14results about How to "Reduce regularity" patented technology

The utility model relates to the technical field of food processing, and discloses a convenient straight noodle anti-adhesion device, which comprises a first gas ejector pipe, a second gas ejector pipe, a plurality of first gas ejector holes, a plurality of second gas ejector holes and a plurality of second gas ejector holes, the first air spraying holes are used for blowing away the straight face strips falling from the front portion forwards, blowing away the straight face strips falling from the rear portion backwards and drying the cutting faces of the straight face strips. And the second air injection pipe is installed at the lower end of the middle guide plate and arranged behind the bent position of the straight face strip falling to the forming mesh belt, a plurality of second air injection holes inclining forwards are formed in the second air injection pipe, and the second air injection holes are used for blowing away the falling straight face strip forwards so as to slow down the speed of the straight face strip falling to the forming mesh belt. Therefore, the adhesion problem of the straight noodles is effectively avoided, and the adhesion rate of the noodles is remarkably reduced.

The invention provides a full-biodegradable composite film and a preparation method thereof. The full composite membrane comprises an outer layer, a middle layer and an inner layer, wherein the outer layer comprises modified calcium carbonate, PLA, PBAT and an epoxy chain extender; the middle layer comprises modified montmorillonite, PLA (polylactic acid), PBAT (poly (butylene adipate-co-terephthalate)), PPC (polypropylene carbonate) and an epoxy chain extender; the inner layer comprises PLA (polylactic acid), PBAT (poly (butylene adipate-co-terephthalate)), an epoxy chain extender and an optional anti-blocking agent. The preparation method of the raw materials of the middle layer comprises the following steps: (i) dividing an epoxy chain extender used by the middle layer into an epoxy chain extender A and an epoxy chain extender B, and mixing PPC, modified montmorillonite and the epoxy chain extender A to prepare a first master batch of the middle layer; (ii) mixing PLA, PBAT and an epoxy chain extender B to prepare a middle-layer second master batch; and (iii) uniformly mixing the middle-layer first master batch and the middle-layer second master batch, extruding and granulating to obtain a middle-layer raw material. The full-biodegradable composite film prepared by the preparation method disclosed by the invention is good in uniformity and quality.

The present invention belongs to the technical field of polyamide fibers, and specifically relates to a polyamide material for industrial silk, a preparation method thereof, and fibers. The modified polyamide provided by the present invention has a structure shown in Formula I: wherein Q is a semi-aromatic amide structural unit, R is a phosphorus-containing semi-aromatic amide structural unit, S is an aliphatic amide structural unit, and P is a polyamide structural unit; a is 3 to 6, b is 1 to 3, c is 2 to 5, and d is 110 to 240. The present invention introduces aromatic ring structure, phosphorus-containing group and flexible chain segment into polyamide molecular chain through copolymerization, utilizes rigid benzene ring structure and phosphorus-containing flame retardant structure to reduce hydrogen bonding between polyamide molecular chains, increases the proportion of amorphous region of modified polyamide, utilizes long-chain polyamide flexible chain segment to improve the softness and activity of modified polyamide, and at the same time, the side group phosphorus-containing aromatic ring structure also improves the flame retardant performance of modified polyamide.

The invention provides a preparation method of sealing aging resistant PBAT resin, biodegradable plastic and application, and the preparation method comprises the following steps: mixing adipic acid, butanediol and a first catalyst, and carrying out a first esterification reaction to obtain a first intermediate product; mixing terephthalic acid, m-phenylenediacetic acid, butanediol and a second catalyst, and carrying out a second esterification reaction to obtain a second intermediate product; performing a pre-polycondensation reaction on the first intermediate product, the second intermediate product and a pre-polycondensation catalyst in a polymerization reaction kettle to obtain a pre-polycondensation product; and carrying out final polycondensation on the pre-polycondensation product to obtain the sealing aging resistant PBAT resin. The edge sealing bag prepared from the sealing aging-resistant PBAT resin provided by the invention has more excellent sealing performance, and the sealing aging-resistant performance of the edge sealing bag is better.

