CN1283713C - Preparing method for acoustic insulating, damping and noise-decreasing sheets for car - Google Patents
Preparing method for acoustic insulating, damping and noise-decreasing sheets for car Download PDFInfo
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- CN1283713C CN1283713C CN 200410044985 CN200410044985A CN1283713C CN 1283713 C CN1283713 C CN 1283713C CN 200410044985 CN200410044985 CN 200410044985 CN 200410044985 A CN200410044985 A CN 200410044985A CN 1283713 C CN1283713 C CN 1283713C
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Abstract
The present invention provides an acoustic insulating, damping and noise decreasing thermoplastic sheet for a car. Modified functional granular raw materials are mixed by a high-speed mixer. Then, modified functional granules are prepared by a double-screw extrusion granulator, and the modified functional granules are made into the medium and high filled acoustic insulating, damping and noise decreasing thermoplastic sheet for the car by the sheet or plate extrusion production line. Each modified functional granule comprises the following components (by mass percentage): 27.6 to 70.4% of polyethyl resin, 28 to 68% of inorganic filler, 0.4 to 1.5% of coupling agent, 0.4 to 0.8% of lubricating agent, 0.1 to 0.7% of antioxidant, 0.3 to 0.8% of dilution dispersing agent and 0.4 to 1.0% of halogen absorbent. After the modified functional granular raw materials are added into the high-speed mixer to be heated to 70DEGC, the modified functional granular raw materials are cooled to normal temperature. A feed cylinder of the double-screw extrusion granulator is controlled to 100 to 170 DEG C, and a granulator head is controlled to 140 to 200 DEG C. A main extruder of an extruder of the sheet extrusion production line is controlled to 90 to 170 DEG C, and an extruder head is controlled to 120 to 200 DEG C.
Description
Technical field
The present invention relates to the moulding or the connection of plastics; be meant that especially a kind of employing high-speed mixer carries out combination treatment to modification function pellet starting material such as polyethylene matrix resin, mineral fillers; prepare modification function pellet by the double-screw extruding pelletizing unit then, high car of the filling preparation method of sound-proof damping noise reduction thermoplastic sheets during modification function pellet is made by sheet material or sheet material extruding production line again.
Background technology
At present domestic automobile-used obstruct sheet material mainly is that pitch intercepts sheet material, pitch intercept sheet material be a kind of be a large amount of inorganics filled sheet material of continuous items with pitch, be used for the more smooth floor of truck or car more.Though this sheet material has the characteristics of good barrier property, but because the strength of materials is low, can't moulding, cause vehicle assembling difficulty of construction big, the defective that the time is long, simultaneously because original, the noise reducing damping narrow spectrum of constructional method has also influenced the further raising of domestic automobile manufacture level and automobile class.
Summary of the invention
Technical problem to be solved by this invention just is to overcome existing domestic automobile-used barrier flaps unit construction method primary defective; provide a kind of employing high-speed mixer that modification function pellet starting material such as polyethylene matrix resin, mineral filler are carried out combination treatment; prepare modification function pellet by the double-screw extruding pelletizing unit then, the high preparation method who fills car with sound-proof damping noise reduction thermoplastic sheets during modification function pellet is made by sheet material or sheet material extruding production line again.This thermoplastic sheets can become the goods of different shape by the thermoforming secondary processing, goods are further at its lower surface cast flexible PU foam, thermoplastic sheets and flexible PU foam have bigger bonding strength, the sound-proof damping de-noising pad that thermoplastic sheets and flexible PU foam is become one be used as car.The high car of filling adopts high-speed mixer that modification function pellet starting material such as polyethylene matrix resin, mineral filler are carried out combination treatment with sound-proof damping noise reduction thermoplastic sheets in of the present invention; prepare modification function pellet by the double-screw extruding pelletizing unit then, high car of filling sound-proof damping noise reduction thermoplastic sheets during modification function pellet is made by sheet material or sheet material extruding production line again.
(1) modification function pellet starting material high-speed mixing: modification function granular component proportioning (mass percent) polyvinyl resin 27.6-70.4%, mineral filler 28-68%, coupling agent 0.4-1.5%, lubricant 0.4-0.8%, oxidation inhibitor 0.1-0.7%, dilution dispersion agent 0.3-0.8%, halogen-absorber 0.4-1.0%; Modification function pellet starting material are added after high-speed mixer is warming up to 70 ℃ than order according to set of dispense, through being cooled to normal temperature.
(2) the double-screw extruding pelletizing unit prepares modification function pellet: will prepare modification function pellet by double-screw extruding pelletizing unit extruding pelletization through high-speed mixer blended material; 100-170 ℃ of double-screw extruding pelletizing machine barrel controlled temperature, 140-200 ℃ of head controlled temperature.
