37results about How to "Good rigidity and flexibility" patented technology

The present invention is an interior material for a vehicle having a skin layer and a base layer. The skin layer contains an olefin-based thermoplastic elastomer, a polyolefin resin, a polylactic acid resin and a styrene-based thermoplastic elastomer, in amounts of respectively 20% to 70% by weight, 10% to 50% by weight, 5% to 30% by weight and 5% to 30% by weight based on 100% by weight of the total of these. The base layer is preferably a thin layer in which a natural fiber is dispersed in a phase of a thermoplastic resin such as a polyolefin resin, or a polyurethane foam layer.

The invention discloses a thermosetting resin composition. The thermosetting resin composition is prepared from the materials in parts by weight: (a) 100 parts of epoxy resin, (b) 50-200 parts of unsaturated polyester active-ester resin shown in the structural formula (I), (c) 10-200 parts of resin which contains maleimido and vinyl simultaneously and is shown in the structural formula (II), (d) 10-200 parts of cyanate ester resin and (e) 0.05-4 parts of an accelerant. Through unsaturated-bond reactivity between unsaturated polyester active-ester, the resin which contains the maleimido and thevinyl simultaneously and cyanate ester, the epoxy resin, the maleimide resin and the cyanate ester resin are effectively combined in a resin system, and thus a cured resin composition has excellent dielectricity, heat resistance, strength and stiffness and flexibility, is high in peel strength, low in water absorption and small in hot-shrinkage rate, and can be applied to high-speed and high-frequency printed circuit boards.

The present invention discloses a thermosetting resin composition, which comprises (calculated as the solid weight): (a) 10-80 parts of a hydrocarbon resin, (b) 20-100 parts of maleimide ester, (c) 0.1-8 parts of an initiator, and (d) 5-100 parts of an epoxy resin. According to the present invention, the maleimide ester having the polyfunctional long-chain structure and the rigid imide ring is used and is matched with the hydrocarbon resin having the flexibility to form the thermosetting composition, such that the thermosetting resin composition and the prepared printed circuit prepreg and laminated plate produced by using thermosetting resin composition have characteristics of excellent dielectric property, excellent heat resistance, excellent adhesion, excellent flame retardancy, excellent flexural strength, excellent toughness, high peel strength, low water absorption, excellent processability and the like through the interaction between the hydrocarbon resin and the maleimide ester.

The present invention discloses a thermosetting resin composition. The composition comprises the following components, in parts by weight: (a) 100 parts of epoxy resin; (b) 50-200 parts of unsaturatedpolyester active ester resin; (c) 10-200 parts of vinyl benzyl modified phenolic resin; and (d) 0.05-4 parts of an accelerant. According to the composition provided by the invention, the unsaturatedpolyester active ester resin can effectively combine an active ester curing epoxy resin system, a hydrocarbon resin curing system and a vinyl benzyl modified phenolic resin system through chemical bonding, the excellent properties of the active ester curing epoxy system, the excellent properties of the hydrocarbon resin and the excellent properties of the vinyl benzyl modified phenolic resin system are combined effectively, so that the resin composition has excellent dielectric properties, heat resistance, strength, stiffness flexibility, high peeling strength, a low water absorption ratio anda low heat shrinkage ratio after being cured, and can be applied to high-speed high-frequency printed circuit boards.

The invention discloses a thermosetting resin composition. The thermosetting resin composition is prepared from, by solid weight: (a) 10-80 parts of hydrocarbon resin; (b) 100 parts of phosphoric maleimide; (c) 0.1-8 parts of initiator; (d) 5-100 parts of epoxy resin. he thermosetting resin composition applies the maleimide with multi-functional long-chain structure and rigid imide ring and combines with a flexible hydrocarbon resin to form a thermosetting composition through the interaction, and finally makes the thermosetting resin composition and prepregs and laminates produced by using the same for the printed circuit have the characteristics of excellent dielectrical property, heat resistance, adhesion, flame resistance, bending strength, toughness, high peel strength, low water absorption, excellent processing performance and others.

