68results about How to "Strong shrinkage" patented technology

The present invention discloses a self-compacting concrete for CRTS III plate-type ballastless track filling layer. The concrete is prepared from the following raw materials in parts by weight: 270-350 parts of cement, 0-130 parts of coal fly ash, 0-120 parts of mineral powder, 20-50 parts of an expanding agent, 790-900 parts of fine aggregate, 750-900 parts of continuous gradation coarse aggregate, 20-40 parts specific viscosity modified materials, 5.5-8.5 parts of a specific sustained release controllable polycarboxylic acid water reducing agent and 165-180 parts of water. According to the invention, the specific viscosity modified materials and specific sustained release controllable polycarboxylic acid water reducing agent are used in combination to prepare the specific self-compacting concrete for filling layer with good flowability, strong volume stability, low sensitivity for water consumption, small thixotropic time change, low shrinkage and good longevity, thereby reducing theconstruction difficulty of the CRTS III plate-type filling layer and prolonging the sevice life of the ballastless track structure.

The invention discloses a flame-retardant PET heat shrink film which comprises the following material in parts by weight: 80 to 90 parts of PET resin, 5 to 10 parts of environmentally friendly fire retardant, 1 to 5 parts of auxiliaries, 2 to 5 parts of lubricant and 1 to 3 parts of plasticizer. The flame-retardant PET heat shrink film not only has high tensile strength and high shrinkage performance, but also has a flame-retardant function, is applicable to external packing of electronic products, can prevent spontaneous combustion, which is caused by heat, of electronic products, and prevents fire hazard.

The invention discloses baby skin moistening and protecting cream which comprises the following ingredients in percentage by weight: 2.15085-41.2% of plant extracts, 0.5-8% of at least one of caprylic triglyceride and capric triglyceride, 0.2-3% of sorbitan olivate, 0.5-10% of glycerinum, 0.2-3% of cetearyl olivate, 0.2-3% of glyceryl stearate, 0.1-5% of sorbitol, 0.05-0.3% of xanthan gum, 0.3-0.8% of tocopherol, 0.0001-0.5% of hyaluronic acid, 0.5-3% of erythritol and the balance of water, wherein the plant extracts include avocado butter, olea europaea fruit oil, rice chaff oil, wheat germ oil, oat germ oil, a paeonia suffruticosa root extract and rosmarinus officinalis leaf oil. The baby skin moistening and protecting cream is prepared from various plant extracts and animal extracts and chemicals with small skin irritation, so that the cream has a good effect of moistening and protecting baby skin and has no irritation and toxicity to the baby skin.

The invention discloses a fullerene ethylenediamine nitrate as well as a preparation method and an application thereof. Firstly, fullerene C60 and ethylenediamine are taken as raw materials, fullerene ethylenediamine is prepared by the aid of a nucleophilic addition principle, and the fullerene ethylenediamine reacts with nitric acid so that the fullerene ethylenediamine nitrate is obtained. The fullerene ethylenediamine nitrate has the advantages of oxidant ammonium nitrate (AN), can avoid disadvantages of hygroscopicity, and crystal transformation of AN, and can be used as an oxidant to be applied in a novel solid rocket propellant or explosive.

The invention provides a composition, and a preparation method and applications thereof. The composition comprises, by weight, 15 to 30 parts of rosemary essential oil, 1 to 5 parts of Artemisia apiacea extract, and 200 to 300 parts of tea bran extract. The formula is reasonable; synergistic interaction of the components is achieved; in preparation of a scalp nourishing agent, the composition is combined with a plurality of scalp conditioning agents, so that the nourishing effect on scalp is improved; the composition is capable of washing hair, is safe and non-irritant, is capable of preventing alopecia, promoting hair growth, blacking and brightening hair, improving dry and regged hair, is promising in application prospect, and is high in market value.

