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Reverse mixing technology applied to chlorosulfonated polyethylene rubber and adopting internal mixer

A chlorosulfonated polyethylene and rubber banburying technology is applied in the field of rubber production and processing, which can solve the problem of low performance indicators of rubber products, and achieve the effects of reducing production costs, improving performance, and saving space and energy.

Active Publication Date: 2015-12-30
ANSHAN HONGTU ANTICORRSIVE ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the traditional rubber formulas adopt this vulcanization method (including the formulas studied abroad). In addition to the pollution to personnel, equipment and the environment in the traditional formulas mentioned above, the various performance indicators of the rubber products are also not tall

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Prepare the raw materials, each raw material in parts by mass: 100 parts of chlorosulfonated polyethylene (CSM), 20 parts of magnesium oxide, 1 part of stearic acid, 50 parts of carbon black N55050, 6 parts of dioctyl phthalate, vulcanizing agent 2 parts of DCP, 0.5 parts of sulfur;

[0046] Crushing the lumpy part of the raw material;

[0047] Heat the internal mixer to 80°C, put in the prepared magnesium oxide, stearic acid, carbon black N550 and dioctyl fat and mix for 10 minutes;

[0048] Mixing the mixed material in the internal mixer together with the prepared chlorosulfonated polyethylene for 3 minutes to obtain the rubber compound;

[0049] Add the vulcanizing agent DCP and sulfur to the rubber material and mix them in the open mill for 3 minutes; carry out thin pass treatment, press into 0.5mm thin slices, and then pack them into triangular bags; then press them into 8mm film on the open mill, ventilate Reduce to normal temperature to obtain chlorosulfonated ...

Embodiment 2

[0054] Raw materials are prepared, and the raw materials are as follows in parts by mass: 100 parts of chlorosulfonated polyethylene CSM, 25 parts of magnesium oxide, 2.5 parts of stearic acid, 50 parts of carbon black N55050, 10 parts of dioctyl ester, 2 parts of vulcanizing agent DCP, and 1 part of sulfur;

[0055] Among them, dioctyl is dioctyl phthalate;

[0056]Crushing the lumpy part of the raw material;

[0057] Heat the internal mixer to 80°C, put in the prepared magnesium oxide, stearic acid, carbon black N550 and dioctyl fat and mix for 10 minutes;

[0058] Mixing the mixed material in the internal mixer together with the prepared chlorosulfonated polyethylene in the internal mixer for 3 minutes to obtain the rubber compound;

[0059] Add the vulcanizing agent DCP and sulfur to the rubber material and mix them in the open mill for 3 minutes, carry out thin pass treatment, press into 0.5mm thin slices, and then make triangle bags; then press into 8mm film on the open...

Embodiment 3

[0062] Method is with embodiment 1, and difference is:

[0063] (1) The raw materials are: 100 parts of chlorosulfonated polyethylene, 15 parts of magnesium oxide, 2.5 parts of stearic acid, 40 parts of carbon black N55040 parts, 10 parts of dioctyl phthalate, vulcanizing agent DCP1.5 part, sulfur 1 part;

[0064] (2) Heat up the internal mixer to 90°C, put in the prepared magnesium chloride, stearic acid, carbon black N550 and dioctyl fat and mix for 9 minutes;

[0065] (3) Add chlorosulfonated polyethylene and mix for 3.5 minutes to obtain a rubber compound; mix in an open mill for 3.5 minutes;

[0066] (4) Compress it into a 10mm film on an open mill, ventilate it to normal temperature, and obtain chlorosulfonated polyethylene rubber; the tensile strength is 22MPa, the tear strength is 45KN / M, the elongation at break is 350%, and the Shore hardness 75HA, wear 0.2cm 3 / 1.6km;

[0067] Using traditional methods to conduct comparative experiments, the obtained chlorosulfon...

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Abstract

A reverse mixing technology applied to chlorosulfonated polyethylene rubber and adopting an internal mixer comprises the following steps: (1), raw materials comprising chlorosulfonated polyethylene, magnesium oxide, stearic acid, carbon black N550, dioctyl phthalate, a vulcanizing agent DCP and sulfur are prepared; (2), crushing is performed; (3), the internal mixer is heated, magnesium oxide, stearic acid, the carbon black N550 and dioctyl phthalate are added and mixed; (4), chlorosulfonated polyethylene is added for mixing; (5), a sizing material is added to the vulcanizing agent DCP, and the mixture and sulfur are added to an open mill and mixed; tight milling is performed, and triangular bags are packaged; the bags are pressed into adhesive strips on the open mill and ventilated to be cooled to the ordinary temperature. According to the method, drying processing on all the materials is not needed, the field and energy for drying are saved, the production cost is reduced, and the product performance is improved.

Description

technical field [0001] The invention belongs to the technical field of rubber production and processing, and in particular relates to a reverse mixing process of a chlorosulfonated polyethylene rubber internal mixer. Background technique [0002] At present, the commonly used chlorosulfonated polyethylene rubber formulations mostly use lead-containing metal oxides. The metal oxide plus accelerator vulcanization system is easy to cause scorching problems during processing, especially lead monoxide is easy to produce scorching, which will cause The rubber compound causes waste of materials during the processing of semi-finished products; in addition, it also causes pollution to humans and equipment. Because lead monoxide (also known as yellow lead powder) has a relatively high density (9.53 g / cm3) and is toxic, it is used in It is easy to cause pneumoconiosis poisoning to humans during batching; in addition, lead monoxide reacts with sulfur in the rubber compound to form black...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B7/74C08L23/34C08K13/02C08K3/22C08K5/09C08K3/04C08K5/12
Inventor 张立钢李国锋李绍颖
Owner ANSHAN HONGTU ANTICORRSIVE ENG
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