(3) the sheet material extruding production line is made sound-proof damping noise reduction thermoplastic sheets: modification function pellet is made sound-proof damping noise reduction thermoplastic sheets by the sheet material extruding production line, 90-170 ℃ of sheet material extruding production line forcing machine host computer control temperature, 120-200 ℃ of head controlled temperature.
Polyvinyl resin comprises (1) polyethylene, as new LDPE (film grade) (LDPE), linear low density polyethylene (LLDPE) etc.; (2) ethylene copolymer is as ethylene-vinyl acetate copolymer (EVA), ethylene propylene rubber (EPR), terpolymer EP rubber (EPDM), polyolefin elastomer (POE) etc., a kind of or several mixture in this two resinoid.Select polyvinyl resin must meet following requirement: resin softening point or fusing point are 40-135 ℃.
Mineral filler comprises one or more mixtures in the materials such as the ultra-fine or nano level lime carbonate of particle diameter below 1 μ m, talcum powder, barium sulfate, glass microballon, quartz sand.
Coupling agent comprises (1) titanate coupling agent; as three different fatty acyl group isopropyl titanates, isopropyl tri (dioctylphosphato)titanate etc.; (2) silane coupling agent; as γ-An Bingjisanyiyangjiguiwan, vinyl three t-butylperoxy silane etc.; (3) aluminate coupling agent etc., a kind of or several mixture in this three classes coupling agent.
Lubricant comprises one or more mixtures in the lubricants such as stearic acid, polyethylene wax.
Oxidation inhibitor comprises the single phenolic antioxidant of (1) alkylation, as antioxidant CA, antioxidant 2246, antioxidant 1010, antioxidant 330 etc., (2) thiobisphenol kind antioxidant, as antioxidant 300, oxidation inhibitor 736, antioxidant 2246-S, oxidation inhibitor 4426-S etc., a kind of or several mixture in this two kind antioxidant.
The dilution dispersion agent mainly is a white oil.
Halogen-absorber comprises one or more the mixture in the materials such as calcium stearate, Zinic stearas.
The forcing machine host computer control temperature of sheet material extruding production line is also different according to different forcing machine model controlled temperature with the head controlled temperature.Extrude unit (manufacturing of Shanghai forcing machine factory) as SJ90 * 30 plastic plates, 90-170 ℃ of forcing machine host computer control temperature, 120-170 ℃ of head controlled temperature, wherein the main frame temperature control is 1 section 90-100 ℃, the 2nd section 100-110 ℃, the 3rd section 110-120 ℃, the 4th section 120-140 ℃, the 5th section 130-150 ℃, the 6th section 150-170 ℃; The 1st section 140-170 ℃, the 2nd section 130-160 ℃, the 3rd section 130-160 ℃, the 4th section 140-170 ℃, the 5th section 120-150 ℃, the 6th section 120-150 ℃ of head temperature.The SYYP2200 plastic plate is extruded 170-200 ℃ of 130-170 ℃ of forcing machine main frame (barrel) controlled temperature of unit (manufacturing of Yongming, Changzhou plastic apparatus Manufacturing Co., Ltd), junction controlled temperature 150-160 ℃, head (die head) controlled temperature, and wherein main frame (barrel) temperature control is 1 section 130-140 ℃, the 2nd section 135-145 ℃, the 3rd section 140-150 ℃, the 4th section 150-160 ℃, the 5th section 140-150 ℃, the 6th section 155-165 ℃, the 7th section 160-170 ℃, the 8th section 160-170 ℃; 1 section 150-160 ℃, the 2nd section 150-160 ℃, the 3rd section 150-160 ℃, the 4th section 150-160 ℃, the 5th section 150-160 ℃ of junction temperature control; 1 section 170-200 ℃, the 2nd section 170-200 ℃, the 3rd section 170-200 ℃, the 4th section 170-200 ℃, the 5th section 170-200 ℃, the 6th section 170-200 ℃, the 7th section 170-200 ℃, the 8th section 170-200 ℃, the 9th section 170-200 ℃, the 10th section 170-200 ℃, the 11st section 170-200 ℃ of head (die head) temperature control.
