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A high-efficiency polypropylene weather-resistant masterbatch that is resistant to precipitation

A weather-resistant masterbatch and polypropylene plastic technology, applied in the field of polymer materials, can solve the problems of unspecified mixing uniformity of additives, unmentioned stabilizers or composition compatibility, etc., to achieve excellent light stability, Improved storage and transportation performance and high hardness

Active Publication Date: 2018-03-20
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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  • A high-efficiency polypropylene weather-resistant masterbatch that is resistant to precipitation
  • A high-efficiency polypropylene weather-resistant masterbatch that is resistant to precipitation
  • A high-efficiency polypropylene weather-resistant masterbatch that is resistant to precipitation

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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 proportioning, after mixing, extrude and granulate through the twin-screw extruder described in this patent to make 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 extrud...

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 conditions, aging 3000h, and test the color difference (ΔE) of different color plates after aging according to the standard "DIN 53236-1983", test the glossiness of different color plates with reference to the standard test "DIN 67530-1982", and calculate Gloss retention, the results are shown in...

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-resistant masterbatch that is resistant to storage and transportation. The formate stabilizer is 0.01% to 0.5%, and the processing equipment adopts an intermeshing co-rotating twin-screw extruder with a multi-stage TME structure and an ultrasonic horn structure. The advantageous effect of the present invention is that the present invention adopts the combination of formula and equipment technology, so that the prepared high-content masterbatch particles have high hardness, and the additives will not be precipitated with the change of temperature during storage and transportation, and the masterbatch particles will not be broken. , bonding and agglomeration; when the masterbatch prepared by the present invention is applied to polypropylene plastic products, it has excellent light stability, can be used under harsh conditions, and is stored and transported in the corresponding raw materials, and the product In the course of processing, manufacturing and use, it has no harmful effect on human body, has good environmental sanitation, is easy to use, and has 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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Patent Type & Authority Patents(China)
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