693 results about "Pentaerythritol" patented technology

The invention relates to the technical field of high polymer material preparation, and discloses a bamboo fiber graft modified full-biodegradable composite membrane material preparation process which comprises the following steps: firstly, performing hot mixing and cooling on dried bamboo fiber powder, anhydrous citric acid, choline chloride, activated zinc oxide and pentaerythritol to prepare a bamboo fiber modified premix; then mixing the biodegradable polyester resin with the premix; adding the mixture into an extruder, injecting epoxidized soybean oil into a barrel through a liquid metering device, and performing melt extrusion granulation under a vacuum exhaust condition; and finally carrying out blow molding to form the film. Through in-situ reaction extrusion of multi-component synergism, surface grafting of bamboo fibers, chain extension of a polyester matrix and interface chemical bonding of the bamboo fibers and the polyester matrix are achieved, interface compatibility is effectively improved, degradation of the material in the processing process is inhibited, and the mechanical property and thermal stability of the composite film material are remarkably improved; the process is efficient and environment-friendly, and the cost is controllable.

The application belongs to the technical field of daily chemical industry, and particularly relates to an emulsion and a preparation method thereof. The emulsion provided in the application comprises an emulsifier, glycerol, oil-phase active substance, pentaerythritol tetra(ethylhexanoate) and water; the emulsifier is a lipopeptide; the weight percentage of the lipopeptide and the glycerol is not less than 3%; the weight ratio of the oil-phase active substance and the pentaerythritol tetra(ethylhexanoate) is 1:3-10; the ratio of the sum of the weights of the lipopeptide and the glycerol to the sum of the weights of the oil-phase active substance and the pentaerythritol tetra(ethylhexanoate) is 1:3-10; and the ratio of the sum of the weights of the lipopeptide, the glycerol, the oil-phase active substance and the pentaerythritol tetra(ethylhexanoate) to the weight of the water is 1:1-4. The emulsion is prepared by using sodium bacillomycin, glycerol and pentaerythritol tetra(ethylhexanoate), can effectively inhibit the diffusion of the oil-phase active substance at the interface of the emulsion, reduce the oxidative degradation of the oil-phase active substance, and greatly prolong the effective action time of the oil-phase active substance in the emulsion.

The invention relates to the technical field of cables, and particularly discloses a high-performance halogen-free flame-retardant flexible power cable. The high-performance halogen-free flame-retardant flexible power cable comprises a core layer, an insulating layer, a flame-retardant layer, a shielding layer and a protective layer which are arranged in sequence, the flame-retardant layer is prepared from the following raw material components in parts by weight: 30 to 40 parts of ethylene-vinyl acetate copolymer, 10 to 20 parts of polyolefin elastomer, 8 to 10 parts of microencapsulated ammonium polyphosphate, 2.5 to 4.5 parts of pentaerythritol, 20 to 30 parts of inorganic flame retardant, 5 to 8 parts of expansible graphite, 2 to 3 parts of diatomite, 0.5 to 1.5 parts of nano kaolin, 2 to 3 parts of zinc borate, 0.1 to 0.5 part of antioxidant and 0.5 to 1.0 part of lubricant. The cable provided by the invention not only has good flame retardant property, but also has certain flexibility.

The invention relates to the technical field of preparation of building external wall thermal insulation materials, in particular to a building external wall thermal insulation board based on pearl wool and a preparation method of the building external wall thermal insulation board. The core layer is prepared from the following raw materials in parts by weight: 40 to 60 parts of pearl wool particles, 5 to 15 parts of graphene-loaded expanded graphite, 3 to 10 parts of nano silicon dioxide aerogel, 10 to 20 parts of ammonium polyphosphate, 5 to 12 parts of pentaerythritol, 3 to 8 parts of melamine, 15 to 25 parts of ethylene-vinyl acetate copolymer, 5 to 10 parts of maleic anhydride grafted polyethylene, 2 to 6 parts of nano montmorillonite and 1 to 5 parts of silicon carbide whisker; the composite material is prepared from the following components in parts by weight: 0.5-2 parts of a silane coupling agent KH560, 0.2-0.8 part of an antioxidant 1010, 3-8 parts of amino-terminated polyether and 0.3-1 part of a hindered amine light stabilizer 770. The thermal insulation board is excellent in thermal insulation, mechanical property and flame retardant property, good in weather resistance, stable in size and high in construction adaptability, pearl wool can be recycled, and the thermal insulation board has practical and environment-friendly values.

