CN112143073A - Stress luminous carpet and preparation method thereof - Google Patents

Abstract

The present invention relates to a stress luminescent carpet and a preparation method thereof. The preparation method of the above stress luminescent carpet includes the following steps: adding a stress luminescent material in the preparation process of the elastic plastic to prepare the stress luminous carpet, the raw material for preparing the elastic plastic includes a polymer matrix and an antistatic agent, and the antistatic agent includes polyethylene oxide. The above stress luminescent carpet is designed based on the principle of stress luminescence. The stress luminescent material has the unique property of being able to emit light by itself without external power supply under the action of external stress, and uses polyethylene oxide as a bridge, which has high elasticity and wear resistance. The elastic plastic is uniformly combined in the preparation process of the elastic plastic. Compared with the traditional light-emitting carpet based on the LED principle, the self-luminous carpet based on the stress light-emitting principle requires no external energy and zero energy consumption.

Description

Stress luminescent carpet and method of making the same

technical field

The invention relates to the field of stress luminescence, in particular to a stress luminescence carpet and a preparation method thereof.

Background technique

At present, there is some research in the direction of luminescent carpets and the only products that have been made are electroluminescent LED-based carpet products. Carpet, because human eyes and senses have the characteristic of instinctively observing the floor, the carpet ingeniously integrates LED lighting technology into the textile, and combined with the automatic control of the intelligent chip, it can realize the light following the footsteps of people and intelligently guide the path direction and Various identification instructions.

Although many designers and companies have participated in the research and development of luminous carpets, the current products are all based on the principle of LED electroluminescence. The biggest disadvantage is that the energy consumption problem has not been effectively solved, which does not meet the current strong demand for environmental protection. , the safety issues brought about by luminous carpets that require an external power supply are still a concern for people. In addition, long afterglow luminescent materials can be used as light storage materials, and their fabrics have been commercialized, but long afterglow luminescent materials need to absorb ambient light and cannot be excited by pressure to emit light.

SUMMARY OF THE INVENTION

Based on this, it is necessary to provide a stress luminescent carpet that can reduce energy consumption and improve safety and a preparation method thereof.

A method for preparing a stress luminescent carpet, comprising the following steps: adding a stress luminescent material during the preparation of an elastic plastic to prepare a stress luminescent carpet, the raw materials for preparing the elastic plastic include a polymer matrix and an antistatic agent, and the antistatic Agents include polyethylene oxide.

In one embodiment, the elastic plastic is EPE pearl cotton, the polymer matrix includes polyethylene, and the raw material for preparing the elastic plastic further includes a foaming agent.

In one embodiment, the step of adding the stress luminescent material during the preparation of the elastic plastic comprises:

heating and melting the polymer matrix, and then mixing with the stress luminescent material and the foaming agent for foaming;

The foamed material is extruded, drawn and shaped, and then the antistatic agent is added to form an antistatic film on the surface of the shaped material.

In one embodiment, the step of adding the stress luminescent material during the preparation of the elastic plastic comprises:

Mixing the antistatic agent and the stress luminescent material in water to prepare a mixed solution;

The polymer matrix is heated and melted, and then mixed with the foaming agent for foaming;

The foamed material is extruded, drawn and shaped, and then the mixed solution is added to form an antistatic film containing the stress luminescent material on the surface of the shaped material.

In one embodiment, the raw material for preparing the elastic plastic further includes an internal lubricant and an anti-shrinkage agent, and in the step of heating and melting the polymer matrix, the internal lubricant and the anti-shrinkage agent are also added. The shrinkage agent is heated and melted.

In one embodiment, the internal lubricant includes low molecular weight polypropylene and polyethylene waxes.

In one embodiment, in parts by mass, the raw materials for preparing the EPE pearl cotton include 70 to 90 parts of polyethylene, 5 to 10 parts of antistatic agent, 1 to 5 parts of foaming agent, and internal lubrication. 2-6 parts of anti-shrinkage agent and 2-8 parts of anti-shrinkage agent.

In one embodiment, the blowing agent includes diethyl ether and butane.

In one embodiment, the mass ratio of the stress luminescent material to the raw material for preparing the elastic plastic is (0.1-200):100.

In one embodiment, the mass ratio of the stress luminescent material to the raw material for preparing the elastic plastic is (0.4-50):100.

