225 results about "GLYCERYL STEARATE" patented technology

The invention relates to the field of foaming materials, in particular to a low-solvent-residue expandable polystyrene material and a preparation method thereof. The expandable polystyrene material with low solvent residue comprises the following raw materials in percentage by weight: 0.35-0.45% of a free radical initiation system, 0.35-0.45% of S, S, S, S, S, S, S, S, S, S, S, S, S, S, S According to the present invention, the material comprises, by weight, 0.1-0.15% of S, S '-bis (alpha, alpha'-dimethyl-alpha ''-acetoxy) trithiocarbonate, 0.15-0.2% of ascorbic acid, 0.1-0.2% of a nucleating agent, 0.2-0.3% of a suspending agent, 0.001-0.003% of an emulsifier, 5-6% of a foaming agent, 0.15-0.25% of a plasticizer, 0.001-0.002% of hydroxyethyl cellulose, 0.05% of sodium phosphate, 0.1-0.2% of zinc stearate, and 0.1-0.2% of glyceryl stearate, the obtained material has low solvent residue, meets food safety requirements, and is suitable for food packaging.

The invention discloses a biological challenge device with combined adjustable resistance for evaluating the effect of a sterilization process, which comprises a shell, the shell comprises a plastic pipe and an inner pipe cap detachably connected with the inner wall of the plastic pipe, the inner pipe cap is provided with a breathable window and covered by a breathable film, and a bacterial contamination carrier for bearing indicator biological spores is attached to the inner bottom of the plastic pipe. An openable container containing a liquid culture medium is arranged in the plastic pipe cavity; the outer side of the inner pipe cap is sleeved with an outer pipe cap detachably connected with the outer wall of the plastic pipe, and the outer pipe cap is provided with a flow blocking structure used for adjusting the speed of the sterilizing agent entering the area of the inner pipe cap; the indicator biological spores are pretreated by a stable protective agent containing one or more of polyethylene glycol, trehalose, sorbitol, polyvinylpyrrolidone and glyceryl stearate. The speed of a sterilizing agent entering the device can be limited, the spores are dry in a suspension added with a stable protective agent, the capability of resisting general environmental changes is very good, and the performance of the device can be maintained for a long time.

The invention discloses external emulsifiable paste for directionally delivering tranexamic acid to an epidermal layer, which is prepared from the following raw materials in percentage by weight: 1-15% of tranexamic acid, 0.5-7% of alpha-arbutin, 0.3-4% of edetate disodium, 1-5% of azone, 1-5% of sodium dodecyl benzene sulfonate and the balance of water. The skin care product is prepared from, by weight, 0.1%-2% of salicylic acid, 1%-10% of glycerin, 2%-15% of propylene glycol, 0.1%-4% of tween-80 or 0.4%-2% of sorbitan oleate, 0.5%-5% of alpha-tocopherol, 0.5%-5% of diisostearyl alcohol malate, 0.5%-6% of soybean phospholipid, 1%-10% of glycerin monostearate, 0.5%-10% of tetradecanol, 0.02%-0.1% of propyl hydroxybenzoate, 1%-10% of stearic acid, 0.5%-6% of stearyl alcohol and the balance water. Meanwhile, the invention also discloses a preparation method, experiments show that the external cream prepared by the invention has strong capacity of delivering tranexamic acid to the epidermal layer and can ensure that the tranexamic acid can be quickly absorbed by cells to take effect, and the defect that tranexamic acid is difficult to pass through skin cuticle obstacles due to strong hydrophilicity is overcome.