When high filling car is produced with sound-proof damping noise reduction thermoplastic sheets in carrying out, earlier by modification function granular component proportion speed weighing polyvinyl resin, mineral filler, coupling agent, lubricant, oxidation inhibitor, dilution dispersion agent and halogen-absorber, modification function pellet starting material are added after high-speed mixer is warming up to 70 ℃ than order according to set of dispense, through being cooled to normal temperature.To prepare modification function pellet by double-screw extruding pelletizing unit extruding pelletization through high-speed mixer blended material then; modification function pellet color even, nothing connect grain, length is not more than 6mm; 100-170 ℃ of double-screw extruding pelletizing machine barrel controlled temperature; wherein the 1st section 100-110 ℃, the 2nd section 100-120 ℃, the 3rd section 110-130 ℃, the 4th section 120-150 ℃, the 5th section 120-150 ℃, the 6th section 130-170 ℃, 140-200 ℃ of head controlled temperature.Modification function pellet through double-screw extruding pelletizing machine extruding pelletization makes sound-proof damping noise reduction thermoplastic sheets by the sheet material extruding production line again, 90-170 ℃ of sheet material extruding production line forcing machine host computer control temperature, 120-200 ℃ of head controlled temperature.By the sound-proof damping noise reduction thermoplastic sheets that preparation method of the present invention makes, tensile strength reaches 6.5-12Mpa, elongation at break 460-660%, angle tear strength 25-32N/mm, density 1.20-1.65g/cm
3, vacuum forming thermoforming performance is good, surface no pit, crack-free, and the advantages of good caking property energy is arranged with polyurethane flexible foam, the open-air down placement of normal temperature did not come off more than six months.
Advantage of the present invention just is to adopt preparation method of the present invention to produce sound-proof damping noise reduction thermoplastic sheets, thermoplastic sheets is achieved as automobile-used obstruct sheet material in conjunction with polyurethane flexible foam, since thermoplastic sheets in conjunction with the use of polyurethane flexible foam material, realized the novel automobile barrier material production domesticization, improved the sound insulation and noise reduction performance of domestic car.Sound-proof damping noise reduction thermoplastic sheets of the present invention intercepts sheet material with pitch and compares, and has strength of materials height, the easy construction advantage of construction period time while shortening easily; Thermoplastic sheets as automobile-used obstruct sheet material, also makes the noise reducing damping frequency spectrum widen in conjunction with polyurethane flexible foam simultaneously, has improved the effect of sound insulation and noise reduction.Because high filling mineral filler also makes product cost reduce greatly in adopting.The use of sound-proof damping noise reduction thermoplastic sheets of the present invention has also further improved the class of domestic automobile manufacture level and automobile.Therefore the present invention has the vast market promotion prospect.
Embodiment
Below be an embodiment of invention, the actual use of the present invention is not limited to embodiment.
Embodiment 1, the car preparation method of sound-proof damping noise reduction sheet material
Major equipment SHR-100A type high-speed mixer, TE-50 parallel dual-screw extruding pelletization unit, SJ90 * 30 plastic plates are extruded unit.
Modification function granular component proportioning polyvinyl resin 65.3%, wherein EVA31.6%, LLDPE33.7%, mineral filler 31.6%, wherein talcum powder 21.1%, light calcium carbonate 10.5%, titanate coupling agent 0.68%, lubricant polyethylene wax 0.53%, oxidation inhibitor 0.42%, dilution dispersion agent white oil 0.63%, halogen-absorber Zinic stearas 0.53%.
Accurate weighing EVA (production of the trade mark 18/3 Beijing Chemical Plant) 15Kg, LLDPE (trade mark 7042 is raised sub-petrochemical iy produced) 16Kg, talcum powder (production of 1250 order Zhejiang Johson ﹠ Johnson) 10Kg, light calcium carbonate (production of 800 order Changzhou lime carbonate factories) 5Kg, polyethylene wax (fusing point 100-120 ℃ of Chengdu, Sichuan produces with devote every effort to help agent company limited) 250g, oxidation inhibitor (the big chemical industry company limited in sea, oxidation inhibitor SK-1010 Qingdao produces) 200g, titanate coupling agent (the sharp evolution worker in newly developed area, trade mark CT114 Changzhou limited-liability company produces) 320g, white oil (15
#Silver-colored damp daily use chemicals company limited produced during raised in white oil Zhenjiang) 300g, Zinic stearas (zinc content is not less than 13%, and rich welfare plant produced is celebrated in the Liyang, changzhou) 250g.According to set of dispense than order join SHR-100A type high-speed mixer high speed mix be warming up to 70 ℃ after, through being cooled to normal temperature.To prepare modification function pellet by TE-50 parallel dual-screw extruding pelletization unit extruding pelletization through the material of high-speed mixing then; modification function pellet color even, nothing connect grain, length is not more than 6mm; 100-150 ℃ of double-screw extruding pelletizing machine barrel controlled temperature; wherein the 1st section 100-110 ℃, the 2nd section 100-110 ℃, the 3rd section 110-120 ℃, the 4th section 120-130 ℃, the 5th section 120-130 ℃, the 6th section 140-145 ℃, 150 ℃ of head controlled temperature.Modification function pellet through double-screw extruding pelletizing machine extruding pelletization makes sound-proof damping noise reduction thermoplastic sheets by SJ90 * 30 sheet material extruding production lines again, sheet material extruding production line forcing machine host computer control temperature: the 1st section 90-100 ℃, the 2nd section 100-110 ℃, the 3rd section 110-120 ℃, the 4th section 130-140 ℃, the 5th section 140-150 ℃, the 6th section 160-170 ℃; The 1st section 150-170 ℃, the 2nd section 140-160 ℃, the 3rd section 140-160 ℃, the 4th section 150-170 ℃, the 5th section 130-150 ℃, the 6th section 130-150 ℃ of head temperature.After testing: the sound-proof damping noise reduction thermoplastic sheets tensile strength that makes is 12Mpa, elongation at break 660%, angle tear strength 32N/mm, density 1.20g/cm
3, vacuum forming thermoforming performance is good, surface no pit, crack-free, and the advantages of good caking property energy is arranged with polyurethane flexible foam, the open-air down placement of normal temperature did not come off in nine months.