In one embodiment, the stress luminescent material is selected from ZrO ₂ :Ti, ZnS:Mn, ZnS:Cu, ZnS:Ag, SrAl ₂ O ₄ :Eu, SrMgAl ₆ O ₁₁ :Eu, SrBaMgSi ₂ O ₇ : Eu, Sr ₂ MgSi ₂ O ₇ :Eu, Ca ₂ MgSi ₂ O ₇ :Eu, Ca ₂ MgSi ₂ O ₇ :Dy, CaYAl ₃ O ₇ :Eu, ZnGa ₂ O ₄ :Mn, MgGa ₂ O ₄ :Mn, Ca ₂ Al ₂ SiO ₇ :Ce, CaZnOS:Mn, CaZnOS:Tb, CaZnOS:Pr, CaZnOS:Sm, CaZnOS:Ho, CaZnOS:Dy, CaZnOS:Er, CaZnOS:Eu, CaZnOS-ZnS:Bi, CaZnOS-ZnS :Ag, CaZnOS-ZnS:Cu, CaZnOS-ZnS:Mn, CaZnOS-ZnS:Tb, CaZnOS-ZnS:Pr, CaZnOS-ZnS:Sm, CaZnOS-ZnS:Ho, CaZnOS-ZnS:Dy, CaZnOS-ZnS:Er and at least one of CaZnOS-ZnS:Eu.

In one embodiment, the stress luminescent material is ZnS:Mn, ZnS:Cu, SrAl ₂ O ₄ :Eu, CaZnOS-ZnS:R, where R is Mn, Cu or Bi.

A stress luminescent carpet includes elastic plastic and stress luminescent material doped in the elastic plastic. The raw materials for preparing the elastic plastic include a polymer matrix and an antistatic agent, and the antistatic agent includes polyethylene oxide.

In one embodiment, the stress luminescent carpet is prepared by the above-mentioned method for preparing a stress luminescent carpet.

The above stress luminescent carpet is designed based on the principle of stress luminescence, using stress luminescent material, antistatic agent and polymer matrix as raw materials, and the antistatic agent includes polyethylene oxide. It can be used as an antistatic agent in the preparation process of pearl cotton, so that the stress luminescent material can be used in the preparation of elastic plastics to obtain a stress luminescent carpet. And the use of stress luminescent materials has the unique property of being able to emit light without an external power supply under the action of external stress such as human beings stepping on it, and it is incorporated in the preparation process of elastic plastics. Compared with the traditional light-emitting carpet based on the principle of LED , The above stress self-luminous carpet does not require external energy, zero energy consumption and safety and environmental protection.

Detailed ways

In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to specific embodiments. Preferred embodiments of the present invention are given in the detailed description. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that a thorough and complete understanding of the present disclosure is provided.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention.

The purpose of the present invention is to provide a self-luminous treaded carpet based on the principle of stress luminescence and a preparation method thereof. The use of stress luminescent materials has the unique property of being able to emit light without an external power supply under the action of external stress, and is evenly combined with elastic plastics with high elasticity and wear resistance in the preparation process of elastic plastics. The stress luminescent carpet of the present invention can be obtained by pressing, pulling, rolling and other operations in the preparation process. Compared with the traditional light-emitting carpet based on the LED principle, the self-luminous carpet based on the stress light-emitting principle requires no external energy and zero energy consumption, and all the materials used in the preparation process are non-toxic, harmless, environmentally friendly and healthy, with a simple structure and wear-resistant and impact-resistant. , the scope of application is extremely wide, not only in the floor channel of the indoor environment, but also in the outdoor runway road has a huge application prospect.

Specifically, a method for preparing a stress luminescent carpet according to an embodiment includes the following steps: adding a stress luminescent material in the preparation process of an elastic plastic to prepare a stress luminescent carpet, the raw materials for preparing the elastic plastic include a polymer matrix and an antistatic agent, an antistatic agent Static agents include polyethylene oxide.

In one embodiment, the elastic plastic is EPE pearl cotton. The polymer matrix includes polyethylene, and the raw materials for preparing elastic plastics also include a foaming agent. At this time, the preparation method of the stress luminous carpet includes the following steps: adding a stress luminescent material in the preparation process of the EPE pearl cotton to prepare the stress luminous carpet, and the raw materials for preparing the EPE pearl cotton include polyethylene, an antistatic agent and a foaming agent, Antistatic agents include polyethylene oxide. It can be understood that, in other embodiments, the elastic plastic is not limited to EPE pearl cotton, but can also be a commonly used elastic plastic.

Specifically, in one of the embodiments, the step of adding the stress luminescent material in the preparation process of the EPE pearl cotton includes:

Mix the polyethylene oxide and the stress luminescent material in water to prepare a mixed solution;

Polyethylene is heated and melted, and then a foaming agent is added for foaming;

The foamed material is extruded, drawn and shaped, and then the mixed liquid is added to form an antistatic film containing the stress luminescent material on the surface of the shaped material.

