161 results about "Hydroquinone" patented technology

The invention discloses a method for detecting antioxidants and polyphenols in food by constructing a colorimetric sensing array based on monatomic iron nano-enzyme, and belongs to the field of nanotechnology and colorimetric sensing. The traditional monatomic nano enzyme shows limited enzyme-like activity and substrate specificity, and is difficult to meet the comprehensive requirements of detecting various antioxidants and polyphenols in food. In the research, a novel nano-enzyme system (sdsFeN (at) G) of monatomic iron nano-enzyme is developed. The SdsFeN (at) G shows excellent enzymatic activity, and a three-channel colorimetric sensing array is constructed by utilizing inhibition of different antioxidants and polyphenols on oxidation of three chromogenic substrates, so that simple, convenient and reliable identification and detection of five substances (tert-butylhydroquinone, butylated hydroxyanisole, propyl gallate, catechol and hydroquinone) in food are realized.

The invention discloses a synthetic method for preparing corresponding hydroquinone through normal-pressure hydrogenation of quinone. Hydroquinone is an important compound, widely exists in natural products with biological activity, and is an important precursor for synthesizing various medicines, agricultural chemicals, polymers and functional materials. The method for reducing the quinone compound into hydroquinone is a simple and direct method. Although many reducing agents, such as SnCl2, Zn, Fe, Na2S2O4, NaBH4, polymethylhydrosiloxane (PMHS), have been used for this conversion, these processes are often affected by the use of stoichiometric or excess reagents, violent reaction conditions, and the formation of large amounts of waste. The hydrogenation reaction of quinone with H2 is obviously the most ideal way to achieve this conversion because it has high atomic efficiency and environmental friendliness. However, hydrogenation often needs high-pressure equipment or high temperature, so that the application potential is greatly limited. Accordingly, we we wish to exhibit a process for the hydrogenation of quinone to hydroquinone under atmospheric pressure.

The invention relates to the technical field of silicone rubber, in particular to high-temperature-resistant flame-retardant silicone rubber, a preparation method thereof and a cable, the high-temperature-resistant flame-retardant silicone rubber comprises a gradient layer material composed of a surface layer material, a transition layer material and a core layer material, and the surface layer material comprises methyl vinyl silicone rubber, superfine furnace black, calcium stannate, polyacrylonitrile aerogel and a flame-retardant premix; the transition layer material comprises methyl vinyl silicone rubber, superfine furnace carbon black, spandex fibers, polyarylester, calcium stannate and a flame-retardant premix; the core layer material is prepared from methyl vinyl silicone rubber, superfine furnace black, aramid fiber, polyarylester, phthalonitrile resin and 2-mercaptobenzothiazole zinc salt; wherein the flame-retardant premix is prepared from hydroquinone bis (diphenyl) phosphate, phenyl ethyl aluminum phosphinate and zinc hypophosphite according to the weight ratio of (6 to 10): (2 to 4): (1 to 3); the problems that an existing material is prone to aging in an extreme environment, the flame retardant effect is poor, and the mechanical property is degraded are effectively solved.

The present invention relates to the technical field of anode materials for lithium batteries, and specifically discloses a resin-based self-activated porous carbon material, a preparation method thereof and an application. The preparation method includes the following steps: carrying out a polycondensation reaction on hydroquinone monomers, hydroquinone monomers containing thioether bonds, formaldehyde or polyaldehydes, and catalyst A to obtain a phenolic resin; carbonizing the phenolic resin to obtain the resin-based self-activated porous carbon material. The present invention synthesizes a phenolic resin by using hydroquinone monomers containing thioether bonds, thereby introducing thioether alkane side chains into the phenolic resin. During the carbonization process of the phenolic resin, since thioether bonds are extremely easy to decompose to generate gas at high temperature, pores can be formed in the phenolic resin skeleton. The prepared resin-based self-activated porous carbon material has a high specific surface area and pore volume. By controlling the structure and modification ratio of the thioether alkane side chains, controllable design of the internal pore structure of the resin-based porous carbon can be achieved, and an ideal pore distribution can be obtained.

