Reinforcing and anti-aging environment-friendly rubber aging inhibitor and preparation method and application thereof

A rubber anti-aging agent and environment-friendly technology, applied in the field of environmental-friendly rubber anti-aging agent and its preparation, can solve the problems of no essential modification of the surface, no particularly obvious improvement in dispersion, etc., to reduce migration and volatilization, and improve mutual effect, the effect of wide application prospects

Inactive Publication Date: 2017-01-25
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, since the prepared loaded rubber anti-aging agent is formed by direct grafting of fillers and anti-aging agent small molecules, the surface of the filler has not been substantially modified, so the dispersion of the filler in the matrix has not been significantly improved. Therefore, Little effect on the mechanical properties of rubber

Method used

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  • Reinforcing and anti-aging environment-friendly rubber aging inhibitor and preparation method and application thereof
  • Reinforcing and anti-aging environment-friendly rubber aging inhibitor and preparation method and application thereof
  • Reinforcing and anti-aging environment-friendly rubber aging inhibitor and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 15g of silicon dioxide (SiO 2 ) and 1.2g silane coupling agent γ-(2,3-glycidyloxy)propyltrimethoxysilane were reacted in a 500mL three-necked flask for 10 hours at a temperature of 80°C to obtain an intermediate product (m-SiO 2 ), cooled to room temperature. Then add 1.0g 2,2'-methylenebis(4-methyl-6-tert-butylphenol) (antiaging agent 2246), stir and react at 40°C for 4h, and then dry at 70°C to obtain environmental protection Type rubber antioxidant SiO2-s-2246.

[0031] The infrared spectrogram of the above-mentioned environment-friendly rubber antioxidant after solvent extraction is as follows: figure 1 As shown, there are shear vibration absorption peaks of methylene and methyl at 1396cm-1 and 1437cm-1, respectively, and there is a carbon skeleton C=C vibration absorption peak of aromatic ring at 1500cm-1. The synthesized product is the target product, and its thermogravimetric analysis diagram is as follows figure 2 shown.

[0032] Environment-friendly rubbe...

Embodiment 2

[0040] 15g of silicon dioxide (SiO 2 ) and 1.5g silane coupling agent γ-aminopropyltriethoxysilane were reacted in a 500mL three-necked flask for 12 hours at a temperature of 100°C to obtain an intermediate product (m-SiO 2 ), cooled to room temperature. Then add 1.0g 2,2'-methylenebis(4-methyl-6-tert-butylphenol) (antiaging agent 2246), stir and react at 60°C for 4h, and then dry at 70°C to obtain environmental protection Type Rubber Antioxidant SiO 2 -s-2246.

[0041] Environment-friendly Rubber Antioxidant SiO Prepared by Coupling Agent γ-Aminopropyltriethoxysilane 2 - The basic formula of the styrene-butadiene rubber composite prepared by s-2246 is the same as that in Table 1, except that the coupling agent γ-(2,3-glycidoxy)propyltrimethoxysilane is replaced by γ- Aminopropyltriethoxysilane. Table 3 is the initial mechanical properties of styrene-butadiene rubber composites.

[0042] table 3

[0043]

[0044] As can be seen from Table 3, the addition of environment...

Embodiment 3

[0046] 15g of silicon dioxide (SiO 2 ) and 1.3g silane coupling agent bis(γ-triethoxysilylpropyl)tetrasulfide were reacted in a 500mL three-necked flask for 24 hours at a temperature of 120°C to obtain an intermediate product (m-SiO 2 ), cooled to room temperature. Then add 1.0g of 2,2'-methylenebis(4-methyl-6-tert-butylphenol) (antiaging agent 2246), stir and react at 50°C for 6h, and then dry at 70°C to obtain an environmentally friendly Rubber antioxidant SiO 2 -s-2246.

[0047] Environment-friendly Rubber Antioxidant SiO Prepared with Coupling Agent Bis(γ-Triethoxysilylpropyl) Tetrasulfide 2 The basic formula of the styrene-butadiene rubber composite prepared by -s-2246 is the same as that in Table 1, except that the coupling agent γ-aminopropyltriethoxysilane is replaced by bis(γ-triethoxysilyl Propyl) tetrasulfide. Table 4 is the initial mechanical properties of styrene-butadiene rubber composites.

[0048] Table 4

[0049]

[0050] As can be seen from Table 4,...

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PUM

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Abstract

The invention discloses a reinforcing and anti-aging environment-friendly rubber aging inhibitor and a preparation method and application thereof; the method comprises mixing an inorganic support and a silane coupling agent, stirring and reacting at 80-120 DEG C for 10-24 h to obtain an intermediate product; mixing the intermediate product with an aging inhibitor according to a mass ratio of (0.5-2):15, and stirring and reacting at 40-60 DEG C for 4-6 h; drying to obtain the environment-friendly rubber aging inhibitor. The aging inhibitor of the invention can improve dispersion between a rubber base and a filling material, interaction between the rubber and the filling material is improved, and mechanical properties of the base are improved; in addition, the aging inhibitor of the invention is as advantageous as an aging inhibitor prepared by direct solid-phase reaction; the aging inhibitor has the advantages of aging inhibition and reinforcing, the preparation process is simple to perform and energy-efficient and environment-friendly, the aging inhibitor is a true environment-friendly rubber aid having a promising application prospect in rubber industrial production.

Description

technical field [0001] The invention belongs to the field of anti-aging and reinforcement of rubber additives, and in particular relates to an environment-friendly rubber anti-aging agent with both reinforcement and anti-aging and its preparation method and application. Background technique [0002] In the previous research of the applicant, the solid-phase method supported rubber antioxidant has been successfully prepared and applied, and achieved good results. It can not only effectively reduce the volatilization and migration of small molecule anti-aging agents in the rubber matrix, but also effectively avoid the shortcomings caused by the addition of solvents during processing, and has the requirements of environmental protection, energy saving, high efficiency, and low cost. [0003] However, since the prepared loaded rubber anti-aging agent is formed by direct grafting of fillers and anti-aging agent small molecules, the surface of the filler has not been substantially...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K9/12C08K9/06C08K5/13C08K13/06C08K3/36C08K3/22C08K5/09C08K5/47C08K3/06C08L9/06
CPCC08K9/12C08K3/06C08K3/22C08K3/36C08K5/09C08K5/13C08K5/47C08K9/06C08K13/06C08L2201/08C08L9/06
Inventor 贾志欣林静罗启文罗远芳贾德民
Owner SOUTH CHINA UNIV OF TECH
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