Wherein, the polyethylene oxide and the stress luminescent material are mixed in water, and the specific steps of preparing the mixed solution are: firstly dissolving the polyethylene oxide in the water, then adding the stress luminescent material, and stirring until fully mixed. In the mixed solution, the concentration of polyethylene oxide is 0.5 mol/L to 1.0 mol/L. It can be understood that, in other embodiments, the concentration of polyethylene oxide is not limited to the above-mentioned value, and can also be adjusted according to the luminous brightness.

Polyethylene oxide (PEO) can be used not only as a binder for stress luminescent materials but also as an antistatic agent for pearl cotton EPE. Therefore, in this embodiment, polyethylene oxide (PEO) is used as a bridge, and the prepared stress luminescent material is mixed with PEO and then filled into EPE pearl cotton to make a composite cotton of stress luminescent powder.

Specifically, the polyethylene is low density polyethylene. The density of the low density polyethylene is 0.91 g/cm ³ to 0.93 g/cm ³ . Before the step of heating and melting the polyethylene, the polyethylene is subjected to a wind-selection process.

Further, the raw material for preparing EPE pearl cotton also includes an internal lubricant and an anti-shrinkage agent, and in the step of heating and melting the polyethylene, an internal lubricant and an anti-shrinking agent are also added for heating and melting. Specifically, the internal lubricants include low molecular weight polypropylene and polyethylene waxes. Further, the internal lubricant is a mixture of low molecular weight polypropylene and polyethylene wax. In one embodiment, the mass ratio of low molecular weight polypropylene and polyethylene wax is 1:1. It can be understood that in the foaming agent, the mass ratio of low molecular weight polypropylene and polyethylene wax is not limited to 1:1, and can also be other ratios commonly used in the art, which will not be repeated here. Low molecular weight polypropylene is a crystalline waxy or soft waxy solid with a density of 0.89, which is obtained by cracking high molecular weight polypropylene by thermal cracking. In one embodiment, the low molecular weight polypropylene has a molecular weight of 3000-4000.

In one of these embodiments, the anti-shrinkage agent is a monoglyceride.

In one of the embodiments, the step of heating and melting the polyethylene is as follows: sequentially adding the raw materials in the order of the polyethylene, the internal lubricant and the anti-shrinkage agent, and then heating and stirring to melt. In one of the embodiments, under the condition that the rotation speed is 100r/min, the clockwise stirring and the counterclockwise stirring are alternately performed, each 1min, and the longest stirring time does not exceed 10min. It can be understood that the above-mentioned parameters such as rotating speed and stirring time are not limited to the above-mentioned values, and can also be adjusted according to the amount of raw materials, etc., which are common knowledge in the art, and will not be repeated here.

Blowing agents include ether and butane. Further, the blowing agent is a mixture of diethyl ether and butane. In one embodiment, the mass ratio of ether and butane is 2:1. It can be understood that, in the foaming agent, the mass ratio of diethyl ether and butane is not limited to 2:1, and can also be other ratios commonly used in the art, which will not be repeated here.

The specific step of adding a foaming agent to foam is as follows: mixing the polyethylene, the internal lubricant and the anti-shrinkage agent by stirring and mixing the material and the foaming agent in a foaming machine and stirring evenly. The processing time of the foaming machine shall not exceed 45min. It can be understood that the parameters in the above-mentioned transfoaming process, such as time, etc., can be adjusted according to the amount of raw materials, etc., which are common knowledge in the art, and will not be repeated here.

In other embodiments, the step of adding stress luminescent material in the preparation process of EPE pearl cotton includes:

The polyethylene is heated and melted, then the stress luminescent material is added, and then the foaming agent is added for foaming;

The foamed material is extruded, drawn and shaped, and then an antistatic agent is added to form an antistatic film on the surface of the shaped material, and finally rolled to prepare a stress luminous carpet.

Specifically, the polyethylene is low density polyethylene. Before the step of heating and melting the polyethylene, the polyethylene is subjected to a wind-selection process.