The invention belongs to the technical field of cosmetics, and particularly relates to whitening and freckle-removing essence oil and a preparation method thereof. According to the invention, adamantane formyl is introduced into an alpha-arbutin benzene ring to obtain the adamantane formyl modified alpha-arbutin derivative, so that the compatibility of alpha-arbutin and base oil is enhanced; the alpha-arbutin is prevented from being converted into hydroquinone by utilizing the large steric effect of adamantane formyl, so that the safety of the whitening and freckle-removing essence oil is improved; the tranexamic acid is wrapped by the ceramide nano-emulsion, so that the skin allergy risk caused by ingestion of the tranexamic acid is reduced; the ceramide nano-emulsion and tranexamic acid act together to repair skin collagenous fibers, block melanin transfer and inhibit melanin synthesis; trilinolein and glabridin are catalyzed by lipase to form a compound, so that the molecular compatibility and photo-thermal stability of glabridin are enhanced; glycerin promotes transdermal absorption of glabridin and enhances the efficacy of the whitening and freckle-removing essence oil.

The invention discloses a self-expanding water shutoff material for tunnels and a preparation method of the self-expanding water shutoff material, and belongs to the field of polymer composite materials. Modified polyurethane in the self-expanding water shutoff material is prepared through vacuum dehydration of polyether glycol, chain extension of diisocyanate, reaction of a carboxyl-containing chain extender and acetone, dropwise addition and grafting of nano silicon dioxide dispersion liquid, neutralization of triethylamine and reduced pressure distillation. The modified epoxy acrylate is prepared by mixing epoxy resin and methyl methacrylate, stirring a silane coupling agent and an absolute ethyl alcohol solution, initiating polymerization by benzoyl peroxide, dropwise adding nano-montmorillonite dispersion liquid for reaction, stirring acrylic acid and a polymerization inhibitor hydroquinone, and performing reduced pressure treatment. The material formula comprises the two modified macromolecules, super absorbent resin, a filler, a plasticizer, an initiator, a cross-linking agent, a defoaming agent and deionized water. The prepared material has the advantages of high expansion rate, excellent water resistance, strong adhesive property and controllable curing time, and is suitable for the scenes of tunnel water inrush plugging, lining crack repairing, water-rich fault zone advanced grouting and the like.

The present invention relates to urease inhibitor compositions containing tert-butylhydroquinone and optionally an additive component to enhance the inhibitory properties of tert-butylhydroquinone. Further described are uses of these compositions in agriculture to increase nutrient uptake and inhibit urease enzyme activity.

The present invention relates to the mono-saponification of diesters of 2,3,5-trimethylhydroquinone by a base allowing an advantageous synthesis of esterified alpha-tocopherol. The mono-saponification has been demonstrated to occur very selectively at very high yield.

The invention discloses whitening essence and a preparation method thereof, and belongs to the field of skin care products. The five-phase mixture comprises hydroquinone, tretinoin, fluocinonide, glabridin and vitamin C derivatives; the phase A is prepared from water, PCA sodium, butanediol, sodium hyaluronate and 1, 2-hexanediol; the phase B is prepared from ascorbyl glucoside, arginine, a skin conditioner, chlorphenesin, hydroxyethyl piperazine ethanesulfonic acid, alpha-arbutin, nicotinamide, dipotassium glycyrrhizinate and a skin conditioning and relieving agent; a phase C: 1, 3-propylene glycol and a preservative; a phase D: PEG-40 hydrogenated castor oil and rose oil; and a phase E: water, 1, 2-pentanediol, a peppermint leaf extract and glutathione. Compared with the existing whitening essence in the market, the whitening essence prepared by the invention can be applied to different skin types, and can be absorbed by different skin types when acting on different skin types, so that the whitening essence prepared by the invention can be used for whitening different skin types when being applied to users with different skin types, and the whitening essence can be used for whitening different skin types. The whitening and moisturizing effects are good.

The invention provides a block copolymer toughening-based polyether-ether-ketone material and a preparation method thereof, and relates to the technical field of high polymer materials, the method is characterized in that a block copolymer PAEK-B with a specific sequence structure is synthesized by accurately controlling a ternary block copolymerization reaction of hydroquinone, 4, 4 '-difluorobenzophenone and biphenol, and the block copolymer PAEK-B with a specific sequence structure is obtained. And then the mixture is subjected to melt blending with PEEK, so that the toughness of the PEEK is effectively improved, the mechanical property is improved, and meanwhile, the original processing temperature is kept unchanged.