The invention discloses a thermosetting resin composition which is prepared from the following components in parts by weight: (a) 100 parts of epoxy resin, (b) 50-200 parts of unsaturated polyester active ester resin, (c) 10-200 parts of vinyl modified polyphenyl ether ester, and (d) 0.05-4 parts of an accelerant. The unsaturated polyester active ester resin can combine an active ester cured epoxyresin system, a hydrocarbon resin curing system and a polyphenyl ether system effectively by means of chemical bonds and combine excellent performance of the active ester cured epoxy resin system, the hydrocarbon resin curing system and the polyphenyl ether system effectively, so that the resin composition which is cured has excellent dielectric property, heat resistance, strength, stiffness andflexibility, high peel strength, low water absorption and small heat shrinkage, and can be applied to high speed and high frequency printed circuit boards.

The invention discloses high-temperature-resistant anti-radiation mortar and a preparation method thereof, and belongs to the technical field of anti-radiation mortar. The high-temperature-resistant anti-radiation mortar consists of the following components in parts by weight: 5 to 15 parts of cement, 6 to 10 parts of mineral powder, 3 to 5 parts of dispersed emulsion powder, 30 to 50 parts of vitrified micro-beads, 2 to 4 parts of glass fibres, 2 to 4 parts of aluminium oxide, 3 to 5 parts of perlite powder, 5 to 7 parts of nano-lead particles, and 2 to 4 parts of rubber powder. The invention aims to provide the high-temperature-resistant anti-radiation mortar and the preparation method thereof. The inherent characteristics of the aluminium oxide and the nano-lead particles are utilized and are combined with the interactions of other components, so that the high-temperature-resistant anti-radiation mortar has good rigid-flexible characteristics, does not layer, segregate and sag, has high structural stability under a high temperature, and meanwhile, has the characteristics of corrosion resistance, wear resistance and the like, and has high anti-radiation performance; the safety level of the anti-radiation mortar is improved.

The invention relates to the field of organic material technology, and provides a porphyrin copolymer containing benzothiadiazole unit, which is a copolymer expressed in a structural formula (1). Wherein R1, R2, R3, R4, R5, R6 are selected from alkyl of C1 to C32; n is an integer of 1 to 200. The invention also provides a method for preparing the porphyrin copolymer containing benzothiadiazole unit and an application. The porphyrin copolymer containing benzothiadiazole unit has excellent light stability and heat stability due to a fluorenes porphyrin structure and benzothiadiazole unit. And the benzothiadiazole unit is introduced in the polymer for widening a spectral response range of the polymer.

The invention belongs to the field of optoelectronic materials and discloses a metalloporphyrin-thienothiadiazole organic semiconductor material and a preparation method and application thereof. The metalloporphyrin-thienothiadiazole organic semiconductor material has a structural formula (P) shown in the specification, wherein in the formula, n is an integer from 1 to 100; R1, R2, R3 and R4 are H, C1-C32 alkyl, phenyl and alkylbenzene or alkoxy benzene containing one or more C1-C32; and M is a metal ion. The metalloporphyrin-thienothiadiazole organic semiconductor material has good film-forming property, strong absorbance and wide light absorption range, thus improving the sunlight use ratio of the material. The material also has better heat stability and environmental stability. Besides, the preparation method is simple in process and easy to operate and control.

The invention provides a cutting-resistant glove processing technology, and relates to the field of labor protection gloves. The cutting-resistant glove processing technology includes the steps: glovecore preparation; glove core coating. Inner yarns and outer yarns are interwoven to form a glove core, polyethylene fibers with super-high relative molecule weight and bamboo-carbon modified polyester fibers wrap carbon fibers to form the outer yarns, and polyethylene fibers with super-high relative molecule weight and nylon fibers spirally wrap polyurethane filaments to form the inner yarns. A coating method of the glove core particularly includes the step: coating a composite material outside the woven glove core. The cutting-resistant glove processing technology is simple, large-scale automation production can be achieved, a processed cutting-resistant glove has excellent cutting resistance, comfortable and portable to wear and long in service life, hand flexibility is good, and replacing frequency is reduced.