The invention belongs to the technical field of high polymer materials, and particularly relates to a PET decorative film and a preparation method thereof. The preparation method comprises the following steps: synthesizing hydroxyl-terminated hyperbranched polyester by taking pentaerythritol and 2, 2-dimethylolpropionic acid as raw materials, and reacting with polyol glycidyl ether to prepare an epoxy-terminated organic modifier; silver-loaded nano silicon dioxide subjected to surface treatment by an amino silane coupling agent is used as inorganic functional particles; pET resin, an organic modifier and inorganic functional particles are subjected to melt blending and extrusion granulation, and modified PET is prepared; the modified PET is prepared into the film through a two-way stretching process. Epoxy groups of the organic modifier chemically react with amino groups at the tail end of a PET molecular chain and on the surfaces of inorganic particles respectively, a stable organic-inorganic hybrid network is constructed, synergistic improvement of reinforcement, toughening and long-acting antibiosis is achieved, and the technical problems that functional particles are not uniform in dispersion, interface bonding is weak, and antibacterial components are prone to migration are effectively solved.

The invention discloses a high-whiteness EVA chemical foaming sole material and a preparation method thereof, and belongs to the technical field of footwear products. The EVA chemical foaming sole material is formed by chemical foaming of an EVA composite raw material. The EVA composite raw materials mainly comprise 50 to 70 parts of EVA, 20 to 40 parts of an olefin thermoplastic elastomer, 0.4 to 0.7 part of a peroxide cross-linking agent, 2 to 4 parts of an AC foaming agent, 1 to 2 parts of zinc oxide, 0.3 to 0.8 part of 6-hydroxy-1, 2, 3, 4-tetrahydroquinoline, 0.5 to 1 part of nano zinc carbonate and 0.5 to 1 part of pentaerythritol tetrastearate. The whitening effect of the sole material can be realized on the premise of protecting the EVA foaming-crosslinking structure; therefore, the attractiveness of the product is improved, the durability is better, the mechanical properties and other properties of the EVA foamed sole are not influenced, and the high-quality requirements of elasticity, pressure resistance, comfort and the like of sports shoes can be met.

The invention relates to high-adhesion weather-resistant water-based ink and a preparation process thereof, and relates to the field of ink materials and preparation, and the high-adhesion weather-resistant water-based ink is prepared from the following raw materials in parts by mass: 25-40 parts of waterborne polyurethane, 10-20 parts of waterborne acrylate, 35-50 parts of water-based color paste, 1-4 parts of auxiliaries and water; the water-based acrylate is obtained through emulsion polymerization, and polymeric monomers comprise epoxy acrylate, hydroxyethyl acrylate, pentaerythritol tetraacrylate and acrylic acid; the epoxy acrylate comprises fatty acid modified epoxy diacrylate. The preparation method comprises the following steps: adding the water-based polyurethane resin and the water-based acrylate into water, stirring, adding the water-based color paste, stirring, adding the auxiliary agent, stirring, adjusting the viscosity, stirring, and filtering to obtain the high-adhesion weather-resistant water-based ink. The water-based ink has the effect of improving the adhesive force and weather resistance of the water-based ink.

The invention relates to the technical field of sound insulation materials, in particular to flame-retardant epoxy resin composite diatomite sound insulation cotton and a preparation method thereof. The flame-retardant epoxy resin composite diatomite sound insulation cotton is prepared from epoxy resin, diatomite, a composite flame retardant, a coupling agent, a curing agent, a diluent, a foaming agent and a charring agent. The composite flame retardant at least comprises ammonium polyphosphate and melamine; the coupling agent is a silane coupling agent or a titanate coupling agent; the curing agent is methyl tetrahydrophthalic anhydride; the diluent is n-butyl glycidyl ether; the foaming agent is azodicarbonamide; the charring agent is pentaerythritol. By optimizing the diatomite modification process and combining physical dispersion and chemical modification means, the compatibility of the diatomite and the epoxy resin is greatly improved, the pain point of filler agglomeration in the traditional process is thoroughly solved, the porous sound insulation potential of the diatomite is fully released, and the sound absorption and sound insulation performance of the material is qualitatively improved.

