Combined energy absorption method and application thereof

A polymer and selected technology, applied in the field of combined energy absorption, can solve the problems of human injury, impact energy dissipation, limited shock absorption performance, etc.

Inactive Publication Date: 2020-07-07
翁秋梅
View PDF0 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when this material is used in human body protection or precision instrument protection, the main disadvantage is that the shock absorption performance is limited. When subjected to severe impacts, ordinary protective materials cannot effectively dissipate the impact energy, and there will still be A strong impact force acts on the human body or equipment, which may cause personal injury or equipment damage

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Combined energy absorption method and application thereof
  • Combined energy absorption method and application thereof
  • Combined energy absorption method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0409] In the preparation process of dynamic polymer foam materials, three methods of mechanical foaming, physical foaming and chemical foaming are mainly used to foam dynamic polymers.

[0410] Among them, the mechanical foaming method is to introduce a large amount of air or other gases into the emulsion, suspension or solution of the polymer with the help of strong stirring during the preparation of the dynamic polymer to make it a uniform foam, and then through physical Or chemical changes make it shape and become a foam material. In order to shorten the molding cycle, air can be introduced and emulsifiers or surfactants can be added.

[0411] Wherein, the physical foaming method is to use physical principles to realize the foaming of the polymer during the preparation of the dynamic polymer, which includes but not limited to the following methods: (1) inert gas foaming method, that is, after adding Press the inert gas into the molten polymer or pasty material under press...

Embodiment 1

[0431] Using AIBN as an initiator, react 3-(2-hydroxyethyl) phenylboronic acid pinacol ester with acryloyl chloride to prepare phenylboronic ester acrylate monomer, and then react it with methyl methacrylate and mercaptomethyl Acrylate copolymer (a) is obtained by radical polymerization of methacrylate.

[0432] Add a certain amount of toluene solvent in a dry and clean reaction bottle, then add 8mmol of acrylate copolymer (a) and stir to dissolve completely, then dropwise add an appropriate amount of acetic acid aqueous solution for hydrolysis for 30min, then add an appropriate amount of anhydrous sodium sulfate, Heat nitrogen to 80°C to remove water and oxygen for 3 hours, then add appropriate amount of triethylamine and manganese dioxide oxidant, 0.04mol polycaprolactone diol, continue to stir for 3 hours, then add 5wt% titanium alloy powder, 5wt% Ceramic powder, 10wt% calcium sulfate, after stirring evenly, continue to react for 2h. After the reaction was completed, the p...

Embodiment 2

[0435]Add 2,2,6,6-tetramethyl-1-oxypiperidine to the mixed solution of styrene and benzoyl peroxide, and heat to 90°C for 20 h under the protection of nitrogen to obtain compound (a), wherein , the molar ratio of benzoyl peroxide and 2,2,6,6-tetramethyl-1-oxypiperidine is 1:2; the ethanol solution in which compound (a) will be dissolved is added to the KOH aqueous solution, in Compound (b) was prepared by reflux reaction for 16 h under the protection of nitrogen; then compound (b) was reacted with isocyanoethyl methacrylate in an equimolar amount to obtain methacrylate monomer (c). Reaction of equimolar amounts of 2,2,6,6-tetramethyl-1-(1-phenylethoxy)-4-piperidinol with isocyanoethyl methacrylate to prepare methacrylate Monomer (d). Using potassium persulfate as an initiator, using methacrylate monomer (c) and methyl methacrylate as raw materials, to obtain copolymerized acrylate 1 through radical polymerization; using potassium persulfate as an initiator, using methacrylate...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
glass transition temperatureaaaaaaaaaa
glass transition temperatureaaaaaaaaaa
tensile strengthaaaaaaaaaa
Login to view more

Abstract

The invention discloses a combined energy absorption method and application thereof. According to the combined energy absorption method, a combined hybrid dynamic polymer containing boron-containing dynamic covalent bonds, other dynamic covalent bonds and optional hydrogen bonds is adopted for energy absorption. According to the combined hybrid dynamic polymer, the boron-containing dynamic covalent bonds with different dynamic properties, other dynamic covalent bonds and optional hydrogen bonds are introduced, so that a dynamic polymer material with a wide controllable range, rich structures and various properties can be prepared. When the polymer material is physically impacted, the polymer material has the effects of absorbing, dissipating and dispersing impact energy. The dynamic polymer is used as an energy absorption material for energy absorption, has the effects of damping, buffering, impact resistance protection, noise elimination, sound insulation, shock absorption and the like, and can be applied to the aspects of body protection of sports and daily life, military police body protection, explosion prevention, airborne landing and airdrop protection, automobile collision prevention, impact resistance protection of electronic and electrical products and the like.

Description

technical field [0001] The invention relates to a combined energy absorbing method, in particular to a combined energy absorbing method based on a combined hybrid dynamic polymer composed of boron-containing dynamic covalent bonds, other dynamic covalent bonds and optional hydrogen bonds and its use. Background technique [0002] In daily life and actual production process, it is often necessary to use methods or means to avoid or slow down the impact of physical impact caused by impact, vibration, vibration, explosion, sound, etc. Among them, the most widely used is the use of a A kind of energy-absorbing material for energy absorption, so as to play an effective role in protecting against physical impact. Materials used for energy absorption mainly include metals, polymers, and composite materials. Among them, the energy loss sources of polymer materials mainly include the following types: 1. Using the phenomenon that polymers have a high loss factor near their glass tra...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/24
CPCC08J3/243
Inventor 不公告发明人
Owner 翁秋梅
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap