117results about How to "Improve self-adhesiveness" patented technology

The invention discloses a polypropylene composite material capable of realizing 3D (three-dimensional) printing and a preparation method thereof. The polypropylene composite material is prepared by mixing the following raw material ingredients in parts by weight: 100 parts of polypropylene, 10 to 150 parts of toughening agents, 30 to 300 parts of inorganic filler, 5 to 100 parts of thickening agents and 1 to 30 parts of surfactants, wherein the toughening agents are thermoplastic vulcanized rubber; the inorganic filler is calcium carbonate and / or talcum powder; the thickening agents are chlorinated polyethylene; the surfactants are stearic acid and / or titanate. The preparation method comprises the following steps that firstly, the inorganic filler and the surfactants of the quantities are stirred at high speed; then, a mixture and other ingredients of the quantities are subjected to melt blending; the polypropylene composite material capable of realizing the 3D printing is prepared. The polypropylene composite material has high toughness and low shrinkage, and is a good 3D printing material.

The invention relates to a silicon-free heat-conducting gasket and a preparation method thereof. The silicon-free heat-conducting gasket comprises the following raw materials in parts by weight: 100 parts of acrylics resin, 100-1000 parts of heat conduction powder, 10-40 parts of a plasticizer,1-10 parts of a vulcanizing agent, 0-3 parts of a scorch retarder, and 0-3 parts of pigment, the prepared silicon-free heat-conducting gasket provided by the invention has good insulativity, excellent ageing resistance property, high flexibility and good autohension, is not undergoing oil leakage even though being used for a long time, and is particularly suitable for heat conduction filling gap of a silicone oil sensitive occasion.

A packaging unit formed from a sheet of material having an inner surface, an outer surface and one folding axis dividing the sheet into a first region and a second region. The inner surface includes an inner edge portion and an outer edge portion, wherein one of the inner edge portion and the outer edge portion of the edge zone of the first region is provided with adhesive, and the other of the inner edge portion and the outer edge portion of the edge zone of the first region is adhesive-free. One of the inner edge portion and the outer edge portion of the edge zone of the second region is provided with adhesive, and the other of the inner edge portion and the outer edge portion of the edge zone of the second region is adhesive-free in a complementary manner to the edge zone of the first region.

The invention discloses a method for preparing high-performance natural rubber through a biological coagulation technology. The method comprises the steps of fresh latex symbiotic microorganism solidification, extruding dehydration, crepe pressing, cleaning, granulation, drying and packaging. According to the fresh latex symbiotic microorganism solidification technology, cultured symbiotic bacteria solidification liquid and fresh latex are mixed and placed into a constant-temperature solidification box for constant-temperature solidification, and steps are executed, and finally the high-performance natural rubber is obtained. Mass industrial production can be achieved, and rapid odorless solidification of latex is achieved; due to rapid biological solidification, little non-rubber matter of natural rubber latex is decomposed, it is ensured that the chemical and physical properties of a solidified white gelatinous lump are quite high, strain induced crystallization can easily occur on the obtained high-performance rubber, and therefore the high-performance rubber has quite high autohension, good green strength and excellent processing performance.

The invention belongs to the technical field of plastic package, in particular to a high-strength puncture-resistant auto-adhesive protective film. The high-strength puncture-resistant auto-adhesive protective film is prepared through three layers of coextrusion blow molds , the inner layer is obtained by mixing mLLDPE and EVA, the middle layer is obtained by mixing the mLLDPE and LLDPE, and the outer layer is obtained by mixing random anti-shock co-polypropylene and the LLDPE. The high-strength puncture-resistant auto-adhesive protective film is obtained by screening, preparing and coextrusion blow molding of three layers of raw materials, all layers have good consistency and a high caking property, and the obtained thin film is high in auto-adhesive performance, strength and puncture resistant and has excellent optical transparence. The high-strength puncture-resistant auto-adhesive protective film meets the packaging requirements of frozen fishes and shrimps, spike ices, sharp objects and the like owing to high strength and puncture resistance, the high-strength puncture-resistant auto-adhesive protective film can be widely used in the fields of normal temperature foods, frozen foods, electric equipment products, home furnishing, building materials, medicine, chemical engineering and the like.

A packaging unit formed from a sheet of material having an inner surface, an outer surface and one folding axis dividing the sheet into a first region and a second region. The inner surface includes an inner edge portion and an outer edge portion, wherein one of the inner edge portion and the outer edge portion of the edge zone of the first region is provided with adhesive, and the other of the inner edge portion and the outer edge portion of the edge zone of the first region is adhesive-free. One of the inner edge portion and the outer edge portion of the edge zone of the second region is provided with adhesive, and the other of the inner edge portion and the outer edge portion of the edge zone of the second region is adhesive-free in a complementary manner to the edge zone of the first region.

The invention discloses an agricultural tire crown compound of high filling tire reclaimed rubber. The agricultural tire crown compound is prepared from the following raw materials in parts by mass: 25 to 35 parts of standard rubber No.20; 15 to 25 parts of cis-butadiene rubber 9000; 10 to 50 parts of butadiene-styrene rubber 1502; 70 to 30 parts of tire reclaimed rubber; 3.0 to 5.0 parts of zinc oxide; 2.0 to 4.0 parts of stearic acid; 0.5 to 0.7 part of anti-aging agent BLE; 0.8 to 1.0 part of anti-aging agent RD; 1.5 to 2.5 parts of anti-aging agent 4020; 2.0 to 3.0 parts of protective wax; 55 to 65 parts of intermediate super carbon black N220; 9.0 to 12 parts of aromatic hydrocarbon oil; 1.5 to 2.5 parts of sulfur; 1.1 to 1.3 parts of accelerant NOBS; 1.0 to 2.0 parts of thermal oxidation resistant agent RF; 1.0 to 2.0 parts of homogenizing dispersant MS. The agricultural tire crown compound has the advantages that the processability of low-temperature emulsion aggregation of SBR (styrene butadiene rubber) is improved, resource recycling is realized, pollution is reduced, the environment is protected, and the production cost is reduced, etc.

The invention discloses a self-adhered rubber tape that is prepared from the following components in parts by mass: 100 parts of basic rubber, 30-50 parts of a tackifier, 20-40 parts of tackifying rubber, 50-200 parts of reinforcer, 10-20 parts of reinforced resin, 0.5-1.5 part of vulcanizing agent, 4-6 parts of an accelerant and 3-50 parts of carbon black. By adopting different types of rubber, the self-adhered rubber tape disclosed by the invention solves the problems of behavior of electricity, waterproofness, alkali resistance and acid resistance. By adopting a method of combining the tackifying resin with a tackifier, the self-adhering of a rubber strip is effectively improved. By adopting the terpene reinforced resin, the bonding strength is improved. By using a special formula, the self-adhered rubber tape disclosed by the invention can be used for self-adhered lapped electric wires in stress control of conductive and semi-conductive fields as well as insulative, waterproof, hermetic and insulative occasions.

The invention discloses a hot melting pressure-sensitive glue as well as a preparation method and application thereof. The hot melting pressure-sensitive glue comprises the following effective components in parts by weight: 55-70 parts of styrene segmented copolymer, 30-45 parts of tackifying resin, and 0.1-0.5 part of an antioxidant. The preparation method comprises the following steps: mixing styrene segmented copolymer, tackifying resin and antioxidant to obtain a mixture; pelletizing the mixture in water; drying. The hot melting pressure-sensitive glue is used for preparing a protection film; the hot melting pressure-sensitive glue is free from plasticizer such as mineral oil and polybutene oil; the problems of oil separating out and smoking in processing are avoided; a die head is notinfluenced; the production can be continuously carried out; generation of three wastes in production is avoided; the environmental pollution is avoided.

The invention discloses a high-viscosity self-adhesive protective film and a preparation method thereof, which comprises four layers of A outer layer, B middle layer, C middle layer and D inner layer. The raw materials of the four layers mainly include linear low density polyethylene, metallocene, SEBS, in the preparation method, adopts high-speed operation pressure box, multi-group extrusion screw method and raw materials are filtered through "candle-type screen changer" after high-temperature melting state with multiple layers. The protective film of the present invention has high self-adhesiveness, good stability, wide application range, more transparent appearance of the film, fewer crystal points on the film surface, and far higher physical properties than the traditional self-adhesive protective film. It is easy to stick and tear, and the protective effect is more prominent. Low cost, simple process, energy saving and environmental protection.