The invention relates to the technical field of ink, in particular to modified filler environment-friendly ink and a preparation method thereof. The modified filler environment-friendly printing ink is prepared from the following raw materials in parts by mass: 20 to 40 parts of waterborne acrylic emulsion, 10 to 20 parts of polyurethane acrylate prepolymer, 1 to 5 parts of bis (trimethylolpropane) tetraacrylate, 10 to 20 parts of pentaerythritol tetraacrylate, 5 to 10 parts of mica powder, 1 to 2 parts of 3-aminopropyltriethoxysilane, 0.1 to 1 part of epoxy chloropropane and 5 to 10 parts of amino-terminated polyamidoamine. The coating is prepared from the following components in parts by weight: 1-2 parts of a photoinitiator, 1-3 parts of a dispersing agent, 1-2 parts of a reactive diluent, 1-2 parts of an organic silicon defoaming agent, 0.5-1.5 parts of a mildew preventive, 0.1-1 part of a thixotropic agent, 5-15 parts of pigment, 1-5 parts of kaolin, 5-10 parts of polyethylene wax and 1-5 parts of water. The obtained ink is good in dispersion stability, good in flexibility after being cured and excellent in adhesive force.

The invention discloses a cellulose microcrystal reinforced degradable flame-retardant PLA composite material and a preparation method thereof, and belongs to the field of bio-based functional polymer materials. The composite material is prepared from the following components in parts by weight: 80 to 100 parts of polylactic acid (PLA), 3 to 10 parts of bamboo cellulose microcrystal, 3 to 10 parts of biomass polyphosphate, 1 to 5 parts of GO-g-PLA, 10 to 30 parts of PBAT toughening agent and 0.2 to 1 part of auxiliary agent. The preparation method comprises the following steps: (1) preparing high-crystallinity bamboo cellulose microcrystals by adopting a supercritical CO2 method; (2) preparing a GO-g-PLA interface compatilizer through graft polymerization; (3) synthesizing a biomass polyphosphate flame retardant by taking pentaerythritol and diphenolic acid as raw materials; and (4) melting, blending and extruding the components. Through the synergistic effect of a flame retardant-GO-BCMC three-dimensional network, the material has excellent mechanical properties (the tensile strength is 45-47 MPa, and the impact strength is 10-12 kJ / m), high flame retardance (LOI is 28-29%, UL-94 V-0 level) and environmental friendliness (the 180-day biodegradation rate gt); the composite material can be widely applied to the fields of electronic and electric appliances, automotive trim, medical materials and the like.

The invention discloses a preparation process of polyether-ether-ketone, and relates to the technical field of preparation of inorganic compounds. The preparation process comprises the following steps: reacting 4, 4 '-difluorobenzophenone, sodium carbonate and hydroquinone to generate polyether-ether-ketone, taking a polyaryletherketone block oligomer as an end-capping reagent, reacting 4, 4'-difluorobenzophenone with 4, 4 '-dimercaptodiphenyl sulfone, and then reacting with pentaerythritol phosphate to obtain the polyaryletherketone block oligomer. The thioester bond reversibly breaks at the polymerization temperature, exposed active sulfenyl reacts with hydroxyl at the tail end of the polyether-ether-ketone to form a more stable covalent bond, volatilization of the end-capping reagent is avoided, meanwhile, the initial decomposition temperature of the end-capped polyether-ether-ketone is increased, and the stability of the end-capping reagent is improved. The polyether-ether-ketone generated in the polyether-ether-ketone resin product is subjected to treatment procedures of crushing, organic solvent extraction, water washing, filtering, drying and the like, so that the product polyether-ether-ketone is obtained, less three wastes are generated, the solvent can be recycled, the atom economy is relatively high, and the preparation process of comprehensive utilization of resources is realized.