Further, the raw material for preparing EPE pearl cotton also includes an internal lubricant and an anti-shrinkage agent, and in the step of heating and melting the polyethylene, an internal lubricant and an anti-shrinking agent are also added for heating and melting. Specifically, the internal lubricants include low molecular weight polypropylene and polyethylene waxes. Further, the internal lubricant is a mixture of low molecular weight polypropylene and polyethylene wax. In one embodiment, the mass ratio of low molecular weight polypropylene and polyethylene wax is 1:1. It can be understood that in the foaming agent, the mass ratio of low molecular weight polypropylene and polyethylene wax is not limited to 1:1, and can also be other ratios commonly used in the art, which will not be repeated here. Low molecular weight polypropylene is a crystalline waxy or soft waxy solid with a density of 0.89, which is obtained by cracking high molecular weight polypropylene by thermal cracking. In one embodiment, the low molecular weight polypropylene has a molecular weight of 3000-4000.

In one of these embodiments, the anti-shrinkage agent is a monoglyceride.

In one of the embodiments, the step of heating and melting the polyethylene is as follows: sequentially adding the raw materials in the order of the polyethylene, the internal lubricant and the anti-shrinkage agent, and then heating and stirring to melt. In one of the embodiments, under the condition that the rotation speed is 100r/min, the clockwise stirring and the counterclockwise stirring are alternately performed, each 1min, and the longest stirring time does not exceed 10min. It can be understood that the above-mentioned parameters such as rotating speed and stirring time are not limited to the above-mentioned values, and can also be adjusted according to the amount of raw materials, etc., which are common knowledge in the art, and will not be repeated here.

Blowing agents include ether and butane. Further, the blowing agent is a mixture of diethyl ether and butane. In one embodiment, the mass ratio of ether and butane is 2:1. It can be understood that, in the foaming agent, the mass ratio of diethyl ether and butane is not limited to 2:1, and can also be other ratios commonly used in the art, which will not be repeated here.

The specific step of adding a foaming agent to foam is as follows: mixing the polyethylene, the internal lubricant and the anti-shrinkage agent by stirring and mixing the material and the foaming agent in a foaming machine and stirring evenly. The processing time of the foaming machine shall not exceed 45min. It can be understood that the parameters in the above-mentioned transfoaming process, such as time, etc., can be adjusted according to the amount of raw materials, etc., which are common knowledge in the art, and will not be repeated here.

Specifically, in terms of parts by mass, the raw materials for preparing EPE pearl cotton include 70 to 90 parts of polyethylene, 5 to 10 parts of antistatic agent, 1 to 5 parts of foaming agent, and 2 to 6 parts of internal lubricant And 2 to 8 parts of anti-shrinkage agent. In one embodiment, the raw materials for preparing EPE pearl cotton include 80 parts of polyethylene, 8 parts of antistatic agent, 3 parts of foaming agent, 4 parts of internal lubricant and 5 parts of anti-shrinkage agent.

Further, the mass ratio of polyethylene, antistatic agent, foaming agent, internal lubricant and anti-shrinkage agent is (70～90):(5～10):(1～5):(2～6):( 2 to 8). For example, the mass ratio of polyethylene, antistatic agent, foaming agent, internal lubricant and antishrinkage agent is 80:8:3:4:5, 82:5:3:5:5, 85:2:3: 5:5 etc. Further, the mass ratio of polyethylene, antistatic agent, foaming agent, internal lubricant and anti-shrinkage agent is 80:8:3:4:5. It can be understood that the mass ratio of polyethylene, antistatic agent, foaming agent, internal lubricant and anti-shrinkage agent is not limited to the above-mentioned ratio, and can also be the ratio commonly used in the raw materials for preparing EPE pearl cotton in the art. This will not be repeated here.

Specifically, the steps such as extrusion, pulling and shaping, and winding in the preparation process of EPE pearl cotton can be commonly used steps in the field, and will not be repeated here. In addition, in the preparation process of EPE pearl cotton, other common auxiliary agents, such as nucleating agents (eg talc), flame retardants, etc., can also be added.

Specifically, the mass ratio of the stress luminescent material to the raw material for preparing the elastic plastic is (0.1-200):100. In one embodiment, the mass ratio of the stress luminescent material to the raw material for preparing the elastic plastic is 0.1:100, 0.4:100, 0.5:100, 1:100, 10:100, 20:100, 50:100, 100: 100, 150:100 or 200:100. The mass ratio of the stress luminescent material to the raw material for preparing the elastic plastic can be adjusted according to the actual need for brightness and cost. Further, the mass ratio of the stress luminescent material to the raw material for preparing the elastic plastic is (0.4-50):100. Furthermore, the mass ratio of the stress luminescent material to the raw material for preparing the elastic plastic is 1:250. Experiments show that under the above ratio conditions, the prepared stress luminescent carpet has better luminous brightness and reasonable cost.

