Carrier sponge for medical framework accessory and preparation method thereof

A technology of accessories and carriers, which is applied in the sponge field, can solve problems such as hardness and compressive strength, and coarse-pore structure requirements, etc., and achieve the effect of good compressive strength and high hardness

Inactive Publication Date: 2011-05-25
东莞市源聚德实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cells of the rigid foam are fine and dense, which cannot meet the requirements for the coarse-pore structure of the carrier for medical skeleton accessories, and the hardness and compressive strength cannot meet the requirements of the carrier for medical skeleton accessories.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Mix 0.5g of silicone oil, 0.1g of triethylenediamine, and 2g of water, and stir evenly at a stirring speed of 250 rpm; add 10g of polyether polyol with a hydroxyl value of 200mgKOH / g and 70g of a polymer with a hydroxyl value of 20mgKOH / g Polyhydric alcohol, stir well with the stirring speed of 250 revs / min; Then add 0.1g stannous octoate, stir evenly with the stirring speed of 250 revs / min; Finally add 30g isocyanate index and be 90 tolylene diisocyanate, with 250 revs / min After min stirring evenly, it is poured into a mold for curing at room temperature to obtain a carrier sponge for medical skeleton accessories.

[0043] After testing, the apparent density of this embodiment is 90kg / m 3 , The compressive strength is 0.4MPa.

Embodiment 2

[0045] Mix 0.6g of silicone oil, 0.15g of triethylenediamine, and 3g of water, and stir evenly at a stirring speed of 300 rpm; add 15g of polyether polyol with a hydroxyl value of 450mgKOH / g and 80g of a polymer with a hydroxyl value of 30mgKOH / g Polyhydric alcohol, stir well with the stirring speed of 300 rev / min; Then add 0.2g stannous octoate, stir evenly with the stirring speed of 300 rev / min; Finally add 40g isocyanate index and be 110 toluene diisocyanate, with 300 rev / min After min stirring evenly, it is poured into a mold for curing at room temperature to obtain a carrier sponge for medical skeleton accessories.

[0046] After testing, the apparent density of this embodiment is 92kg / m 3 , The compressive strength is 0.5MPa.

Embodiment 3

[0048] Mix 0.7g of silicone oil, 0.21g of triethylenediamine, and 2.4g of water, and stir evenly at a stirring speed of 320 rpm; add 13.6g of polyether polyol with a hydroxyl value of 350mgKOH / g and 90g of Polymer polyol, stirs with the stirring speed of 320 revs / min; Then add 0.16g stannous octoate, stirs with the stirring speed of 320 revs / min; Finally add the tolylene diisocyanate that 37.52g isocyanate index is 100, with After stirring at 320 rpm, it is poured into a mold for curing at room temperature to obtain a carrier sponge for medical skeleton accessories.

[0049] After testing, the apparent density of this embodiment is 95kg / m 3 , The compressive strength is 0.6MPa.

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Abstract

The invention belongs to the technical field of sponge, in particular to carrier sponge for a medical framework accessory and a preparation method thereof. The method comprises the following steps: mixing and uniformly stirring 0.5 to 1 part of silicon oil, 0.1 to 0.3 part of triethylene diamine and 2 to 4 parts of water; adding 10 to 20 parts of polyether polyol and 70 to 100 parts of polymer polyol to be uniformly stirred; then, adding 0.1 to 0.3 part of stannous octoate to be uniformly stirred; and finally, adding 30 to 50 parts of toluene di-isocyanate to be uniformly stirred, and pouring the mixture into a mold to be cured at a room temperature for obtaining the carrier sponge for the medical framework accessory. The carrier sponge provided by the invention has the advantages of high hardness and better pressure resistance intensity, has a coarse hole structure and can be used as a carrier for the medical framework accessory.

Description

technical field [0001] The invention belongs to the technical field of sponges, and in particular relates to a carrier sponge for medical skeleton accessories and a preparation method thereof. Background technique [0002] Polyurethane is a high polymer with unique processing properties produced by the reaction of polyisocyanate and polyol. Because of its excellent performance, it is widely used in automobile manufacturing, civil engineering, petrochemical, electromechanical, shipbuilding, medical treatment, agriculture and other departments. Polyurethane foam materials can be divided into soft polyurethane foam materials and rigid polyurethane foam materials according to their hardness. Due to their advantages in hardness, polyurethane rigid foam materials are widely used in all aspects of life. [0003] For example, the Chinese invention patent with application number 200610022684.0 relates to a rigid polyurethane foam made of a third-generation foaming agent, which uses c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/66A61L27/18A61L27/50
Inventor 卫建东
Owner 东莞市源聚德实业有限公司
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