The invention relates to the technical field of coatings, discloses a multifunctional fireproof and waterproof polysiloxane coating and a preparation method thereof, and aims at solving the problems that the hydrophobic function of an existing fireproof and waterproof polysiloxane coating is irreversibly lost after a fire disaster, and the fireproof and waterproof synergistic performance is remarkably attenuated in a medium-high-temperature environment. Hydroxyl-terminated methyl phenyl siloxane is used as matrix resin, and is matched with a flame-retardant system composed of melamine modified ammonium polyphosphate, pentaerythritol and amino modified nano-montmorillonite, a hydrophobic repair system composed of polysiloxane capsule wall fluorosilane microcapsules, an interface modifier compounded by an epoxy group and an amino silane coupling agent, and a special auxiliary agent. A three-dimensional covalent network is constructed to anchor all the components, efficient charring and temperature response type hydrophobic repair are achieved, the finished product is prepared through microcapsule preparation, modified flame retardant compounding and coating main body blending, and the finished product has excellent fireproof and waterproof performance, a renewable hydrophobic function after a fire disaster and stable performance at medium and high temperatures and is suitable for industrial long-term protection scenes.

The invention discloses a non-woven fabric made of Juncao fibers, and belongs to the technical field of textiles. The non-woven fabric made of the Juncao fibers is obtained by opening and mixing modified Juncao regenerated cellulose fibers, carding to form a net and needling and reinforcing; the modified pennisetum sinese regenerated cellulose fiber is prepared by the following steps: dipping dried pennisetum sinese pulp, squeezing, carrying out graft copolymerization on the squeezed dried pennisetum sinese pulp, 2-acrylamide-2-methylpropanesulfonic acid and benzaldehyde PEG acrylamide under the catalysis of ceric ammonium nitrate, dissolving, then adding chamomile essential oil microcapsules, reacting, and spinning. The chamomile essential oil microcapsule is prepared by the following steps: dispersing chamomile essential oil into a continuous phase containing an allyl monomer by an SPG membrane emulsification method to form a microemulsion, and preparing the chamomile essential oil microcapsule by combining an interfacial polymerization method; wherein the allyl monomer is prepared from methacrylic acid, methyl methacrylate, pentaerythritol tetraacrylate and N-(4-acetylphenyl) prop-2-acrylamide.

The invention relates to the field of composite materials, and discloses a ceramic fiber reinforced composite aerogel material and a preparation method thereof.The ceramic fiber reinforced composite aerogel material is prepared from ceramic fibers, fumed silica, an aerogel precursor, modified aerogel powder and other raw materials through a sol-gel combined special drying technology; the flame-retardant fireproof coating is formed by spraying and curing slurry prepared from potassium silicate, silicone acrylic emulsion, modified ammonium polyphosphate, pentaerythritol, aluminum hydroxide, expanded vermiculite and fumed silica, and modified aerogel powder is prepared by dipping a silicon dioxide precursor solution into reduced graphene oxide aerogel; the modified ammonium polyphosphate is prepared by synergistically assembling activated ammonium polyphosphate and chitosan, combining with mercaptopropyltrimethoxysilane and then grafting octavinyl-POSS (Polyhedral Oligomeric Silsesquioxane). The prepared ceramic fiber reinforced aerogel material has the characteristics of high temperature resistance, light weight and high strength; the flame-retardant fireproof coating improves the antifouling self-cleaning effect, the fire endurance and the heat insulation performance of the material.

A geopolymer precursor includes an alkaline reactive solid material containing aluminum, silicon, and oxygen, and a fluid loss control material having an ionic stability property that has a first value in water and a second value in a 3M solution of NaOH, wherein a ratio of the second value to the first value is in a range of 0.5 to 2.0. The fluid loss control material may be, or may include a crosslinked polymer, which may include a reaction product of one or more of acrylamide, 2-acrylamido-2-methyl propane sulfonic acid, N,N‑dimethylacrylamide, N,N‑diethylacrylamide, vinyl acetate, or another monomer, and a crosslinker including one or more of methylene bisacrylamide, triallyl amine, pentaerythritol allyl ether, triallyl-triazine-trione, or another material. The geopolymer precursor may include an activator, an alkaline solution having pH of at least about 9, or both.

The invention discloses a polyamide cable material as well as a preparation method and application thereof. The cable material is prepared from the following raw materials in parts by weight: 100 parts of polyamide, 10 to 40 parts of nano magnesium hydroxide whisker, 1 to 5 parts of silane coupling agent, 1 to 5 parts of amphiphilic block copolymer, 1 to 10 parts of pentaerythritol triacrylate and 1 to 5 parts of antioxidant, wherein the fiber length of the nano magnesium hydroxide whisker is 200 to 1000 nm, and the fiber diameter of the nano magnesium hydroxide whisker is 30 to 80 nm. The polyamide cable material has good temperature resistance (can tolerate the high temperature of 135 DEG C for a long time), flame retardance (the limit oxygen index can reach 31% or above, preferably 33.5%), mechanical properties (excellent tensile strength and low-temperature impact resistance) and relatively high volume resistivity.

The invention discloses high-strength plastic particles as well as a preparation method and application thereof, and belongs to the technical field of high polymer material modification. The plastic particle is prepared from high-density polyethylene, hyperbranched polyesteramine containing a diurea group, a layered double metal hydroxide-polypyrrole nano hybrid, a maleic anhydride grafted ethylene-octylene copolymer, an antioxidant and calcium stearate. Wherein the hyperbranched polyesteramine containing the diurea group is prepared by reacting pentaerythritol with citric acid to generate a citrate framework and then reacting with diphenylmethane diisocyanate and 1, 4-butanediol; the layered double hydroxide-polypyrrole nano hybrid is prepared by carrying out in-situ polymerization and coating on magnesium-aluminum layered double hydroxides through a pyrrole monomer. According to the plastic particle, the tensile strength, the heat resistance and the flame retardance are remarkably improved through synergistic enhancement of the hyperbranched polyesteramine and the nano hybrid, and the plastic particle can be applied to the fields of automobile bumpers, high-voltage cable sheaths, weather-proof plates for buildings and the like.

The invention relates to the technical field of petroleum drilling fluid loss reduction, and discloses an anti-divalent salt fluid loss agent for drilling fluid, which is prepared by the following steps: step 1, beta-cyclohexylamine and 6-chloro-1-hexene are subjected to a reaction to obtain alkenyl beta-cyclohexylamine; step 2, initiating polymerization of alkenyl beta-cyclopentadiene, a hyperbranched monomer pentaerythritol triallyl ether and 2-acrylamide-2-methylpropanesulfonic acid under the action of azobis (isobutylamidine hydrochloride), so as to obtain an intermediate A; 3, 3-dimethylamino-1-propylamine and palmitic acid are subjected to a reaction, and an intermediate 2 is obtained; 4, the intermediate 2 and benzyl chloride are subjected to a reaction, and quaternary ammonium salt modified fatty acid is obtained; and 5, stirring and mixing the intermediate A, quaternary ammonium salt modified fatty acid and coupling agent modified walnut powder to obtain the divalent salt resistant filtrate reducer for the drilling fluid. The anti-divalent salt filtrate reducer for the drilling fluid has a relatively good anti-divalent salt effect.

The invention belongs to the technical field of chemical production, and particularly relates to a novel process for separating pentaerythritol by a membrane method and application of the novel process. The membrane separation comprises the steps of separating sodium formate by using an ion exchange membrane and separating pentaerythritol by using a low-pressure nanofiltration membrane device. The dealdehyding liquid is separated through different membranes, and formic acid, pentaerythritol, dipentaerythritol and other substances can be effectively separated. The process greatly shortens the process flow and saves the cost. According to the technical scheme, the quality and performance of the pentaerythritol product are remarkably improved, the added value of the product is increased, and a new technical scheme is provided for industrial production of pentaerythritol.

The invention provides a preparation method of photocatalytic hydrogel, belongs to the technical field of photocatalysis, and aims at solving the problems that traditional hydrogen production is high in energy consumption and pollution, and existing photocatalytic hydrogel is low in purity and unstable in performance. The method comprises the following steps: firstly, preparing seven precursors of CPDT-1, CPDT-2Br-SO3Na, PCT-SO3Na, Flu-2Br-SO3Na, PFT-SO3Na, PCBT-SO3Na and PFBT-SO3Na step by step, and carrying out nitrogen purging to prevent oxidation, acetone precipitation, recrystallization and Soxhlet extraction and purification in the process; the four active precursors are mixed with acrylic acid, pentaerythritol triallyl ether and (2, 4, 6-trimethylbenzoyl) diphenyl phosphine oxide respectively, the mixture is subjected to 365nm ultraviolet irradiation polymerization, and four photocatalytic hydrogels are prepared. The method has the advantages of mild conditions, controllable operation, high product purity and stable photocatalytic performance, and is suitable for hydrogen energy preparation and water pollution treatment.