The invention provides an acrylic polyurethane coating and a preparation method thereof, and belongs to the technical field of coating compositions.The preparation method comprises the following steps that hexylpolyurethane based on non-isocyanate sorbitol, methacrylic anhydride, p-toluenesulfonic acid and hydroquinone monomethyl ether are mixed and heated for a reaction, ethyl acetate is added for mixing, washing, drying, filtering and vacuum concentration are performed, and the acrylic polyurethane coating is obtained. The bio-based polyurethane acrylate is obtained; the preparation method comprises the following steps: mixing ZG nanoparticles, methylbenzene, 3-(methacryloyloxy) propyltrimethoxysilane and hydroquinone monomethyl ether, heating, stirring, centrifuging and washing to obtain functionalized ZG; and fully mixing the bio-based polyurethane acrylate, the photoinitiator, the acrylate-based single-terminated reactive polysiloxane, the reactive diluent and the functionalized ZG to obtain the acrylic polyurethane coating. The coating can improve the curing speed, and has hydrophobic and oleophobic properties and corrosion resistance at the same time.

The invention relates to the technical field of non-woven materials, in particular to a polyether-ether-ketone resin special material for melt-blown non-woven fabric, a preparation method of the polyether-ether-ketone resin special material, the melt-blown non-woven fabric and a manufacturing method of the melt-blown non-woven fabric. The preparation method of the special material for the polyether-ether-ketone resin comprises the following steps: in an inert gas atmosphere, heating a first mixture obtained by mixing 4, 4 '-difluorobenzophenone and dimethylacetamide to a first temperature to obtain a first mixture at the first temperature; sequentially adding alkali carbonate and hydroquinone into the first mixture at the first temperature, then performing sectional heating treatment, and performing washing treatment to obtain polyether-ether-ketone resin; the polyether-ether-ketone resin is placed in a screw extruder to be subjected to melt extrusion granulation, and the polyether-ether-ketone resin is obtained after filtering treatment. The polyether-ether-ketone resin special material with ultrahigh melt flowability and low apparent viscosity can be prepared by the method provided by the invention, and can meet the requirements of manufacturing melt-blown non-woven fabrics.

The invention provides a preparation method of polyaryletherketone resin for a 3D printing material, and relates to the technical field of high polymer materials, the polyaryletherketone resin is prepared by taking 4, 4-difluorobenzophenone, hydroquinone, biphenol and bisphenol fluorene as reaction raw materials, taking diphenyl sulfone as a solvent and taking carbonate of alkali metal as a catalyst through nucleophilic polycondensation reaction; the material has the advantages of high melting point, high glass transition temperature, high thermal decomposition temperature and low crystallization speed. According to the preparation method provided by the invention, a certain amount of bisphenol fluorene is added at the later stage of a polymerization reaction, so that on one hand, the introduction of a fluorenyl structure can further destroy the regularity of a molecular chain and reduce the crystallinity and the crystallization speed; on the other hand, the fluorenyl structure can be used for hindering chain segment movement, and the resin melting point can be increased.

Provided is a styrene-based resin composition that has excellent hue and transparency. The styrene-based resin composition according to the present invention contains a styrene-based resin (A) and a component (B). The styrene-based resin (A) is a copolymer including a styrene-based monomer unit (a1) and a (meth)acrylic acid-based monomer unit (a2). The component (B) includes 4-methoxyphenol or hydroquinone. A specific amount of the component (B) is included.

The invention discloses a preparation method of a fuel cell composite board, which comprises the following steps: weighing benzenediol, formaldehyde and deionized water in a three-neck flask, adding a transition metal compound as a catalyst, placing the three-neck flask in a water bath kettle, and heating to a stepped temperature; adding a predetermined mass of acetone, soaking for 1-3 days, replacing water, and drying to obtain an organic aerogel solid; placing the organic aerogel solid in a high-temperature tubular furnace, heating, keeping for 12-48 hours, cooling to obtain a carbon aerogel sample, and grinding the aerogel to obtain carbon aerogel powder; weighing the carbon aerogel powder and the resin powder, and placing the carbon aerogel powder and the resin powder in a molding press to obtain a molded bipolar plate, so as to obtain a carbon aerogel composite plate; the composite material has the advantages of high conductivity, high volume density, high mechanical property, high thermal stability and the like.

The invention provides an organic-inorganic multifunctional compound fertilizer applicable to tea trees. The organic-inorganic multifunctional compound fertilizer applicable to the tea trees is prepared from the following raw materials in parts by mass: 30 parts of tea tree pruning branch organic fertilizer, 25 to 35 parts of urea, 15 to 20 parts of monopotassium phosphate, 10 to 15 parts of potassium sulfate, 1 part of nitrogen nitrification inhibitor dicyandiamide and 0.5 part of hydroquinone. The organic-inorganic multifunctional compound fertilizer applicable to the tea trees, provided by the invention, has the advantages that the organic-inorganic multifunctional compound fertilizer can be developed on the basis of nutrient requirements and quality formation rules of the tea trees, scientific and effective utilization of pruned tea trees and a nutrient coupling effect of biochar are realized, slow release of fertilizer nutrients is realized, and the yield of the tea trees is increased. Therefore, the nutrient utilization efficiency is improved, the growth of the tea trees is promoted, and the quality is improved.