The invention discloses an anti-wrinkle firming face cream based on camellia oleosa seed oil diglyceride and a preparation method of the anti-wrinkle firming face cream. The anti-wrinkle firming face cream is prepared from deionized water, glycerin, butanediol, sodium hyaluronate, camellia oleosa seed oil diglyceride, squalane, simmondsia chinensis seed oil, cetearyl glucoside, glyceryl stearate, acetyl hexapeptide-8, palmitoyl tripeptide-1, vitamin E, 1, 2, 4-trimethyl-1, 3-pentanediol and a proper amount of water. The component A is prepared from 1, 2-hexanediol, caprylyl glycol, a thickening agent and a pH regulator; in the aspect of efficacy, through the synergistic effect of the camellia oleosa seed oil diglyceride, the acetyl hexapeptide-8, the palmitoyl tripeptide-1 and the vitamin E, efficient anti-wrinkle tightening is achieved; in the aspect of skin feeling, squalane and jojoba oil are matched with a light emulsifying system and trace xanthan gum, so that velvet matte texture is made, and the velvet is soft, smooth and not sticky; in the aspect of safety, 1, 2-hexanediol and caprylyl glycol which are safe and free of sensitization are used for corrosion prevention, no irritating component is generated, the anti-allergic skin care lotion is suitable for various skin types, the allergy risk is reduced, and reliable and comfortable skin care experience is brought to consumers.

The present invention provides the use of a toad oil cream in preparing a drug for treating dermatitis, and relates to the field of medical technology. The toad oil cream is composed of toad oil and a matrix, and the toad oil is prepared according to the method of Chinese invention patent application CN117126696 A, and the matrix is ​​composed of cetostearyl alcohol, glyceryl monostearate, liquid paraffin, dimethicone, propylparaben, carbomer, glycerol, potassium lauryl phosphate, hyaluronic acid, methylparaben, triethanolamine and water. The toad oil cream obtained by the present invention can reduce the irritation of toad oil to the skin, improve the spreadability of toad oil, show good therapeutic effects on atopic dermatitis and contact dermatitis, and can be used to treat dermatitis.

The invention discloses a high-durability waterborne polyurethane fluoride-free waterproof finishing agent as well as a preparation method and application thereof. The preparation method comprises the following steps: adding dihydroxyl-terminated silicone oil into a reactor, and carrying out high-temperature vacuumizing dehydration treatment; when the temperature of the reactor is reduced to a proper temperature, adding isophorone diisocyanate for reaction to obtain a polyurethane prepolymer; adding glycerin monostearate into the reactor for chain extension; adding a proper amount of hydrophilic chain extender into the reactor for chain extension; and adjusting the pH value, and adding water at room temperature to emulsify uniformly to obtain the high-durability waterborne polyurethane fluoride-free waterproof finishing agent. After the textile waterproof agent is applied to a textile, a layer of high-strength, flexible and wear-resistant polymeric membrane can be formed on the surface of the textile, the waterproof performance of the textile is effectively improved, meanwhile, the textile waterproof agent has good air permeability and flexibility, and the hand feeling of the textile is effectively improved. And the waterproof contact angle after multiple times of washing is slightly different from that before washing, the durability is good, and the service life is long.

This application relates to the technical field of PE pipe processing, and specifically discloses a PE pipe and a preparation method thereof. A PE pipe is made of the following raw materials in parts by mass: 60-80 parts by mass of high-density polyethylene, 20-35 parts by mass of polyphenylene ether, 10-20 parts by mass of ethylene propylene diene monomer rubber, 3-8 parts by mass of polyurethane prepolymer, 2-4 parts by mass of maleic anhydride grafted polyethylene, 0.5-1.5 parts by mass of 4,5-diamino-2-thiouracil, 5-12 parts by mass of silicon-based microcapsule-coated basalt particles, 0.5-2 parts by mass of antioxidant, 0.1-1 part by mass of light stabilizer, and 1.5-2.5 parts by mass of glyceryl stearate. The PE pipe prepared by this application has good mechanical properties and anti-aging properties.

The invention relates to the technical field of repair compositions, and discloses a repair composition based on mussel mucin and application of the repair composition in skin barrier repair. The invention discloses a mussel mucoprotein-zinc composite microcapsule repair agent, which is prepared from the following components in parts by weight: mussel mucoprotein-zinc composite microcapsules, modified carboxymethyl chitosan, isolactone palmitate, a pH response type ceramide slow release system, dimeticone, cetostearyl alcohol, a calcium ion activating agent, an auxiliary repair factor, beheneth-25, caprylic / capric triglyceride, glyceryl monostearate, glyceryl distearate, pentanediol and citric acid. The preparation method comprises the following steps: adding ethanol, phenoxyethanol / ethylhexylglycerin, trehalose, beta-glucan and purified water; according to the whole technical scheme, through functional complementation and process optimization of all the components, synergistic interaction is achieved, the transpedermis water loss amount can be rapidly reduced, the water content of the skin cuticle is increased, the damaged skin barrier structure can be repaired from the source, and the resistance and stability of the skin are remarkably improved.