This invention provides a multi-layer cosmetic that can provide a cooling sensation and shine to the skin after application, has excellent cooling retention, and allows for easy mixing of the oil layer and water layer during use. [Solution] The following components (A), (B), (C), and (D): (A) Fatty acid ester having a pentaerythritol group (B) Volatile oils (C) Nonionic surfactants with an HLB value of 1 to 9 (D)Water A multi-layer cosmetic containing [specific ingredient].

The invention relates to the technical field of coatings, and discloses an acid and alkali resistant UV curing coating and a preparation method thereof. The prepared UV curing coating is prepared from the following raw materials in parts by weight: 40 to 60 parts of acrylic resin, 3 to 8 parts of pentaerythritol tetraacrylate, 3 to 7 parts of silicon dioxide, 3 to 5 parts of a photoinitiator, 6 to 12 parts of a composite reinforcing agent, 0.2 to 0.6 part of a flatting agent, 1 to 2 parts of a dispersing agent, 0.5 to 1.5 parts of a de-foaming agent and 15 to 25 parts of water. A coating film obtained after the coating is subjected to ultraviolet curing has excellent acid and alkali resistance, salt spray resistance and adhesive force and can be widely applied to the surface of a metal base material, and the metal base material is protected against corrosion of corrosive media such as acid, alkali and salt.

The invention belongs to the technical field of daily plastic products, and particularly relates to a high-temperature-resistant reinforced transport case material and a preparation method thereof. The transport case is prepared from the following raw materials in parts by mass: 88 to 100 parts of polypropylene, 8 to 12 parts of PP-g-ITA, 7 to 10 parts of PP-g-AN, 0.05 to 0.2 part of an aryl dicarboxamide nucleating agent, 5 to 8 parts of fibers, 3 to 5 parts of mica powder, 0.2 to 0.5 part of an antioxidant, 0.1 to 0.2 part of a benzotriazole ultraviolet absorbent, 0.2 to 0.3 part of a silane coupling agent, 0.1 to 0.2 part of polyethylene wax, 0.2 to 0.4 part of calcium stearate and 0.1 to 0.3 part of pentaerythritol stearate. The preparation method of the high-temperature-resistant reinforced transport case material is simple, and a transport case prepared from the high-temperature-resistant reinforced transport case material is excellent in thermal stability, weather resistance and mechanical property.

The application belongs to the technical field of oil exploitation, and particularly relates to a temporary plugging agent for fracturing acidification and a preparation method thereof. The preparation method is as follows: in a reactor, itaconic acid, p-styrene sulfonic acid, 2-allyloxy methyl-2-hydroxymethyl propane-1,3-diol, vinyl pyridine, pentaerythritol diacrylate, buffer salt and deionized water are sequentially added, stirring is conducted, the pH value is adjusted, and all raw materials are completely dissolved; an initiator is added from a high-position dropping tank, the reaction is automatically heated, the reaction is kept, a reducing agent is added, the reaction is terminated, the pH value is adjusted, and a temporary plugging agent solution is obtained; the temporary plugging agent solution is dried and granulated to obtain the product temporary plugging agent. The preparation method has the characteristics of simple synthesis process and no by-products; the temporary plugging agent has the advantages of large water absorption, large plugging strength, high breakthrough pressure, self-degradation and designable degradation time.

The present application relates to the technical field of photovoltaic material, in particular to a photovoltaic solder strip and a photovoltaic module prepared by the same. According to the present application, 35-45% tin, 20-30% lead, 20-30% bismuth and 1-5wt% silver are mixed to obtain a quaternary material solder with a melting point of 140-180 DEG C, which not only meets the low-temperature welding process conditions, but also maintains good welding tension, thereby ensuring that the prepared photovoltaic module has high photoelectric conversion efficiency. In addition, when the photovoltaic solder strip is used to prepare the photovoltaic module, the fluorine-containing monomer is prepared by the reaction of dodecafluoroheptanol and acrylic acid, the benzene-containing crosslinking monomer is obtained by the reaction of pentaerythritol and 4-vinylbenzoic acid, the fluorine-containing monomer and the benzene-containing crosslinking monomer are used to modify the EVA resin, and the EVA encapsulating adhesive layer with strong adhesion and good thermal chemical properties is obtained, thereby prolonging the service life of the photovoltaic module and reducing the repair rate.

