Vulcanization-promoted comprehensive protective material and preparation method thereof

A protective material and vulcanization-promoting technology, applied in the field of vulcanization-promoted comprehensive protective materials for rubber and their preparation, can solve the problems of lack of dynamic protective effect, influence on protective effect, insufficient dynamic performance, etc., and achieve excellent comprehensive protective effect and excellent resistance to Thermal oxidative aging, improve the effect of metal poisoning

Active Publication Date: 2020-06-19
常州市五洲化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Trimers and tetramers have large molecular weights, are not easy to migrate, and have excellent thermo-oxidative aging resistance under static conditions, but insufficient dynamic properties; dimers have good thermo-oxidative aging properties under both dynamic and static conditions, but due to Small molecular weight, with certain mobility
However, because of its small molecular weight, it is easy to migrate and precipitate especially in high-temperature rubber products such as tires, which not only affects the long-term protection effect, but also makes the product turn red and affects the appearance.
[0005] The static anti-ozone aging effect of rubber antioxidant 4030 [N-N'-bis(1,4-dimethylpentyl)-p-phenylenediamine] is the most excellent among the p-phenylenediamine antioxidants, but the dynamic protection little effect

Method used

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  • Vulcanization-promoted comprehensive protective material and preparation method thereof
  • Vulcanization-promoted comprehensive protective material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A vulcanization-promoting comprehensive protective material of the present invention comprises the following components: anti-aging agent RD, anti-aging agent 4020, anti-aging agent 4030 and zinc terephthalate.

[0023] The method for preparing the vulcanization-accelerated comprehensive protective material comprises the following steps:

[0024] (1) Add antiaging agent RD, antiaging agent 4020 and antiaging agent 4030 into acetone in proportion, stir until dissolved, and then add emulsifier to obtain emulsion system A;

[0025] (2) Disperse zinc terephthalate in acetone and add emulsifier to obtain emulsion system B;

[0026] (3) Fully mix system A of step (1) and system B of step (2) in a homogenizer, then recover acetone through distillation, and transfer the remaining substances to the storage tank under heat preservation, and reduce to a suitable After reaching a certain temperature, it is granulated by a steel belt cooling granulator to obtain the final granular ...

Embodiment 2

[0031] The difference between embodiment 2 and embodiment 1 is:

[0032] Further, the ratio of the antiaging agent RD, antiaging agent 4020, antiaging agent 4030 and zinc terephthalate is (by weight), 30:25:25:20.

[0033] Further, the emulsifier is selected from OP-10.

[0034] Further, the particle size D of zinc terephthalate 97 1.5 microns, BET specific surface area is 100m 2 / g.

Embodiment 4

[0036] The difference between embodiment 4 and embodiment 1 is:

[0037] Further, the ratio of the antiaging agent RD, antiaging agent 4020, antiaging agent 4030 and zinc terephthalate is (by weight), 28:23:23:26.

[0038] Further, the emulsifier is selected from a mixture of sodium palmitate and OP-20.

[0039] Further, the particle size D of zinc terephthalate 97 0.8 micron, BET specific surface area is 150m 2 / g.

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Abstract

The invention discloses a vulcanization-promoted comprehensive protective material and a preparation method thereof. The protective material is composed of an anti-aging agent RD, an anti-aging agent4020, an anti-aging agent 4030 and zinc terephthalate according to a weight part ratio of (25-30):(20-25):(20-25):(20-35). The preparation method of the protective material comprises the following steps: (1) adding an anti-aging agent RD, an anti-aging agent 4020, an anti-aging agent 4030 and an emulsifier into acetone, and stirring to obtain an emulsion system A; (2) dispersing zinc terephthalateand an emulsifier into acetone to obtain an emulsion system B; and (3) mixing the system A and the system B in a homogenizer, distilling to recover acetone, cooling the remaining substances, and granulating to obtain the target product. The protective material disclosed by the invention has excellent protective effects of thermal oxidation resistance, ozone resistance in dynamic and static states, metal toxicity resistance and the like, and can promote rubber vulcanization process.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a vulcanization-accelerating comprehensive protective material for rubber and a preparation method thereof. Background technique [0002] During the processing, storage and use of rubber and its products, aging symptoms such as cracking, stickiness, hardening, softening, pulverization, discoloration, and mildew will appear due to the combined effects of internal and external factors, and finally lose their use value. Rubber anti-aging agent is a product that can prevent or delay rubber aging. Different anti-aging materials have different protection points, and engineers generally use them together according to the characteristics of each material to achieve the best effect. [0003] Rubber anti-aging agent RD[2,2,4-trimethyl-1,2-dihydroquinoline polymer (C12H15N)n, n=2~4] is the most widely used quinoline anti-aging agent. Oxygen aging has a good protective effect, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K5/3437C08K5/18C08K5/098C08L7/00C08K13/02C08K3/22C08K3/06C08K3/04
CPCC08K5/098C08K5/18C08K5/3437C08K2003/2296C08L7/00C08L2201/08C08L91/06C08K13/02C08K3/22C08K3/06C08K3/04
Inventor 唐英俊张莉娜张小丽陆唯一方韬方春平
Owner 常州市五洲化工有限公司
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