The invention relates to the field of external cosmetics for eyes, in particular to double-resistance eye cream and a preparation method thereof. The double-resistance eye cream is prepared from the following components in percentage by mass: 4-hydroxyethyl piperazine ethanesulfonic acid, betaine, dipropylene glycol, allantoin, a chelating agent and water, an ammonium acryloyldimethyl taurate / VP copolymer; the invention relates to a skin care product which is prepared from the following raw materials: cetostearyl alcohol wheat straw glycoside, cetostearyl alcohol, glyceryl stearate, PEG-100 stearate, caprylic / capric triglyceride, emblic leafflower fruit extract, polydimethylsiloxane, tocopheryl acetate and behenyl alcohol. Tranexamic acid; a whitening supplement; a bacteriostatic agent; and pine mushroom extract. Aiming at three causes causing periorbital problems, such as skin oxidation, skin saccharification and inflammatory reaction, through a multi-section target spot effect, multiple chains snip dark eyes, refine and lighten wrinkles, and restore elasticity, smoothness and brightness.

The invention discloses a preparation method and application of an endothelium corneum gigeriae galli and angelica sinensis ointment, and relates to the technical field of traditional Chinese medicine, the endothelium corneum gigeriae galli and angelica sinensis ointment comprises the following raw materials in parts by weight: a medicine solution: 1-3g of angelica sinensis extract and 30-35 parts of endothelium corneum gigeriae An oil phase: 1-5 g of white vaseline, 1-5 g of glycerin monostearate, 10-14 g of stearic acid, 5-8 g of liquid paraffin and 3-6 g of wool fat; a water phase: 0.2 to 0.5 g of triethanolamine, 0.5 to 1 g of glycerin, and 0.1 to 0.5 g of ethylparaben; according to the endothelium corneum gigeriae galli and angelica sinensis ointment, endothelium corneum gigeriae galli and angelica sinensis materials are adopted, endothelium corneum gigeriae galli has the effects of healing sore, promoting tissue regeneration, removing blood stasis and the like, angelica sinensis has the effects of replenishing qi, enriching blood and promoting blood circulation to remove blood stasis, and skin wound healing and capillary regeneration can be effectively promoted, local blood circulation is improved, and inflammatory response is inhibited; meanwhile, the ointment is soft in texture and can absorb percolate and inhibit microbial infection; the method is convenient, economical, practical, good in stability and suitable for application and popularization.

The utility model relates to the technical field of emulsifiers, and discloses a production stirring device for a glyceryl stearate emulsifier, which comprises a stirring barrel, a top cover is arranged at the top of the stirring barrel, a feeding pipe is fixedly welded at the top of the top cover, a discharging pipe is fixedly welded at the bottom of the stirring barrel, and a stirring shaft is arranged at the bottom of the stirring barrel. A control valve is fixedly connected to the outer wall of the discharging pipe, a stirring device body is arranged at the top of the top cover, a temperature control device is arranged on the outer wall of the stirring barrel, and supporting columns are fixedly welded to the bottom of the stirring barrel. Then the heat conduction wire is used for heating water in the water tank, after heating is completed, the water pump is controlled to pump out the water in the water tank, hot water is fed into the circulating pipe to flow, and by means of the spiral shape of the circulating pipe, the hot water can conduct heating and heat preservation treatment on the interior of the stirring barrel in the flowing process; the glyceryl stearate is prevented from being solidified in the stirring process.

