阅读说明：本技术 一种车用环保阻尼片及其制备方法 (Environment-friendly damping fin for vehicle and preparation method thereof ) 是由 刘训海 于 2020-03-28 设计创作，主要内容包括：本发明公开了一种车用环保阻尼片及其制备方法,所述阻尼片包括两层,分别为阻燃层和阻尼层,其中,阻尼层由包含以下重量份的组分制成：天然橡胶20-30份,氯化丁基橡胶120-150份,相容剂2-5份,石墨烯泡沫5-10份,偶联剂1-3份,抗氧剂0.5-1份,阻燃剂3-5份,硫化剂1-3份,采样天然橡胶和氯化丁基橡胶,环保无污染,无刺激性气味,硫化剂含量少,具有良好的硫化粘合性能,耐热性阻燃性好；添加的阻燃剂再配合阻燃金属,使得阻尼片具有很好的阻燃效果；通过设置的石墨烯泡沫,使得阻尼片具有极佳的吸声消音功能,功能强大,制备简单,值得推广。(The invention discloses an environment-friendly damping fin for a vehicle and a preparation method thereof, wherein the damping fin comprises two layers, namely a flame-retardant layer and a damping layer, wherein the damping layer is prepared from the following components in parts by weight: 20-30 parts of natural rubber, 150 parts of chlorinated butyl rubber, 2-5 parts of compatilizer, 5-10 parts of graphene foam, 1-3 parts of coupling agent, 0.5-1 part of antioxidant, 3-5 parts of flame retardant and 1-3 parts of vulcanizing agent, and the natural rubber and the chlorinated butyl rubber are sampled, so that the environment-friendly flame-retardant adhesive is environment-friendly and pollution-free, has no pungent smell, contains less vulcanizing agent, has good vulcanization adhesion performance and good heat resistance and flame retardance; the added flame retardant is matched with flame-retardant metal, so that the damping fin has a good flame-retardant effect; through the graphite alkene foam that sets up for the damping fin has splendid sound absorption amortization function, powerful, and preparation is simple, is worth promoting.)

1. The environment-friendly damping fin for the vehicle is characterized by comprising two layers, namely a flame-retardant layer and a damping layer, wherein the damping layer is prepared from the following components in parts by weight: 20-30 parts of natural rubber, 150 parts of chlorinated butyl rubber, 2-5 parts of compatilizer, 5-10 parts of graphene foam, 1-3 parts of coupling agent, 0.5-1 part of antioxidant, 3-5 parts of flame retardant and 1-3 parts of vulcanizing agent.

2. The vehicular environment-friendly damping fin according to claim 1, characterized in that the flame retardant layer is made of a metal material, the thickness of the flame retardant layer is 0.3-0.5mm, and the thickness of the damping layer is 1-2 mm.

3. The vehicular environment-friendly damping fin according to claim 2, characterized in that the compatilizer is an isobutylene-isoprene copolymer, wherein the content of isoprene is 50-80%.

4. The vehicular environment-friendly damping fin according to claim 3, wherein the coupling agent is one or a mixture of titanate coupling agent, silane coupling agent and aluminate coupling agent.

5. The environment-friendly damping fin for the vehicle as recited in claim 4, wherein the antioxidant is one or a mixture of alkylated monophenol antioxidant and thiobisphenol antioxidant.

6. The vehicular environment-friendly damping sheet according to claim 5, wherein the vulcanizing agent is one of zinc oxide, dithiocarbamates, NA-22, thiourea, alkyl phenol-formaldehyde resin and sulfur.

7. The environmentally friendly damping patch as claimed in claim 6, wherein the flame retardant is one of aryl monophosphate, triphenyl phosphate, resorcinol bis (diphenyl phosphate), bisphenol A-bis (diphenyl phosphate), tris (2-chloroethyl) phosphate (TCEP), tetrakis (2-chloroethyl) -2, 2-bis (chloromethyl) -1, 3-propylene diphosphate, 1, 2-ethylene-tetrakis (2-chloroethyl) diphosphate, dimethyl methyl phosphate and diethyl ethyl phosphate.