The present invention provides a cushion pad with improved durability without feeling of a foreign object.The present invention thus provides a system for detecting a deformation of a cushion pad, comprising;the cushion pad comprising a magnetic elastomer in which magnetic filler is dispersed in an elastomer and an arithmetic average roughness (Ra) is 0.5 to 10.0 μm, and a soft polyurethane foam which is integrated with the magnetic elastomer by adhesion, anda magnetic sensor that detects a magnetic change caused by a deformation of the cushion pad. The present invention also provides a production method thereof.

The invention discloses a vehicle flame-retardant sound-insulation noise-reduction rubber pad and a preparation method of the flame-retardant sound-insulation noise-reduction rubber pad. The sound-insulation noise-reduction flame-retardant rubber pad is prepared from the following raw materials in percentage by weight: 20-30% of ethylene propylene diene monomer rubber; 10-20% of paraffin oil, 3-5%of hydrogenated C5 petroleum resin, 5-10% of conductive carbon black, 10-20% of a flame retardant, 10-30% of sepiolite, 10-30% of mica, 1-2% of zinc oxide, 0.5-1% of stearic acid, 0.5-1% of sulfur, 1.0-3.0% of a crosslinking aid, 1-3% of a foaming agent and 1-1.8% of an anti-aging agent. Compared with the prior art, the preparation method of the vehicle flame-retardant, sound-insulation noise-reduction rubber pad is simple; all the raw materials are matched for use and the dosage is controlled; the prepared rubber pad product can be foamed under the condition of 140 to 200 DEG C; in this way,when a vehicle passes through a coating workshop, foaming and filling of the rubber pad in a metal plate can be synchronously achieved on a coating line, then the effects of damping, noise reduction,sound insulation and flame retardance are achieved, and the rubber pad can be widely applied to filling and sealing of the metal plate of a vehicle engine compartment and other metal plate parts of the vehicle.

The invention discloses a reaction ethylene-propylene-diene monomer butyl self-adhesive waterproof coiled material and a preparation method thereof. The reaction ethylene-propylene-diene monomer butylself-adhesive waterproof coiled material comprises an ethylene-propylene-diene monomer waterproof layer, a self-adhesive reactive butyl rubber layer is arranged at the bottom end of the ethylene-propylene-diene monomer waterproof layer, and a polyethylene waterproof adhesive layer isolating membrane is arranged at the bottom end of the self-adhesive reactive butyl rubber layer; wherein the ethylene propylene diene monomer waterproof layer is prepared from the following raw materials in parts by mass: 100-200 parts of ethylene propylene diene monomer, 50-100 parts of polyurethane, 10-20 partsof a mixed polyether, 20-30 parts of high-wear-resistant carbon black, 5-10 parts of zinc oxide, 10-15 parts of stearic acid and 5-10 parts of an accelerant. The ethylene-propylene-diene monomer butylself-adhesive waterproof coiled material has the beneficial effects that the toughness of the ethylene-propylene-diene monomer butyl self-adhesive waterproof coiled material is improved, and the situation that after construction tools, building materials and tools for cutting the coiled material fall off, the local waterproof coiled material is damaged is avoided.

The invention discloses a preparation method of a strong-autohension polyethylene preservative film. According to the invention, dioctyl phthalate and dioctyl adipate which are used as plasticizers are combined, and inorganic filler barium carbonate and aluminum oxide are combined, and then the extensibility and the obdurability of the preservative film are improved, so that the autohension of the preservative film is enhanced. The preparation method comprises the following steps: sequentially adding every component into a thermal mixer; starting up the thermal mixer, stirring the materials at high speed when the temperature rises to 90-100 DEG C for 10-14 minutes and then discharging the materials; introducing the materials into a low-speed cold mixer, stirring, reducing the temperature by using jacket cooling water in the cold mixer, and then discharging the materials; pre-heating a threaded rod and a cylinder head grinding tool in an extrusion film blowing machine to 115-125 DEG C, and then adding the mixed materials into the threaded rod in the extrusion film blowing machine for film extrusion.