylene oxide polymer, and the vegetable oil The hydroxyl value of polyether polyol is 120mgKOH / g; the POP polymer polyol is a polyether polyol with high solid content graft-copolymerized by general-purpose polyether, styrene monomer and acrylonitrile monomer, and the POP polymer polyol is The polyol has a solid content ...

Embodiment 2

[0027]A bio-based polyol sponge, the sponge is produced by reacting raw materials consisting of the following components in parts by weight: 15 parts of vegetable oil polyether polyol, 30 parts of POP polymer polyol, 55 parts of hydrophilic polyether, 1.5 parts of silicone oil 0.3 parts of amine catalyst, 0.1 part of tin catalyst, 42.9 parts of isocyanate TDI80 and polymeric MDI mixture, 4 parts of water; wherein, the original density of the raw material is 25kg / m3, and the foaming index of the sponge is 0.92; Alcohol is a mixture of three kinds of palm oil, castor oil and soybean oil as an initiator, KOH as a catalyst, and a polymer reacted with propylene oxide, and the hydroxyl value of the vegetable oil polyether polyol is 56mgKOH / g; the POP Polymer polyol is a polyether polyol with high solid content graft-copolymerized by general-purpose polyether, styrene monomer and acrylonitrile monomer. The POP polymer polyol has a solid content of 45% and a hydroxyl value of 28 mgKOH / ...

Embodiment 3

[0030] A bio-based polyol sponge, the sponge is produced by reacting raw materials consisting of the following components in parts by weight: 15 parts of vegetable oil polyether polyol, 30 parts of POP polymer polyol, 55 parts of hydrophilic polyether, 1.5 parts of silicone oil 0.3 parts of amine catalyst, 0.05 parts of tin catalyst, 19.9 parts of isocyanate TDI80 and polymeric MDI mixture, 1.2 parts of water; wherein, the original density of the raw material is 80kg / m 3 , the foam index of the sponge is 1.1; the vegetable oil polyether polyol is a mixture of three kinds of palm oil, castor oil and soybean oil as an initiator, KOH is a catalyst, and reacts with propylene oxide polymer, and the vegetable oil The hydroxyl value of polyether polyol is 120mgKOH / g; the POP polymer polyol is a polyether polyol with high solid content graft-copolymerized by general-purpose polyether, styrene monomer and acrylonitrile monomer, and the POP polymer polyol is The solid content of polyol ...

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Abstract

The invention discloses a bio-based polyhydric alcohol sponge and a preparing method. The sponge is prepared through reaction from, by weight, 15-30 parts of vegetable oil polyether polyol, 20-30 parts of polypolyols (POP), 40-55 parts of hydrophilic polyether, 1-2 parts of silicone oil, 0.1-0.3 part of an amine catalyst, 0.05-0.15 part of a tin catalyst, 19.9-42.9 parts of an isocyanate TDI80 polymerized MDI mixture and 1.2-4 parts of a foaming agent, wherein the original density of the raw materials is 25-80 kg / m<3>, and the foaming index of the sponge is 0.8-1.1. The bio-based polyhydric alcohol sponge prepared from the components according to the ratio through the preparing method has extremely excellent supporting force and softness.

Description

technical field [0001] The invention relates to the technical field of sponges, in particular to a bio-based polyol sponge and a preparation method thereof. Background technique [0002] Sponge is very common in daily life applications, for example, there are a lot of sponges in sofas, chairs, mattresses and shoes. Because it gives people a soft and comfortable experience, it is widely used in different fields. Commonly used sponges are made from wood cellulose fibers or expanded plastic polymers. In addition, there are natural sponges made from spongy animals, and there are three types of synthetic sponges made of other materials, namely low-density polyether (non-absorbent sponge), polyvinyl alcohol (highly absorbent material, no obvious pores) and polyester. sponge. In the existing technology, the sponges in mattresses and pillows are often filled with soft sponges, but the disadvantages of the existing sponges used for filling are that few of the existing sponges use ...

Claims

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Application Information

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IPC IPC(8): C08G18/40C08G18/48C08G18/63C08J9/08C08G101/00
CPCC08G18/4072C08G18/4804C08G18/4837C08G18/4891C08G18/632C08G2110/0083
Inventor 丁向前
Owner 东莞市腾崴塑胶制品有限公司
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