To provide a water part member that exhibits excellent anti-fouling property under actual use environment, and exhibits also excellent small object placement stability.SOLUTION: A placement portion 12 includes a substrate and a functional layer formed on a surface of the substrate, the substrate is measured in accordance with JIS-B0633 (2001), the arithmetic average roughness Ra of the surface is less than 0.1 μm, and the surface contains silicon atoms and oxygen atoms, the functional layer includes a perfluoropolyether chain, and the surface of the placement portion 12 has a contact angle of the pseudo-sewage of 104° or more, which is ion-exchanged water containing 2 ppm of sodium stearate and 1 ppm of tristearin, and a ratio of the number of oxygen atoms in a perfluoropolyether chain to the number of carbon atoms constituting a main chain of the perfluoropolyether obtained by peak separation of a spectrum obtained by performing X-ray photoelectron spectroscopy (XPS) of the surface of the placement portion 12 is less than 0.6.SELECTED DRAWING: Figure 1

The invention relates to the technical field of traditional Chinese medicine extract preparation, and discloses taste-masking enteric-coated traditional Chinese medicine extract particles which comprise drug-loaded pellets and enteric-coated coatings coating the drug-loaded pellets. The invention relates to a drug-loaded pellet. The coating comprises 20-45 parts of pure powder of the traditional Chinese medicine extract and 5-10 parts of dextrin; according to the taste-masking enteric-coated traditional Chinese medicine extract particle and the preparation method thereof, a stable barrier is formed in gastric juice through a carboxymethyl chitosan-lipidosome copolymer coating, and the degradation rate of effective components is reduced to 1t from 40-60% of a traditional preparation; the pH-responsive coating ensures that the rapid release rate of the intestinal tract is as high as 90%, the bioavailability is improved by 2-3 times, the bitter taste is completely covered by the coating layer, and the coating layer can be mixed with food to feed pets; the prepared sustained-release dosage form prolongs the action time of the medicine, reduces the medication frequency, reduces the medication cost of pet owners, and improves pet welfare.

Emulsifier compositions with certain ingredients have been shown to emulsify large amounts of dermatologically active ingredients, such as botanical ingredients. Some of the ingredients in these emulsifier compositions include lecithin, glyceryl stearate, cetaryl alcohol, and cetaryl olivate. Successfully emulsified cosmeceutical compositions with 20% dermatologically active ingredients have been generated. These cosmeceutical emulsions were shown to be stable for months of heat or cold, as well as repeated freeze-thaw cycles.

The invention relates to the technical field of soothing compositions, and discloses a camellia oil composition for soothing dry, itching and red skin and a preparation method of the camellia oil composition. 0.2 to 5 parts of natural vitamin E; 20 to 70 parts of glycerol; 0.1 to 5 parts of a nonionic emulsifier; 1 to 10 parts of water; in the camellia oil, the content of triterpene alcohol is greater than or equal to 1500mg / kg; the content of squalene is greater than or equal to 100mg / kg; the nonionic emulsifier is prepared from polyglycerol-6 stearate and glyceryl stearate. Camellia oil rich in triterpenol and squalene is adopted as a raw material, and the soothing effect can be effectively improved; meanwhile, the natural vitamin E is added, so that the active ingredients of triterpene alcohol and squalene in the camellia oil can be stabilized; and the camellia oil and the natural vitamin E are prepared into an intermediate which can be directly applied to water aqua, cream and cleaning products, and meanwhile, the stability of the products is improved.

This invention relates to a low-irritation soothing composition and its application, belonging to the technical field of skin care products. The low-irritation soothing composition, by weight percentage, comprises 0.05–0.2 wt% kava soothing agent, 0.3–1.0 wt% pine nut extract, 1.8–2.5 wt% a mixed emulsifier composed of cetearyl alcohol and glyceryl stearate, wherein the mass ratio of cetearyl alcohol to glyceryl stearate is 2.5–3.5:1; 2.0–5.0 wt% moisturizer, 0.4–1.0 wt% preservative, 0–2.0 wt% cosmetically acceptable excipients, and the balance being water. This invention utilizes the synergistic effect of low concentrations of kava soothing agent and pine nut extract, and employs a low total fat emulsification system to form a delicate and stable O / W emulsion, reducing transepidermal water loss and repairing the physical barrier; together, they maintain a low-inflammatory, low-oxidative, and microbial balanced microenvironment, providing ideal conditions for barrier repair.

