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Preparation process of self-coated isolated plastic particles

A plastic particle and preparation technology, applied in the field of plastic processing, can solve the problems of denaturation, lowering the quality of plastic products, excessive loss of functional components of plastic particles, etc., and achieve the effect of improving uniformity, improving binding force and reducing interference

Active Publication Date: 2021-07-02
南通瑞诚高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Existing plastic granules, as semi-finished products of plastic products, have been industrially produced on a large scale, but for a period of time before they become products, due to improper storage or other accidents, the functional components in the plastic granules will be lost too much or denatured , reduce the quality of plastic products

Method used

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  • Preparation process of self-coated isolated plastic particles
  • Preparation process of self-coated isolated plastic particles
  • Preparation process of self-coated isolated plastic particles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] see figure 1 , a preparation process of self-encapsulated isolated plastic particles, comprising the following steps:

[0050] S1. Weigh the following raw materials in parts by weight according to the formula: 100 parts of plastic substrate, 16 parts of talcum powder, 2 parts of calcium stearate, 1 part of carbon black, 2 parts of nano-titanium dioxide, 2 parts of plasticizer, antioxidant 2 parts, 0.5 parts of flame retardant, stirred at 105-115°C for 100 minutes, the stirring speed is 500r / min, after mixing evenly, a mixture is obtained, which is set aside;

[0051] S2. Take the mixed material and transport it to the barrel of the twin-screw extruder, heat it to 150°C for melt blending, the temperature of the new head on the extruder is 240°C, and the screw speed is 120r / min;

[0052] S3, then put the coating sheet 1 evenly through the front of the new machine head, and it migrates to the wall under the action of the magnetic field inside the molten material, and is e...

Embodiment 2

[0065] see figure 1 , a preparation process of self-encapsulated isolated plastic particles, comprising the following steps:

[0066] S1. Weigh the following raw materials in parts by weight according to the formula: 110 parts of plastic substrate, 18 parts of talcum powder, 3 parts of calcium stearate, 2 parts of carbon black, 4 parts of nano-titanium dioxide, 3 parts of plasticizer, antioxidant 3 parts, 1 part of flame retardant, stirred at 110°C for 110 minutes at a stirring speed of 550r / min, mixed evenly to obtain a mixture, and set aside;

[0067] S2. Take the mixed material and transport it to the barrel of the twin-screw extruder, heat it to 160°C for melt blending, the temperature of the new head on the extruder is 245°C, and the screw speed is 135r / min;

[0068] S3, then put the coating sheet 1 evenly through the front of the new machine head, and it migrates to the wall under the action of the magnetic field inside the molten material, and is extruded together with...

Embodiment 3

[0073] see figure 1 , a preparation process of self-encapsulated isolated plastic particles, comprising the following steps:

[0074] S1. Weigh the following raw materials in parts by weight according to the formula: 120 parts of plastic substrate, 20 parts of talcum powder, 4 parts of calcium stearate, 3 parts of carbon black, 6 parts of nano-titanium dioxide, 4 parts of plasticizer, antioxidant 5 parts, 1.5 parts of flame retardant, stirred at 115°C for 120 minutes, with a stirring speed of 600r / min, mixed evenly to obtain a mixture, and set aside;

[0075] S2. Take the mixed material and transport it to the barrel of the twin-screw extruder, heat it to 170°C for melt blending, the temperature of the new head on the extruder is 250°C, and the screw speed is 150r / min;

[0076] S3, then put the coating sheet 1 evenly through the front of the new machine head, and it migrates to the wall under the action of the magnetic field inside the molten material, and is extruded togethe...

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Abstract

The invention discloses a preparation process of self-coated isolated plastic particles, and belongs to the technical field of plastic processing.The preparation process has the advantages that a novel machine head can be introduced into an extrusion granulation process, coating sheets with magnetic single surfaces are put before extrusion, and the coating sheets can be attached to the inner wall to be distributed under the magnetic attraction action applied by the novel machine head. Meanwhile, the superposition phenomenon is avoided by utilizing the spherical smooth characteristic of the back surface of the coating sheet, the coating sheet is pressurized on the attached inner wall in a manner of extruding internal gas, and meanwhile, the gas leakage action is triggered, so that molten materials remaining on the inner wall can be purged, and the coating sheet can be completely attached to the inner wall of the machine head. Moreover, lift force can be formed under the action of airflow to reduce frictional resistance during migration of the coating sheets, the coating sheets can cover the outer surfaces of the plastic particles for isolation protection after being formed and extruded, when the plastic particles are processed into products, only the plastic particles need to be melted, the coating sheets are recycled through a magnetic field, and the quality of the plastic particles can be remarkably improved.

Description

technical field [0001] The invention relates to the technical field of plastic processing, in particular to a preparation process of self-encapsulated isolated plastic particles. Background technique [0002] Plastic is a high molecular compound polymerized by addition polymerization or polycondensation reaction with monomer as raw material. It has medium deformation resistance and is between fiber and rubber. Lubricants, colorants and other additives. [0003] The main component of plastic is resin. Resin refers to a polymer compound that has not been mixed with various additives. The term resin was originally named after the lipids secreted by animals and plants, such as rosin and shellac. Resin accounts for about 40%-100% of the total weight of plastic. The basic properties of plastics are mainly determined by the nature of the resin, but additives also play an important role. Some plastics are basically composed of synthetic resins, with no or few additives, such as...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B9/12B29B9/06B29C48/15B29C48/30C08L23/06C08L23/12C08L27/06C08L25/06C08L33/12C08K13/02C08K3/34C08K5/098C08K3/04C08K3/22
CPCB29B9/12B29B9/06B29C48/15B29C48/30C08K13/02C08K3/34C08K5/098C08K3/04C08K3/22C08K2201/011C08K2003/2241C08L23/06C08L23/12C08L27/06C08L25/06C08L33/12
Inventor 王奕王腾飞田冬梅
Owner 南通瑞诚高分子材料有限公司
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