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Flow modifier for polyvinyl chloride

A flow modifier, polyvinyl chloride technology

Inactive Publication Date: 2015-11-25
ANHUI BEIMA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the surface of nano-calcium carbonate is hydrophilic and oleophobic, and its compatibility with the matrix is ​​poor. It is difficult to form a binding force with the PVC matrix, and it is easy to generate interface defects, resulting in a decrease in material performance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] A flow modifier for polyvinyl chloride, prepared from the following raw materials in parts by weight (kg): methyl methacrylate 20, butyl acrylate 30, sodium dodecylbenzenesulfonate 0.3, divinylbenzene 0.3, potassium persulfate 0.3, nano calcium carbonate 35, sodium stearate 0.1, polyethylene oxide 0.6, dimethyl silicone oil 0.4, silver nitrate 3, molybdenum sulfide 11, hydroxyl starch 8, silane coupling agent kh5500.5, Appropriate amount of ionized water;

[0013] The flow modifier for polyvinyl chloride is prepared through the following specific steps:

[0014] (1) Add sodium dodecylbenzenesulfonate and appropriate amount of deionized water into the reaction kettle, stir for 30 minutes, then add butyl acrylate and divinylbenzene for emulsification reaction for 1 hour, adjust the temperature to 75°C and add 1 / 3 times the amount of potassium persulfate solution, continue to react for 2h, and cool down for subsequent use;

[0015] (2) Add the product prepared in step (...

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PUM

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Abstract

The invention discloses a flow modifier for polyvinyl chloride. The flow modifier for the polyvinyl chloride is prepared from the following raw materials in part by weight: 20-23 parts of methyl methacrylate, 30-35 parts of butyl acrylate, 0.3-0.5 part of sodium dodecylbenzene sulfonate, 0.3-0.5 part of divinyl benzene, 0.3-0.4 part of potassium peroxymonosulfate, 35-40 parts of nano calcium carbonate, 0.1-0.2 part of sodium stearate, 0.6-0.8 part of polyethylene oxide, 0.4-0.6 part of dimethyl silicone, 3-4 parts of silver nitrate, 11-14 parts of molybdenum sulphide, 8-10 parts of hydroxyethyl starch, 0.5-0.7 part of silane coupling agents kh550 and a defined amount of deionized water. The prepared flow modifier for the PVC (polyvinyl chloride) can be widely used for the field of PVC sections, tubes and plates; properties of impact resistances and high strength of PVC materials can be improved; and the flow modifier for the polyvinyl chloride is worthy of being popularized.

Description

technical field [0001] The invention relates to the technical field of PVC modifiers, in particular to a flow modifier for polyvinyl chloride. Background technique [0002] With the continuous development of the polyvinyl chloride industry, especially the rapid economic growth in developing countries, the demand for polyvinyl chloride has increased rapidly. Due to its excellent corrosion resistance, flame retardancy, and insulation properties, polyvinyl chloride has been widely used application. However, it is brittle and has poor impact resistance. In order to improve the performance of polyvinyl chloride and expand its application range, some small-molecule plasticizers were commonly used at first, but these small-molecule plasticizers are in the process of product processing and use. , volatilization and migration occur, which not only pollutes the environment, but also makes the product brittle and hard, losing its use value. At present, people add modifiers to toughen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/08C08K9/06C08K9/10C08K9/04C08K3/28C08K3/30C08K3/26C08F220/18C08F220/14C08F212/36C08F2/26C08L27/06
Inventor 陈篯孙维乐
Owner ANHUI BEIMA TECH CO LTD
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