The present invention discloses a high-efficiency demulsifier for oily sludge and a preparation method thereof, belonging to the technical field of sludge treatment. Octylphenol polyoxyethylene ether is dissolved in water, stirred and then transferred to a flask. The temperature is raised to 60 °C, and an aqueous solution of peroxide is added. Under nitrogen protection, the temperature is raised to 80 °C, and methyl methacrylate, butyl acrylate and an auxiliary agent are added. After maintaining the temperature for 30-60 minutes, the temperature is lowered to 60 °C, and an aqueous solution of hydroquinone is added. After maintaining the temperature for 30 minutes, a primary demulsifier is obtained; the primary demulsifier, sodium silicate and water are stirred to prepare a high-efficiency demulsifier for oily sludge; there is a chemical interaction between the auxiliary agent containing a quaternary ammonium salt structure and methyl methacrylate and butyl acrylate, and graft crosslinking occurs, and then they act synergistically to jointly improve the demulsification effect of the demulsifier. In addition, due to the combined action of raw materials such as the non-ionic demulsifier - octylphenol polyoxyethylene ether, the inorganic demulsifier - sodium silicate and hydroquinone, the demulsifier for sludge in the present invention has an efficient and stable demulsification effect.

The invention provides a production method of 2, 3, 5-trimethylhydroquinone diester, which comprises the following steps: carrying out rearrangement reaction on 2, 6, 6-trimethyl-cyclohexyl-2-ene-1, 4-diketone and an acylating agent in a tubular reactor filled with a catalyst to obtain the 2, 3, 5-trimethylhydroquinone diester, all reaction parameters in the tubes of the tubular reactor meet the relationship shown in the formula 1. The production method has the advantages of high production efficiency, small corrosion to equipment and simple subsequent treatment process, and is suitable for wide popularization and application.

A use of a compound as shown in structural formula I or a hydroquinone form, (C1-C4) quinone form, stereoisomer, hydrate, deuterated product, ester, solvate, metabolite, and pharmaceutically acceptable salt or prodrug thereof in preparation of a drug for treating bacterial metabolism-related diseases.

The present invention provides a method for preparing a highly transparent and highly flexible modified polylactic acid, and relates to the technical field of organic polymer compounds. A method for preparing a highly transparent and highly flexible modified polylactic acid includes the steps of preparing a PLA-co-PVL copolymer solution, purifying the PLA-co-PVL copolymer, synthesizing an ATEC-HEA complex, and obtaining a modified polylactic acid composite material; the preparation of the PLA-co-PVL copolymer solution comprises the steps of uniformly mixing L-lactide and δ-valerolactone to obtain a mixed solution, adding a catalyst and an initiator to the mixed solution, and reacting to obtain a PLA-co-PVL copolymer solution; the catalyst is Sn(Oct)2, and the initiator is 1,4-butanediol; the synthesis of the ATEC-HEA complex comprises raw materials including acetyl citrate triethyl, hydroxyethyl acrylate, p-toluenesulfonic acid, and hydroquinone; the preparation of the modified polylactic acid composite material comprises raw materials including a PLA-co-PVL solid copolymer, an ATEC-HEA complex, and an antioxidant. The modified polylactic acid of the present invention has high light transmittance and excellent flexibility.

The invention discloses a surface strengthening treatment method for an inner hole of a main connecting rod of a piston type aero-engine. The surface strengthening treatment method comprises the following steps that S100, the main connecting rod is subjected to oil removal treatment; s200, performing waxing treatment on the non-plated surface on the main connecting rod to form an insulating protection layer; s300, weak corrosion activation treatment is conducted on an inner hole of the main connecting rod; s400, a tool clamp is used for installing and hanging the main connecting rod, then a lead and tin plating solution is poured into an inner hole of the main connecting rod for out-groove electroplating treatment, and the lead and tin plating solution comprises 110 g / L to 275 g / L of lead fluoroborate, 30 g / L to 65 g / L of stannous fluoroborate, 1 g / L to 2 g / L of hydroquinone and 1.5 g / L to 2.0 g / L of oxhide gelatin; and S500, the main connecting rod is detached from the tool clamp and then subjected to wax removal and cleaning treatment, and then whether the lead-tin layer is qualified or not is checked. According to the surface strengthening treatment method for the inner hole of the main connecting rod of the piston type aero-engine, the uniformity of a plating layer can be improved, the tin content in a lead-tin layer is increased, and the wear-resisting and lubricating capacity is enhanced.

