Environment-friendly thermoplastic composite damping rubber plate for vehicle and preparation method of environment-friendly thermoplastic composite damping rubber plate

A compound damping and thermoplastic technology, which is applied to vehicle parts, chemical instruments and methods, rubber layered products, etc., can solve the problems of unqualified VOC, short shelf life, and poor environmental protection of composite damping materials, so as to improve the utilization rate of materials, Good thermal stability and good environmental protection

Inactive Publication Date: 2017-11-17
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is easy to cause pollution to the environment and the interior of the car. The VOC of some cross-linking agents and contact agent chemical raw materials in the above patents is not up to standard, which makes the composite damping material poor in environmental protection, and VOC emissions exceed the standard. With the improvement of automobile environmental protection requirements, automobile factories Composite damping materials with unqualified VOC can no longer be used
At the same time, adding cross-linking agent and contact agent to the rubber product has poor stability and short storage period, especially the storage period in summer is only 20 days

Method used

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  • Environment-friendly thermoplastic composite damping rubber plate for vehicle and preparation method of environment-friendly thermoplastic composite damping rubber plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] See 1# in Table 1 for the raw material ratio of the damping laminate, see 1# in Table 2 for the raw material ratio of the bound laminate, and use polybutadiene hot-melt adhesive for the viscoelastic layer.

[0021] First, melt the asphalt at 120-160°C; secondly, add the filler, resin and rubber into the melted asphalt according to the weight ratio and stir evenly; extrude the green block with an extruder; finally, put the green block with a double roller Calender to make sheet

[0022] processing methods:

[0023] 1. Manufacturing process of damping laminates: According to the raw material ratio of 1# in Table 1, heat the asphalt at 160°C to melt, then add filler, resin and rubber to the melted asphalt, extrude and calender to make damping laminates, thickness 2mm.

[0024] 2. The production method of the binding layer:

[0025] Add the 1# raw material in Table 2 into the integrated machine, and adopt the equipment integrating rubber and plastic mixer-hoist-double-co...

Embodiment 2

[0034] The raw material ratio of the damping laminate is shown in Table 1 2#, the thickness is 2.0mm, the raw material ratio of the bonded laminate is shown in Table 2# 2#, the thickness is 3mm, and the viscoelastic layer uses polybutadiene hot melt adhesive with a thickness of 0.7mm. Processing method is with embodiment 1.

[0035] Damping value: 0.06 at 20°C; 0.15 at 40°C; 0.07 at 70°C.

Embodiment 3

[0037] The raw material ratio of the damping laminate is 3# in Table 1, and the thickness is 2mm. The raw material ratio of the restraint laminate is 3# in Table 2, and the thickness of the restraint laminate is 2mm. The viscoelastic layer uses polyurethane hot melt adhesive, and the thickness of the viscoelastic layer is 0.6 mm. Processing method is with embodiment 1

[0038] Damping value: 0.06 at 20°C; 0.08 at 40°C; 0.07 at 70°C.

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Abstract

The invention provides an environment-friendly thermoplastic composite damping rubber plate for a vehicle and a preparation method of the environment-friendly thermoplastic composite damping rubber plate and belongs to the technical field of material preparation. The environment-friendly thermoplastic composite damping rubber plate for the vehicle is formed by a damping layer, a viscoelastic layer and a bound layer by sequential compositing. For the preparation process, a damping layer plate and a bound layer plate are prepared firstly, and then the damping layer plate and the bound layer plate are composited with a hot melt adhesive. The prepared composite damping rubber plate has the advantages of high damping value, good heat stability, good environment friendliness, high material use ratio and the like, and the damping value in the range from subzero 20 DEG C to 50 DEG C can reach 0.06-0.15.

Description

technical field [0001] The invention belongs to the technical field of material preparation, and in particular relates to a composite damping material used for shock and noise reduction of vehicles and a preparation method. Background technique [0002] The medium and low frequency interior noise generated during the operation of the vehicle is mainly transmitted through solid channels, while the high frequency interior noise is mainly transmitted through air. Typical car noise is low frequency noise, so if solid-borne transmissions can be attenuated or eliminated, the interior noise can be greatly reduced. Damping vibration reduction and noise reduction technology is one of the methods to effectively control vibration and noise. It has irreplaceable effects of other vibration reduction technologies in solving the problem of vibration and noise in the car, and has been widely used in automobiles. At present, most of the vehicle damping materials use asphalt damping boards o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L25/06C08L9/06C08L75/04C08L61/06C08L57/02C08L23/06C08L23/22C08L23/12C08L33/04C08L93/04C08L9/00C08L67/00C08K13/04C08K3/34C08K3/26B32B11/02B32B11/04B32B27/30B32B27/32B32B27/36B32B25/14B32B25/18B32B27/40B32B27/18B32B25/02B32B7/12B32B33/00B32B37/12B32B37/10
CPCB32B7/08B32B7/12B32B11/044B32B11/046B32B25/14B32B25/18B32B27/302B32B27/32B32B27/36B32B27/40B32B33/00B32B37/10B32B37/12B32B2262/0246B32B2262/0276B32B2262/06B32B2264/10B32B2264/102B32B2264/104B32B2264/108B32B2307/10B32B2307/56B32B2605/00C08K2003/2206C08K2003/2241C08K2003/265C08K2201/014C08L9/06C08L25/06C08L75/04C08L95/00C08L2201/08C08L2205/02C08L2205/035C08L2205/16C08L57/02C08K13/04C08K3/34C08K3/26C08L61/06C08L23/06C08L23/22C08L9/00C08K3/22C08K3/04C08L23/12C08L33/04C08L67/00C08L93/04
Inventor 李亚鹏王静媛
Owner JILIN UNIV
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