Polypropylene high-effect photo-diffusing master batch and preparation method thereof

A light-diffusing masterbatch and high-efficiency technology, which is applied in the field of polypropylene high-efficiency light-diffusing masterbatch and its preparation, can solve the problems of PP material performance degradation, low mechanical properties of polypropylene, uneven light transmission, etc., to prevent oxidation , Improve the light transmittance, the effect of uniform light transmission distribution

Inactive Publication Date: 2016-03-23
CHANGZHOU HONGMEI PLASTIC MASTERBATCH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this modified polypropylene material still has the problem of low mechanical properties of polypropylene, and the light transmission performance of the material is weak and uneven, so it can only be used in the production of LED lamps in the field of household lighting. Color LED screens with high light transmission requirements cannot meet their light transmission requirements; at the same time, the above-mentioned polypropylene materials still need to use high-temperature extrusion and granulation processes in the preparation process. The degradation of material properties caused by thermal degradation at high temperature, on the other hand, the repeated granulation of PP materials will also increase the cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A kind of polypropylene high-efficiency light diffusion masterbatch, the raw material is weighed according to the following mass fraction:

[0028] Homopolypropylene 10: melt flow rate is 2g / 10min;

[0029] Light diffusing agent: polyorganosiloxane crosslinked microbeads 5, crosslinked (meth)acrylic polymer microbeads 5;

[0030] Transparency modifier: sorbitol derivative 1;

[0031] Dispersant: polyethylene wax 2, ester wax 2;

[0032] Lubricant: Erucamide 1;

[0033] Antioxidant 0.1.

[0034] Put the above components into a high-speed mixer, mix at 1000r / min, 110°C for 2~5min at a high speed, then extrude and knead through a twin-screw extruder at 100°C, 270r / min, cool the strands, and then Cutting, drying and sieving to get the finished product.

Embodiment 2

[0036] A kind of polypropylene high-efficiency light diffusion masterbatch, the raw material is weighed according to the following mass fraction:

[0037] Homopolypropylene 40: melt flow rate is 5g / 10min;

[0038] Light diffusing agent: polystyrene cross-linked microbeads 10, insulating glass microbeads 20;

[0039] Transparency modifier: rosin derivatives 3;

[0040] Dispersant: polyethylene wax 2, ester wax 2;

[0041] Lubricants: Polypropylene Wax 2; Zinc Stearate 2;

[0042] Antioxidant 0.5.

[0043] Put the above components into a high-speed mixer, mix at 800r / min, 115°C for 2~5min at a high speed, then extrude and knead through a twin-screw extruder at 115°C, 280r / min, cool the strands, and then Cutting, drying and sieving to get the finished product.

Embodiment 3

[0045] A kind of polypropylene high-efficiency light diffusion masterbatch, the raw material is weighed according to the following mass fraction:

[0046] Homopolypropylene 20: melt flow rate is 3g / 10min;

[0047] Light diffusing agent: cross-linked (meth)acrylic polymer microbeads 20, subnanometer barium sulfate microspheres 20;

[0048] Transparency modifier: phosphate derivatives 1, rosin derivatives 2;

[0049] Dispersant: EVA wax 2, polypropylene 4;

[0050] Lubricant: Erucamide 3;

[0051] Antioxidant 0.3.

[0052] Put the above components into a high-speed mixer, mix at a high speed of 1200r / min at 110°C for 2~5min, then extrude and knead through a twin-screw extruder at a speed of 110°C at 270r / min, cool the strands, and then Cutting, drying and sieving to get the finished product.

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Abstract

The invention provides a polypropylene high-effect photo-diffusing master batch and a preparation method thereof. The polypropylene high-effect photo-diffusing master batch includes the following components, by mass: 10-40 parts of homo-polypropylene, 10-40 parts of a photo-diffusing agent, 1-3 parts of a transparent modifier, 2-8 parts of a dispersing agent and 1-4 parts of a lubricant, and if necessary, 0.1-0.5 parts of an anti-oxidizing agent. The preparation method comprises the following steps: weighing the required raw materials according to mass part, fully stirring and mixing the raw materials, discharging the mixed material and cooling the mixed material, fully curing the mixed material, and crushing and sieving the mixed material to prepare the master batch. A propylene material product with addition of the polypropylene high-effect photo-diffusing master batch is high in light transmittance, is excellent in photo-diffusion, is low in cost, is excellent in mechanical performance, is uniform in light-transmitting distribution, and can be widely applied in high-precision LED components which require high light transmittance and high light-transmitting uniformity.

Description

technical field [0001] The invention relates to a polypropylene material and a preparation method thereof, in particular to a polypropylene high-efficiency light diffusion masterbatch and a preparation method thereof. Background technique [0002] At present, plastic light diffusing materials on the market are generally based on acrylic and polycarbonate modified materials, which have outstanding optical performance advantages, but due to the large specificity and high cost of the material, it is relatively uneconomical to use. Polypropylene material has the advantages of small specific gravity and low price. Through synchronous modification of light transmission and light diffusion properties, it becomes a cost-effective light diffusion material, especially suitable for indoors with LED as light source. Lamps, advertising light boxes, billboards, light source covers and other photoelectric display fields. [0003] Chinese invention patent CN201210519772 discloses a light-d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L83/04C08L33/00C08L23/06C08L91/06C08L25/06C08L93/04C08L23/08C08K5/053C08K5/20C08K7/28C08K5/098C08K13/02C08K3/30C08K5/521B29B9/06
CPCC08L23/12B29B9/06C08L33/00C08L2203/20C08L2205/025C08L2205/03C08L2205/035C08L83/04C08L23/06C08L91/06C08K5/053C08K5/20C08L25/06C08L93/04C08K7/28C08K5/098C08L23/0853C08K13/02C08K2003/3045C08K5/521
Inventor 楚强姚宇平
Owner CHANGZHOU HONGMEI PLASTIC MASTERBATCH
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