Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparing method for acoustic insulating, damping and noise-decreasing sheets for car

A technology of damping and sheet materials, which is applied in the field of preparation of sound-insulating, damping and noise-reducing sheets for cars, to achieve the effects of widening the spectrum of noise-reducing damping, high material strength, and reduced product costs

Inactive Publication Date: 2005-02-23
HENKEL CORP
View PDF0 Cites 40 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the original defects of the existing domestic vehicle barrier sheet construction methods, and provide a high-speed mixer to mix the modified functional granular raw materials such as polyethylene matrix resin and inorganic fillers. Then, the modified functional pellets are prepared through a twin-screw extrusion granulation unit, and the modified functional pellets are then passed through a sheet or plate extrusion production line to make a sound-insulating, damping, and noise-reducing thermoplastic sheet for medium and high-fill cars.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1, the preparation method of sound insulation damping noise reduction sheet material for car

[0019] The main equipment is SHR-100A high-speed mixer, TE-50 co-rotating twin-screw extrusion granulation unit, and SJ90×30 plastic sheet extrusion unit.

[0020] The proportion of modified functional pellets is 65.3% of polyethylene resin, including 31.6% of EVA, 33.7% of LLDPE, 31.6% of inorganic filler, of which 21.1% of talc powder, 10.5% of light calcium carbonate, titanate coupling agent 0.68%, lubricant polyethylene wax 0.53%, antioxidant 0.42%, diluent dispersant white oil 0.63%, halogen absorbent zinc stearate 0.53%.

[0021] Accurately weigh 15Kg of EVA (produced by brand 18 / 3 Beijing Chemical Plant), 16Kg of LLDPE (produced by Yangzi Petrochemical Co. ) 5Kg, polyethylene wax (melting point 100-120 ℃ produced in Sichuan) 250g, antioxidant (antioxidant SK-1010 produced in Shandong) 200g, titanate coupling agent (brand CT114 produced in Changzhou) 320g, wh...

Embodiment 2

[0022] Embodiment 2, the preparation method of sound insulation damping noise reduction sheet material for car

[0023] Main equipment is identical with embodiment 1.

[0024] The proportion of modified functional pellets is 65.5% polyethylene resin, including 31.7% EVA, 33.8% LLDPE, 31.7% inorganic filler light calcium carbonate, 0.68% titanate coupling agent, and 0.53% lubricant polyethylene wax %, 0.42% antioxidant, 0.63% dilute dispersant white oil, 0.53% halogen absorbent zinc stearate.

[0025] Accurately weigh 15Kg of EVA (brand PE-3019 produced in Brazil), LLDPE (brand 7042 produced by Yangzi Petrochemical) 16Kg, light calcium carbonate (1200 mesh produced by Changzhou calcium carbonate factory) 15Kg, polyethylene wax (melting point 100-120 °C produced in Sichuan) ) 250g, antioxidant (antioxidant SK-1010 produced in Shandong) 200g, titanate coupling agent (brand CT114 produced in Changzhou) 320g, white oil (15 # white oil produced in Zhenjiang) 300g, zinc stearate (z...

Embodiment 3

[0026] Embodiment 3, the preparation method of sound insulation damping noise reduction sheet material for car

[0027] Main equipment is identical with embodiment 1.

[0028] Modified functional granular material distribution ratio polyethylene resin 65.4%, of which EVA 52.7%, EDPM 12.7%, inorganic filler light calcium carbonate 31.6%, titanate coupling agent 0.67%, lubricant polyethylene wax 0.53% , 0.63% antioxidant, 0.63% dilute dispersant white oil, 0.53% halogen absorbent zinc stearate.

[0029] Accurately weigh 25Kg of EVA (brand PE-3019 produced in Brazil), 6Kg of EDPM (brand NDR3430 produced in Beijing), 15Kg of light calcium carbonate (1200 mesh produced by Changzhou Calcium Carbonate Factory), polyethylene wax (melting point 100-120°C produced in Sichuan) 250g, antioxidant (antioxidant SK-1010 Shandong production) 300g, titanate coupling agent (brand CT114 Changzhou production) 320g, white oil (15# white oil Zhenjiang production) 300g, zinc stearate (zinc content ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

This invention offers a kind of car to lower and made an uproar hot a slice of material of plasticity with the sound insulation damping, it adopts the high-speed mixer to mix dealing with to this a grain of material raw materials of sex function, is it build through pairs of spiral shell pole grains of aircrew is it modify a grain of material of function to prepare to push out of, modify function grains of material find through slices of material or panel production line high car that pack is it make an uproar hot a block of material of plasticity to lower with sound insulation damping in making and then. Whether modify function grains of material group one. (quality percentage) 27.6-70.4% of base resin of polyethylene, inorganic packing is 28-68%, unite 0.4-1.5% of pharmaceutical occasionally, lubricant is 0.4-0.8%, resist 0.1-0.7% or oxygen pharmaceutical, dilute 0.3-0.8% of dispersant, halogen absorbent is 0.4-1.0%; It modify function put grains of material the raw materialses into there aren't mixer not high-speed. Cool until normal atmospheric temperature behind deg. C. Pairs of spiral shell pole find granulator material tube control temperature, 100-170deg.C, the aircraft nose controls temperature 140-200deg.C. Panel find finding machine of production line control temperature 90-170deg.C, the aircraft nose controls temperature 120-200deg.C.

Description

technical field [0001] The invention relates to the molding or connection of plastics, in particular to a method of mixing raw materials such as polyethylene matrix resin and inorganic fillers with modified functional pellets by using a high-speed mixer, and then preparing modified functional pellets through a twin-screw extrusion granulation unit. Granules, modified functional granules are then passed through a sheet or plate extrusion production line to produce a medium-high filling car with a sound-insulating, damping and noise-reducing thermoplastic sheet. Background technique [0002] At present, the barrier sheets for domestic vehicles are mainly asphalt barrier sheets. Asphalt barrier sheets are sheets filled with a large amount of inorganic substances with asphalt as a continuous item, and are mostly used for relatively flat floors of trucks or cars. Although the sheet has the characteristics of good barrier properties, due to the low strength...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B29C47/40C08K5/11C08L23/06
Inventor 王东川钱时杰朱华平徐国平
Owner HENKEL CORP