Powder blending technology of PVC reinforcing agent and sealed powder blending machine

A kind of enhancer, fully sealed technology, applied in the chemical field, can solve the problems of air and dust flying in the exhaust hole, material moisture evaporation, environmental protection failure, etc., to achieve the effect of saving electric energy, reducing the volatilization of components, energy saving and environmental protection

Inactive Publication Date: 2015-08-05
HAINING LONGDA NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The power consumption of the above-mentioned PVC reinforcing agent used in the powder mixer is generally 75 kW or 95 kW, and some even reach 120 kW. Environmental protection does not meet the requirements of the government; in addition, the material is stirred in a semi-sealed high-speed state, which will easily cause the water in the material to evaporate, the internal pressure will rise, and the stirring temperature will rise to 120°C. It is necessary to put in a coolant and cool it to room temperature. The temperature of the medium material changes greatly, and it is easy to turn yellow and change color, and when the temperature reaches 120°C, there will be a plasticization phenomenon, which will cause the product to age in advance

Method used

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  • Powder blending technology of PVC reinforcing agent and sealed powder blending machine
  • Powder blending technology of PVC reinforcing agent and sealed powder blending machine
  • Powder blending technology of PVC reinforcing agent and sealed powder blending machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The powder mixing process of this PVC reinforcing agent, its steps are as follows:

[0040] a, prepare raw materials, the mass parts of each raw material component are respectively:

[0041] Hydrotalcite 8 parts

[0042] 3 parts zinc stearate

[0043] 2 parts calcium stearate

[0044] Lubricant 34 parts

[0045] Calcium carbonate 15 parts

[0046] b. Mix the above ingredients according to their respective parts by mass, add them into a fully sealed powder mixer, and stir for 40 minutes at 25°C. The internal rotation of the fully sealed powder mixer is 400 rpm, and the external rotation is 7 rpm. / min;

[0047] c. Take it out from the fully sealed powder mixer and pack it.

[0048] Specifically, in step a, the lubricant is paraffin. In step b, the power of the internally rotating main motor 6 is 11KW, and the power of the externally rotating auxiliary motor 8 is 7.5KW.

Embodiment 2

[0050] The powder mixing process of this PVC reinforcing agent, its steps are as follows:

[0051] a, prepare raw materials, the mass parts of each raw material component are respectively:

[0052] Hydrotalcite 8.5 parts

[0053] Zinc stearate 4 parts

[0054] Calcium stearate 2.5 parts

[0055] Lubricant 37 parts

[0056] Calcium carbonate 17 parts

[0057] b. Mix the above ingredients according to their respective mass parts, add them into the fully sealed powder mixer, and stir for 45 minutes at 30°C. The internal rotation of the fully sealed powder mixer is 420 rpm, and the external rotation is 10 rpm. / min;

[0058]c. Take it out from the fully sealed powder mixer and pack it.

[0059] Specifically, in step a, the lubricant is stearic acid. In step b, the power of the internally rotating main motor 6 is 11KW, and the power of the externally rotating auxiliary motor 8 is 7.5KW.

Embodiment 3

[0061] The powder mixing process of this PVC reinforcing agent, its steps are as follows:

[0062] a, prepare raw materials, the mass parts of each raw material component are respectively:

[0063] Hydrotalcite 10 parts

[0064] Zinc stearate 5 parts

[0065] 3 parts calcium stearate

[0066] Lubricant 40 parts

[0067] Calcium carbonate 20 parts

[0068] b. Mix the above ingredients according to their respective parts by mass, add them into a fully sealed powder mixer, and stir for 50 minutes at 35°C. The internal rotation of the fully sealed powder mixer is 450 rpm, and the external rotation is 12 rpm. / min;

[0069] c. Take it out from the fully sealed powder mixer and pack it.

[0070] Specifically, in step a, the lubricant is monoglyceride. In step b, the power of the internally rotating main motor 6 is 11KW, and the power of the externally rotating auxiliary motor 8 is 7.5KW.

[0071] like figure 1 , figure 2 As shown, the present invention also discloses a fu...

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Abstract

The invention provides a powder blending technology of a PVC reinforcing agent and a sealed powder blending machine, which belong to the technical field of chemical industry. The powder blending technology comprises the following steps: mixing 7-10 parts of hydrotalcite, 3-5 parts of zine stearate, 2-3 parts of calcium stearate, 34-40 parts of lubricant and 15-20 parts of calcium carbonate according to the mass part, adding in the sealed powder blending machine, stirring for 40-50 minutes at temperature of 25-35 DEG C, wherein the inward turning of the sealed powder blending machine is 400-450 rotation/minute, and the outward turning is 7-12 rotation/minute. In the sealed powder blending machine, the stirring speed is slow due to stirring at normal temperature, plasticizing phenomenon is not generated, volatilization of the material component can not be effectively controlled, service life of the product is prolonged, and product toughness is increased.

Description

technical field [0001] The invention belongs to the technical field of chemical industry and relates to a powder mixing process of PVC reinforcing agent and a fully sealed powder mixing machine thereof. Background technique [0002] PVC enhancer, also known as calcium-zinc stabilizer or PVC stabilizer, is a non-toxic calcium-zinc multifunctional composite stabilizer that does not contain lead, cadmium, barium and other heavy metals. It is based on calcium-zinc organic acid salt and hydrotalcite The main heat stabilizer. It has excellent thermal stability and lubricity, and also has light stabilizing effect; it has excellent initial coloring and color stability, which can improve the color brightness of products, and has excellent electrical insulation; it has unique coupling enhancement It can improve the compatibility of resin and filler, which can reduce production cost and improve the comprehensive performance of products. [0003] For example, in the Chinese invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B7/12B29B7/22C08L27/06C08K13/02C08K3/26C08K5/098C08K5/09C08K5/10
Inventor 张小华
Owner HAINING LONGDA NEW MATERIAL CO LTD
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