The stress luminescent material is an inorganic stress luminescent material. Specifically, the stress luminescent material is selected from ZrO ₂ :Ti, ZnS:Mn, ZnS:Cu, ZnS:Cl, ZnS:Ag, ZnS:Te, SrAl ₂ O ₄ :Eu, SrAl ₂ O ₄ :Dy, SrMgAl ₆ O ₁₁ :Eu, _SrBaMgSi2O7 :Eu, _{Sr2MgSi2O7 : Eu} , _{Ca2MgSi2O7 : Eu} , _{Ca2MgSi2O7 : Dy} , _{CaYAl3O7 : Eu} , _{ZnGa2O4 :} Mn, MgGa ₂ O ₄ : Mn, Ca ₂ Al ₂ SiO ₇ :Ce, CaZnOS:Mn, CaZnOS:Tb, CaZnOS:Pr, CaZnOS:Sm, CaZnOS:Ho, CaZnOS:Dy, CaZnOS:Er, CaZnOS:Eu, CaZnOS-ZnS:Bi, CaZnOS-ZnS:Ag, CaZnOS-ZnS:Cu, CaZnOS-ZnS:Mn, CaZnOS-ZnS:Tb, CaZnOS-ZnS:Pr, CaZnOS-ZnS:Sm, CaZnOS-ZnS:Ho, CaZnOS- At least one of ZnS:Dy, CaZnOS-ZnS:Er, and CaZnOS-ZnS:Eu. Doping ions in the stress-emitting material are used to adjust the emission color of the stress-emitting material. Appropriate doping ions can be selected according to the emission color of the stress luminescent carpet to be prepared.

Further, the stress luminescent material is ZnS:Mn, ZnS:Cu, SrAl ₂ O ₄ :Eu, CaZnOS-ZnS:R, where R is Mn, Cu or Bi. The brightness of the above-mentioned stress luminescent material is better.

Specifically, the preparation method of the stress luminescent material adopts the high-temperature solid-phase sintering method commonly used in the art. For example, zinc sulfide, calcium carbonate, etc. and compounds containing doping ions are sintered at 600°C to 1400°C for 4h to 8h. In one of the embodiments, when the stress luminescent material is ZnS:Mn, the preparation process is as follows: ZnS and _MnCO are uniformly ground and mixed, and then under the protection of argon gas (purity 99.99%), the temperature is 1100 ° C conditions, calcined for 4h. The sintered product is naturally cooled to room temperature in a furnace to obtain ZnS:Mn. The above only lists a specific example for preparing the stress luminescent material, but it is not limited thereto.

In one of the embodiments, the raw material for preparing the stress luminescent carpet includes a stress luminescent material, polyethylene, an antistatic agent, a foaming agent, an internal lubricant and an anti-shrinkage agent. Among them, the stress luminescent material is ZnS- ^CaZnOS with brightness higher than 200cd/m2, the polyethylene is low molecular weight polyethylene, the antistatic agent is polyethylene oxide, the foaming agent is a mixture of ether and butane, and the internal lubricant is low A mixture of molecular weight polypropylene and polyethylene wax, the anti-shrinkage agent is monoglyceride. The ratio of the total mass of antistatic agent, polyethylene, foaming agent, anti-shrinkage agent and internal lubricant to the mass of stress luminescent material is 250:1, polyethylene, antistatic agent, foaming agent, internal lubricant and anti- The mass ratio of shrinkage agent is 80:8:3:4:5.

Traditional luminous carpets mainly include: roads paved with fluorescent stone passive light-emitting, LED electroluminescent screen carpets, solar tempered glass display roads, various types of long afterglow phosphor light-emitting roads, etc. Among them, roads paved with fluorescent stone passive luminescent materials rely on absorbing solar energy during the day and releasing it at night. The luminescence cannot be controlled, resulting in light pollution, and the duration is limited, and the luminous intensity gradually decreases. Laying in a dark environment also has the problem of inconvenient installation and installation. LED electroluminescent screen carpets require power supply. The LED-based light-emitting ground has a complex structure, high cost, power loss and safety risks. Due to the limitation of the principle, it is not suitable for laying outdoors, and it is easily damaged and has high maintenance costs. Solar tempered glass shows high road costs and needs to be used in conjunction with LED lights. The energy utilization rate is low, and it cannot be laid on a large area. Among various types of long afterglow phosphors, the long afterglow phosphors have low light conversion efficiency, insufficient luminous brightness, and high cost of laying large areas. Therefore, the traditional light-emitting carpet has the problems of uncontrollable light emission, limited laying, energy consumption and high cost.

