CN102977528A - Nano sepiolite powder modified composite sound absorbing material and preparation method thereof - Google Patents
Nano sepiolite powder modified composite sound absorbing material and preparation method thereof Download PDFInfo
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- CN102977528A CN102977528A CN2012104779383A CN201210477938A CN102977528A CN 102977528 A CN102977528 A CN 102977528A CN 2012104779383 A CN2012104779383 A CN 2012104779383A CN 201210477938 A CN201210477938 A CN 201210477938A CN 102977528 A CN102977528 A CN 102977528A
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Abstract
The invention discloses a nano sepiolite powder modified composite sound absorbing material. The material is prepared from the following raw materials in parts by weight: 100-120 parts of barite powder, 50-60 parts of ceramsite, 40-50 parts of nano sepiolite powder, 80-90 parts of polyvinyl acetate emulsion, 55-65 parts of modified tree ashes, 15-20 parts of mica powder, 20-30 parts of mineral wool fibers, 10-20 parts of nanocarbon, 20-30 parts of EVA (ethylene-vinyl acetate copolymer), 15-20 parts of CPE (chlorinated polyethylene), 5-10 parts of ABS (acrylonitrile butadiene styrene), 5-8 parts of glycerin triacetate, 4-6 parts of tricresyl phosphate, 1-2 parts of di(isooctyl thioglycolate) di-n-octyl tin and 2-3 parts of zinc stearate. The material has the beneficial effects that the problem of developing and researching the sound absorbing material urgently is solved and the novel sound absorbing material which meets the requirements, can stand the tests of harsh environments and has the advantages of high tensile strength, high elongation, high breaking strength, good sound absorbing effect and the like is prepared.
Description
Technical field
The present invention relates to composite sound-absorbing material of a kind of nanometer sepiolite powder modification and preparation method thereof, belong to investigation of materials and production technical field.
Background technology
Along with the development of industrial production, communications and transportation, urban architecture, and the increase of the density of population, the increasing of home amenity (sound equipment, air-conditioning, televisor etc.), neighbourhood noise is day by day serious, and it has become large public hazards of polluting the human society environment.Noise not only can affect hearing, but also people's cardiovascular systems, neural system, endocrine system had a negative impact.
Existing sound absorbent material also has compound, but the compound performance index excellence of inorganic material and organic materials is less.See on the whole, China's sound absorbent material industry product working ability is not enough, in the research and development of high-end sound absorbent material with produce and exist larger gap compared with developed countries, as: all kinds vehicles (passenger vehicle, subway, high ferro), especially in recent years the demand of the sound absorbent material such as manned spacecraft, also lack with the market-construction industry of product maximum and to be connected, lack market awareness and building products working ability.Therefore, be badly in need of at present that research and development are a kind of can to stand the harsh and unforgiving environments test, have the tensile strength height, elongation is high, breaking tenacity is high, sound-absorbing effect good and the sound-absorbing material of the advantage such as low cost of manufacture.
Summary of the invention
The object of the invention is to, composite sound-absorbing material of a kind of nanometer sepiolite powder modification and preparation method thereof is provided, solves the prescription of matrix material, reduce the production cost that adopts single kind or plurality of raw materials, improve simultaneously the tensile strength of sound-absorbing effect and the material of material, elongation, breaking tenacity.Be used for the spray silk and make acoustical cotton.
The technical solution used in the present invention is as follows:
The composite sound-absorbing material of a kind of nanometer sepiolite powder modification, its raw material by following weight part is made: ground barium sulfate 100-120, haydite 50-60, nanometer sepiolite powder 40-50, polyvinyl acetate emulsion 80-90, modification trees ashes 55-65, mica powder 15-20, mineral wool fibre 20-30, nano-sized carbon 10-20, EVA 20-30, CPE 15-20, ABS 5-10, Vanay 5-8, tritolyl phosphate 4-6, Imarcaptoacetate dioctyltin 1-2, Zinic stearas 2-3.
Described modification trees ashes are made by following methods: use first 10-15% salt acid soak trees ashes 3-4h, deionized water wash is clean, soak 3-4h with the 10-12% sodium hydroxide solution again, extremely neutral with deionized water wash again, oven dry, add and be equivalent to the sodium lignosulfonate of trees ashes weight 2-3%, the Union carbide A-162 of 1-2%, the epoxidation tri-glyceride of 2-3%, the ceramics powder of 3-5%, high speed 1200-1500r/min stirs 20-30min, and the ovendry power breakdown mill becomes ultrafine powder to get final product.
