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

A kind of high-strength, low-hardness shock-absorbing glue and preparation method thereof

A shock-absorbing rubber and low-hardness technology, which is applied in the field of automotive shock-absorbing rubber preparation, can solve the problem that the shock-absorbing rubber cannot achieve high shear strength, and achieve the effects of ensuring product elasticity, ensuring shear strength, and reducing hardness

Active Publication Date: 2017-05-31
北京龙苑伟业新材料有限公司
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the common practice of shock-absorbing rubber is to add a foaming agent to make a foam-type expansion-type shock-absorbing rubber to reduce the hardness, but the shock-absorbing rubber of this solution basically cannot achieve high shear strength at low hardness.

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

preparation example Construction

[0025] The embodiment of the present invention also provides a method for preparing a high-strength, low-hardness shock-absorbing glue, which is used to prepare the above-mentioned shock-absorbing glue, including the following steps:

[0026] After mixing the solid non-polar rubber and solid polar rubber according to the dosage ratio of the formula, knead them in a kneader for 5-8 minutes;

[0027] After mixing the remaining raw materials according to the formula ratio, gradually add 1 / 4 of the total weight into the kneader each time, and knead in the kneader for 5 to 8 minutes;

[0028] After all the raw materials are added into the kneader and mixed uniformly, the shock-absorbing rubber matrix composition is obtained.

Embodiment 1

[0031] This embodiment provides a high-strength, low-hardness shock-absorbing glue. The formula (each raw material is by weight) and the preparation method of the shock-absorbing glue are as follows:

[0032] Add BR90007 parts of butadiene rubber and 62507 parts of nitrile rubber into the kneader and knead for 7 minutes; add 40 parts of liquid polybutadiene (1,4-LPB), 5 parts of epoxy resin E20, 0.4 parts of dicyandiamide, 0.8 parts of DTDM, 0.8 parts of DM, 19 parts of nano-calcium carbonate and 20 parts of talcum powder are prepared according to the equipment, and then gradually added to the kneader, adding 1 / 4 of the total amount each time, kneading for 8 minutes after each addition; add all raw materials And after mixing uniformly, a shock-absorbing adhesive composition is obtained.

Embodiment 2

[0034] This embodiment provides a high-strength, low-hardness shock-absorbing glue. The formula (each raw material is by weight) and the preparation method of the shock-absorbing glue are as follows:

[0035] 7 parts of styrene-butadiene rubber SBR1502, 7 parts of nitrile rubber 6250, 40 parts of liquid polybutadiene (1,2-LPB), 5 parts of epoxy resin E20, 0.4 parts of dicyandiamine, 0.8 parts of DTDM, DM0.8 Part, 19 parts of nano-calcium carbonate and 20 parts of talcum powder, its preparation method is with embodiment 1. Obtain the example 2 sample.

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

PropertyMeasurementUnit
epoxy equivalentaaaaaaaaaa
shear strengthaaaaaaaaaa
hardnessaaaaaaaaaa
Login to View More

Abstract

The invention discloses high-strength low-hardness damping rubber and a preparation method thereof. The damping rubber comprises the following components by weight percent: 4 to 6 percent of epoxy resin, 5 to 10 percent of solid non-polarity rubber, 5 to 10 percent of solid polarity rubber, 35 to 50 percent of liquid rubber with a molecular weight of 800 to 3500, 0.3 to 0.6 percent of curing agent, 0.5 to 1 percent of vulcanizing agent, 0.5 to 1 percent of vulcanizing accelerant, 15 to 25 percent of thixotropic agent and 15 to 25 percent of packing. By mixing the non-polarity and polarity rubber and high-molecular-weight liquid rubber, not only can the high ratio of the rubber in the damping rubber be high, but also the shear strength of the damping rubber is guaranteed; by adding the liquid rubber, the hardness of the damping rubber can be reduced, and the product elasticity can be guaranteed.

Description

technical field [0001] The invention relates to the field of preparation of shock-absorbing glue for vehicles, in particular to a high-strength, low-hardness shock-absorbing glue and a preparation method thereof. Background technique [0002] With the improvement of people's living standards, cars have become an indispensable means of transportation for people in daily life, and the comfort of driving and riding in cars has increasingly become the focus of buyers. The vibration and noise of the vehicle body are undoubtedly the main factors affecting the driving and riding comfort of the car. [0003] 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 ...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C08L9/00C08L9/02C08L63/00C08L9/06C08L23/20C08L23/16C08K13/02
Inventor 雷文民马彦飞秦成博黄会强刘福栋
Owner 北京龙苑伟业新材料有限公司