The present invention discloses a hydrophobic thermoplastic polyimide resin and a preparation method thereof, and the preparation method comprises the following steps: S1, mixing a dianhydride monomer with a polar solvent, adding a diamine monomer, stirring, and obtaining a polyamic acid solution; S2, adding an organic base and a dehydrating agent to the polyamic acid solution, heating, stirring, adding the reaction solution to an alcohol solvent to precipitate a precipitate, collecting the precipitate, washing, and drying to obtain a hydrophobic thermoplastic polyimide resin. By introducing a fluorinated alkyl group, the hydrophobicity and various properties of the thermoplastic polyimide resin are effectively improved; relative to the existing method of coating a hydrophobic coating on the surface of polyimide or constructing a micro-nano structure, the technical solution of the present invention avoids the reduction of structural strength caused by doping, and while improving the hydrophobicity of the polyimide, a longer hydrophobic period can be maintained. By introducing a long-chain fluorinated alkane and introducing a large number of fluorine atoms, the water contact angle can reach more than 120°, showing excellent hydrophobicity.

The invention belongs to the field of plastics. The invention relates to a PP material for an automobile bumper and a preparation method of the PP material. The PP material for the automobile bumper comprises the following raw materials in parts by weight: 88-97 parts of PP; 3 to 12 parts of POE (Polyolefin Elastomer); 1.0 to 3.0 parts of a modified filler; 2.0 to 5.0 parts of a modified filler I; 10 to 20 parts of a modified filler II; 0.1 to 1.0 part of an antioxidant; 0.2 to 0.8 part of a light stabilizer; 0.1 to 0.5 part of a lubricant; 0.5 to 2.0 parts of a scratch resistant agent; wherein the modified filler I and the modified filler II are self-made fillers; the components are respectively subjected to processes of filler pretreatment, mixing, extrusion and granulation, and a specific side charging process is utilized to prepare the composite material. The novel PP material for the automobile bumper effectively solves the problems of poor impact resistance, heat resistance and scratch resistance of the PP material for the automobile bumper in the prior art.

The utility model discloses a multi-sense full-color laser optical network effect system, which belongs to the technical field of semiconductor laser application, and comprises a left side wall body and a right side wall body which are symmetrically arranged, and one side of the left side wall body close to the right side wall body is fixedly connected with a laser light source system. The side, close to the left side wall body, of the right side wall body is fixedly connected with a laser reflecting mirror set, the side, close to the laser light source system, of the left side wall body is fixedly connected with a radiator, and a sensing mechanism is arranged between the left side wall body and the right side wall body. The system solves the problems that an existing laser light network effect system cannot link various senses of audiences, and a plurality of line laser lamps are adopted to emit light at the same time to form a light network, so that equipment operation is inconvenient, cost is high, and light shadow and sense effects are poor.

The application provides a user-side micro-grid load regulation method, system and equipment based on artificial intelligence, and relates to the technical field of micro-grid management.The method comprises the following steps: analyzing multi-dimensional heterogeneous data to obtain load time series data, and determining the demand weight of each user according to power demand data through an analytic hierarchy process; processing the load time series data through empirical mode decomposition to obtain intrinsic mode function components; dynamically predicting the intrinsic mode function components, and obtaining a multi-modal load prediction result by weighting and fusing the prediction results through an attention mechanism; optimizing the multi-modal load prediction result in combination with the operation target of a micro-grid cluster to generate a basic load regulation strategy of the micro-grid cluster; and generating a final regulation strategy corresponding to each user in combination with the demand weight corresponding to the user according to the basic load regulation strategy, and regulating the final regulation strategy. The application significantly improves the regulation accuracy of the user-side micro-grid load.

This invention discloses a polyester material, a heat-shrinkable film, its preparation method, and its applications. The raw materials for preparing the polyester material include a diacid, a diol, a chain extender, a stabilizer, and a catalyst; wherein the diacid comprises: 90 mol%~95 mol% polyterephthalic acid and 5 mol%~10 mol% isophthalic acid; the diol comprises: 65 mol%~78 mol% ethylene glycol, 18 mol%~28 mol% 1,4-cyclohexanediol, and 4 mol%~12 mol% diethylene glycol; the chain extender is 2,2'-(1,3-phenylene)-dioxazoline, added in an amount of 0.2%~0.8% of the total mass of the diol and the diacid; the molar ratio of carboxyl groups to hydroxyl groups in the diacid and the diol is 1:1~1.05. The polyester material of this invention possesses excellent transparency, shrinkage rate, and strength, and has a low initial shrinkage temperature, making it particularly suitable for applications such as heat-shrinkable films. This invention also provides a heat-shrinkable film, as well as the polyester material, a method for preparing the heat-shrinkable film, and their applications.

