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Hybrid filler load type anti-aging agent, and preparation method and application thereof

A supported and antioxidant technology, applied in the field of hybrid filler supported antioxidants and their preparation, can solve the problems of easy migration and migration of ammonia antioxidants, and achieve the effects of excellent solvent resistance, not easy to migrate, and good anti-aging effect.

Active Publication Date: 2017-09-22
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiencies of the prior art, the present invention uses a silane coupling agent to modify the hybrid filler first, and then reacts the intermediate product with RT to prepare a loaded anti-aging agent, which solves the problem that the ammonia-based anti-aging agent is easy to migrate out. Shortcomings

Method used

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  • Hybrid filler load type anti-aging agent, and preparation method and application thereof
  • Hybrid filler load type anti-aging agent, and preparation method and application thereof
  • Hybrid filler load type anti-aging agent, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 10g HNTs-g-SiO 2 (HS) and 0.8g silane coupling agent γ-(2,3-glycidoxy)propyltrimethoxysilane were added to a 500mL three-necked flask, reacted at 70°C for 10 hours, cooled to room temperature, and The intermediate product (m-HS) was obtained after drying under low temperature. Then add 0.5g RT (N-phenyl-p-phenylenediamine), react at 50°C for 8h, and then dry at 60°C to obtain a loaded antioxidant, marked as HS-s-RT.

[0036] The infrared spectrum of the loaded anti-aging agent prepared in this embodiment after ethanol extraction is as follows: figure 2 As shown in curve b, at 2946cm -1 and 2875cm -1 is the stretching vibration absorption peak of methylene, and at 1521cm -1 There is a carbon skeleton C=C bending vibration absorption peak of the aromatic ring. The thermogravimetric analysis diagram of the synthetic product of this embodiment is as follows image 3 shown. Combining the infrared spectrum and thermogravimetric analysis, it can be seen that RT has bee...

Embodiment 2

[0038] 10g HNTs-g-SiO 2 (HS) and 1g of silane coupling agent γ-(2,3-glycidoxy)propyltrimethoxysilane were added to a 500mL three-neck flask, reacted at 80°C for 12 hours, cooled to room temperature, and dried at 70°C Then the intermediate product (m-HS) is obtained. Add 1g of RT (N-phenyl-p-phenylenediamine) to react at 60°C for 12h, and dry at 50°C to obtain a loaded antioxidant, marked as HS-s-RT.

[0039] Table 1 shows the basic formula for preparing styrene-butadiene rubber composites using γ-(2,3-glycidoxy)propyltrimethoxysilane as a loaded antioxidant HS-s-RT. The specific process of the preparation of styrene-butadiene rubber composite materials: according to the order of adding rubber (SBR), activator (ZnO+St), filler, accelerator, anti-aging agent and sulfur, they are mixed uniformly on a double-roller mill, and then mixed at 160 °C vulcanization to obtain styrene-butadiene rubber composites.

[0040] Table 1

[0041]

[0042] Units in Table 1 are parts by mass...

Embodiment 3

[0046] 10g HNTs-g-SiO 2 (HS) and 0.9g silane coupling agent γ-(2,3-glycidoxy)propyltrimethoxysilane were added to a 500mL three-necked flask, reacted at 90°C for 24 hours, cooled to room temperature, and The intermediate product (m-HS) was obtained after drying under low temperature. Then add 2g of RT (N-phenyl-p-phenylenediamine) and react at 70°C for 10h, then dry at 70°C to obtain a loaded antioxidant, marked as HS-s-RT.

[0047] Table 2

[0048]

[0049] According to the formula in Table 2, after adding the prepared anti-aging agent to styrene-butadiene rubber, the oxidation induction period was measured. Compared with SBR / m-HS / 4010NA, the oxidation induction period of SBR / HS-s-RT composite material was from 109.45min increased to 122.73min, and the aging resistance of the styrene-butadiene rubber composite was significantly improved.

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Abstract

The invention discloses a hybrid filler load type anti-aging agent, and a preparation method and application thereof. The method comprises the following steps that (1) hybrid fillers and a silane coupling agent are mixed; stirring reaction is performed for 10 to 24h at 70 to 90 DEG C; after drying, an intermediate product is obtained; (2) the intermediate product in the step (1) and N-phenyl p-phenylenediamine (RT) are mixed; stirring reaction is performed for 8 to 12h at 50 to 70 DEG C; after drying, the hybrid filler load type anti-aging agent is obtained. The hybrid filler load type anti-aging agent can obviously reduce the volatile migration phenomenon of micromolecule anti-aging agents in a rubber base body, has a better anti-aging effect than that of an ordinary ammonia anti-aging agent 4010NA, and has wide application prospects in the field of rubber.

Description

technical field [0001] The invention belongs to the field of rubber anti-aging agents and their applications, and in particular relates to a hybrid filler-loaded anti-aging agent and its preparation method and application. Background technique [0002] The development of rubber composite materials is closely related to the wide application of inorganic fillers and rubber additives. Nano-hybrid filler is a new type of nano-filler that combines two or more inorganic nanoparticles through hydrogen bonds, electrostatic adsorption, chemical bonds, etc. Compared with ordinary single fillers, hybrid fillers have a unique morphology and structure, which usually have a more significant synergistic effect on polymer composites. In the previous research of the applicant, a layer of nano-silica particles was formed in situ on the surface of halloysite by sol-gel method, and a new type of hybrid filler was obtained. Compared with halloysite nanotubes, the specific surface area of ​​thi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K9/04C08K9/06C08K7/26C08K5/18C08L9/06
CPCC08K5/18C08K7/26C08K9/04C08K9/06C08L2201/08C08L9/06
Inventor 贾志欣林静胡德超钟邦超罗远芳贾德民
Owner SOUTH CHINA UNIV OF TECH
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