This invention belongs to the field of pharmaceutical chemistry, and specifically relates to a compound antifungal cream containing the traditional Chinese medicine ingredient tryptamine ketone and its application. The invention comprises the following components, with the following percentage content: stearic acid 10%~16%, glyceryl monostearate 3%~7%, liquid paraffin 5%~9%, tryptamine 0.1%~0.01%, terbinafine hydrochloride 0.00625%~0.000625%, glycerin 4%, triethanolamine 2%~6%, ethylparaben 0.5%, and the balance being purified water or distilled water. This invention is highly effective, low in toxicity, and exhibits low drug resistance.

The present disclosure generally relates to personal care product compositions comprising a fatty amide such as erucamide and / or derivatives thereof having a chemical formula ranging from C18H43NO to C40H79NO for use on hair and / or skin of a user. The disclosure also relates to methods for making such compositions. Such personal care products provide improved biodegradable properties, softer and smoother skin, softer, smoother and shinier hair, and hair with improved body and manageability, while reducing skin irritation and product build-up in the hair and on the skin than personal care products comprising cationic polymers and / or silicone compounds. The formulation of the personal care product may also include one or more additional ingredients such as water, glycerin, hydroxypropylmethylcellulose, glyceryl monostearate, cetyl alcohol, and glyceryl / polyglyceryl-3 caprylic / capric / lactic / lauric acid esters in various concentrations and / or combinations.

The invention relates to the technical field of pharmaceutical preparations, and particularly discloses an anti-inflammatory analgesic indometacin long-acting suppository and a preparation method thereof.The suppository is composed of indometacin sustained-release microspheres and a modified fatty matrix; eudragit RS100 / RL100 is used as a compound framework of the sustained-release microspheres, the sustained-release microspheres are prepared through a spherocrystal granulation process, the modified fatty matrix is prepared from a mixed fatty glyceride compound matrix sustained-release aid, a three-dimensional suspending dispersant and the like through melting, pre-crystallization and high-speed homogenization processes, and the three-dimensional suspending dispersant contains modified nano silicon dioxide, glycerin monostearate and beewax. According to the invention, a microsphere-matrix dual controlled release system is constructed, so that burst release of drugs is eliminated, and long-acting stable release is realized; the microspheres are prevented from settling and agglomerating through a physical locking mechanism, and the storage stability of the preparation is improved by matching with a dual anti-oxidation system; meanwhile, rectal mucosa stimulation is reduced, the preparation process is simple, the quality is controllable, and the composition is suitable for anti-inflammation and analgesia of various diseases and has a wide clinical application prospect.

The application relates to the technical field of degradable materials, and discloses a high-mechanical-property PLA degradable composite material and a preparation method thereof.The high-mechanical-property PLA degradable composite material comprises the following raw materials in parts by weight: 60-80 parts of PLA resin, 15-30 parts of PBS resin, 5-12 parts of Chinese pine powder, 10-15 parts of polycaprolactone, 0.1-3 parts of a modified toughening agent, 0.2-1 part of a modified light stabilizer, 0.1-1 part of antioxidant 1010, 1.5-3 parts of glycerol tristearate, 0.1-0.5 parts of sodium benzoate and 0.1-0.5 parts of silane coupling agent KH-550.The modified toughening agent improves the impact strength and flexibility of the material, and further widens the application scene of the material; the modified light stabilizer enhances the ultraviolet aging resistance of the material, and meanwhile, the material retains excellent degradable characteristics and can be efficiently degraded in a natural environment after being discarded.