Embodiment 2, the car preparation method of sound-proof damping noise reduction sheet material
Major equipment is identical with embodiment 1.
Modification function granular component proportioning polyvinyl resin 65.5%, wherein EVA31.7%, LLDPE33.8%, mineral filler light calcium carbonate 31.7%, titanate coupling agent 0.68%, lubricant polyethylene wax 0.53%, oxidation inhibitor 0.42%, dilution dispersion agent white oil 0.63%, halogen-absorber Zinic stearas 0.53%.
Accurate weighing EVA (trade mark PE-3019 Brazil Imperial Chemical Industries company limited produces) 15Kg, LLDPE (trade mark 7042 is raised sub-petrochemical iy produced) 16Kg, light calcium carbonate (production of 1200 order Changzhou lime carbonate factories) 15Kg, polyethylene wax (fusing point 100-120 ℃ of Chengdu, Sichuan produces with devote every effort to help agent company limited) 250g, oxidation inhibitor (the big chemical industry company limited in sea, oxidation inhibitor SK-1010 Qingdao produces) 200g, titanate coupling agent (the sharp evolution worker in newly developed area, trade mark CT114 Changzhou limited-liability company produces) 320g, white oil (15
#Silver-colored damp daily use chemicals company limited produced during raised in white oil Zhenjiang) 300g, Zinic stearas (zinc content is not less than 13%, and rich welfare plant produced is celebrated in the Liyang, changzhou) 250g.According to set of dispense than order join SHR-100A type high-speed mixer high speed mix be warming up to 70 ℃ after, through being cooled to normal temperature.To prepare modification function pellet by TE-50 parallel dual-screw extruding pelletization unit extruding pelletization through the material of high-speed mixing then; modification function pellet color even, nothing connect grain, length is not more than 6mm; 100-160 ℃ of double-screw extruding pelletizing machine barrel controlled temperature; wherein the 1st section 100-110 ℃, the 2nd section 100-120 ℃, the 3rd section 120-130 ℃, the 4th section 130-140 ℃, the 5th section 140-150 ℃, the 6th section 150-155 ℃, 160 ℃ of head controlled temperature.Modification function pellet through double-screw extruding pelletizing machine extruding pelletization makes sound-proof damping noise reduction thermoplastic sheets by SJ90 * 30 sheet material extruding production lines again, sheet material extruding production line forcing machine host computer control temperature: the 1st section 90-100 ℃, the 2nd section 100-110 ℃, the 3rd section 110-120 ℃, the 4th section 120-130 ℃, the 5th section 130-140 ℃, the 6th section 150-160 ℃; The 1st section 140-160 ℃, the 2nd section 130-150 ℃, the 3rd section 130-150 ℃, the 4th section 140-160 ℃, the 5th section 120-140 ℃, the 6th section 120-140 ℃ of head temperature.After testing: the sound-proof damping noise reduction thermoplastic sheets tensile strength that makes is 10.5Mpa, elongation at break 630%, angle tear strength 30N/mm, density 1.21g/cm
3, vacuum forming thermoforming performance is good, surface no pit, crack-free, and the advantages of good caking property energy is arranged, normal temperature with polyurethane flexible foam in the open down placement do not come off in eight months.
Embodiment 3, the car preparation method of sound-proof damping noise reduction sheet material
Major equipment is identical with embodiment 1.
Modification function granular component proportioning polyvinyl resin 65.4%, wherein EVA52.7%, EPDM12.7%, mineral filler light calcium carbonate 31.6%, titanate coupling agent 0.67%, lubricant polyethylene wax 0.53%, oxidation inhibitor 0.63%, dilution dispersion agent white oil 0.63%, halogen-absorber Zinic stearas 0.53%.