The composite sound-absorbing material preparation method of nanometer sepiolite powder modification may further comprise the steps:
(1) ground barium sulfate, haydite, nanometer sepiolite powder is dry except moisture respectively, drying temperature is 110-120 ℃, be 2-3h time of drying, by pressing afterwards formulation ratio ground barium sulfate, haydite, nanometer sepiolite powder, mica powder, polyvinyl acetate emulsion are added in the high-speed mixer, speed with 500-800rpm under 150-160 ℃ mixes 3-5min, add modification trees ashes again and continue blend 5-8min, it is stand-by that material is cooled to normal temperature;
(2) EVA, ABS, CPE, Vanay, tritolyl phosphate, Imarcaptoacetate dioctyltin, Zinic stearas being added Mixers with Multi-direction Movement carries out just mixed, just mixed 4-6min, then enter high-speed mixer, add nano-sized carbon, mineral wool fibre, speed with 1500-2000rpm under 105-110 ℃ stirs 2-5min, and it is stand-by that material is cooled to normal temperature;
(3) material that above-mentioned steps (1) and step (2) is made adds twin screw mixings forcing machine to be processed, and requires 180-280 ℃ of Temperature Setting scope according to product index, then with the material input granulator granulation of extruding, namely gets the composite sound-absorbing material.
Beneficial effect of the present invention is as follows:
The present invention passes through formula adjustment and process modification, utilize the inorganic powders such as modification trees ashes clad nano sepiolite powder, ground barium sulfate, thereby improve sound-absorbing effect and the intensity of sound absorbent material, solved well the contradiction that sound absorbent material intensity and sound absorption qualities can not get both.The invention solves the research and development problem of present anxious sound absorbent material, produced the harsh and unforgiving environments that can stand that satisfies the demands and tested, have the sound-absorbing material of the advantages such as tensile strength height, elongation is high, breaking tenacity is high, sound-absorbing effect is good.Owing to adopted the inorganic material of larger proportion, therefore reduced production cost, because the intensity of inorganic material is higher, improved the mechanical property of material simultaneously.
Embodiment
The composite sound-absorbing material of a kind of nanometer sepiolite powder modification, its raw material by following weight part is made: 112 parts of ground barium sulfates, 55 parts of haydites, 50 parts of nanometer sepiolite powders, 90 parts of polyvinyl acetate emulsions, 60 parts in modification trees ashes, 20 parts of mica powders, 25 parts of mineral wool fibres, 16 parts of nano-sized carbon, 16 parts of 28 parts of EVA, CPE, 8 parts of ABS, 6 parts of Vanays, 5 parts of tritolyl phosphates, 1.5 parts of Imarcaptoacetate dioctyltins, 2 parts of Zinic stearass.
Wherein, described modification trees ashes are made by following methods: use first 12% salt acid soak trees ashes 4h, deionized water wash is clean, soak 4h with 12% sodium hydroxide solution again, extremely neutral with deionized water wash again, oven dry adds and is equivalent to the sodium lignosulfonate of trees ashes weight 3%, 2% Union carbide A-162,2% epoxidation tri-glyceride, 5% ceramics powder, high speed 1200r/min stirs 30min, and the ovendry power breakdown mill becomes ultrafine powder to get final product.
The composite sound-absorbing material preparation method of nanometer sepiolite powder modification may further comprise the steps:
(1) ground barium sulfate, haydite, nanometer sepiolite powder is dry except moisture respectively, drying temperature is 110 ℃, be 3h time of drying, by pressing afterwards formulation ratio ground barium sulfate, haydite, nanometer sepiolite powder, mica powder, polyvinyl acetate emulsion are added in the high-speed mixer, speed with 800rpm under 155 ℃ mixes 4min, add modification trees ashes again and continue blend 6min, it is stand-by that material is cooled to normal temperature;
(2) EVA, ABS, CPE, Vanay, tritolyl phosphate, Imarcaptoacetate dioctyltin, Zinic stearas being added Mixers with Multi-direction Movement carries out just mixed, just mixed 5min, then enter high-speed mixer, add nano-sized carbon, mineral wool fibre, speed with 1700rpm under 110 ℃ stirs 3min, and it is stand-by that material is cooled to normal temperature;
(3) material that above-mentioned steps (1) and step (2) is made adds twin screw mixings forcing machine to be processed, and requiring Temperature Setting according to product index is 260 ℃, then with the material input granulator granulation of extruding, namely gets the composite sound-absorbing material.
Detect index: sound absorption coefficient 1.26, tensile strength 1447kPa, elongation 58%, breaking tenacity 5312N/m.4548 yuan/tons of costs.
Claims (3)
1. the composite sound-absorbing material of nanometer sepiolite powder modification, it is characterized in that its raw material by following weight part is made: ground barium sulfate 100-120, haydite 50-60, nanometer sepiolite powder 40-50, polyvinyl acetate emulsion 80-90, modification trees ashes 55-65, mica powder 15-20, mineral wool fibre 20-30, nano-sized carbon 10-20, EVA 20-30, CPE 15-20, ABS 5-10, Vanay 5-8, tritolyl phosphate 4-6, Imarcaptoacetate dioctyltin 1-2, Zinic stearas 2-3.