The invention discloses snowflake cream with pearly luster and a preparation process of the snowflake cream. The snowflake cream comprises the following raw material components: a phase A: water; butanediol; glycerol; methyl glucitol polyether-20; a polyacrylate cross-linked polymer-6; sodium hyaluronate; potassium hydroxide (90%); 4-hydroxyacetophenone; xanthan gum; phase B: caprylic / capric triglyceride; cetostearyl alcohol; stearic acid; a polydimethylsiloxane; squalane; simmondsia chinensis seed oil; mineral oil; and polyethylene glycol (PEG)-100 stearate. Glyceryl stearate; tocopheryl acetate; isononyl isononanoate; a phase C: 1, 2-hexanediol; carnosine; a centella asiatica extract; collagen; the snowflake cream has the advantages of uniform pearly luster texture and the advantages of traditional snowflake cream.

The application discloses heparin sodium cream and a preparation method thereof, and belongs to the technical field of pharmaceutical preparation production. The heparin sodium cream comprises the following components: heparin sodium, propylene glycol, hydroxyphenyl ethyl ester, sodium dodecyl sulfate, glycerol monostearate and distearate, octadecanol, liquid paraffin, white vaseline and water. The preparation method comprises the following steps: preparing an oil phase and mixing an aqueous phase; taking part of the mixed aqueous phase and the oil phase to form a water-in-oil type primary emulsion; then adding the remaining mixed aqueous phase into the primary emulsion, inducing phase transition into an oil-in-water type cream under mild conditions, and obtaining the finished product after vacuum defoaming and gradient cooling. The application realizes high-efficiency emulsification under mild conditions below 80 DEG C and 3000 rpm through a controlled phase inversion emulsification process, so that the particle size (D99) of the emulsion droplets is less than 5 microns, and the problem that the active substance heparin sodium loses activity under severe conditions is solved completely, and the stability of the product is improved significantly.

The invention relates to the technical field of polyethylene films, and particularly discloses a low-precipitation polyethylene film and a preparation method thereof. The low-precipitation polyethylene film is prepared from the following raw materials: polyethylene, silicon carbide nanowires, nano talcum powder, an antioxidant and glyceryl stearate. The alkane precipitation amount of the obtained polyethylene film is 5 ppm or below, and precipitation of alkane molecules of the polyethylene film is obviously reduced.

The invention relates to low-fat fragrant and sweet salad dressing and a preparation method thereof, and belongs to the technical field of food processing. The salad dressing comprises functional components such as carrageenan, arginine, microfibrillated cellulose, glyceryl monostearate, hydroxypropyl cyclodextrin, soybean lecithin and vegetable oil according to a specific proportion. The preparation method is characterized in that glyceryl monostearate, hydroxypropyl cyclodextrin and soybean phospholipid are melted, mixed and crystallized in advance to form solid composite particles which can be melted in an oral cavity in a phase change manner, so that a strong flavor outbreak feeling and a mellow taste are provided; meanwhile, the salt is slowly released by utilizing the electrostatic interaction of the carrageenan and the arginine in the system; and by combining a three-dimensional network constructed by microfibrillated cellulose, the product is endowed with excellent oil-water separation resistance. While the content of fat and sodium is reduced, the problems of insufficient flavor and poor stability of the traditional low-fat sauce can be improved.

The application provides a white-borneol apricot kernel face mask liquid and a preparation method and application thereof, and relates to the technical field of cosmetics. The preparation raw materials of the white-borneol apricot kernel face mask liquid provided by the application include white petrolatum 5-20 parts, mono-diglyceride 1-10 parts, methyl p-hydroxybenzoate 0.01-8 parts, glycerol 1-10 parts, butanediol 0.05-10 parts, Tween-80 0.05-12 parts and compound extraction liquid 10-30 parts in terms of weight percentage. The white-borneol apricot kernel face mask liquid provided by the application has good moisturizing effect, is cold and heat resistant, has good stability and meets the microbial detection standard of cosmetics.