Accurate weighing EVA (trade mark PE-3019 Brazil Imperial Chemical Industries company limited produces) 25Kg, EPDM (production of trade mark NDR3430 Beijing brightness in morning great achievement Science and Technology Ltd.) 6Kg, light calcium carbonate (production of 1200 order Changzhou lime carbonate factories) 15Kg, polyethylene wax (fusing point 100-120 ℃ of Chengdu, Sichuan produces with devote every effort to help agent company limited) 250g, oxidation inhibitor (the big chemical industry company limited in sea, oxidation inhibitor SK-1010 Qingdao produces) 300g, titanate coupling agent (the sharp evolution worker in newly developed area, trade mark CT114 Changzhou limited-liability company produces) 320g, white oil (15
#Silver-colored damp daily use chemicals company limited produced during raised in white oil Zhenjiang) 300g, Zinic stearas (zinc content is not less than 13%, and rich welfare plant produced is celebrated in the Liyang, changzhou) 250g.According to set of dispense than order join SHR-100A type high-speed mixer high speed mix be warming up to 70 ℃ after, through being cooled to normal temperature.To prepare modification function pellet by TE-50 parallel dual-screw extruding pelletization unit extruding pelletization through the material of high-speed mixing then; modification function pellet color even, nothing connect grain, length is not more than 6mm; 100-140 ℃ of double-screw extruding pelletizing machine barrel controlled temperature; wherein the 1st section 100-110 ℃, the 2nd section 100-110 ℃, the 3rd section 110-120 ℃, the 4th section 120-130 ℃, the 5th section 130-135 ℃, the 6th section 130-140 ℃, 140 ℃ of head controlled temperature.Modification function pellet through double-screw extruding pelletizing machine extruding pelletization makes sound-proof damping noise reduction thermoplastic sheets by SJ90 * 30 sheet material extruding production lines again, sheet material extruding production line forcing machine host computer control temperature: the 1st section 90-100 ℃, the 2nd section 100-110 ℃, the 3rd section 110-120 ℃, the 4th section 120-130 ℃, the 5th section 130-140 ℃, the 6th section 150-160 ℃; The 1st section 140-160 ℃, the 2nd section 130-150 ℃, the 3rd section 130-150 ℃, the 4th section 140-160 ℃, the 5th section 120-140 ℃, the 6th section 120-140 ℃ of head temperature.After testing: the sound-proof damping noise reduction thermoplastic sheets tensile strength that makes is 9.5Mpa, elongation at break 560%, angle tear strength 29N/mm, density 1.21g/cm
3, vacuum forming thermoforming performance is good, surface no pit, crack-free, and the advantages of good caking property energy is arranged, normal temperature with polyurethane flexible foam in the open down placement do not come off in ten months.
Embodiment 4, the car preparation method of sound-proof damping noise reduction sheet material
Major equipment is identical with embodiment 1.
Modification function granular component proportioning polyvinyl resin 53.5%, wherein EVA43.1%, EPDM 10.4%, mineral filler light calcium carbonate 43.2%, titanate coupling agent 0.73%, lubricant polyethylene wax 0.78%, oxidation inhibitor 0.52%, dilution dispersion agent white oil 0.52%, halogen-absorber Zinic stearas 0.78%.
Accurate weighing EVA (production of the trade mark 18/3 Beijing Chemical Plant) 25Kg, EPDM (production of trade mark NDR3430 Beijing brightness in morning great achievement Science and Technology Ltd.) 6Kg, light calcium carbonate (production of 1200 order Changzhou lime carbonate factories) 25Kg, polyethylene wax (fusing point 100-120 ℃ of Chengdu, Sichuan produces with devote every effort to help agent company limited) 450g, oxidation inhibitor (the big chemical industry company limited in sea, oxidation inhibitor SK-1010 Qingdao produces) 300g, titanate coupling agent (the sharp evolution worker in newly developed area, trade mark CT114 Changzhou limited-liability company produces) 420g, white oil (15
#Silver-colored damp daily use chemicals company limited produced during raised in white oil Zhenjiang) 300g, Zinic stearas (zinc content is not less than 13%, and rich welfare plant produced is celebrated in the Liyang, changzhou) 450g.According to set of dispense than order join SHR-100A type high-speed mixer high speed mix be warming up to 70 ℃ after, through being cooled to normal temperature.To prepare modification function pellet by TE-50 parallel dual-screw extruding pelletization unit extruding pelletization through the material of high-speed mixing then; modification function pellet color even, nothing connect grain, length is not more than 6mm; 100-140 ℃ of double-screw extruding pelletizing machine barrel controlled temperature; wherein the 1st section 100-110 ℃, the 2nd section 100-110 ℃, the 3rd section 110-120 ℃, the 4th section 120-130 ℃, the 5th section 130-135 ℃, the 6th section 130-140 ℃, 140 ℃ of head controlled temperature.Modification function pellet through double-screw extruding pelletizing machine extruding pelletization makes sound-proof damping noise reduction thermoplastic sheets by SJ90 * 30 sheet material extruding production lines again, sheet material extruding production line forcing machine host computer control temperature: the 1st section 90-100 ℃, the 2nd section 100-110 ℃, the 3rd section 110-120 ℃, the 4th section 130-140 ℃, the 5th section 140-150 ℃, the 6th section 160-170 ℃; The 1st section 150-170 ℃, the 2nd section 140-160 ℃, the 3rd section 140-160 ℃, the 4th section 150-170 ℃, the 5th section 130-150 ℃, the 6th section 130-150 ℃ of head temperature.After testing: the sound-proof damping noise reduction thermoplastic sheets tensile strength that makes is 6.5Mpa, elongation at break 460%, angle tear strength 25N/mm, density 1.35g/cm
3, vacuum forming thermoforming performance is good, surface no pit, crack-free, and the advantages of good caking property energy is arranged, normal temperature with polyurethane flexible foam in the open down placement do not come off in six months.
