High-content high-universality talcum powder master filler and production equipment and method thereof

A technology of filling masterbatch and talc powder, applied in coating and other directions, can solve the problems of unsightly appearance of the whole particle, difficult recovery of diluent, secondary dust pollution, etc., to solve the problem of high temperature operating environment, small investment site, and energy saving Effect

Active Publication Date: 2013-03-20
KINGFA SCI & TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method has the following defects: 1) the diluent is difficult to recycle, which easily causes environmental pollution and material waste, and because the ratio of the added diluent is 15% to 35%, the subsequent drying process is relatively difficult and increases the manufacturing cost; 2) The hardness of the particles obtained by this kind of processing method is very low, and it is easy to cause secondary dust pollution in the subsequent transportation and use process
3) Since the scraper of the extruder equipment is not close to the wall of the machine head, but is 3 to 5 cm away from the wall of the machine head, the material strip is interrupted by the scraper instead of being cut by the scraper, so that the cut The length of the products varies, and the appearance of the whole particle is very ugly, which is difficult for customers to accept

Method used

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  • High-content high-universality talcum powder master filler and production equipment and method thereof
  • High-content high-universality talcum powder master filler and production equipment and method thereof
  • High-content high-universality talcum powder master filler and production equipment and method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038]An equipment for producing talcum powder-filled master batches with high content and wide versatility, including a forced feeder, a pair of extrusion rollers 4, a granulation roller 5, a curved screen 6, a finished product outlet 7, and a powder recovery device 8.

[0039] The forced feeding machine includes a forced feeding bin 2 and a forced feeding screw 3. The forced feeding bin 2 is conical in shape with a wide top and a narrow bottom. The forced feeding screw 3 is located at the central axis in the forced feeding bin 2.

[0040] The upper opening of the forced feeding bin 2 is facing the discharge port of the mixer 1, and the materials coming out of the mixer 1 are sent to the forced feeding machine. The lower opening of the forced feeding bin 2 is facing against the pair of extrusion rollers 4. The extruding pair of rollers 4 is cylindrical, the gap can be adjusted, and its outer diameter is 100-500mm; the surface of the extruding pair of rollers 4 is evenly distr...

Embodiment 2

[0045] A kind of method based on the production high content of embodiment 1 equipment, the talcum powder filling masterbatch of wide versatility, comprises the following steps:

[0046] (1) Dissolve 3 parts of sodium silicate in 5 parts of pure water preheated to 60°C to form a sodium silicate solution; mix 90 parts of talcum powder, 1 part of zinc stearate, 1 part of calcium stearate, and sodium silicate The solution is put into the mixer successively, mixed at a low speed (100rpm) for 1min, and then mixed at a high speed (1000rpm) for 8min; the parts mentioned are parts by weight;

[0047] (2) Put the mixed material into the forced feeder, the material goes to the granulation roller for granulation after passing through the extrusion rollers, and the obtained particles flow to the finished product outlet after being sieved by the curved sieve; sieved by the curved sieve The powder is extruded and granulated again and again through the powder recovery device; then the high-c...

Embodiment 3

[0050] A kind of method based on the production high content of embodiment 1 equipment, the talcum powder filling masterbatch of wide versatility, comprises the following steps:

[0051] (1) Dissolve 1 part of sodium silicate in 3 parts of pure water preheated to 50°C to form a sodium silicate solution; put 95 parts of talc powder, 1 part of zinc stearate, and sodium silicate solution into the mixer in sequence, First mix at low speed (200rpm) for 0.5min, then mix at high speed (1200rpm) for 5min; the parts mentioned are parts by weight;

[0052] (2) Put the mixed material into the forced feeder, the material goes to the granulation roller for granulation after passing through the extrusion rollers, and the obtained particles flow to the finished product outlet after being sieved by the curved sieve; sieved by the curved sieve The powder is extruded and granulated again and again through the powder recovery device; then the high-content and versatile talc powder is collected a...

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Abstract

The invention discloses a high-content high-universality talcum powder master filler and production equipment and a method thereof. The talcum powder master filler is prepared by 90 to 98 parts of talcum powder, 1 to 2 parts of stearate, 1 to 3 parts of sodium silicate and 3 to 5 parts of water. The content of talcum powder of the master filler can reach 90% to 95%, a great quantity of energy for fusion and plasticization is saved, production cost of the master filler is reduced greatly, and the problem of high-temperature operation environments caused by high temperature equipment is solved. Talcum powder filling content is high, and adding content of the master filler is low in subsequent use, so that adding cost of the master filler is reduced, universality of the talcum powder master filler is realized thoroughly. Since the talcum powder master filler prepared by the method contains no plastic resin, the problem about consistency of matrix during subsequent use can be ignored, and the high-content high-universality talcum powder master filler can be widely added and used in various talcum powder filling modified plastic products.

Description

technical field [0001] The invention belongs to the technical field of talcum powder production, and in particular relates to a talc powder-filled masterbatch with a talcum powder content of 90-95% and wide versatility, as well as production equipment and a production method thereof. Background technique [0002] Talc powder is a cheap inorganic filler commonly used in the plastic industry. It can effectively improve the rigidity, modulus and dimensional stability of the material and greatly reduce the cost. It is widely used in the plastic modification industry. [0003] However, talc powder, especially ultra-fine talc powder, has a small bulk density, and it is easy to generate dust during the production process of plastic modification, which pollutes the production workshop and seriously affects the health of production employees; in addition, due to the small bulk density of talc powder, the modification When plastics are processed with screw extruder and talcum powder i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K3/34C08K5/098C08L21/00C08L101/00C09D7/12B29B9/00
Inventor 唐宇航叶南飚王大中钱永红宁凯军蔡彤旻
Owner KINGFA SCI & TECH CO LTD
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