SILICONE-FREE COSMETIC COMPOSITIONS This disclosure relates to compositions including squalene, at least one bio-based branched hydrocarbon, at least one bio-based pentaerythrityl ester, and processes for using such compositions. The cosmetic composition is silicone-free. The cosmetic composition spreads easily and has favorable sensory properties without the use of silicones. Figure for the abstract: none

The invention discloses weather-resistant and medium-resistant alkyd resin varnish and a preparation method thereof. The varnish is prepared from the following raw materials: modified alkyd resin, a composite drier, zirconium iso-octoate with the purity of 12%, an anti-skinning agent, 200 # solvent oil and xylene. The modified alkyd resin is prepared from the following raw materials: soya oil acid, pentaerythritol, benzoic acid, pyrrolidine-2-one-1-acetic acid, dimethylbenzene and a 200 # solvent. According to the invention, pyrrolidine-2-ketone-1-acetic acid is used as a binary acid component to partially or completely replace traditional phthalic anhydride, so that the reaction efficiency of alkyd resin synthesis can be improved, and the problems of yellowing, pulverization and poor water resistance of traditional alkyd resin can be solved; according to the varnish prepared by the invention, on the basis of maintaining the inherent gloss, flexibility and constructability of alkyd resin, the key properties such as weather resistance, water resistance and acid resistance are improved; the whole preparation process of the varnish continues to use mature alkyd resin production equipment and flow, and has good economical efficiency and industrial popularization prospects.

The application relates to the technical field of insulating flame-retardant fire extinguishing agent preparation, and relates to an insulating flame-retardant fire extinguishing agent and a preparation method thereof.The preparation method comprises the following steps: receiving an insulating flame-retardant fire extinguishing agent preparation instruction, confirming preparation materials and preparation devices according to the insulating flame-retardant fire extinguishing agent preparation instruction, obtaining an optimal mass ratio, weighing ammonium polyphosphate powder, pentaerythritol powder and lignin powder according to the optimal mass ratio, preparing bio-based intumescent flame-retardant component powder, preparing sodium alginate solution and ferric chloride crosslinking solution based on sodium alginate and deionized water, preparing a gel particle set based on the sodium alginate solution and the ferric chloride crosslinking solution, obtaining catalytic carbonization synergistic component powder according to the gel particle set, preparing the insulating flame-retardant fire extinguishing agent based on the bio-based intumescent flame-retardant component powder and the catalytic carbonization synergistic component powder, and completing the preparation of the insulating flame-retardant fire extinguishing agent based on the insulating flame-retardant fire extinguishing agent.The application can realize stable quality and safe and environment-friendly production of the fire extinguishing agent.

This invention discloses a flame-retardant PBT composite material, comprising the following components by weight: 40-73 parts PBT; 0.8-3.2 parts alkali lignin; 13-18 parts brominated flame retardant; 3-5 parts antimony trioxide; and 0.5-1 parts pentaerythritol. The weight-average molecular weight of the alkali lignin is 3000-10000. By selecting alkali lignin and pentaerythritol with specific molecular weights and using antimony trioxide as a laser color developer, this invention can effectively improve the laser marking defects of PBT composite materials modified with brominated flame retardants and has the advantage of thin-walled flame retardancy.

The invention belongs to the technical field of epoxy resin flame retardance, and particularly relates to a phosphorus-nitrogen flame-retardant curing agent, preparation thereof and application of the phosphorus-nitrogen flame-retardant curing agent in epoxy resin. In order to prepare the flame-retardant curing agent with both flame retardance and curing, pentaerythritol and phosphorus oxychloride are subjected to a reaction to synthesize an intermediate pentaerythritol diphosphate diphosphoryl chloride; and reacting the intermediate with 4, 4-diaminodiphenylmethane to synthesize the phosphorus-nitrogen flame-retardant curing agent 4, 4-diaminodiphenylmethane pentaerythritol diphosphate. The phosphorus-nitrogen flame-retardant curing agent has good smoke suppression performance, can reduce the combustion rate, is low in cost and environment-friendly, and is mixed with epoxy resin for curing to obtain an epoxy resin composite material with a flame-retardant function, so that the flame-retardant performance of the epoxy resin composite material can be improved, and the fire risk can be reduced.