Embodiment 5, the car preparation method of sound-proof damping noise reduction sheet material
Major equipment SHR-100A type high-speed mixer, TE-65 parallel dual-screw extruding pelletization unit, SYYP2200 plastic plate are extruded unit.
Modification function granular component proportioning polyvinyl resin 58.8%, wherein LDPE47.4%, EPDM11.4%, mineral filler heavy barium sulfate 38.0%, silane coupling agent 0.80%, lubricant polyethylene wax 0.66%, oxidation inhibitor 0.47%, dilution dispersion agent white oil 0.57%, halogen-absorber Zinic stearas 0.66%.
Accurate weighing LDPE (trade mark 9906 Maoming petrochemical iy produced) 25Kg, EPDM (production of trade mark NDR3430 Beijing brightness in morning great achievement Science and Technology Ltd.) 6Kg, heavy barium sulfate (production of 1250 order Yuncheng Salt Chemistry Bureau, Shanxi Prov.) 20Kg, polyethylene wax (fusing point 100-120 ℃ of Chengdu, Sichuan produces with devote every effort to help agent company limited) 250g, oxidation inhibitor (the big chemical industry company limited in sea, oxidation inhibitor SK-1010 Qingdao produces) 250g, silane coupling agent (the sharp evolution worker in newly developed area, trade mark KH-550 Changzhou limited-liability company produces) 420g, white oil (15
#Silver-colored damp daily use chemicals company limited produced during raised in white oil Zhenjiang) 300g, Zinic stearas (zinc content is not less than 13%, and rich welfare plant produced is celebrated in the Liyang, changzhou) 350g.According to set of dispense than order join SHR-100A type high-speed mixer high speed mix be warming up to 70 ℃ after, through being cooled to normal temperature.To prepare modification function pellet by TE-65 parallel dual-screw extruding pelletization unit extruding pelletization through the material of high-speed mixing then; modification function pellet color even, nothing connect grain, length is not more than 6mm; 100-160 ℃ of double-screw extruding pelletizing machine barrel controlled temperature; wherein the 1st section 100-110 ℃, the 2nd section 100-120 ℃, the 3rd section 120-130 ℃, the 4th section 130-140 ℃, the 5th section 140-150 ℃, the 6th section 150-155 ℃, 160 ℃ of head controlled temperature.Modification function pellet through double-screw extruding pelletizing machine extruding pelletization makes sound-proof damping noise reduction thermoplastic sheets by SYYP2200 sheet material extruding production line again, sheet material extruding production line forcing machine main frame (barrel) controlled temperature: the 1st section 130 ℃, the 2nd section 135 ℃, the 3rd section 140 ℃, the 4th section 150 ℃, the 5th section 140 ℃, the 6th section 155 ℃, the 7th section 160 ℃, the 8th section 160 ℃; 1 section 150 ℃, the 2nd section 150 ℃, the 3rd section 150 ℃, the 4th section 150 ℃, the 5th section 150 ℃ of junction temperature controls; 1 section 170-190 ℃, the 2nd section 170-190 ℃, the 3rd section 170-190 ℃, the 4th section 170-190 ℃, the 5th section 170-190 ℃, the 6th section 170-190 ℃, the 7th section 170-190 ℃, the 8th section 170-190 ℃, the 9th section 170-190 ℃, the 10th section 170-190 ℃, the 11st section 170-190 ℃ of head (die head) temperature control.After testing: the sound-proof damping noise reduction thermoplastic sheets tensile strength that makes is 9.8Mpa, elongation at break 546%, angle tear strength 28.3N/mm, density 1.38g/cm
3, vacuum forming thermoforming performance is good, surface no pit, crack-free, and the advantages of good caking property energy is arranged with polyurethane flexible foam, the open-air down placement of normal temperature did not come off in ten months.