This invention discloses a coal liquefaction residue-based warm-mix self-healing dual-function asphalt modifier and its preparation method, belonging to the field of road engineering materials technology. The modifier consists of the following components by mass percentage: plasma-activated coal liquefaction residue micropowder (40-60%), warm-mix functional agent (10-20%), self-healing microcapsules (15-25%), interface reinforcing agent (5-10%), and coupling agent (2-5%). The plasma-activated coal liquefaction residue micropowder has a particle size of 0.15 mm, a specific surface area of ​​300-400 m² / g, and a surface hydroxyl content of 1.2-2.0 mmol / g. Its porous structure is used to adsorb and slowly release the warm-mix functional agent, and also serves as a carrier for the microcapsules. The warm-mix functional agent is a compound of sodium alkylbenzene sulfonate / polyoxyethylene ether and glyceryl stearate / methyl oleate, which are oriented at 120-130℃ to form a lubricating interface layer, reducing the viscosity of the asphalt mortar by more than 30%. The self-healing microcapsules use polyurethane as the shell material and contain asphalt recycler, sulfur, and plasticizer in the core material. They can rupture and release the core material when microcracks propagate.

The application discloses an anti-permeation low-shrinkage inorganic coating and a preparation method thereof. The anti-permeation low-shrinkage inorganic coating comprises cement material 40-60 parts by mass, active mixed material 15-30 parts by mass, gypsum 5-15 parts by mass, talcum powder 5-15 parts by mass, glycerin stearate 0-2 parts by mass and additive 4.7-6.7 parts by mass. The application selects green inorganic material, combines the characteristics of slow hydration of low-heat Portland cement, micro-expansion of high-magnesium low-heat Portland cement and micro-expansion of ettringite-like product formed between gypsum and cement hydration product, uses micro-expansion to relieve the shrinkage problem of the material, makes the material form a dense structure, and makes the material have the hydrophobic anti-permeation characteristics through the saponification reaction of glycerin stearate under alkaline conditions.

The invention discloses a high-toughness composite PVC film and a preparation method thereof. The high-toughness composite PVC film is prepared from the following components in parts by weight: 62 to 74 parts of PVC resin, 54 to 67 parts of oxidized polyethlene wax, 25 to 35 parts of silicon dioxide, 26 to 39 parts of aconitic acid monoester, 14 to 28 parts of terephthalic acid, 24 to 36 parts of silane coupling agent, 16 to 28 parts of ethylene propylene diene monomer, 14 to 18 parts of glyceryl stearate, 14 to 19 parts of rare earth stearic acid and 16 to 26 parts of oleamide. Compared with a film at the present stage, the PVC film provided by the invention forms a more stable spatial network structure, can further increase the air permeability, can effectively play a supporting effect, has higher toughness, and is mainly embodied in high elongation at break, high falling standard impact strength, improved impact strength and improved air permeability of the film.

The invention discloses moutan bark extract emulsifiable paste for treating skin eczema and a preparation method and application of the moutan bark extract emulsifiable paste, and belongs to the technical field of traditional Chinese medicine preparations and application of the traditional Chinese medicine preparations. The ointment is prepared from 1%-15% of stearic acid, 1%-15% of glycerin monostearate, 5%-10% of vaseline, 1%-5% of liquid paraffin, 2%-6% of triethanolamine, 2%-15% of humectant, 0.01%-0.1% of preservative, 0.01%-1% of stabilizer and the balance of water. The cream disclosed by the invention is simple in preparation process, easy to operate, good in product coating property and high in stability. The emulsifiable paste has good activity in treatment of eczema, and meanwhile, menthol is added into the preparation, so that transdermal absorption of the medicine can be better promoted, and the treatment effect of the medicine is improved.

The present application relates to the technical field of high polymer materials, and particularly relates to a reversible color-changing microcapsule high-temperature-resistant coating and a preparation method thereof, which comprises the following components in mass ratio: inorganic polysiloxane resin 30%-40%, hydroxyl acrylic resin 10%-20%, additive 2%-5%, solvent 5%-15%, white corundum 5%-10%, silicon powder 10%-15%, and reversible color-changing microcapsule pigment 5%-15%; the reversible color-changing microcapsule pigment is synthesized by core material and wall material, and through the synergistic design of organic-inorganic hybrid wall material (methyl polysiloxane prepolymer, acrylic prepolymer and nano silicon dioxide composite) and core material phase change medium (glyceryl stearate), the problems such as insufficient high-temperature resistance of traditional thermochromic coating, slow color-changing response and poor mechanical stability of microcapsules are effectively solved.