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Bio-based disposable glove material and preparation method thereof

A disposable, bio-based technology, applied in the field of disposable glove materials, can solve the problems of white pollution, difficult to degrade, pollute the environment, etc., and achieve the effects of solving environmental hazards, facilitating industrial production, and simple processing.

Inactive Publication Date: 2021-04-30
WUHAN HUALI ENVIRONMENT PROTECTION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the raw materials used in disposable plastic gloves currently on the market are polyethylene (PE), polyvinyl chloride (PVC), nitrile rubber (NBR), etc. These plastic raw materials are derived from non-renewable resources such as the petrochemical industry, petrochemical resources The increasing shortage of raw materials has brought a crisis to the long-term supply of raw materials, and the cost is getting higher and higher. Moreover, the disposable gloves produced cannot be degraded or are difficult to degrade after being discarded. They can remain in nature for hundreds of years, resulting in a large number of "white gloves". pollution", seriously polluting the environment
[0003] At present, domestic patents on disposable gloves are mostly invention patents, which focus on the shape and structure of gloves; there are also some biodegradable gloves, although they can solve environmental problems, but the cost is too high for large-scale industrial production, resulting in the use of has limitations

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0025] The preparation method of this bio-based disposable glove material comprises the following steps:

[0026] First, put the natural substrate, graft monomer, emulsifier, and water into the high-pressure homogenizer according to the designed amount, mix evenly, and then perform homogenization treatment under the homogenization pressure of 10,000-15,000 psi to obtain a suspension. During this process, the suspension creates a series of physical and chemical changes, and the natural substrate is hydrophobically modified by grafting monomers and emulsifiers. Then, dry the treated suspension to make the water content less than 1%, so as to obtain the graft-modified natural base material powder. Then mix the above-mentioned graft-modified natural substrate powder with polyethylene, extrude and granulate through a twin-screw extruder, the screw length-to-diameter ratio is ≥36, the temperature of the extruder is 150-170°C, and the extrusion speed is 150 ~250rpm, air-cooled and g...

Embodiment 1

[0030] This embodiment provides a bio-based disposable glove material, comprising the following components in parts by weight: 100 parts of bamboo powder, 20 parts of methacrylate, 2 parts of oleic acid, 15 parts of polyethylene, and 100 parts of water .

[0031] The preparation process of the bio-based disposable glove material is as follows:

[0032] Put bamboo powder, water, methacrylate, and oleic acid into a high-pressure homogenizer, stir for 5 minutes to make the materials fully contact; then react for 15 minutes under a homogeneous pressure of 15,000 psi to obtain a suspension of grafted bamboo powder liquid; then the suspension is dried in an oven to make the water content less than 1%, and the natural polymer powder is obtained.

[0033] Then mix the natural polymer powder with polyethylene, extrude and granulate through a twin-screw extruder with a screw aspect ratio ≥ 36, the temperature of the extruder is 150°C-170°C, and the extrusion speed is 200rpm, and the bi...

Embodiment 2

[0035] This embodiment provides a bio-based disposable glove material, comprising the following components in parts by weight: 100 parts of starch, 25 parts of dichloromaleic anhydride, 1 part of lauric acid, 10 parts of polyethylene, and 120 parts of water .

[0036] The preparation process of the bio-based disposable glove material is as follows:

[0037] Put bamboo powder, water, methacrylate, and oleic acid into a high-pressure homogenizer, stir for 5 minutes to make the materials fully contact; then react for 15 minutes under a homogeneous pressure of 10,000 psi to obtain a grafted bamboo powder suspension liquid; then the suspension is dried in an oven to make the water content less than 1%, and the natural polymer powder is obtained.

[0038] Then mix the natural polymer powder with polyethylene, extrude and granulate through a twin-screw extruder with a screw aspect ratio ≥ 36, the temperature of the extruder is 150°C-170°C, and the extrusion speed is 150rpm, and the ...

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PUM

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Abstract

The invention provides a bio-based disposable glove material. The bio-based disposable glove material comprises the following components in parts by weight: 100 parts of a natural base material, 20-25 parts of a grafting monomer, 1-5 parts of an emulsifier, 5-20 parts of polyethylene and 100-150 parts of water. In addition, the invention also provides a preparation method of the bio-based disposable glove material. According to the invention, a natural base material is adopted as a main raw material, hydrophobic modification is carried out on the natural base material through a grafting monomer, an emulsifier and the like, and thermoplastic modification is carried out on the natural base material through polyethylene, so that the natural base material can be used for preparing disposable glove materials, and the raw material is derived from renewable resources and is environment-friendly; and the bio-based disposable glove material can effectively solve the problem of harm of an existing disposable glove to the environment, meanwhile, the material cost is greatly reduced, the processing process is simple, and industrial production is facilitated.

Description

technical field [0001] The invention belongs to the technical field of disposable glove materials, and in particular relates to a bio-based disposable glove material and a preparation method thereof. Background technique [0002] Disposable plastic protective gloves are widely used in food processing, medical protection, catering and industrial labor insurance and other fields. Most of the raw materials used in disposable plastic gloves currently on the market are polyethylene (PE), polyvinyl chloride (PVC), nitrile rubber (NBR), etc. These plastic raw materials are derived from non-renewable resources such as the petrochemical industry, petrochemical resources The increasing shortage of raw materials has brought a crisis to the long-term supply of raw materials, and the cost is getting higher and higher. Moreover, the disposable gloves produced cannot be degraded or are difficult to degrade after being discarded. They can remain in nature for hundreds of years, resulting in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L51/00C08L51/02C08L23/06
CPCC08L51/00C08L51/02C08L2205/03C08L2205/025C08L2201/06
Inventor 曾勤王继鑫
Owner WUHAN HUALI ENVIRONMENT PROTECTION SCI & TECH