Embodiment 6, the car preparation method of sound-proof damping noise reduction sheet material
Major equipment is identical with embodiment 5.
Modification function granular component proportioning polyvinyl resin 50%, wherein LLDPE16.1%, EVA9.7%, EPDM24.2%, mineral filler 46.8%, wherein activate water-ground limestone 32.3%, heavy barium sulfate 14.5%, silane coupling agent 0.84%, lubricant 0.64%, wherein polyethylene wax 0.24%, stearic acid 0.40%, oxidation inhibitor 0.40%, dilution dispersion agent white oil 0.48%, halogen-absorber calcium stearate 0.73%.
Accurate weighing LLDPE (trade mark 7042 is raised sub-petrochemical iy produced) 10Kg, EPDM (production of trade mark NDR3430 Beijing brightness in morning great achievement Science and Technology Ltd.) 15Kg, EVA (production of trade mark VA800 Hyundai) 6Kg, activation water-ground limestone (production of 1500 order Jiangsu Yixing lime carbonate factory) 20Kg, heavy barium sulfate (production of 1250 order Yuncheng Salt Chemistry Bureau, Shanxi Prov.) 9Kg, polyethylene wax (fusing point 100-120 ℃ of Chengdu, Sichuan produces with devote every effort to help agent company limited) 150g, stearic acid (the abundant star chemical industry in the trade mark 1801 Shanghai company limited is from Malaysian import) 250g, oxidation inhibitor (the big chemical industry company limited in sea, oxidation inhibitor SK-1010 Qingdao produces) 250g, silane coupling agent (the sharp evolution worker in newly developed area, trade mark KH-550 Changzhou limited-liability company produces) 520g, white oil (15
#Silver-colored damp daily use chemicals company limited produced during raised in white oil Zhenjiang) 300g, calcium stearate (calcium contents is not less than 6%, and rich welfare plant produced is celebrated in the Liyang, changzhou) 450g.According to set of dispense than order join SHR-100A type high-speed mixer high speed mix be warming up to 70 ℃ after, through being cooled to normal temperature.To prepare modification function pellet by TE-65 parallel dual-screw extruding pelletization unit extruding pelletization through the material of high-speed mixing then; modification function pellet color even, nothing connect grain, length is not more than 6mm; 100-160 ℃ of double-screw extruding pelletizing machine barrel controlled temperature; wherein the 1st section 100-110 ℃, the 2nd section 100-120 ℃, the 3rd section 120-130 ℃, the 4th section 130-140 ℃, the 5th section 140-150 ℃, the 6th section 150-155 ℃, 160 ℃ of head controlled temperature.Modification function pellet through double-screw extruding pelletizing machine extruding pelletization makes sound-proof damping noise reduction thermoplastic sheets by SYYP2200 sheet material extruding production line again, sheet material extruding production line forcing machine main frame (barrel) controlled temperature: the 1st section 140 ℃, the 2nd section 145 ℃, the 3rd section 150 ℃, the 4th section 160 ℃, the 5th section 150 ℃, the 6th section 165 ℃, the 7th section 170 ℃, the 8th section 170 ℃; 1 section 160 ℃, the 2nd section 160 ℃, the 3rd section 160 ℃, the 4th section 160 ℃, the 5th section 160 ℃ of junction temperature controls; 1 section 170-200 ℃, the 2nd section 170-200 ℃, the 3rd section 170-200 ℃, the 4th section 170-200 ℃, the 5th section 170-200 ℃, the 6th section 170-200 ℃, the 7th section 170-200 ℃, the 8th section 170-200 ℃, the 9th section 170-200 ℃, the 10th section 170-200 ℃, the 11st section 170-200 ℃ of head (die head) temperature control.After testing: the sound-proof damping noise reduction thermoplastic sheets tensile strength that makes is 8.8Mpa, elongation at break 516%, angle tear strength 25.6N/mm, density 1.43g/cm
3, vacuum forming thermoforming performance is good, and with polyurethane flexible foam the advantages of good caking property energy is arranged, and open-air down placement of normal temperature do not come off in 12 months.
