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Waterproof and breathable polypropylene composite material, and preparation method and application thereof

A composite material, polypropylene technology, applied in the field of materials, can solve the problems of insufficient performance of waterproof, waterproof, breathable and moisture permeability of medical protective clothing, reduce work efficiency, etc., and achieve discomfort relief and excellent antibacterial performance. , to solve the effect of reducing mechanical properties

Active Publication Date: 2020-07-03
江门市瑞祥复合材料研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the protective clothing prepared from polypropylene has obvious disadvantages of poor hydrophilicity and insufficient waterproof, breathable and moisture permeable properties.
Therefore, medical workers produce a lot of sweat under intense work (the sweating amount of the human body can exceed 10000g / (m2×24h) during high-intensity operations), and the medical disposable protective clothing The moisture permeability standard is only ≥2500g / (m2×24h), so sweat cannot be well dissipated through ordinary protective clothing, which greatly affects the wearing comfort and inevitably reduces the work efficiency. efficiency
At the same time, the hydrostatic pressure resistance standard of the existing protective clothing is not less than 1.67kPa (ie 17cmH2O), and this standard cannot fully meet the needs of the waterproofness of medical protective clothing, so it is still needs further improvement

Method used

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  • Waterproof and breathable polypropylene composite material, and preparation method and application thereof
  • Waterproof and breathable polypropylene composite material, and preparation method and application thereof
  • Waterproof and breathable polypropylene composite material, and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0039] A polypropylene composite material is mainly prepared from the following raw material components in parts by weight:

[0040]

[0041] Wherein the coupling agent is selected from silane coupling agent, and the antibacterial agent is selected from zirconium phosphate and silver ion antibacterial agent (the amount ratio of the two is 1:1).

[0042] The preparation method of above-mentioned polypropylene composite material, comprises the following steps:

[0043] (1) After sodium alginate and calcium chloride were dissolved in water respectively, the sodium alginate solution was dropped into the calcium chloride solution (concentration: 2%), and after reacting for 30 minutes, calcium alginate micelle was generated;

[0044] (2) Add the remaining components and the calcium alginate colloidal particles prepared in step (1) into a high-speed mixer for mixing, the mixing temperature is 60°C, the mixing time is 15min, and the speed of mixing is 300r / min to obtain Mixture; ...

Embodiment 2

[0047] A polypropylene composite material is mainly prepared from the following raw material components in parts by weight:

[0048]

[0049]

[0050] The coupling agent is selected from titanate coupling agents, and the antibacterial agent contains 40% zirconium phosphate and 60% quaternary ammonium salt antibacterial agent.

[0051] The preparation method of above-mentioned polypropylene composite material, comprises the following steps:

[0052] (1) After sodium alginate and calcium chloride were dissolved in water respectively, the sodium alginate solution was dropped into the calcium chloride solution (concentration: 2%), and after 40 minutes of reaction, calcium alginate micelle was generated;

[0053] (2) Add the remaining components and the calcium alginate colloidal particles prepared in step (1) into a high-speed mixer and mix them at a temperature of 70°C, and the mixing time is 5 minutes, and the speed of mixing is 350r / min to obtain a mixed material;

[00...

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Abstract

The invention belongs to the field of materials, and discloses a polypropylene composite material. The polypropylene composite material is mainly prepared from the following components: polypropylene,PVA, LLDPE, a coupling agent, alginate, calcium chloride, an antibacterial agent and water. The preparation method of the polypropylene composite material comprises the following steps: (1) respectively dissolving alginate and calcium chloride with water, and carrying out mixing to generate colloidal calcium alginate particles; (2) adding the rest components and the colloidal calcium alginate particles prepared in the step (1) into a mixer for mixing to obtain a mixture; and (3) adding the mixture obtained in the step (2) into an extruder for extrusion and granulation to obtain the polypropylene composite material. Medical protective clothing prepared from the polypropylene composite material has excellent water resistance, air permeability and moisture penetrability, and also has good antibacterial performance and mechanical strength, and the performance of the medical protective clothing can better meet practical requirements on the medical protective clothing.

Description

technical field [0001] The invention belongs to the field of materials, in particular to a waterproof and breathable polypropylene composite material, a preparation method and application thereof. Background technique [0002] Among the medical protective clothing currently on the market, the most commonly used material is polypropylene, which has the advantages of good protective performance and low cost, and is widely favored by the industry. However, protective clothing prepared from polypropylene has obvious disadvantages of poor hydrophilicity, and insufficient waterproof, breathable and moisture permeable performance. Therefore, medical workers produce a lot of sweat under intense work (the amount of sweating of the human body can exceed 10000g / (m2 during high-intensity surgery) 2 ×24h)), while the moisture permeability standard of medical disposable protective clothing is only ≥2500g / (m 2 ×24h), so sweat cannot be well distributed through ordinary protective clothin...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L29/04C08L23/08C08L5/04C08K3/16C08K3/32A41D13/12A41D31/102A41D31/30A41D31/24A41D31/04
CPCC08L23/12A41D13/12A41D31/102A41D31/30A41D31/24A41D31/04C08L2205/035C08K2003/321C08K2003/162C08L29/04C08L23/0815C08L5/04C08K3/16C08K3/32
Inventor 吴德山张瑞祥张至祥黄伟强裴明霞于晖
Owner 江门市瑞祥复合材料研究院有限公司