The application discloses an efficient treatment method of industrial waste salt, comprising the following steps: mixing the industrial waste salt with a certain proportion of functional particles, and performing microwave treatment; wherein the functional particles are composed of first functional particles and second functional particles; the first functional particles are selected from one or more of silicon carbide, diiron trioxide, titanium dioxide and zinc oxide; and the second functional particles are selected from one or more of 2,6-di-tert-butyl-p-cresol, hydroquinone, tert-butyl catechol and copper naphthenate. The functional particles used in the application have multiple functions such as microwave absorption, reaction catalysis, polymerization inhibition and antioxidation, etc. When the functional particles are mixed with the industrial waste salt and subjected to microwave irradiation, the organic and inorganic small molecules can be catalyzed to crack and generate gaseous small molecules, and meanwhile, the organic matters in the industrial waste salt can be prevented from polymerization, so that the increase of the content of organic polymers in the waste salt is avoided.

The application discloses a preparation method of monocyamine solution and belongs to the technical field of fine chemical industry. By optimizing the process conditions, especially adding new stabilizers of o-benzoquinone, 1,4-naphthoquinone and methylhydroquinone, the content of dicyandiamide in the monocyamine solution is reduced, and high-quality monocyamine with a concentration of 30% is produced at a lower temperature. The fine control technology of monocyamine low-temperature hydrolysis reaction developed by the application changes the prior art method, i.e. first hydrolyzing lime nitrogen in a hydrolysis kettle to produce monocyamine aqueous solution with a concentration of 18%, then concentrating through an evaporation system, and finally producing monocyamine finished product with a concentration of 30%. The application improves the product quality and reduces the product energy consumption through the "low-temperature one-step hydrolysis method" monocyamine production process without evaporation and concentration, so that the stable and green low-carbon production of high-grade monocyamine products is realized.

The invention relates to a photoresist material monomer, in particular to a preparation method of a benzenediol ester photoresist material monomer. The preparation method of the benzenediol acid ester photoresist material monomer comprises the following steps: taking benzenediol as a raw material, adding an alkaline reagent into a polar solvent under a low-temperature condition, dropwise adding an anhydride compound shown in a formula II in a temperature-controlled manner, and then carrying out a temperature-controlled reaction to obtain a benzenediol monoacrylate compound shown in a formula I. The invention also discloses a preparation method of the benzenediol acid ester photoresist material monomer. According to the invention, benzenediol and an anhydride compound are taken as raw materials, and the target benzenediol acid ester photoresist material monomer can be obtained with high selectivity and high yield through temperature control reaction in the presence of a polar solvent and under the condition of alkalescence.

The present invention discloses a compound hydroquinone emulsion and its preparation method and application, belonging to the technical field of medicine. The compound hydroquinone emulsion comprises active ingredients and a pharmaceutically acceptable carrier. The active ingredients comprise the following components calculated by weight percentage of the emulsion: 2-4% of hydroquinone or its water-soluble derivative, 0.5-5% of crisaborole, 0.01-0.05% of vitamin A, 1.5-7.5% of vitamin B6, and 0.2-3% of asiaticoside. The compound hydroquinone emulsion of the present invention has a high hydroquinone content and a high transdermal absorption rate, and has the advantages of small irritation, wide application range, the production workshop is not restricted by the workshop that must permit raw materials containing hormones, and low production cost, etc.

The application discloses a kind of saturated polyester copolymer and its preparation method and application, belong to polymer material technical field.The preparation raw material of saturated polyester copolymer provided by the application includes: compound a, compound b, compound c, polyol, catalyst;Still include polyacid and / or polyacid anhydride;Compound a is compound b is compound c is The structure component of carbon ring common carbon atom is introduced in saturated polyester copolymer in the application, i.e.compound a and compound b, can realize the more orderly distribution of space group in chain segment, not only the adhesion of various substrates is significantly improved, and coating shrinkage is significantly reduced, in addition, hydroquinone or similar hydroquinone structure is also introduced simultaneously, effectively improve the heat resistance of polyester chain segment, and the saturated polyester copolymer of the application is used to prepare in-mold injection decorating ink, can effectively meet the performance requirements of in-mold injection process.