2. the composite sound-absorbing material of nanometer sepiolite powder according to claim 1 modification, it is characterized in that, described modification trees ashes are made by following methods: use first 10-15% salt acid soak trees ashes 3-4h, deionized water wash is clean, soak 3-4h with the 10-12% sodium hydroxide solution again, extremely neutral with deionized water wash again, oven dry, add the sodium lignosulfonate that is equivalent to trees ashes weight 2-3%, the Union carbide A-162 of 1-2%, the epoxidation tri-glyceride of 2-3%, the ceramics powder of 3-5%, high speed 1200-1500r/min stirs 20-30min, and the ovendry power breakdown mill becomes ultrafine powder to get final product.
3. the composite sound-absorbing material preparation method of a nanometer sepiolite powder as claimed in claim 1 modification is characterized in that may further comprise the steps:
(1) ground barium sulfate, haydite, nanometer sepiolite powder is dry except moisture respectively, drying temperature is 110-120 ℃, be 2-3h time of drying, by pressing afterwards formulation ratio ground barium sulfate, haydite, nanometer sepiolite powder, mica powder, polyvinyl acetate emulsion are added in the high-speed mixer, speed with 500-800rpm under 150-160 ℃ mixes 3-5min, add modification trees ashes again and continue blend 5-8min, it is stand-by that material is cooled to normal temperature;
(2) EVA, ABS, CPE, Vanay, tritolyl phosphate, Imarcaptoacetate dioctyltin, Zinic stearas being added Mixers with Multi-direction Movement carries out just mixed, just mixed 4-6min, then enter high-speed mixer, add nano-sized carbon, mineral wool fibre, speed with 1500-2000rpm under 105-110 ℃ stirs 2-5min, and it is stand-by that material is cooled to normal temperature;
(3) material that above-mentioned steps (1) and step (2) is made adds twin screw mixings forcing machine to be processed, and requires 180-280 ℃ of Temperature Setting scope according to product index, then with the material input granulator granulation of extruding, namely gets the composite sound-absorbing material.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103937137A (en) * | 2014-04-18 | 2014-07-23 | 安徽省中日农业环保科技有限公司 | Wear-resistant and flame-retardant composite sound-absorbing board material added with additive and preparation method of material |
| CN104119596A (en) * | 2014-07-02 | 2014-10-29 | 合肥和安机械制造有限公司 | Modified sepiolite used for a polyethylene corrugated pipe material and a preparing method of the modified sepiolite |
| CN104761835A (en) * | 2015-03-04 | 2015-07-08 | 浙江万佳热电器科技有限公司 | Preparation technology for electrothermal film heating pipe composite noise reduction material |
| CN106128447A (en) * | 2016-08-16 | 2016-11-16 | 苏州市云林电子有限公司 | A kind of composite sound-absorbing foam |
| CN107163462A (en) * | 2017-06-05 | 2017-09-15 | 合肥聪亨新型建材科技有限公司 | A kind of environmental protection flame retardant decoration sound-absorbing material and preparation method thereof |
| CN111423155A (en) * | 2020-03-31 | 2020-07-17 | 广东巨三实业有限公司 | Early strength water reducing agent and preparation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103937137A (en) * | 2014-04-18 | 2014-07-23 | 安徽省中日农业环保科技有限公司 | Wear-resistant and flame-retardant composite sound-absorbing board material added with additive and preparation method of material |
| CN103937137B (en) * | 2014-04-18 | 2016-01-20 | 安徽省中日农业环保科技有限公司 | A kind of abrasion resistant fire blocking composite sound-absorbing panel material adding auxiliary agent and preparation method thereof |
| CN104119596A (en) * | 2014-07-02 | 2014-10-29 | 合肥和安机械制造有限公司 | Modified sepiolite used for a polyethylene corrugated pipe material and a preparing method of the modified sepiolite |
| CN104761835A (en) * | 2015-03-04 | 2015-07-08 | 浙江万佳热电器科技有限公司 | Preparation technology for electrothermal film heating pipe composite noise reduction material |
| CN104761835B (en) * | 2015-03-04 | 2017-01-11 | 浙江万佳热电器科技有限公司 | Preparation technology for electrothermal film heating pipe composite noise reduction material |
| CN106128447A (en) * | 2016-08-16 | 2016-11-16 | 苏州市云林电子有限公司 | A kind of composite sound-absorbing foam |
| CN107163462A (en) * | 2017-06-05 | 2017-09-15 | 合肥聪亨新型建材科技有限公司 | A kind of environmental protection flame retardant decoration sound-absorbing material and preparation method thereof |
| CN111423155A (en) * | 2020-03-31 | 2020-07-17 | 广东巨三实业有限公司 | Early strength water reducing agent and preparation method thereof |
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| CN102977528B (en) | 2014-06-04 |
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