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Nylon material for noise reduction pad of automobile and preparation method of nylon material

A technology for noise reduction sheets and automobiles, which is applied in the field of auto parts and can solve problems such as poor aging resistance, difficult molding process, and low tensile strength

Inactive Publication Date: 2017-11-28
徐州腾飞工程塑料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the sheet has the characteristics of good barrier properties, its tensile strength is low, the forming process is difficult, and its aging resistance is poor; at the same time, due to its complicated preparation process, the production efficiency is low

Method used

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  • Nylon material for noise reduction pad of automobile and preparation method of nylon material
  • Nylon material for noise reduction pad of automobile and preparation method of nylon material
  • Nylon material for noise reduction pad of automobile and preparation method of nylon material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Step 1: Measure 60g of PA6, 24g of toughening agent, 12g of PTEE, 1g of molybdenum disulfide, 0.5g of anti-floating fiber lubricant, 1g of silicone powder and 1.5g of black masterbatch, add high-speed mixing Mix in the middle for 8-10 minutes, and control the temperature to gradually increase to 70°C during this process, and cool to room temperature after shutting down;

[0023] Step 2: Extrude and granulate the mixture obtained in step 1 through a twin-screw extrusion granulator to prepare modified functional pellets. The temperature of the extruder host is controlled at 110-190°C, and the temperature from the feeding port to the first zone of the die is 110-120℃, the temperature in the second zone is 110-130℃, the temperature in the third zone is 115-140℃, the temperature in the fourth zone is 130-150℃, the temperature in the fifth zone is 150-185℃, the temperature in the sixth zone is 160-180℃, the temperature in the seventh zone is 170- 190°C, die head temperature 1...

Embodiment 2 3

[0025] Embodiment two and three: according to the flow process of embodiment one, change the weight ratio of each component of nylon resin, toughening agent, PTEE, molybdenum disulfide, anti-floating fiber lubricant, silicone powder and black masterbatch respectively, as Shown in table 1: table 1: the weight percent of each component of embodiment two and three

[0026]

[0027] In the above embodiments 1 to 3, the nylon resin is PA6, and the anti-floating fiber lubricant is TAF. The toughening agent in embodiment one is maleic anhydride grafted POE, the toughening agent in embodiment two is maleic anhydride grafted EPDM, the toughening agent in embodiment three is maleic anhydride grafted EPDM and maleic anhydride grafted A mixture of acid anhydride grafted POE with a ratio of 1:1.

[0028] The noise reduction sheets obtained in the above-mentioned Examples 1 to 3 and the existing noise reduction sheets on the market were respectively made into international tensile splin...

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Abstract

The invention provides a nylon material for a noise reduction pad of an automobile and a preparation method of the nylon material. The nylon material is prepared from components in percentage by weight as follows: 60%-70% of nylon resin, 15%-25% of a toughening agent, 10%-15% of PTEE (polytetrafluoroethylene), 1%-2% of molybdenum disulfide, 0.5%-1% of a fiberglass-exposure-resistant lubricant and 1%-2% of silicone powder. The preparation method comprises steps as follows: the raw materials are mixed in percentage by weight and put into a high-speed mixer to be mixed for 8-10 min, the temperature is controlled to gradually rise to 70 DEG C in the process, and then the raw materials are cooled to the room temperature after machine halt; the mixture obtained in the last step is extruded and pelletized by a double-screw extruder pelletizer for preparation of modified functional granules; the modified functional granules in the step 2 are used for manufacturing the noise reduction pad of the automobile on a plate extrusion production line. On one hand, the nylon material has a remarkable sound insulation effect, high tensile strength and good anti-aging performance and facilitates improvement of production efficiency; on the other hand, the production process is simple and easy to operate, and improvement of the production efficiency is facilitated.

Description

technical field [0001] The invention relates to the technical field of auto parts, in particular to a nylon material for an auto noise reduction sheet and a preparation method thereof. Background technique [0002] The noise generated by vibration is an important factor affecting the comfort of a car. How to reduce the noise inside the car is an important problem to improve the comfort of the whole car. 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, its tensile strength is low, the forming process is difficult, and its aging resistance is poor; at the same time, its production efficiency is low due to its complicated preparation process. Contents of the invention [0003] Aiming ...

Claims

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Application Information

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IPC IPC(8): C08L77/02C08L27/18C08L83/04C08L51/06C08L51/04C08K3/30
CPCC08L77/02C08K2003/3009C08L2201/02C08L2201/08C08L2205/035C08L27/18C08L83/04C08L51/06C08L51/04C08L51/003C08K3/30
Inventor 高腾杨席兵杨其秀
Owner 徐州腾飞工程塑料有限公司
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