PVC (polyvinyl chloride) composite modifier and preparation method thereof

A composite modifier and appropriate technology, applied in the field of pvc composite modifier and its preparation, can solve difficult problems such as pvc matrix binding force, material performance degradation, interface defects, etc., to achieve good operability and improve toughness , The effect of simple preparation method

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 PVC composite modifier and its preparation method are prepared from the following parts by weight (kg) of raw materials: methyl methacrylate 20, butyl acrylate 30, sodium dodecylbenzene sulfonate 0.3, divinyl Benzene 0.3, potassium persulfate 0.3, nano calcium carbonate 35, sodium stearate 0.1, polyethylene oxide 0.6, simethicone 0.4, microencapsulated red phosphorus 13, aluminum sulfate 6, sodium-based attapulgite 12, silane couple Coupling agent kh5500.5, proper amount of deionized water;

[0013] The PVC composite modifier and the preparation method thereof are prepared by the following specific steps:

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

[0015] (2) A...

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PUM

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Abstract

The invention discloses a PVC (polyvinyl chloride) composite modifier and a preparation method thereof. The PVC composite modifier 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 persulfate, 35-40 parts of nanometer 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 oil, 13-15 parts of micro-encapsulation red phosphorus, 6-7 parts of aluminum sulfate, 12-13 parts of sodium based attapulgite, 0.5-0.7 part of silane coupling agents kh550 and a defined amount of deionized water. The preparation method of the PVC composite modifier is simple, properties of toughness, flame retardancy and corrosion resistance of PVC can be improved, and the PVC composite modifier has good operability and is suitable to be popularized and used widely.

Description

Technical field [0001] The invention relates to the technical field of pvc modifiers, in particular to a pvc composite modifier and a preparation method thereof. Background technique [0002] With the continuous development of the polyvinyl chloride industry, especially the rapid economic growth of developing countries, the demand for polyvinyl chloride has increased more rapidly. Polyvinyl chloride has been widely used due to its excellent corrosion resistance, flame retardant, and insulation properties. application. However, its brittleness and poor impact resistance. In order to improve the performance of polyvinyl chloride and expand its scope of use, initially, some small-molecule plasticizers are commonly used, but these small-molecule plasticizers are used in the processing and use of products. , The occurrence of volatilization and migration will not only pollute the environment, but also make the product brittle and hard, and lose use value. At present, people add modi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L33/12C08K13/06C08K9/10C08K9/06C08K9/04C08K3/02C08K3/30C08K3/34C08K3/26C08F220/14C08F220/18C08F212/36C08F2/26
Inventor 陈篯孙维乐
Owner ANHUI BEIMA TECH CO LTD
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