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Spraying-free PP/PCTG alloy material with colorful effect and preparation method thereof

An alloy material, spray-free technology, applied in the field of PP alloy materials, can solve the problems of flow marks on the surface of the workpiece, easy to be squeezed, ground, insufficient flashing effect, etc., to achieve excellent low temperature resistance and surface gloss, Improve the mechanical properties, the effect of good magic effect

Active Publication Date: 2020-03-24
FOSHAN KAIYUE GRAND SKY PLASTIC TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Symphony pearlescent pigments are mainly used in automobiles, motorcycles, bicycle coatings, powder coatings, architectural coatings, and pearlescent inks, but are rarely used in plastic products. Squeezing and grinding will weaken the pearlescent effect; the defects caused are that the pearlescent effect is insufficient, the arrangement is disordered, the flashing effect is not enough, and the effect of the painted part cannot be achieved. A substantial increase
[0005] Chinese patent CN103694564B discloses a PP / PMMA alloy material and its preparation method, which improves the scratch resistance, hardness and gloss of PP by preparing PP / PMMA alloy, but PMMA is a brittle material, adding PMMA will reduce PP impact resistance, which limits the application of PP / PMMA, and it does not have the ability to avoid spraying

Method used

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  • Spraying-free PP/PCTG alloy material with colorful effect and preparation method thereof
  • Spraying-free PP/PCTG alloy material with colorful effect and preparation method thereof
  • Spraying-free PP/PCTG alloy material with colorful effect and preparation method thereof

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Effect test

preparation example Construction

[0051] The present invention provides the preparation method of the spray-free PP / PCTG alloy material with illusion effect described in the above scheme, comprising the following steps:

[0052] Weigh each component according to the formula, and mix other components except the magic pearlescent masterbatch to obtain a mixture; the magic pearlescent masterbatch is fed by side feeding and extruded together with the mixture Granules, to obtain a spray-free PP / PCTG alloy material with a magic effect.

[0053] The invention mixes other components except the magic pearl masterbatch to obtain the mixture. Before the mixing, in the present invention, the PCTG is preferably dried at 80-90°C. In the present invention, the mixing is preferably performed in high-speed mixing equipment, and the rotation speed of the high-speed mixing equipment is preferably 500-700 r / min, more preferably 600 r / min.

[0054] After the mixed material is obtained, the present invention feeds the magic color...

Embodiment 1

[0058] Prepare the magic color pearl masterbatch according to the materials and components in Table 1.

[0059] The preparation method is: mix homopolymer PP resin, compatibilizer Ⅰ, magic pearlescent pigment, antioxidant and lubricant with a low-speed mixer for one minute, then add coupling agent and alignment agent by spraying, and pour the mixture into Put it into a continuous internal mixer for extrusion granulation, the temperature of the internal mixing room is 180-190°C, the internal mixing speed is 180rpm, the feeding speed is 12rpm, the temperature of the internal mixer is 180-205°C, and the main engine speed is 200rpm, to obtain Symphony Pearlescent Masterbatch 1-4.

[0060] In Table 1, the homopolymerized PP resin is high-flow transparent grade PP particles, and the melt index flow rate is 28g / 10min; the compatibilizer I is maleic anhydride grafted polypropylene, the graft ratio is 1.2%, and the melt index is 100g / 10min; the iridescent pearlescent pigment is a thr...

Embodiment 2

[0065] Prepare the spray-free PP / PCTG alloy material with illusion effect according to the materials and components in Table 2.

[0066] The preparation method is as follows: homopolymer PP resin, copolymer PP resin, PCTG, POE, compatibilizer II, lubricant and weather resistance agent are fully mixed in a high mixing pot for 6-10 minutes, and the mixture is fed into the extruder. Mouth extrusion granulation, magic color pearlescent masterbatch is fed by side feeding, which can effectively reduce the shearing of the screw. The temperature of the extruder is 180-220°C, the rotation speed of the main engine is 200rpm, and the feeding speed is 12rpm; the side feeding is 5-10rpm, and the temperature of the side feeding equipment is 180-205°C; after melt extrusion and granulation, the product with Spray-free PP / PCTG alloy material with illusion effect.

[0067] In Table 2, the copolymerized PP resin is a high-flow random copolymerized particle, and the melt finger flow rate is 22g / ...

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Abstract

The invention relates to the technical field of PP alloy materials, in particular to a spraying-free PP / PCTG alloy material with a colorful effect and a preparation method of the spraying-free PP / PCTGalloy material. The alloy material comprises the following components in parts by mass: 10-35 parts of homopolymerized PP resin, 40-65 parts of copolymerized PP resin, 5-15 parts of PCTG resin, 4-8 parts of a POE flexibilizer, 1-2 parts of a lubricant, 0.5-1.5 parts of a weather-resistant agent, 5-15 parts of a colorful pearlescent master batch and 0-5 parts of a compatilizer II, wherein the colorful pearlescent master batch comprises the following preparation raw materials in parts by mass: 60-90 parts of homopolymerized PP resin, 3-5 parts of a compatilizer I, 10-30 parts of a colorful pearlescent pigment, 1-5 parts of a coupling agent, 1-5 parts of a directional arrangement agent, 1-2 parts of a lubricant and 0.1-0.5 part of an antioxidant. The PP / PCTG alloy material has good impact resistance, and a good colorful effect can be achieved without spraying.

Description

technical field [0001] The invention relates to the technical field of PP alloy materials, in particular to a spray-free PP / PCTG alloy material with illusion effect and a preparation method thereof. Background technique [0002] Spraying is a very mature process. In order to meet the requirements of plastic surface performance and aesthetics, it is often necessary to spray the surface of the product. However, there are some obvious disadvantages of spraying, such as: easy to drop paint, difficult to repair simply; the process is complex, after the injection molding of plastic products, it is necessary to carry out secondary spraying, and may need to bake the paint to cure; the environment is polluted, and the paint solvent is easy to volatilize , Most of them are harmful to health; the defect rate is high, because the paint leather is difficult to remove, and the products are difficult to recycle and reuse. As consumers become increasingly aware of environmental protection ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08L23/12C08L67/02C08L23/08C08L51/06C08L23/30C08K13/06C08K9/06C08K9/04C08K5/132C08K5/3475C08K5/134C08K5/526C08J3/22
CPCC08L23/14C08J3/226C08L2205/035C08J2323/14C08J2423/12C08L2207/14C08L2205/025C08L2205/08C08L23/12C08L67/02C08L23/0815C08L51/06C08L23/30C08K13/06C08K9/06C08K9/08C08K5/132C08K5/3475C08K5/1345C08K5/526
Inventor 潘志军陈腾渊陈洁钦黄雄关付济良
Owner FOSHAN KAIYUE GRAND SKY PLASTIC TECH CO LTD
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