The present application belongs to the cross field of water treatment technology field and waste shrimp shell resource utilization technology field, and specifically relates to a waste shrimp shell derived chitosan-based iron-carbon composite hydrogel as well as a preparation method and application thereof. The present application carries out overall design around the preparation of chitosan and the forming process of network structure, adopts a betaine-acetic acid low eutectic solvent system to extract chitin in waste shrimp shells, and further converts to obtain chitosan. Meanwhile, carbon nanotubes and nano-ferroferric oxide are introduced into the chitosan system to synergistically regulate the material from two aspects of skeleton support and function supplement. The hydrogel microspheres have good antibiotic adsorption and degradation capacity, and have high application prospect in wastewater treatment in industries such as aquaculture, pharmaceuticals and agriculture.

The invention provides a low-temperature-resistant all-terrain rubber belt as well as a preparation method and application thereof, and belongs to the technical field of rubber belts. The aramid canvas in the low-temperature-resistant all-terrain rubber belt provided by the invention has the properties of low temperature resistance, light weight, good flexibility and the like; smoked sheet rubber and butadiene rubber which are good in low temperature resistance are selected in the covering rubber, and the smoked sheet rubber and the butadiene rubber are used for weakening the regularity of macromolecular chains, so that the cold resistance is improved; the cold resistance of the rubber material can be obviously improved by controlling the composition of the middle core rubber; the covering rubber adopts a semi-effective vulcanization system, the generation of polysulfide bonds is reduced, monosulfide bonds and disulfide bonds are mainly generated, and the possibility of combining sulfur in molecules is reduced, so that the glass transition temperature rise amplitude is small, and the cold resistance of the covering rubber is improved; the structure of the rubber belt and the composition of the covering rubber and the middle core rubber are controlled, the cold resistance of the rubber belt is improved, the rubber belt can be used under the environment condition of-60 DEG C, and meanwhile the rubber belt is small in thickness and light in weight.

The invention belongs to the field of plastics. The invention relates to a PP material for a turnover box and a preparation method of the PP material. The PP material for the turnover box comprises the following raw materials in parts by weight: 50-75 parts of PP; 5 to 25 parts of PE; 4.0 to 6.0 parts of a toughening agent; 1.0 to 2.0 parts of a macromolecular compatibilizer; 2.0 to 4.0 parts of a functional modifier; 15-30 parts of pigment and filler; 0.3 to 1.0 part of an antioxidant; 0.2 to 0.6 part of a light stabilizer; 0.2 to 0.5 part of a lubricant; the components are respectively subjected to processes of filler pretreatment, mixing, extrusion and granulation, and a specific side charging process is utilized to prepare the composite material. The novel PP material for the turnover box effectively solves the problems of poor impact resistance, aging resistance and wear resistance of the PP material for the turnover box in the prior art.

This invention relates to a method for preparing thermotropic liquid crystal polymers, in which multiple catalysts are added in combination to the polymerization system of thermotropic liquid crystal polyarylates, which greatly accelerates the polymerization reaction rate and obtains a polymer product with high storage modulus, strong mechanical properties and low dielectric constant.

The application discloses a preparation method and application of glycidyl ether type epoxy resin adhesive, and relates to the technical field of high polymer composite materials. The glycidyl ether type epoxy resin has a bicyclic triterpene phenol structure; the adhesive contains the glycidyl ether type epoxy resin and a curing agent; the bicyclic triterpene phenol structure is introduced into the glycidyl ether type epoxy resin; the bicyclic triterpene phenol structure has a three-dimensional non-planar bridged ring characteristic; the structure can reduce the resin viscosity and water absorption rate; and the glycidyl ether type epoxy resin adhesive has excellent impact toughness, waterproof and leak-stopping performance and the advantages of green environmental protection and low VOC.