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Nano TiO2 modified EPDM (ethylene propylene diene monomer) and preparation method thereof

A nano-modified technology, which is applied in the field of nano-TiO2 modified EPDM and its preparation, can solve the problems of insufficient application and less research, and achieve the effect of improving tear strength and toughness and reducing production costs

Inactive Publication Date: 2019-07-26
XUZHOU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, the existing studies on the modification of EPDM by nano-titanium dioxide mainly have the following deficiencies: first, TiO 2 It is an emerging modified material in recent years, especially when its dosage is within a certain range, it can not only improve the tear strength and toughness of EPDM, reduce the production cost of rubber products, but also improve the mechanical properties and thermal stability of EPDM It also endows it with anti-ultraviolet and anti-aging properties, but there are few studies on it and insufficient applications; in addition, in order to comprehensively utilize titanium resources and develop new ways of application, it greatly reduces the impact of red mud discharged from titanium processing in aluminum factories. The pollution brought by the environment fundamentally eliminates the long-standing sharp conflict between the environment and development

Method used

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  • Nano TiO2 modified EPDM (ethylene propylene diene monomer) and preparation method thereof
  • Nano TiO2 modified EPDM (ethylene propylene diene monomer) and preparation method thereof
  • Nano TiO2 modified EPDM (ethylene propylene diene monomer) and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0036] Nano-TiO 2 The modified EPDM includes the following components in parts by mass: 400 parts of EPDM, 9 parts of zinc oxide, 4 parts of stearic acid, 6 parts of sulfur, and 6 parts of accelerator.

[0037] The nano-TiO 2 The preparation method of modified EPDM is as follows:

[0038] Step 1: Weigh 400 parts of EPDM, 9 parts of zinc oxide, 4 parts of stearic acid, 6 parts of sulfur, and 6 parts of accelerator (weighed according to the mixture of TMTD and M with a mass ratio of 2:1), and set aside.

[0039] Step 2: Roll the weighed EPDM 3~4 times (roll distance 0.5~1.0mm), and turn over (using the method of triangular wrapping and rolling), until a smooth and non-porous roll-wrapped rubber layer is formed. Start refining, add zinc oxide, stearic acid, accelerator and sulfur in sequence, adjust the roller distance, and continue refining until the components are mixed until the color is uniform and the surface is smooth;

[0040] Step 3: Adjust the roller distance, make a ...

Embodiment 2

[0044] Nano-TiO 2 Modified EPDM, including the following components in parts by mass: nano TiO 2 1.25 parts, EPDM 400 parts, zinc oxide 9 parts, stearic acid 4 parts, sulfur 6 parts, accelerator 6 parts.

[0045] The nano-TiO 2 The preparation method of modified EPDM is as follows:

[0046] Step 1: Weigh nano TiO by mass 2 1.25 parts (particle size is 20nm), 400 parts of EPDM, 9 parts of zinc oxide, 4 parts of stearic acid, 6 parts of sulfur, 6 parts of accelerator (weighed according to the mixture of TMTD and M with a mass ratio of 2:1), set aside.

[0047] Step 2: Roll the weighed EPDM 3~4 times (roll distance 0.5~1.0mm), and turn over (using the method of triangular wrapping and rolling), until a smooth and non-porous roll-wrapped rubber layer is formed. Start refining, add zinc oxide, stearic acid, accelerator, nano-TiO in sequence 2 and sulfur, adjust the roller distance, and continue to smelt until the components are mixed until the color is uniform and the surface is...

Embodiment 3

[0052] Nano-TiO 2 Modified EPDM, including the following components in parts by mass: nano TiO 2 0~20 parts, EPDM 350~450 parts, zinc oxide 5~25 parts, stearic acid 1-7 parts, sulfur 2-10 parts, accelerator 2-10 parts.

[0053] The nano-TiO 2 The preparation method of modified EPDM is as follows:

[0054] Step 1: Weigh nano TiO by mass 2 2.5 parts (particle size is 20nm), 400 parts of EPDM, 9 parts of zinc oxide, 4 parts of stearic acid, 6 parts of sulfur, 6 parts of accelerator (weighed according to the mixture of TMTD and M with a mass ratio of 2:1), set aside.

[0055] Step 2: Roll the weighed EPDM 3~4 times (roll distance 0.5~1.0mm), and turn over (using the method of triangular wrapping and rolling), until a smooth and non-porous roll-wrapped rubber layer is formed. Start refining, add zinc oxide, stearic acid, accelerator, nano-TiO in sequence 2 and sulfur, adjust the roller distance, and continue to smelt until the color of each component is mixed and the surface i...

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Abstract

The invention belongs to the technical field of nano titanium dioxide modified rubber and relates to nano TiO2 modified EPDM (ethylene propylene diene monomer) and a preparation method thereof. The nano titanium dioxide modified rubber material is prepared from, by mass, 0-20 parts of nano TiO2, 350-450 parts of EPDM rubber, 5-25 parts of zinc oxide, 1-7 parts of stearic acid, 2-10 parts of sulfurand 2-10 parts of an accelerant. By improvement of a production process, tear strength and tenacity of EPDM are improved, production cost of rubber products is reduced, mechanical properties of EPDMare improved, defects that non-conjugated diene copolymer monomers are only capable of providing few double-bond crosslinking and less in vulcanized rubber crosslinking and fail to form three-dimensional network structures and vulcanized products are poor in comprehensive performance are improved, and extensive approaches are provided for application development of a nano TiO2 / EPDM composite material.

Description

technical field [0001] The invention belongs to nano TiO 2 Modified rubber technical field, particularly a kind of nano TiO 2 Modified EPDM and its preparation method. Background technique [0002] With the continuous development of society and the continuous progress of science and technology, all walks of life have begun to develop steadily. In the chemical industry, rubber products have been favored by many researchers due to their better heat resistance and wear resistance and other more excellent properties after vulcanization, which makes the rubber industry gradually developed and tends to mature. . Nowadays, rubber has been widely used in people's life, and has gradually become an indispensable part of people's life, ranging from daily necessities, food packaging and office supplies, to vehicles, medical equipment, electrical machinery, construction industry and so on. In many fields such as military defense, there is a place for rubber. Therefore, the rubber in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08K13/02C08K3/22C08K5/09C08K3/06
CPCC08K3/06C08K3/22C08K5/09C08K13/02C08K2003/2241C08K2003/2296C08K2201/011C08L23/16
Inventor 王晓辉陈艳蔡可迎董黎明宫贵贞周俊
Owner XUZHOU UNIV OF TECH
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