Preformed automobile-damping expandable rubber belt with good oil surface construction and preparation method therefor

A technology for automobile shock absorption and preforming, applied in the direction of adhesives, adhesive types, film/sheet adhesives, etc., it can solve the problems of high VOC content and poor environmental performance, so as to improve production efficiency and save energy. , Good effect of low temperature construction

Inactive Publication Date: 2015-11-25
北京龙苑伟业新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the product contains asphalt, engine oil and other components, the VOC content is high, and the environmental protection performance is poor

Method used

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  • Preformed automobile-damping expandable rubber belt with good oil surface construction and preparation method therefor

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0025] The embodiment of the present invention also provides a preparation method of a preformed automobile shock-absorbing expansion tape with good oil surface construction, which is used to produce the expansion tape of the present invention. The raw materials for preparing the expansion tape are obtained according to the formula of the present invention, including the following steps:

[0026] 1) After mixing solid epoxy resin, solid non-polar rubber and liquid rubber evenly, knead in a pressurized kneader for 7 to 11 minutes;

[0027] 2) After mixing the remaining raw materials, gradually add the pressurized kneader, add one-third of the total weight of the mixed raw materials each time, and knead in the pressurized kneader for 5 to 8 minutes; After all the remaining raw materials are added and mixed uniformly, the expansion tape matrix composition is obtained;

[0028] 3) Extrude the expanded tape base composition prepared above through a rubber extruder according to the ...

Embodiment 1

[0033] This embodiment provides a preformed automobile shock-absorbing expansion tape with good oil surface construction. The preparation method of the expansion tape is as follows:

[0034] In parts by weight, add butadiene rubber BR900025 parts by weight, liquid polybutadiene (1,2-LPB) 18 parts by weight, and solid epoxy resin E205 parts by weight into a pressurized kneader, kneading for 10 minutes;

[0035] 16 parts by weight of naphthenic oil, 0.4 parts by weight of dicyandiamide, 0.8 parts by weight of DTDM, 0.8 parts by weight of CZ, 9 parts by weight of foaming agent AC, 6 parts by weight of zinc oxide, 9 parts by weight of spray carbon black and light After preparing 25 parts by weight of calcium carbonate, gradually add to the pressurized kneader, add 1 / 3 of the total weight each time, and knead for 8 minutes after each addition; add all raw materials and mix them evenly to obtain the expansion tape matrix composition Adopt rubber extruder to extrude the expansion tap...

Embodiment 2

[0037] This embodiment provides a preformed automobile shock-absorbing expansion tape with good oil surface construction. The preparation method of the expansion tape is the same as in Example 1, except that the raw materials used are different, as follows:

[0038] SBR150225 parts by weight of styrene-butadiene rubber, 18 parts by weight of liquid polybutadiene (1,2-LPB), 5 parts by weight of solid epoxy resin E205 parts by weight, 16 parts by weight of naphthenic oil, 0.4 parts by weight of dicyandiamide, 0.8 parts by weight of DTDM Part, CZ0.8 weight part, whipping agent AC9 weight part, zinc oxide 6 weight parts, spray carbon black 9 weight parts and light calcium carbonate 25 weight parts, its preparation method is with embodiment 1. Obtain the example 2 sample.

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Abstract

The invention discloses a preformed automobile-damping expandable rubber belt with good oil surface construction and a preparation method therefor. The rubber belt contains the ingredients in percentage by weight: 4 to 6 percent of solid epoxy resin, 20 to 30 percent of solid non-polar rubber, 15 to 20 percent of liquid rubber, 10 to 20 percent of softening agent, 0.3 to 0.6 percent of epoxy resin curing agent, 0.5 to 1 percent of rubber vulcanizing agent, 0.5 to 1 percent of vulcanization accelerator, 5 to 10 percent of foamer, 5 to 7 percent of foaming accelerator, 5 to 10 percent of thixotropic agent and 20 to 30 percent of filler. According to the expandable rubber belt, the epoxy dispersion force is reduced by adopting the non-polar rubber with good oil surface compatibility and the liquid rubber with relatively good low-temperature viscosity, so that when the expandable rubber belt is subjected to construction on oil-surface steel plates at low temperatures, the damping effect is excellent, the expandable rubber belt does not flow and does not pollute electrophoresis bath liquor, the workability of a product is guaranteed, the consumption of a damping material can be effectively lowered, the weight of vehicle bodies is reduced, sources of energy are saved, and the production efficiency is increased.

Description

technical field [0001] The invention relates to the field of shock-absorbing composite materials for inner and outer panels of automobile bodies, in particular to a preformed automobile shock-absorbing expansion tape with good oil surface construction and a preparation method thereof. Background technique [0002] The modern car body is connected with the skeleton members and the outer panel skin to form a beautiful appearance and a high-strength load-bearing structure. During the process of driving and idling, the weak parts such as the outer panel of the vehicle body will vibrate, forming an excitation source, transmitting the vibration to the vehicle body, and propagating in the form of vibration, which will cause vibration of other parts on the vehicle body and reduce the driving force. comfort. In order to prevent the vibration transmission between the outer panel and the rib, shock-absorbing glue, adhesive tape and other polymer materials are used between the outer pa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/00C09J109/00C09J109/06C09J11/08C09J11/06
Inventor 聂志华雷文民张晓光秦成博
Owner 北京龙苑伟业新材料有限公司
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