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Vulcanization scorch retarder mother colloidal particles and preparation method thereof
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A masterbatch and anti-scorch agent technology, applied in the field of vulcanized anti-scorch agent masterbatch and its preparation, can solve the problems of waste, pollution, low efficiency, etc., and achieve low cost, strong controllability, and improved production capacity Effect
Inactive Publication Date: 2016-06-22
JIAXING BEIHUA POLYMER ADDITIVES
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Problems solved by technology
Today, most industries still use its powder for processing. This production method is inefficient and will lead to a lot of waste. At the same time, it is accompanied by serious pollution. Through research and improvement, our company has proposed this current rubber anti-scorch agent. Masterbatch production technology solves the above problems in one fell swoop and plays a role in promoting the production of the rubber industry
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Embodiment 1-5
[0026] In the following examples 1-5 and comparative examples:
[0027] PVI was from Ningbo Suhua Polymer Co., Ltd.
[0028] Naphthenic oil comes from Suzhou Saipahan Special Oil Co., Ltd.
[0029] PETS-3 was obtained from Liaocheng Ruijie Chemical Co., Ltd.
[0030] Natural rubber comes from Hangzhou Sanda Rubber Plastic Hardware Products Factory.
[0031] Carbon black was from Ningbo Yuanheng Wax Industry Co., Ltd.
Embodiment 1
[0033] Mix 65 kg of PVI, 5 kg of naphthenic oil, 5 kg of PETS-3, 25 kg of natural rubber and carbon black through the banburying equipment for banburying and stirring, pour it out after about 50 minutes, and place the raw materials on the open space to cool. After that, it is added into a twin-screw extruder for extrusion and granulation to obtain a finished product.
[0034] The processing conditions of the twin-screw extruder are that the temperature of the first zone is 50-70°C, the temperature of the second zone is 60-80°C, the temperature of the third zone is 60-80°C, the temperature of the fourth zone is 60-80°C, and the temperature of the fifth zone is 70-90°C, the temperature in the sixth zone is 80-100°C. The specific test results are shown in Table 1.
Embodiment 2
[0036] Mix 70 kg of PVI, 5 kg of naphthenic oil, 5 kg of PETS-3, 20 kg of natural rubber and carbon black through the banburying equipment for banburying and stirring, pour it out after about 50 minutes, and place the raw materials on the open space to cool. After that, it is added into a twin-screw extruder for extrusion and granulation to obtain a finished product.
[0037] The processing conditions of the twin-screw extruder are that the temperature of the first zone is 50-70°C, the temperature of the second zone is 60-80°C, the temperature of the third zone is 60-80°C, the temperature of the fourth zone is 60-80°C, and the temperature of the fifth zone is 70-90°C, the temperature in the sixth zone is 80-100°C. The specific test results are shown in Table 1.
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Abstract
The invention belongs to the technical field of polymer materials, and in particular relates to a vulcanized anti-scorch agent masterbatch and a preparation method thereof. The material contains the following raw materials in percentage by weight: 65-88% of PVI powder, 1-5% of softener, Dispersant 1-5%, carrier rubber 10-25%. The vulcanized anti-scorch agent masterbatch particles have the function of delaying the initial vulcanization of NR and SR without affecting the total vulcanization time, which can greatly promote the storage stability of vulcanized rubber and improve the production capacity of equipment. Combined use with thiazole accelerators can improve processing safety without affecting the properties of vulcanizates.
Description
technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a vulcanized anti-scorch agent masterbatch and a preparation method thereof. Background technique [0002] In the rubber industry, with the development of production and the improvement of the performance of rubber products, the problem of increasing heat generation of rubber during processing has appeared one after another. Therefore, how to ensure the safety during processing has become a very important issue. The main method commonly used now is to add a small amount of anti-scorch agent (or scorching preventer, retarder) in the process of processing to improve the safety of the process and increase the storage life of the rubber or mortar. When it is difficult to adjust the vulcanizationsystem to achieve the required operational safety, adding an anti-scorch agent can often easily meet the requirements for the scorch performance of the rubber compound....
Claims
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Application Information
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