TWI424873B - Preparation method of micro / nano colloidal material for shock absorption - Google Patents

Description

Micro/nano colloidal material for damping

The invention relates to a method for manufacturing a micro/nano colloidal material for damping, in particular to a high-performance shock absorbing structure process which can quickly and inexpensively implement the invention, and is widely used in national defense, sports, Medical, protective, transportation, or consumer goods, to achieve ease of production, low cost, good performance and a wide range of applications.

According to the general micro/nano colloidal solution, it is usually a fluid property. Therefore, when the micro/nano colloidal solution is applied to the relevant carrier, it can be used, thereby reducing Its weight or volume percentage (up to about 20% wt).

As far as we know, there is no relevant technology to systematically integrate the micro/nano colloid solution process, micro/nano colloid solution design and micro/nano colloid material testing, etc. Micro/nano colloidal materials are used in shock absorbing structures.

Therefore, the inventors of the present invention have made great efforts to study, through the technology of the present invention, the raw material of the micro/nano colloidal solution can be directly colloidized, and the limitation that must be applied to the carrier in the past application is removed, by greatly increasing the reduction. The proportion of effective materials in the shock pad (20% → 40% wt), and then enhance the shock absorption effect, in order to achieve better practical results.

The main object of the present invention is to enable the present invention to be completed quickly and at low cost. It is a high-performance shock absorbing structural process that is widely used in national defense, sports, medical, protective, transportation or civilian products to achieve easy production, low cost, good performance and a wide range of applications.

For the purpose of the above, the present invention is a method for preparing a micro/nano colloidal solution for shock absorption, comprising the following steps: Step 1: taking cerium oxide particles and polyethylene glycol, and adding an appropriate amount of additives to stir To uniform, to form a mixed solution; Step 2: heating to volatilize the additive in the mixed solution to form a micro/nano colloidal solution raw material; Step 3: adding a gelling agent to the micro/nano colloidal solution raw material, Forming a micro/nano colloidal solution mixture; and step 4: filling the micro/nano colloidal solution mixture into a mold and heating to solidify and shape the plastic structure.

In an embodiment of the invention, the particle size of the cerium oxide particles is between 50 nm and 500 μm.

In one embodiment of the invention, the molecular weight of the polyethylene glycol is between 400 and 6000.

In one embodiment of the invention, the additive may be ethylene glycol or glycerol.

In an embodiment of the invention, the mixing ratio of the cerium oxide particle diameter to the polyethylene glycol is between 20% and 60% by weight.

In an embodiment of the invention, the binder may be an acrylic monomer or a high molecular polymer.

In an embodiment of the invention, the mold may be a metal material with a temperature between 200 ° C and 350 ° C.

In an embodiment of the invention, the surface of the mold can be passivated to facilitate demolding.

In an embodiment of the present invention, the fourth step is heated by ultraviolet light irradiation, and the heating temperature is between 150 ° C and 190 ° C, and the heating time is between 1 hour and 2 hours. .

Please refer to FIG. 1, 2, 3 and 4, which are respectively a schematic diagram of the first step of the present invention, a schematic diagram of the second step of the present invention, a schematic diagram of the third step of the present invention and a schematic diagram of the fourth step of the present invention. As shown in the figure: The present invention is a method for producing a micro/nano colloidal solution for shock absorption, which comprises at least the following steps:

Step 1: taking cerium oxide particles 11 having a particle diameter of 50 nm to 500 μm and polyethylene glycol 12 having a molecular weight of 400 to 6000, and adding an appropriate amount of additive 13 and stirring until uniform to form a mixed solution. 1. The additive 13 may be ethylene glycol or glycerin, and the mixing ratio of the diameter of the cerium oxide particles 11 to the polyethylene glycol 12 is between 20% and 60% by weight.

Step 2: Heating 21 causes the additive 13 in the mixed solution 1 to be volatilized to form a micro/nano colloidal solution raw material 2.

Step 3: adding a gelling agent 31 to the micro/nano colloidal solution raw material 2 to form a micro/nano colloidal solution mixed material 3, wherein the adhesive linking agent 31 can be an acrylic monomer or a polymer. polymer.

Step 4: The micro/nano colloidal solution mixture 3 is filled in the mold 41, and the mold 41 can be a metal material with a temperature between 200 ° C and 350 ° C, and the surface of the mold 41 can be passivated. The mold is released, and the ultraviolet light 42 is irradiated to heat the micro/nano colloidal solution mixture 3 to be solidified. The heating temperature of the ultraviolet light 42 is between 150 ° C and 190 ° C, and the heating time is between 1 hour and 2 hours, so that the micro/nano colloidal solution mixture 3 can be shock-absorbing. Structural plastic material 4.