8. The preparation method of the vehicular environment-friendly damping fin as claimed in any one of claims 1 to 7, characterized by comprising the following steps:

s1: firstly, highly mixing various raw materials prepared according to a proportion, heating to 50-80 ℃, and then cooling to normal temperature;

s2: the mixture in the step S1 enters a double-step type, namely a double single-screw sheet extruder set production line for extrusion;

s3: after the extrusion in the step S2, preparing a damping layer in the damping sheet through a T-shaped die head, three-roller calendering, guide roller cooling, trimming, traction and shearing;

s4: and (4) bonding the damping layer prepared in the step S3 with the flame-retardant metal through an adhesive to obtain the damping sheet.

Technical Field

The invention relates to the technical field of production of damping fins for vehicles, in particular to an environment-friendly damping fin for vehicles and a preparation method thereof.

Background

With the continuous improvement of environmental awareness and the successive emergence of environmental regulations of various countries, green automobiles have become a necessary trend for the development of automobiles in the future, so that how to make automobiles meet the requirement of environmental protection is a way to mention the agenda of automobile manufacturers. The new environment-friendly damping material is taken as the mainstream of the development of the future automobile damping material, and must play a very important role therein, so that the composite material with higher performance can be expected to be applied to the fields of automobiles and railway locomotives in a wider range in the near future. In recent years, with the pace of development of the traffic field, the increase of the number of cars, high-speed rails and subways drives the rapid development of new material industries, the market of environment-friendly damping new materials is steadily rising, and in addition, the gradual resurgence of global economy, the application of damping composite materials in cars and railway locomotives is accelerated, and the demand of damping materials is steadily and continuously rising, so that an environment-friendly damping fin for vehicles and a preparation method thereof are needed.

Disclosure of Invention

The invention aims to provide an environment-friendly damping fin for a vehicle and a preparation method thereof, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the environment-friendly damping fin for the vehicle comprises two layers, namely a flame-retardant layer and a damping layer, wherein the damping layer is prepared from the following components in parts by weight: 20-30 parts of natural rubber, 150 parts of chlorinated butyl rubber, 2-5 parts of compatilizer, 5-10 parts of graphene foam, 1-3 parts of coupling agent, 0.5-1 part of antioxidant, 3-5 parts of flame retardant and 1-3 parts of vulcanizing agent.

As a further scheme of the invention: the flame-retardant layer is made of a metal material, the thickness of the flame-retardant layer is 0.3-0.5mm, and the thickness of the damping layer is 1-2 mm.

As a further scheme of the invention: the compatilizer is an isobutylene-isoprene copolymer, wherein the content of isoprene is 50-80%.

As a further scheme of the invention: the coupling agent is one or a mixture of more of titanate coupling agent, silane coupling agent and aluminate coupling agent.

As a further scheme of the invention: the antioxidant is one or a mixture of several of alkylated monophenol antioxidant and thiobisphenol antioxidant.

As a further scheme of the invention: the vulcanizing agent is one of zinc oxide, dithio-carbamate, NA-22, thiourea, alkyl phenolic resin and sulfur.

As a further scheme of the invention: the flame retardant is one of aryl monophosphate, tert-butyl triphenyl phosphate, resorcinol bis (diphenyl phosphate), bisphenol A-bis (diphenyl phosphate), tris (2-chloroethyl) phosphate (TCEP), tetrakis (2-chloroethyl) -2, 2-bis (chloromethyl) -1, 3-propylene diphosphate, 1, 2-ethylene-tetrakis (2-chloroethyl) diphosphate, dimethyl methyl phosphate and diethyl ethyl phosphate.

A preparation method of an environment-friendly damping fin for a vehicle comprises the following steps:

s1: firstly, highly mixing various raw materials prepared according to a proportion, heating to 50-80 ℃, and then cooling to normal temperature;

s2: the mixture in the step S1 enters a double-step type, namely a double single-screw sheet extruder set production line for extrusion;

s3: after the extrusion in the step S2, preparing a damping layer in the damping sheet through a T-shaped die head, three-roller calendering, guide roller cooling, trimming, traction and shearing;

s4: and (4) bonding the damping layer prepared in the step S3 with the flame-retardant metal through an adhesive to obtain the damping sheet.

Compared with the prior art, the invention has the beneficial effects that: the invention samples natural rubber and chlorinated butyl rubber, is environment-friendly and pollution-free, has no pungent smell, contains less vulcanizing agent, has good vulcanization adhesion performance and good heat resistance and flame retardance; the added flame retardant is matched with flame-retardant metal, so that the damping fin has a good flame-retardant effect; through the graphite alkene foam that sets up for the damping fin has splendid sound absorption amortization function, powerful, and preparation is simple, is worth promoting.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.