Claims (9)
1, a kind of car sound-proof damping noise reduction thermoplastic sheets, it is characterized in that adopting high-speed mixer that modification function pellet starting material are carried out combination treatment, prepare modification function pellet by the double-screw extruding pelletizing unit then, high car of filling sound-proof damping noise reduction thermoplastic sheets during modification function pellet is made by sheet material or sheet material extruding production line again;
(1) modification function pellet starting material high-speed mixing: modification function granular component mass percent proportioning polyvinyl resin 27.6-70.4%, mineral filler 28-68%, coupling agent 0.4-1.5%, lubricant 0.4-0.8%, oxidation inhibitor 0.1-0.7%, dilution dispersion agent 0.3-0.8%, halogen-absorber 0.4-1.0%; Modification function pellet starting material are added after high-speed mixer is warming up to 70 ℃ than order according to set of dispense, through being cooled to normal temperature;
(2) the double-screw extruding pelletizing unit prepares modification function pellet: will prepare modification function pellet by double-screw extruding pelletizing unit extruding pelletization through high-speed mixer blended material, 100-170 ℃ of double-screw extruding pelletizing machine barrel controlled temperature, 140-200 ℃ of head controlled temperature;
(3) the sheet material extruding production line is made sound-proof damping noise reduction thermoplastic sheets: modification function pellet is made sound-proof damping noise reduction thermoplastic sheets by the sheet material extruding production line, 90-170 ℃ of sheet material extruding production line forcing machine host computer control temperature, 120-200 ℃ of head controlled temperature.
2, car according to claim 1 sound-proof damping noise reduction thermoplastic sheets, it is characterized in that polyethylene matrix resin is ethylene-vinyl acetate copolymer (EVA) and linear low density polyethylene (LLDPE), resin softening point is 40-135 ℃, polyethylene matrix resin accounts for 65.3% in modification function granular component mass percent proportioning, wherein EVA31.6%, LLDPE 33.7%.
3, car according to claim 1 sound-proof damping noise reduction thermoplastic sheets, it is characterized in that polyethylene matrix resin is ethylene-vinyl acetate copolymer (EVA) and terpolymer EP rubber (EPDM), resin softening point is 40-135 ℃, polyethylene matrix resin accounts for 65.4% in modification function granular component mass percent proportioning, wherein EVA52.7%, EPDM 12.7%.
4, car according to claim 1 sound-proof damping noise reduction thermoplastic sheets, it is characterized in that polyethylene matrix resin is linear low density polyethylene (LLDPE), ethylene-vinyl acetate copolymer (EVA) and terpolymer EP rubber (EPDM), resin softening point is 40-135 ℃, polyethylene matrix resin accounts for 50% in modification function granular component mass percent proportioning, wherein LLDPE 16.1%, EVA9.7%, EPDM 24.2%.
5, car according to claim 1 sound-proof damping noise reduction thermoplastic sheets, it is characterized in that mineral filler is talcum powder and light calcium carbonate in the modification function granular component, coupling agent is a titanate coupling agent, lubricant is a polyethylene wax, oxidation inhibitor is the single phenolic antioxidant of alkylation, the dilution dispersion agent is a white oil, and halogen-absorber is a Zinic stearas.
6, car according to claim 1 sound-proof damping noise reduction thermoplastic sheets, it is characterized in that mineral filler is water-ground limestone and heavy barium sulfate in the modification function granular component, coupling agent is a silane coupling agent, lubricant is polyethylene wax and stearic acid, oxidation inhibitor is the single phenolic antioxidant of alkylation, the dilution dispersion agent is a white oil, and halogen-absorber is a calcium stearate.
7, car according to claim 1 sound-proof damping noise reduction thermoplastic sheets; it is characterized in that 100-170 ℃ of modification function pellet double-screw extruding pelletizing machine barrel controlled temperature; wherein the 1st section 100-110 ℃, the 2nd section 100-120 ℃, the 3rd section 110-130 ℃, the 4th section 120-150 ℃, the 5th section 120-150 ℃, the 6th section 130-170 ℃, 140-200 ℃ of head controlled temperature.
8, car according to claim 1 sound-proof damping noise reduction thermoplastic sheets, it is characterized in that the sheet material extruding production line adopts Shanghai forcing machine factory to make SJ90 * 30 plastic plates and extrudes unit, 90-170 ℃ of forcing machine host computer control temperature, 120-170 ℃ of head controlled temperature, wherein the main frame temperature control is 1 section 90-100 ℃, the 2nd section 100-110 ℃, the 3rd section 110-120 ℃, the 4th section 120-140 ℃, the 5th section 130-150 ℃, the 6th section 150-170 ℃; The 1st section 140-170 ℃, the 2nd section 130-160 ℃, the 3rd section 130-160 ℃, the 4th section 140-170 ℃, the 5th section 120-150 ℃, the 6th section 120-150 ℃ of head temperature.
9, car according to claim 1 is characterized in that sound-proof damping noise reduction thermoplastic sheets tensile strength 6.5-12Mpa, elongation at break 460-660%, angle tear strength 25-32N/mm, density 1.20-1.65g/cm with sound-proof damping noise reduction thermoplastic sheets
3, do not come off more than six months with the open-air down placement of polyurethane flexible foam bonding normal temperature.
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