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Integrally-moulded environment-friendly protective pad and production method thereof

A production method and technology for protective pads, which can be applied in coating and other directions, can solve problems such as hidden dangers, flammability, and easy to break, and achieve the effects of less hidden dangers, excellent elasticity, and environmentally friendly materials.

Active Publication Date: 2018-10-02
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the field of protective pads, the current technology mainly uses expandable polyethylene (EPE), ethylene-vinyl acetate (EVA), artificial sponge, rubber or polyurethane (PU) as the main raw materials for processing and molding. On the one hand, these materials come from Petrochemical resources are not conducive to sustainable development; secondly, affected by the processing of polymer materials, most of the protective pads have peculiar smell and are flammable, and some materials have low surface strength and are easy to be scratched, such as pearl foam cotton. There are safety hazards in actual use

Method used

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  • Integrally-moulded environment-friendly protective pad and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A production method of an integrally formed environmental protective pad, the specific steps are as follows:

[0037] (1). According to cellulose and Mg / Al(CO 3 )-LDHs mass ratio is 5:2, wet the raw material with alkaline urine solution after weighing the raw material, freeze and stir to dissolve the cellulose, and finally form a cellulose concentration of 3% and Mg / Al(CO 3 )-LDHs uniformly distributed mixed solution.

[0038] (2). Take the mixed solution in (1), add EDTA according to 0.8g EDTA / 50g mixed solution, ultrasonically disperse and stir until it is completely dissolved, then pour it into a mold until the liquid height is 1cm, and age for 24 hours to form a cellulose gel.

[0039] (3). Take out the cellulose gel described in (2) together with the mold and regenerate it in absolute ethanol, and then soak it in tert-butanol to replace it with water / tert-butanol solution. The gel was taken out to dry, and the sample was freeze-dried together with the mold. After...

Embodiment 2

[0044] A production method of an integrally formed environmental protective pad, the specific steps are as follows:

[0045] (1). According to cellulose and Ca / Al(H 2 PO 4 )-LDHs, Mg / Al(CO 3 )-LDHs total mass ratio is 5:4 Weigh the raw material and wet the raw material with LiCl / N,N-dimethylacetamide solution, gradually raise the temperature to 120°C and keep it for 20min to make the mixture form a layered double metal hydroxide Disperse 3% cellulose mixture. where Ca / Al(H 2 PO 4 )-LDHs:Mg / Al(CO 3 )-LDHs=1:1.

[0046] (2). Take the mixed solution in (1), add MBA according to 0.8g MBA / 50g mixed solution, ultrasonically disperse and stir until it is completely dissolved, pour the mold to a liquid height of 5cm, and age for 24 hours to form a cellulose gel.

[0047] (3). Take out the cellulose gel described in (2) together with the mold and regenerate it in ethanol to form an alcohol gel. Take out the gel and air-dry the surface, and carry out carbon dioxide supercritical...

Embodiment 3

[0051] A production method of an integrally formed environmental protective pad, the specific steps are as follows:

[0052] (1). According to cellulose and Mg / Al(OH)-LDHs, Ca / Al(HPO 4 )-LDHs total mass ratio is 5:4 Weigh the raw materials, mix the raw materials with NMMO, and dissolve the cellulose to form a layered double metal hydroxide / cellulose mixed solution with a cellulose concentration of 4%.

[0053] (2). Take the mixed solution in (1), add MBA according to 0.6g MBA / 50g mixed solution, ultrasonically disperse and stir until it is completely dissolved, pour it into a mold until the liquid height is 2cm, and age for 12 hours to form a cellulose gel.

[0054] (3). Take out the cellulose gel described in (2) together with the mold and regenerate it in dimethyl sulfoxide (DMSO), and then soak it in acetone for DMSO / acetone solution replacement. Take out the gel and air-dry the surface, and carry out carbon dioxide supercritical drying on the sample together with the mold...

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Abstract

The invention relates to a protective pad, in particular to an integrally-moulded environment-friendly protective pad and a production method thereof, and belongs to the technical field of novel materials. The production method of the integrally-moulded environment-friendly protective pad comprises the following steps: regenerating and crosslinking cellulose as a raw material, compounding with layered bimetallic hydroxide, and performing freeze drying to obtain an elastomer having a three-dimensional texture on the surface; then, printing and colorizing the elastomer by using a reactive dye toform a three-dimensional pattern on the surface thereof; finally, forming a surface waterproofing layer on the surface with the three-dimensional pattern through organosilicon silanization to obtainthe integrally-moulded environment-friendly protective pad. The environment-friendly protective pad product has a water-proof and anti-slip printed texture on the surface; the environment-friendly protective pad adopts a three-dimensional porous structure overall, has excellent elasticity and has an anti-collision function; meanwhile, the environment-friendly protective pad is good in flame retardance, and low in heat release, low in rate, low in smoke and free of toxic gas during combustion, safe and environmentally friendly.

Description

technical field [0001] The invention relates to a protective pad body, in particular to an integrally formed environment-friendly protective pad and a production method thereof, belonging to the technical field of new materials. Background technique [0002] With the improvement of human living standards and the acceleration of the pace of life, people are constantly pursuing "comfort, safety, and convenience" for daily appliances. In the field of protective pads, the current technology mainly uses expandable polyethylene (EPE), ethylene-vinyl acetate (EVA), artificial sponge, rubber or polyurethane (PU) as the main raw materials for processing and molding. On the one hand, these materials come from Petrochemical resources are not conducive to sustainable development; secondly, affected by the processing of polymer materials, most of the protective pads have peculiar smell and are flammable, and some materials have low surface strength and are easy to be scratched, such as p...

Claims

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Application Information

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IPC IPC(8): C08J9/40C08J9/28C08J9/36C08J3/075C08L1/02
CPCC08J3/075C08J9/28C08J9/36C08J9/40C08J2301/02
Inventor 刘琳骆晓蕾李震姚菊明
Owner ZHEJIANG SCI-TECH UNIV