The invention discloses an antibacterial moisture-permeable polyester material and a preparation method thereof, and belongs to the technical field of polyester materials. The antibacterial moisture-permeable polyester material is prepared from the following raw material components in parts by mass: 100 parts of antibacterial polyester, 4 to 8 parts of super absorbent resin, 0.4 to 0.6 part of antioxidant and 3 to 5 parts of porous filler, the antibacterial polyester is obtained by at least taking unsaturated dibasic acid monomers and polyol monomers as raw materials, butyl titanate as a catalyst and hydroquinone as a polymerization inhibitor, carrying out esterification and polycondensation, then carrying out bromine addition, and finally reacting with N, N-dimethyl-3-nitrobenzamide. The superabsorbent resin is synthesized by taking a starch-based raw material, acrylamide and N-(4-nitrophenyl) acrylamide as reaction monomers, N, N '-methylene bisacrylamide as a cross-linking agent and ceric ammonium nitrate as an initiator, and the porous filler is prepared by firstly synthesizing an imidazolyl ionic liquid from trimethylimidazole and chloromethylnaphthalene and then adopting an external cross-linking method.

The invention provides a method for detecting hydroquinone and resorcinol in catechol, which adopts a high performance liquid chromatography detection method and comprises the following steps: (1) preparing a test solution, a catechol reference solution and a system applicability solution by adopting a diluent; the diluent adopts 0.2% acetic acid solution-methanol in a volume ratio of 75: 25; (2) taking octadecyl silane bonded silica gel as a filling agent; a mobile phase A is a 0.2% acetic acid solution, a mobile phase B is methanol, and gradient elution is carried out; and (3) respectively injecting the catechol reference substance solution, the system applicability solution and the test solution into a liquid chromatograph, and calculating the content of each component. The method can realize quantitative and accurate detection of hydroquinone and resorcinol in catechol, is convenient to operate and high in separation degree, and has important practical significance and application value for improving the quality control level of catechol, guaranteeing the safety of raw material medicines prepared by taking catechol as a starting material and the like.

The present application relates to a kind of short process technology for manufacturing high-performance phosphor copper ball by waste copper, belong to non-ferrous metal processing technical field.Waste copper is sorted, broken, soaked, paint removal, impurity removal and then added to medium-frequency induction melting furnace, and refining agent is added for refining;Phosphor copper alloy is slowly added to the copper liquid after refining;After adding phosphor copper alloy, the copper liquid is introduced into the upper continuous casting equipment, and the copper liquid is cooled and solidified in crystallizer, and phosphor copper ball blank is directly drawn;Phosphor copper ball blank is placed in annealing furnace, and annealing is carried out;Then it is cooled by polyetheramine-bisphenol A epoxy cooling liquid;Mechanical polishing, ultrasonic cleaning obtain high-performance phosphor copper ball;Polyetheramine-bisphenol A epoxy cooling liquid is prepared by polyetheramine, bisphenol A epoxy resin, ethylene glycol butyl ether, 2,5-dimercapto hydroquinone, dibutyl tin dilaurate, deionized water, triethylamine, graphene microsheet;Phosphor copper ball has high hardness and electrical conductivity, and is a kind of high-performance phosphor copper ball.

In order to increase the total light transmittance while maintaining a high haze value of the thermoplastic liquid crystal polymer, a thermoplastic liquid crystal polymer molded body is produced with a haze value of 99% or more, a coefficient of thermal expansion of 16 to 27 ppm / °C, and a correlation between the absorption coefficient (ε) and the thickness (x) satisfying ε ≤ 0.21x<supgt;‑0.55< / supgt>. The thermoplastic liquid crystal polymer may be a polyester containing repeating units derived from a substance selected from the group consisting of p-hydroxybenzoic acid and 6-hydroxy-2-naphthoic acid; 6-hydroxy-2-naphthoic acid, terephthalic acid, and p-aminophenol; p-hydroxybenzoic acid, 6-hydroxy-2-naphthoic acid, and terephthalic acid; 6-hydroxy-2-naphthoic acid, terephthalic acid, p-aminophenol, isophthalic acid, hydroquinone, and naphthalenedicarboxylic acid; and p-hydroxybenzoic acid, terephthalic acid, and 4,4'-dihydroxybiphenyl.