And the preparation method of the above-mentioned stress luminescent carpet has at least the following advantages:

(1) The above stress luminescent carpet is designed based on the principle of stress luminescence, using stress luminescent material, antistatic agent, polyethylene and foaming agent as raw materials, antistatic agent, polyethylene and foaming agent as the main materials for preparing EPE pearl cotton The raw material, polyethylene oxide can be used not only as a binder for the stress luminescent material, but also as an antistatic agent in the preparation process of pearl cotton, so that the stress luminescent material can be used in the preparation of EPE pearl cotton to obtain a stress luminescent carpet. And the use of stress luminescent material has the unique property that it can emit light by itself without external power supply under the action of external stress, and it is evenly combined with the environmentally friendly EPE pearl cotton material with high elasticity and wear resistance in the preparation process of pearl cotton, Combined with the operations such as stretching, extrusion, and winding in the original pearl cotton preparation process, the preparation process is simple. And compared with the traditional light-emitting carpet based on the LED principle, the self-luminous carpet based on the stress light-emitting principle will emit light when it is stepped on by the human body, and when the force disappears, the light will also disappear, no external energy consumption is required, and it is safe and environmentally friendly.

(2) All materials used in the preparation process of the above stress luminescent carpet are non-toxic, harmless, environmentally friendly and healthy, and the obtained stress luminescent carpet has a simple structure, is wear-resistant and impact-resistant, and has an extremely wide range of applications, not only in the floor passage of the indoor environment, It has huge application prospects in outdoor runway roads.

(3) The preparation method of the above-mentioned stress luminescent carpet applies the stress luminescent material in the preparation process of the EPE pearl cotton, and the cost of the EPE pearl cotton is low, so that the cost of the prepared stress luminescent carpet is low, and can be used for large-area laying .

The present invention also provides an embodiment of a stress luminescent carpet, which includes elastic plastic and a stress luminescent material doped in the elastic plastic. The raw materials for preparing the elastic plastic include a polymer matrix and an antistatic agent, and the antistatic agent includes polyethylene oxide. Specifically, the stress luminescent carpet is prepared by the preparation method of the stress luminescent carpet of the above embodiment. The stress luminescent powder is added to the preparation process of the elastic plastic, and it is obtained by combining the operations of extrusion, pulling and rolling in the original elastic plastic preparation process. The specific preparation process and the raw materials used are the same as those described in the preparation method of the stress luminescent carpet in the above-mentioned embodiment, and will not be repeated here.

The stress luminescent carpet described above has at least the following advantages:

(1) The above stress luminescent carpet is designed based on the principle of stress luminescence. The stress luminescent material has the unique property of being able to emit light by itself without external power supply under the action of external stress, and uses polyethylene oxide as a bridge, which has high elasticity and The wear-resistant and environmentally friendly EPE pearl cotton material is evenly combined in the preparation process of the pearl cotton. Compared with the traditional luminous carpet based on the LED principle, the self-luminous carpet based on the stress luminescence principle requires no external energy and zero energy consumption.

(2) The raw materials for the preparation of the above stress luminescent carpets are all non-toxic, harmless, environmentally friendly and healthy, and there is no safety problem.

(3) The above stress luminescent carpet combines the stress luminescent material with EPE pearl cotton, which makes the stress luminescent carpet simple in structure and has the advantages of wear resistance and impact resistance of EPE pearl cotton. , It has huge application prospects in outdoor runway roads.

The following is the specific embodiment part:

Example 1

The ratio of raw materials of the stress luminescent carpet of the present embodiment is as follows:

In parts by mass, the raw materials for preparing the stress luminescent carpet include: 0.4 part of the stress luminescent material ZnS:Mn, 8 parts of polyethylene oxide, 80 parts of low-density polyethylene, 2 parts of ether, 1 part of butane, and 2 parts of low molecular weight polypropylene. 2 parts of polyethylene wax and 5 parts of monoglyceride.

The preparation process of the stress luminescent carpet of the present embodiment is as follows:

(1) First, dissolve polyethylene oxide with cold water to make a 0.5 mol/L aqueous solution, then add it to ZnS:Mn, stir until fully mixed, and then obtain a mixed solution of ZnS:Mn and polyethylene oxide.

