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Pyroelectric material and its manufacturing method, and high-efficiency pyroelectric fiber made therefrom

A manufacturing method and pyroelectric technology, which can be applied in fiber processing, rayon manufacturing, fiber chemical characteristics, etc., can solve the problems of unsatisfactory infrared excitation and absorption efficiency, unable to generate resonance effect, etc., and achieve extensive and effective practical value. , Stable pyroelectric characteristics, the effect of increasing the cumulative density

Active Publication Date: 2017-10-13
郑安志 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, although the wavelength range emitted by tourmaline covers the vibration frequency range produced by the human body or organisms, its excitation frequency for light waves is still slightly different from the oscillation frequency of human infrared photon electromagnetic waves, so it cannot produce an efficient resonance effect. The excitation and absorption efficiency of the infrared rays produced by it is still not ideal

Method used

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  • Pyroelectric material and its manufacturing method, and high-efficiency pyroelectric fiber made therefrom
  • Pyroelectric material and its manufacturing method, and high-efficiency pyroelectric fiber made therefrom
  • Pyroelectric material and its manufacturing method, and high-efficiency pyroelectric fiber made therefrom

Examples

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Effect test

specific example 1

[0088] Take the mineral material mixed with agate and quartzite and refine it into fragments with an average diameter of about 10 μm as the raw material of the pyroelectric substrate. The average weight of each piece of pyroelectric substrate is used to estimate the The quantity of the pyroelectric substrate, and then take the ratio of 10 gold nanoparticles and 10 carbon nanotubes corresponding to an average piece of pyroelectric substrate, and weigh specific amounts of the aforementioned three raw materials and mix them into a preset mixture, and then apply 10 to the mixed premix 8 The AC high voltage electric field of V / m is continuously applied for 20 minutes to carry out the polarization, and then the premix polarized by the high voltage electric field is dispersed and danced by an ultrasonic oscillator, so that the premix can be well mixed. In addition, the ultrasonic equipment used in this specific example uses a high-frequency pulse oscillator to generate high-frequenc...

specific example 2

[0095] Get pyroelectric material A prepared according to the preparation method of and polyethylene terephthalate (Polyethylene terephthalate, be called for short PET) master batch and mix into a composite raw material, the mixing ratio is 98.7 parts by weight Add 1.3 parts by weight of pyroelectric material A to the PET masterbatch (that is, the addition of pyroelectric material A in the composite raw material is 1.3wt%), melt and spin into fibers according to the existing spinning process, The prepared fibers were then woven into cloth, and a cloth piece of about 3 cm×5 cm was cut out as a test sample a. Observe the appearance of the produced fiber with a microscope, and send the sample a made of the fiber to the National Textile Products Quality Supervision and Inspection Center of the People's Republic of China, and carry out the test of the negative ion production concentration of the original sample and after washing 50 times. The method standard is CTTC F024-2007.

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specific example 3

[0100] Take the pyroelectric material A prepared by the method described in , and prepare it into test solutions a1, a2 and a3 with a concentration of 50 μg / ml, 100 μg / ml and 200 μg / ml respectively, and take silica ( That is, nano-silicon chips capable of inhibiting free radicals) were prepared as test solutions with a concentration of 50 μg / ml and 100 μg / ml, as a control test group. After the aforementioned test solution was cultured for 24 hours with the mouse mononuclear macrophage RAW264.7 induced by 0.01 μg / ml lipopolysaccharide (LPS for short), it was determined by western blot. The expression of inducible nitric oxide synthase (inducible nitric oxide synthase, referred to as iNOS) and β-actin (β-actin). In order to distinguish the effect of LPS, a blank test group 1 without LPS-induced macrophages and a blank test group 2 with LPS-induced macrophages without adding any test solution were set up. The culture environment and conditions were cultured, and the expression o...

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Abstract

The invention provides a pyroelectric material, a manufacturing method thereof, and a high-efficiency pyroelectric fiber made therefrom. The pyroelectric material includes a pyroelectric substrate. The pyroelectric substrate is polarized and magnetically obtained by applying a high voltage electric field to polarize it. By first screening out the pyroelectric substrate whose vibration frequency is close to the object of application, and then subjecting it to high-voltage electric field polarization treatment, the pyroelectric substrate has spontaneous polarization. When the pyroelectric material is applied, because the vibration frequency of the dipole is close to the vibration frequency of an application object, a resonance effect is generated, which increases the vibration amplitude, and the electric moment is proportional to the square of the amplitude, so the pole is enhanced. The chemical strength can significantly improve the pyroelectric effect and form a high-efficiency pyroelectric material.

Description

technical field [0001] The invention relates to a pyroelectric material, its manufacturing method and application products, in particular to a pyroelectric material with high-efficiency pyroelectric effect, its manufacturing method, and the high-efficiency pyroelectric fiber made therefrom. Background technique [0002] The pyroelectric effect refers to the phenomenon that the polarization intensity changes with the temperature and shows the phenomenon of charge release. The substance that can produce the pyroelectric effect is called the pyroelectric material. The pyroelectric material belongs to the category of piezoelectric materials. For crystals with a symmetrical center and a special polar direction, although there are thousands of materials with pyroelectric effect, only a dozen are widely used, such as glycine sulfate (TGS) crystal and its isomorphic crystal, strontium barium niobate (SBN) crystals, lithium sulfate (LSH) and lithium tantalate (LiTaO 3 ) crystals, et...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L37/02D01F6/92D01F1/10D01D5/30D01D5/00
Inventor 郑孟松
Owner 郑安志
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