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Pre-dispersing masterbatch particle of liquid rubber chemicals and preparation method thereof

A technology for pre-dispersing masterbatches and liquid rubber, which is applied in the preparation of said pre-dispersing masterbatches and the field of pre-dispersing masterbatches for liquid vulcanization aids, and can solve the problems of slow mixing and slow dispersion

Active Publication Date: 2013-01-30
LIANYUNGANG LIANLIAN CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The inventor has gone through a lot of experiments and unexpectedly found that by specially mixing liquid rubber additives, especially vulcanization additives, it is possible to overcome the slow dispersion and the slow dispersion caused by the polarity difference of the liquid additives in the rubber mixing process. The disadvantage of slow mixing, but a pre-dispersed masterbatch of liquid additives is provided

Method used

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  • Pre-dispersing masterbatch particle of liquid rubber chemicals and preparation method thereof
  • Pre-dispersing masterbatch particle of liquid rubber chemicals and preparation method thereof
  • Pre-dispersing masterbatch particle of liquid rubber chemicals and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] Weigh 300g of superfine white carbon black, test its maximum particle size to be 26μm, put it into a 2L glass container, turn it on and stir, add 710g of cross-linking agent triallyl cyanurate (TAC) dropwise evenly, and the dropwise addition is completed Stir for another 2 hours until the mixture is completely uniform, and take out about 1000g of white powder for later use;

[0072] Add 120g of EPDM rubber, 6.2g of EVA resin (VA content 30%), 4.3g of stearic acid, 20g of saturated fatty acid zinc, and 21g of alkane oil into a 3.5L internal mixer, and mix for 3 minutes at 40-60°C. Rotate at a speed of 60r / min to obtain a pre-dispersed masterbatch; add 1000g of white carbon black mixing aid, 214g of talc powder, 6g of saturated fatty acid zinc, and 29g of alkane oil into the internal mixer three times, and continue mixing with the pre-dispersed masterbatch at 60°C For 3 minutes, take out and thinly pass 6 times on a small open mill to remove the slices;

[0073] Put the ...

Embodiment 2

[0075] Put 20Kg of superfine white carbon black powder (the maximum particle size is 30μm) into a 100L Chinese-style reactor, turn on the stirring, and spray 35Kg of cross-linking agent triallyl isocyanurate (TAIC) evenly, spray After pouring, stir for another 2 hours until the mixture is completely uniform, and then take out the white powder for later use;

[0076] Divide 3000g of EPDM rubber and 2000g of EPDM rubber, 260g of EVA resin (VA content 26%), 260g of stearic acid, 850g of dioctyl phthalate, and 850g of alkane oil into two equal mixing times. Add a 3.5L internal mixer, mix for 4 minutes at 60°C, and rotate at a speed of 65r / min, pass the masterbatch obtained by two times of mixing on the open mixer evenly and thinly pass it 10 times, and take it down for later use; mix 50Kg of white carbon black with TAIC additives , 1500g of talc powder, 500g of dioctyl phthalate, and 1000g of alkane oil were added to the 75L internal mixer in three times, and a total of 7.2Kg of t...

Embodiment 3

[0079] Put 300Kg of tetrabutylthiuram disulfide (TBTD) into the high-level spray tank, add 160Kg of superfine white carbon black powder into a 1000L reactor, turn on the stirring paddles in both positive and negative directions, and spray TBTD into the reactor with white Mix the carbon black, and then stir for 1 hour after the spraying is completed until the mixture is uniform, then take it out for later use.

[0080] Add 34Kg of EPDM rubber, 22Kg of EPDM rubber, 3Kg of EVA (28% VA content), 3Kg of polyethylene glycol, 8.8Kg of naphthenic oil, and 9.6Kg of unsaturated fatty acid zinc. 75L internal mixer mixed separately, mixed at 60°C for 6 minutes, rotating speed 80r / min, deglue, parked at room temperature for use; mixed 460Kg of white carbon black TBTD-65 auxiliary agent, 100Kg of talc powder, unsaturated fatty acid zinc 5Kg, 12Kg of naphthenic oil, and 3Kg of methacrylic acid were put into a 75L internal mixer for 7 times, and mixed with 80Kg of pre-dispersed masterbatch, a...

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Abstract

The invention relates to a pre-dispersing masterbatch particle of liquid rubber chemicals and a preparation method thereof. The compound comprises a first pre-mixture, a second pre-mixture and an optional processing agent, wherein the first pre-mixture comprises a liquid vulcanizing agent and white carbon black; the second pre-mixture comprises rubber base materials, EVA (ethylene vinyl acetate) resins, a lubricant, a dispersing agent, processing oil and an inorganic filler; and the optional processing agent comprises a lubricant, processing oil and a coupling agent. The invention also relates to a preparation method of the pre-dispersing masterbatch particle of the liquid rubber chemicals. The process is simple, and the product dispersibility is good, thus the method is beneficial to the absorption in the blending process and ensures the optimum activity of the effective components, the blending time is reduced, and the defects of delaying the blending process caused by the different polarities of the liquid assistant and rubbers.

Description

technical field [0001] The present application relates to a pre-dispersed masterbatch of liquid rubber additives, especially a pre-dispersed masterbatch of liquid vulcanization aids, and also relates to a preparation method of the pre-dispersed masterbatch. Background technique [0002] Rubber additives are an important branch of fine chemicals. The performance of their products directly affects the level of products in the entire rubber processing industry and has an important impact on downstream industries. Rubber additives are the general term for various chemicals that are added to rubber materials during rubber processing and can improve rubber processing performance, improve the quality of rubber products, and reduce costs. They are an indispensable and important part of the rubber processing industry. Most of the rubber additives are powder chemicals, and a small part of the additives are liquid. The mixing of liquid additives is slow due to the difference in polari...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/16C08L9/02C08L9/06C08L33/04C08L27/06C08L11/00C08L23/08C08K13/02C08K3/36C08K3/34C08K5/5398C08K5/40C08K5/3492
Inventor 连加松赵奕玲丁林
Owner LIANYUNGANG LIANLIAN CHEM CO LTD
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