An anti-adhesion far-infrared antibacterial low-temperature thermoplastic material and its preparation method

Abstract

The invention discloses an anti-adhesion far-infrared antibacterial low-temperature thermoplastic material and a preparation method thereof. The anti-adhesion far-infrared antibacterial low-temperature thermoplastic material is prepared from the following raw materials in parts by weight: 65 to 85 parts of polycaprolactone, 20 to 30 parts of nano far-infrared ceramic powder, 8 to 16 parts of modified montmorillonite powder, 5 to 15 parts of nano silver antibacterial agent, 5 to 15 parts of modified talcum powder and 8 to 12 parts of dispersion oil. The preparation method of the modified montmorillonite powder comprises the following steps: calcining montmorillonite in a calcining furnace for 4 to 6 hours at the temperature of 450 to 550 DEG C, taking out the montmorillonite, cooling, pickling, filtering, washing, adding a coupling agent and turpentine oil, grinding, sieving by virtue of a 200-mesh to 300-mesh sieve, and drying to obtain the modified montmorillonite powder, wherein the weight of the coupling agent the turpentine oil is respectively 5 to 9 percent and 2 to 4 percent of the weight of the montmorillonite. The anti-adhesion far-infrared antibacterial low-temperature thermoplastic material provided by the invention has an anti-adhesion function, additional anti-adhesion solution is not needed, the production process is simple, no large field is needed, and the anti-adhesion effect is not influenced when the material is repeatedly used.

Description

technical field [0001] The invention belongs to the field of materials and relates to a low-temperature thermoplastic material, in particular to an anti-adhesion far-infrared antibacterial low-temperature thermoplastic material and a preparation method thereof. Background technique [0002] Low-temperature thermoplastic material is a specially synthesized high-molecular polyester, which is a new type of medical material processed by a series of physical and chemical methods. It is used for orthopedic external fixation, orthotics, and braces. Because the material has outstanding properties such as non-absorbing radiation, good shaping effect after heating and softening, and unique shape memory function (when the shaping is not satisfactory, it can be reheated, reshaped or partially heated and reshaped), etc., As well as simple operation and convenient fixation, it is the most ideal external fixation material in radiotherapy positioning at present. However, low-temperature th...

AI Technical Summary

Problems solved by technology

However, low-temperature thermoplastic materials have a high viscosity near their melting point, which will adhere to the substances they come into contact with. If they stick to the skin, they may cause skin damage or secondary damage to the wound

[0003] In the prior art, by dipping or spraying the coating treatment solution on the surface of the low-temperature thermoplastic material, this method can effectively prevent sticking, but the production process is cumbersome and time-consuming, and the formed low-temperature thermoplastic sheet needs to be immersed in the coating treatment solution. Lift out to dry after a few minutes, requires a larger area for drying

Moreover, since the anti-adhesive layer is only formed on the low-temperature thermoplastic material, it is easily damaged, and once it is destroyed, the anti-adhesive effect will be lost.