(2) The low-density polyethylene particles are subjected to air-selection treatment, and then added to the pearl cotton in the order of low-density polyethylene, internal lubricant (low molecular weight polypropylene and polyethylene wax) and anti-shrinkage agent (monoglyceride). The pellet automatic feeder, feeder and anti-shrinkage agent system in the production system are heated and melted, and the rotation speed is adjusted at 100r/min, and clockwise stirring and counterclockwise stirring are alternately performed, each 1min, and the longest stirring time does not exceed For 10 minutes, the low-density polyethylene, the internal lubricant and the anti-shrinkage agent are fully mixed evenly.

(3) Add a foaming agent to the material processed from the uniformly mixed material in step (2), turn on the automatic foaming machine, and continue to process and mix evenly. The processing time of the foaming machine shall not exceed 45min.

(4) extruding the uniformly mixed material in step (3), using a tractor to draw and shape after extrusion, then adding the mixed solution obtained in step (1) to form an antistatic film on the surface of the material after shaping, and finally collecting roll. After the temperature is stabilized, use a metal cutting knife to cut the plate into a rectangle of 100cm×50cm×1cm to step on the stress luminescent carpet.

Example 2

The raw material ratio of the stress luminescent carpet of Example 2 is as follows:

In parts by mass, the raw materials for preparing the stress luminescent carpet include: 1 part of stress luminescent material ZnS:Cu, 8 parts of polyethylene oxide, 80 parts of low-density polyethylene, 2 parts of diethyl ether, 1 part of butane, and 2 parts of low molecular weight polypropylene. 2 parts of polyethylene wax and 5 parts of monoglyceride.

The preparation process of the stress luminous carpet of Example 2 and the preparation process of the stress luminous carpet of Example 1 are as follows:

(1) The low-density polyethylene particles are subjected to air-selection treatment, and then added to the pearl cotton in the order of low-density polyethylene, internal lubricant (low molecular weight polypropylene and polyethylene wax) and anti-shrinkage agent (monoglyceride). In the automatic particle feeding machine, feeding machine and anti-shrinkage agent system in the production system, heat and melt, then add stress luminescent material, adjust the speed at 100r/min, alternate clockwise stirring and counterclockwise stirring, 1min each time , The longest stirring time is not more than 10min, so that the low density polyethylene, internal lubricant, anti-shrinkage agent and stress luminescent powder are fully mixed evenly.

(3) Add a foaming agent to the material processed from the uniformly mixed material in step (2), turn on the automatic foaming machine, and continue to process and mix evenly. The processing time of the foaming machine shall not exceed 45min.

(4) Extruding the uniformly mixed material in step (3), using a tractor to draw and shape after extrusion, then adding an antistatic agent to form an antistatic film on the surface of the shaped material, and finally winding. After the temperature is stabilized, use a metal cutting knife to cut the plate into a rectangle of 100cm×50cm×1cm to step on the stress luminescent carpet.

Example 3

The raw material ratio of the stress luminescent carpet of Example 3 is as follows:

In parts by mass, the raw materials for preparing the stress luminescent carpet include: 200 parts of stress luminescent material CaZnOS-ZnS:Mn, 8 parts of polyethylene oxide, 80 parts of low-density polyethylene, 2 parts of diethyl ether, 1 part of butane, low molecular weight polyethylene 2 parts of propylene, 2 parts of polyethylene wax and 5 parts of monoglyceride.

The preparation process of the stress luminescent carpet of Example 3 is the same as that of the stress luminous carpet of Example 1, and will not be repeated here.

Example 4

The raw material ratio of the stress luminescent carpet of Example 4 is as follows:

In parts by mass, the raw materials for preparing the stress luminescent carpet include: 200 parts of stress luminescent material CaZnOS:Mn, 8 parts of polyethylene oxide, 80 parts of low density polyethylene, 2 parts of ether, 1 part of butane, and 2 parts of low molecular weight polypropylene , 2 parts of polyethylene wax and 5 parts of monoglyceride.

The preparation process of the stress luminescent carpet of Example 4 is the same as the preparation process of the stress luminous carpet of Example 2, and will not be repeated here.

The following is the test part:

The stress luminescent carpets prepared in Examples 1 to 4 were tested for luminous brightness and luminous intensity. The test shows that the luminous brightness and luminous intensity are proportional to the filling amount of the stress luminescent material, and have a linearly enhanced relationship with the pressure. Specifically, for example, when the stress luminescent carpet of Example 3 is under a pressure of 1000N, the luminous brightness of the stress luminescent carpet is tested to be above 100cd/m ² , which can meet the needs of auxiliary lighting.

The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity, all possible combinations of the technical features in the above-described embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be regarded as the scope described in this specification.

