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Precipitation-resistant high-efficiency polypropylene weather-proof master batch

A weather-resistant masterbatch, polypropylene plastic technology, applied in the field of polymer materials, can solve the problems of unspecified mixing uniformity of additives, no mention of stabilizer or composition compatibility, etc., and achieve excellent light stability performance, The effect of improved storage and transportation performance and high hardness

Active Publication Date: 2016-01-06
安徽新秀化学股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The masterbatches or stabilized materials mentioned in the above patents have good light-stabilizing application effects, but none of them mentioned the compatibility of stabilizers or compositions in polymers, that is, in masterbatches or stabilized materials The anti-separation of additives does not point out that a certain processing method or special equipment can improve the mixing uniformity of the additives involved in this patent in the substrate

Method used

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  • Precipitation-resistant high-efficiency polypropylene weather-proof master batch
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  • Precipitation-resistant high-efficiency polypropylene weather-proof master batch

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Reagents needed: Plastoxam 5583 (hindered amine light stabilizer) and Plastoxam 5586 (hindered phenol benzoate stabilizer), both from Yantai Xinxiu Chemical Products Co., Ltd., carrier resin (polypropylene) from Dongguan City Zhenyu Plastic Raw Materials Co., Ltd., formula according to the table:

[0021]

[0022] According to the above proportions, after mixing, extrude and granulate through the twin-screw extruder described in this patent to prepare the corresponding light-stable and weather-resistant masterbatch 1 for polypropylene products.

[0023] Formula according to the table:

[0024]

[0025] According to the above ratio, after mixing, extrude and granulate through the twin-screw extruder described in this patent to prepare the corresponding light-stable and weather-resistant masterbatch 2 for polypropylene products.

[0026] According to the formulations of light-stable and weather-resistant masterbatches 1 and 2, respectively, after mixing, they are e...

Embodiment 2

[0028] Required materials, unstabilized polypropylene (from Dongguan Zhenyu Plastic Raw Materials Co., Ltd.), light-stable weather-resistant masterbatch 1 in Example 1, light-stable weather-resistant masterbatch 2, light-stable weather-resistant masterbatch 3, light-stable weather-resistant masterbatch Granule 4, talcum powder (from Shandong Chuangyu Chemical Industry), pigment (from Klein Chemical Industry).

[0029] Example formulation

[0030]

[0031] At room temperature, mix the above composition with a mixer for 3 minutes, and then use an injection molding machine under the same conditions to mold it into a standard color plate with a thickness of 145mm×45mm×2mm. 2008" aging condition, aging for 3000h, and refer to the standard "DIN53236-1983" to test the color difference (ΔE) of different swatches after aging, refer to the standard test "DIN67530-1982" to test the gloss of different swatches, and calculate the gloss The retention rate, the results are shown in Table...

Embodiment 3

[0036] Weigh 50g of light-stable weather-resistant masterbatch 1, light-stable weather-resistant masterbatch 2, light-stable weather-resistant masterbatch 3, and light-stable weather-resistant masterbatch 4, put them in a 500ml beaker, and heat them in a blast drying oven at 80°C 24h, observe the phenomenon, and record the experimental results. The experimental results are shown in Table 2.

[0037] Table 2. Precipitation phenomenon of different samples

[0038]

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Abstract

The invention relates to a high-efficiency polypropylene plastic weather-proof master batch resistant to storage and transportation. The master batch comprises the components by the mass percentage: 40%-60% of carrier resin, 40%-60% of a hindered amine light stabilizer, and 0.01%-0.5% of a hindered phenol benzoate stabilizer. A processing device adopts an intermeshing co-rotating twin-screw extruder having screws with multi-section type TME structures and having an ultrasonic amplitude-change pole structure. The master batch has the advantages and effects that a way combining the formula and the equipment process is adopted, prepared high-content master batch particles have high hardness, and auxiliary agent precipitation, master batch particle breakage and adhesive caking phenomena along with the change of the temperature are not generated in a storage and transportation process; the prepared master batch has good light stability when applied in polypropylene plastic products, can be used in harsh conditions, has no harm to human bodies in the corresponding raw material storage and transportation process, a product processing and manufacturing process and a product use process, and has the advantages of good environmental hygiene, convenient use and low cost.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to the preparation of a weather-resistant masterbatch applied to polypropylene and other products. technical background [0002] Under natural conditions, under the action of high temperature and atmospheric oxygen, moisture and ultraviolet rays, polypropylene is prone to molecular chain breakage, resulting in a decrease in mechanical strength, color change or fading of the product, and even powdering and cracking of the product. Phenomenon. At present, the most important way to improve the light stability of polypropylene products is to add light stabilizers to inhibit the occurrence of molecular chain breaks and delay the performance degradation of polypropylene products. [0003] The masterbatch type preparation has the advantages of convenient operation, safety and sanitation for the production of polypropylene products, but usually the light stabilization effect of t...

Claims

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Application Information

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IPC IPC(8): C08K5/3435C08K5/134C08L23/12C08J3/22
CPCC08J3/226C08J2323/12C08J2423/12C08K5/1345C08K5/3435C08L23/12
Inventor 蔡智奇宫青海王轲
Owner 安徽新秀化学股份有限公司