The invention provides a metalloporphyrin complex and an organic electroluminescent device thereof, and belongs to the technical field of organic photoelectric materials. The invention discloses a metalloporphyrin complex, which contains a porphyrin-containing unit and has a macrocyclic delocalized [pi] electron conjugated system with a planar structure. The quantum efficiency of charge transfer and energy transfer reactions is high, the quantum efficiency has good electron buffering performance and photoelectric magnetism, good rigidity and flexibility and good thermal stability and environmental stability, collision between triplet excitons is reduced, and the problem of roll-off of the efficiency of the device under high current density is solved. The organic light-emitting device prepared by using the complex as an object doping material has the advantages of low driving voltage and high light-emitting efficiency, and is an organic light-emitting material with excellent performance.

The invention discloses a preparation method of a polyimide diaphragm, which comprises the following steps: reacting p-phenylenediamine or 4,4-diaminodimethyl ether with pyromellitic dianhydride or 3,3,4,4-biphenyl tetracarboxylic dianhydride in N-methyl pyrrolidone to obtain a polyamide acid solution; uniformly mixing the polyamic acid solution with dimethyl carbonate to obtain polyamic acid slurry; spreading the polyamide acid slurry uniformly on the horizontal conveying film by controlling the thickness of the polyamide acid slurry, wherein the polyamide acid slurry uniformly adheres to thehorizontal conveying film, and a polyamide acid film is obtained; and extracting the polyamide acid film, removing the horizontal transfer film, drying the film to obtain a diaphragm precursor, and dehydrating the film at high temperature to obtain the polyimide diaphragm. According to the invention, the molecular structure is designed, so that the prepared polyimide diaphragm has better rigidityand flexibility; in addition, a large number of hydrogen bonds appear among polyimide molecules, and the interaction among the polyimide molecules is improved, so that the prepared polyimide diaphragm has relatively good thermal stability.

The invention discloses a radiation protection mortar used for isolating nuclear leak. The radiation protection mortar comprises the following ingredients in parts by weight: 10-20 parts of cement, 6-10 parts of mineral powder, 25-40 parts of river sand, 8-10 parts of a dispersed latex powder, 8-15 parts of barite particles, 6-10 parts of polyphenyl ether, 8-12 parts of nano-lead particles, 8-12 parts of polyvinylidene fluoride, and 10-15 parts of graphite particles. The invention aims at providing the radiation protection mortar used for isolating nuclear leak, the radiation protection mortar used for isolating nuclear leak has the characteristics of excellent rigidity and flexibility, good structure stability at high temperature state, corrosion resistance and wear resistance, is not layered, does not segregate, and does not sagging; a wall body built from the radiation protection mortar can isolate and shield alpha rays, beta rays and gamma rays in nuclear radiation, and the harm of the nuclear radiation on people or materials on the other side of the wall body is greatly reduced.

The invention relates to a copolymer material containing carbazole porphyrin-triphenylamine and a preparation method and application thereof. The copolymer material has a structural formula (III) shown in the specification, wherein n is an integral number of between 1 and 100; R1 and R2 are H or alkyl groups having 1 to 32 carbon atoms. In the copolymer material with the structural formula, the advantages of carbazole, porphyrin and triphenylamine compounds are fully utilized, so the copolymer material has the high energy conversion efficiency, and can be widely applied to fields of organic semiconductor materials, polymer solar cells, organic electrofluorescence, organic field effect transistors, organic laser storage, organic non-linear materials, organic laser and the like.

A porphyrin copolymer containing thienothiadiazole units, preparation method and uses thereof are disclosed. The copolymer has the structural formula (I), wherein: R 1 , R 2 , R 3 , R 4 are same or different and each represents a C 1 -C 32 alkyl; n is an integer of 1-100. The copolymer comprises fluorene units, thienothiadiazole units and porphyrin units, which enhance the density of electron cloud in copolymer skeleton, make the band-gap of the copolymer become narrow, thereby broaden the spectral response range of the copolymer, and improve the photoelectric transformation efficiency.