A composite auxiliary agent for polyvinyl chloride polymerization

A technology of composite additives and polyvinyl chloride, which is applied in the field of composite additives, can solve the problems that the fluidity of polyvinyl chloride has little influence and thermal stability needs to be further improved, so as to achieve low investment and operation costs, increase apparent density, Simple operation effect

Active Publication Date: 2022-01-14
鄂尔多斯市瀚博科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent application has improved the whiteness and thermal stability time of PVC to a certain extent, but has little effect on the fluidity of PVC, and its thermal stability needs to be further improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Pump the polyvinyl chloride resin slurry into the slurry tank, add 15kg of compound additives from the defoamer storage tank, according to the following composition and mass percentage: polyoxypropylene oxide ethylene glyceryl ether 15%, antioxidant 264 15% , Monopentaerythritol 5%, epoxy soybean oil 5%, ethanol 60%. The foam condition of the stripper, heat aging whiteness, heat stabilization time, flow time and apparent density are shown in Table 1.

Embodiment 2

[0046] Pump the polyvinyl chloride resin slurry into the slurry tank, add 15kg of compound additives from the defoamer storage tank, according to the following composition and mass percentage: polyoxyethylene polyoxypropylene pentaerythritol ether 15%, antioxidant 1024 15 %, dipentaerythritol 5%, epoxy castor oil 5%, methanol 60%. The foam condition of the stripper, heat aging whiteness, heat stabilization time, flow time and apparent density are shown in Table 1.

Embodiment 3

[0048] Pump the polyvinyl chloride resin slurry into the slurry tank, add 15kg of compound additives from the defoamer storage tank, according to the following composition and mass percentage: polyoxypropylene oxide ethylene glyceryl ether 10%, antioxidant 264 10% , Monopentaerythritol 2.5%, Epoxidized soybean oil 5%, Ethanol 72.5%. The foam condition of the stripper, heat aging whiteness, heat stabilization time, flow time and apparent density are shown in Table 1.

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Abstract

The invention relates to the technical field of polyvinyl chloride production, in particular to a composite auxiliary agent for polyvinyl chloride polymerization. The composite auxiliary agent is composed of the following components in percentage: polyether defoamer 5%-40%, Antioxidant 5%-30%, heat stabilizer 5%-15%, antistatic agent 40%-80%, the invention has the advantages of significantly improving the thermal stability, aging whiteness and flow performance of polyvinyl chloride.

Description

technical field [0001] The invention relates to the technical field of polyvinyl chloride production, in particular to a composite auxiliary agent for polyvinyl chloride polymerization. Background technique [0002] Polyvinyl chloride is referred to as PVC (Polyvinyl chloride) in English. It is a vinyl chloride monomer (VCM) in peroxide, azo compound and other initiators; or under the action of light and heat according to the mechanism of free radical polymerization. made polymers. Polyvinyl chloride is one of the five major synthetic resins in the world. It used to be the most produced general-purpose plastic in the world, and it is widely used. It is widely used in building materials, industrial products, daily necessities, floor leather, floor tiles, artificial leather, pipes, wires and cables, packaging films, bottles, foaming materials, sealing materials, fibers, etc. Polyvinyl chloride has the advantages of superior performance, strong versatility and low price. [...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F114/06C08F2/44
CPCC08F114/06C08F2/44C08L71/02C08L91/00C08K5/13C08K5/25C08K5/053
Inventor 赵长森张凤凤张强王鑫龙牛强
Owner 鄂尔多斯市瀚博科技有限公司
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