The above-mentioned embodiments only represent several embodiments of the present invention, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the invention patent. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can also be made, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims (14)

1. A preparation method of a stress luminous carpet is characterized by comprising the following steps: the stress luminescent carpet is prepared by adding a stress luminescent material in the preparation process of the elastic plastic, wherein the raw materials for preparing the elastic plastic comprise a high-molecular matrix and an antistatic agent, and the antistatic agent comprises polyethylene oxide.

2. The method for preparing a stress luminescence carpet of claim 1, wherein the elastic plastic is EPE pearl cotton, the polymer matrix comprises polyethylene, and the raw materials for preparing the elastic plastic further comprise a foaming agent.

3. The method of claim 2, wherein the step of adding the luminescent material during the process of preparing the elastic plastic comprises:

heating and melting the polymer matrix, and then mixing the polymer matrix with the stress luminescent material and the foaming agent for foaming;

and extruding and drawing the foamed material for shaping, and then adding the antistatic agent to form an antistatic film on the surface of the shaped material.

4. The method of claim 2, wherein the step of adding the luminescent material during the process of preparing the elastic plastic comprises:

mixing the antistatic agent and the stress luminescent material in water to prepare a mixed solution;

heating and melting the polymer matrix, and then mixing the polymer matrix with the foaming agent for foaming;

and extruding and drawing the foamed material for shaping, and then adding the mixed solution to form an antistatic film containing the stress luminescent material on the surface of the shaped material.

5. The method for preparing a stress luminescence carpet according to any one of claims 2 to 4, wherein the raw materials for preparing the elastic plastic further comprise an internal lubricant and an anti-shrinkage agent, and in the step of heating and melting the polymer matrix, the internal lubricant and the anti-shrinkage agent are further added for heating and melting.

6. The method of claim 5, wherein the internal lubricant comprises low molecular weight polypropylene and polyethylene wax.

7. The method for preparing a stress luminescence carpet of claim 5, wherein the raw materials for preparing the EPE pearl cotton comprise, by mass, 70-90 parts of polyethylene, 5-10 parts of an antistatic agent, 1-5 parts of a foaming agent, 2-6 parts of an internal lubricant and 2-8 parts of an anti-shrinkage agent.

8. The method of any one of claims 2-4 and 6-7, wherein the foaming agent comprises ethyl ether and butane.

9. The method for preparing a stress luminescence carpet according to any one of claims 1 to 4 and 6 to 7, wherein the mass ratio of the stress luminescence material to the raw material for preparing the elastic plastic is (0.1-200): 100.

10. The method for preparing the stress luminescence carpet of claim 9, wherein the mass ratio of the stress luminescence material to the raw material for preparing the elastic plastic is (0.4-50): 100.

11. The method of any one of claims 1-4, 6-7 and 10, wherein the stress luminescence material is selected from ZrO₂:Ti、ZnS:Mn、ZnS:Cu、ZnS:Ag、SrAl₂O₄:Eu、SrMgAl₆O₁₁:Eu、SrBaMgSi₂O₇:Eu、Sr₂MgSi₂O₇:Eu、Ca₂MgSi₂O₇:Eu、Ca₂MgSi₂O₇:Dy、CaYAl₃O₇:Eu、ZnGa₂O₄:Mn、MgGa₂O₄:Mn、Ca₂Al₂SiO₇At least one of Ce, CaZnOS: Mn, CaZnOS: Tb, CaZnOS: Pr, CaZnOS: Sm, CaZnOS: Ho, CaZnOS: Dy, CaZnOS: Er, CaZnOS: Eu, CaZnOS-ZnS: Bi, CaZnOS-ZnS: Ag, CaZnOS-ZnS: Cu, CaZnOS-ZnS: Mn, CaZnOS-ZnS: Tb, CaZnOS-ZnS: Pr, CaZnOS-ZnS: Sm, CaZnOS-ZnS: Ho, CaZnOS-ZnS: Dy, CaZnOS-ZnS: Er and CaZnOS-ZnS: Eu.

12. The method of claim 11, wherein the luminescent material is ZnS: Mn, ZnS: Cu, SrAl₂O₄Eu, CaZnOS-ZnS, R is Mn, Cu or Bi.

13. The stress luminescent carpet is characterized by comprising elastic plastic and a stress luminescent material doped in the elastic plastic, wherein raw materials for preparing the elastic plastic comprise a high polymer matrix and an antistatic agent, and the antistatic agent comprises polyethylene oxide.

14. The stress luminescence carpet of claim 13, wherein the stress luminescence carpet is prepared by the method for preparing the stress luminescence carpet of any one of claims 1 to 12.