The invention relates to an angiography technology and an anatomy and casting technology of a body sample and specifically discloses a body sample angiographic filler and a preparation method thereof. The filler consists of E-51 epoxy resin, 2,4,6-tri(dimethylamino methyl) phenol (DMP-30), polypropylene glycol diglycidyl ether (D-1217), a T-31 epoxy resin curing agent and a metal oxide powder contrast agent (zinc oxide, titanium dioxide, cuprous oxide and chromium sesquioxide). The angiographic filler disclosed by the invention is simple to prepare, easy to regulate in concentration and color and hard to decolorize, and has the characteristics of being rapid in automatic coagulation, small in percentage of contraction, high in toughness, low in cost and the like. CT reconstruction of blood vessel images of a human body sample or an animal body sample (or organ) have the advantages of being clear, full, continuous, free of fake shadows and burrs and the like.

The invention relates to the technical field of big leaf species tea-seed oil, and particularly relates to a condensed soap prepared by raw material of Yunnan big leaf species tea-seed oil. The condensed soap is prepared from Yunnan big leaf species tea-seed oil, moringa seed oil, grape pip oil, rosemary essential oil, jojoba oil, red wine and sodium hydroxide. The Yunnan big leaf species tea-seed oil, moringa seed oil, grape pip oil, jojoba oil and red wine are scientifically matched to prepare the condensed soap with skin-moistening and beautifying effects.

The invention discloses a shooting speed test system and a test method used for training. A wireless signal projector is arranged on a gun used for shooting and signal switches are respectively connected onto a holster, a gun bolt and a trigger; the signals are received by a wireless signal receiver connected with a computer; the command signal from the conductor is simultaneously sent to the computer and the trainees; as the command is sent by the conductor, the time from drawing gun, feeding, opening safety, pulling trigger to shooting the object are all recorded so as to overcome the defects of the existing system that only the complete time of the shooting can be recorded and the intermediate processes can not be accurately recorded. The invention can accurately measure the shooting speed of the trainees by recording the time of each action during the shooting process so as to help the trainees enhance the actual-combat adaptability and fully enhance the shooting level. The invention can be applied to the training sites with live shooting or laser simulated shooting.

The invention discloses refreshing compound essential oil wet tissue. The wet tissue is prepared by, by weight, 1.5-2.5 parts of benzoin essential oil, 1.2-2.0 parts of rosemary essential oil, 0.8-1.5 parts of thyme essential oil, 0.5-1.2 parts of mint essential oil, 0.4-1.0 part of tea plant essential oil, 0.5-1.3 parts of vetiver essential oil and 7.8-8.5 parts of wheat germ oil. The refreshing compound essential oil wet tissue has the advantages that naturally-extracted essential oil serves as a raw material, no toxic irritant substance is contained, no side effect is generated for the human body after the wet tissue is used for a long time, people cannot be addicted to the wet tissue, and the wet tissue is safe and effective. Borneol is added into components, absorption to the essential oil by nasal cavity mucosa is enhanced, and the wet tissue further has heat absorption and cooling effects when used in summer.

The invention discloses a compound essential oil spray with a refreshing function. The compound essential oil spray with the refreshing function is prepared from the following active ingredients in parts by weight: 1.5-2.5 parts of benzoin essential oil, 0.5-1.2 parts of peppermint essential oil, 0.5-1.0 parts of sweet marjoram essential oil, 1.2-2.0 parts of rosemary essential oil, 0.8-1.5 parts of thyme essential oil, and 7.5-8.5 parts of wheat germ oil. The compound essential oil spray has good effects that the natural extraction essential oil is taken as the raw material without toxic stimulating substance, the compound essential oil spray does not have side effect or addiction on a human body after being used for a long time and is safe and effective; the essential oils are mixed and cannot generate other dangerous chemical substances and the fragrance is fresh and cool; the fatigue nerve of the human body is completely activated through meridian circulation and qi and blood flow.

The invention discloses a microcapsule modified thermoplastic phenolic resin composite material brake pad. The microcapsule modified thermoplastic phenolic resin composite material brake pad comprises the following raw materials in parts by weight: 12-15 parts of modified thermoplastic phenolic resin, 15-22 parts of nylon fiber, 5-10 parts of asphalt base carbon fiber, 5-10 parts of Dutch rock wool, 10-13 parts of cellulosic fiber, 15-20 parts of barite, 5-10 parts of fluorite, 5-6 parts of granular graphite, 5-8 parts of butadiene-acrylonitrile rubber powder, 8-10 parts of cashew nut shell oil friction powder and 2-4 parts of poly(urea-formaldehyde) coated bisphenol A-type epoxy resin microcapsule. The microcapsule modified thermoplastic phenolic resin composite material brake pad disclosed by the invention is good in toughness, moderate in hardness, wear resistant and excellent in heat resistance performance.

