2-mercaptotoluimidazole pre-dispersed masterbatch and preparation method thereof

A technology of mercaptomethylbenzimidazole and pre-dispersed masterbatch particles, which is applied in the field of rubber additives and its preparation, can solve problems such as affecting the dispersibility of rubber products, endangering the health of employees, and inaccurate formula measurement. It is beneficial to the health of workers, shortens the mixing time, and is easy to mix ingredients
CN108976522AInactive Publication Date: 2018-12-11NINGBO ACTMIX POLYMER
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
NINGBO ACTMIX POLYMER
Publication Date
2018-12-11
Estimated Expiration
Not applicable Β· inactive patent
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Abstract

The invention discloses 2-mercaptotoluimidazole pre-dispersed masterbatch and a preparation method thereof. The masterbatch is prepared from the following raw materials in parts by weight: 68 to 72 parts of 2-mercaptotoluimidazole, 9 to 16 parts of a rubber carrier, 1 to 3 parts of zinc stearate, 1 to 2 parts of glyceryl monostearate, 2 to 5 parts of pentaerythritol stearate, and 5 to 12 parts ofindustrial white oil. Rubber is used as the carrier, glyceryl monostearate and zinc stearate are used as dispersing agents, and pentaerythritol stearate and industrial white oil are used as plasticizer, so good dispersibility in the masterbatch is given to MMBI, at the same time, the original activity of the MMBI can be effectively retained, and the problem of dust pollution can be effectively solved; according to the preparation method disclosed by the invention, the dispersity of the raw materials by premixing twice is greatly improved, and uniform composition of the masterbatch obtained bymixing and extrusion is ensured, so that the MMBI is uniformly dispersed in the masterbatch to avoid aggregation or agglomeration.
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Description

technical field

[0001] The invention relates to the technical field of rubber additives and their preparation, in particular to a 2-mercaptomethylbenzimidazole pre-dispersed masterbatch and a preparation method thereof. Background technique

[0002] The molecular formula of 2-mercaptomethylbenzimidazole (ie MMBI) is C 8 h 8 N 2 S, CAS No. 53988-10-6, can be used as anti-aging agent for natural rubber, styrene-butadiene rubber, butadiene rubber, nitrile rubber and latex. MMBI is mainly used as a synergist of other antioxidants, and the combined effect of other antioxidants is usually better than the sum of the effects of other antioxidants used alone. MMBI itself is also a medium-strength non-polluting anti-aging agent, especially suitable for compounds containing ultra-speed accelerators and heat-resistant compounds that do not contain sulfur but contain TMTD. When MMBI is used together with CBS, MBT, thiuram accelerators or dithiocarbamate accelerators, it can act as an...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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