When the shock absorbing structure plastic material 4 is formed by the above steps, the simulation software (LS-DYNA) is used to perform structural modeling, stress analysis and correction according to the shock absorbing specification and the available space, and finally, the high G value is matched. Impact test to verify the shock absorption capacity of the structure, confirm the achievement of the shock absorption target; and based on the measured results, using 8mm thick shock absorbing gasket, the impact absorption effect of 85% or more on average under 100,000G/25μs impact conditions And when the shock absorbing structure plastic material 4 is subjected to a certain range of shearing force, the cerium oxide particle 11 is automatically aggregated to increase the overall viscosity due to the naturally occurring hydrogen bond effect; this special property Ideal for high-impact and high-frequency shock-absorbing structures, such as the missile industry's missile attack process, which protects critical components from physical damage in high-impact environments; in the future, related designs can also be used in sports Design of supplies (eg insoles, clubs or rackets), medical protection (eg protective clothing for old or disabled people) or other related applications with reduced impact requirements (eg helmets, car insurance) Rod or the like) ... the like, thereby, the present invention can achieve at least the following advantages:

1. With the technology of the present invention, the development of the high-efficiency shock absorbing structure plastic material 4 can be completed quickly and at low cost.

2. The integrated technology of the present invention has a wide range of applications, as long as there is a need for shock absorption or buffering, from the defense industry to general sporting goods, medical protection or traffic safety protection equipment.

In summary, the method for manufacturing the micro/nano colloidal solution for shock absorption of the present invention can effectively improve various disadvantages of the conventional use, and can enable the invention to complete the high-efficiency shock absorbing structure process quickly and at low cost for wide application. In defense, sports, medical care, Protection, transportation or livelihood supplies, achieving easy to manufacture, low cost, good performance and a wide range of applications; thus making the invention more progressive, more practical, and more in line with consumer needs, indeed in line with the invention For the requirements of the patent application, the patent application is filed according to law.

However, the above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto; therefore, the simple equivalent changes and modifications made in accordance with the scope of the present invention and the contents of the invention are modified. All should remain within the scope of the invention patent.

1‧‧‧ mixed solution

11‧‧‧ cerium oxide particles

12‧‧‧ Polyethylene glycol

13‧‧‧ Additives

2‧‧‧Micro/nano colloidal solution raw materials

21‧‧‧heating

3‧‧‧Micro/nano colloidal solution

31‧‧‧ glue agent

4‧‧‧Vibration structure plastic

41‧‧‧Mold

42‧‧‧ ultraviolet light

Figure 1 is a schematic view of the first step of the present invention.

Figure 2 is a schematic diagram of the second step of the present invention.

Figure 3 is a schematic diagram of the third step of the present invention.

Figure 4 is a schematic view of the fourth step of the present invention

3‧‧‧Micro/nano colloidal solution

4‧‧‧Vibration structure plastic

41‧‧‧Mold

42‧‧‧ ultraviolet light

Claims (8)

A method for preparing a micro/nano colloidal solution for shock absorption, comprising: step 1: taking cerium oxide particles and polyethylene glycol, and adding an appropriate amount of the additive to be evenly mixed to form a mixed solution, wherein The additive system may be ethylene glycol or glycerol; Step 2: heating to volatilize the additive in the mixed solution to form a micro/nano colloidal solution raw material; Step 3: in the micro/nano colloidal solution raw material The gelling agent is added to form a micro/nano colloidal solution mixture; and step 4: the micro/nano colloidal solution mixture is filled in a mold and heated to be solidified to form a shock absorbing structure plastic material. The method for producing a micro/nano colloidal solution for shock absorption according to the first aspect of the patent application, wherein the particle size of the cerium oxide particles is between 50 nm and 500 μm . The method for preparing a micro/nano colloidal solution for shock absorption according to the first aspect of the patent application, wherein the polyethylene glycol has a molecular weight of between 400 and 6000. The method for preparing a micro/nano colloidal solution for shock absorption according to the first aspect of the patent application, wherein the mixing ratio of the cerium oxide particle diameter to the polyethylene glycol is between 20% and 60% Between wt. The method for producing a micro/nano colloidal solution for shock absorption according to the first aspect of the patent application, wherein the adhesive agent may be an acrylic monomer or a high molecular polymer. The method for preparing a micro/nano colloidal solution for shock absorption according to the first aspect of the patent application, wherein the mold can be a temperature between 200 ° C and 350 ° C Is a material. The method for preparing a micro/nano colloidal solution for shock absorption according to the first aspect of the patent application, wherein the surface of the mold is passivated to facilitate demolding. The method for preparing a micro/nano colloidal solution for shock absorption according to the first aspect of the patent application, wherein the fourth step is heated by ultraviolet light irradiation, and the heating temperature is 150 ° C. Between 190 ° C, and the heating time is between 1 hour and 2 hours.