The invention discloses electroconductive adhesive with high performance, low resistance value and high cost performance, and a preparation method thereof. The electroconductive adhesive is mainly prepared from epoxy resin, acrylic resin, electroconductive adhesive filler, a dispersing agent, a curing agent and a curing accelerant. The preparation method comprises the following steps: mixing and stirring the epoxy resin, the acrylic resin and the dispersing agent uniformly, slowly adding the electroconductive adhesive filler into the components, adding the curing agent and the curing accelerant, guaranteeing complete and uniform mixing, and stirring at high speed and for 20 to 60 minutes to obtain the electroconductive adhesive. The selected epoxy resin and the acrylic resin are compounded and the advantages of the two adhesive systems are combined, so the temperature resistance and the stability of the electroconductive adhesive can be improved greatly, the traditional single metal copper powder is replaced by the silver-plated copper powder compounded with the resin, the cost is reduced, and the electric conductivity and the electroconductive stability are greatly improved.

The invention relates to an adhesive compound for a hot-sealing insert, to an insert that is equipped with said adhesive compound, and to a method for fixing the insert. The adhesive compound consists of a thermoplastic hot-melt adhesive (A) that is not adhesive at room temperature and a pressure sensitive adhesive (B) that is adhesive at room temperature.

The invention discloses a portable purifying humidifier for air purification and relates to the technical field of air purification equipment. The portable purifying humidifier specifically comprisesan upper shell, a water bucket installation mechanism, a lower shell, a connection mouth waterproof mechanism and sliding mechanisms, wherein the upper end of the upper shell is fixedly provided witha top plate, an annular threaded groove is internally connected with a connection end head in a screwed manner, the middle portion of the upper surface of a cover plate is fixedly provided with a filter net, the water bucket installation mechanism is located on the inner side of a circular groove, the outer surface of the upper shell is fixedly provided with sliding strips, the lower shell is located under the upper shell, the connection mouth waterproof mechanism is located on the front surface of the lower shell, and the sliding mechanisms are located on the left and right two sides of a base. According to the portable purifying humidifier for the air purification, strong contractility exists between the upper shell and the lower shell, after the portable purifying humidifier is used, the upper shell and the lower shell can be compressed, the overall height of the portable purifying humidifier is made to be reduced, the space occupation quantity of the portable purifying humidifier is reduced, and the portable purifying humidifier is conveniently transported and carried.

The invention relates to a various-bottle-neck handle. The upper part of the circular truncated cone-type handle is connected with a cross beam, the lower part is connected with a bottom beam, and a bottle neck sleeve with a telescopic tooth socket is arranged under the bottom beam. The various-bottle-neck handle is installed on a bottle neck, which is convenient for carrying to avoid breaking a bottle.

The invention discloses a weaving method of seamless knitted lace-like fabric. The weaving methodcomprises the following steps: two different kinds of lace yarn of rayon 77 Yilite 23 of 1/47 nm (count) and 75 nylon 25 polyerster of 1/75 nm (count) are selected; a cylindrical weaving mode is adopted, two yarn feeding mouths are required and carry the two different kinds of lace yarn respectively during weaving, and the yarn feeding sequence during weaving is staggered yarn feeding; a fully-formed computerized flat knitting machine with RP needle platesis adopted for weaving, calculating of thefabric technological size, pattern making and patternadjustment are performed on a computer, a lace pattern plate is designed, a programming diagram is input, and weaving is started; the woven fabricis washed with water. The weaving method of the seamless knitted lace-like fabric has theadvantages that the loss of raw materialscan be reduced in the production and weaving process, the minimum order quantity is reduced, the manual sewing procedure is omitted, and the qualified rate and finished product rate of products are increased.