PP anti-UV anti-aging master batch

Abstract

The invention discloses a PP (polypropylene) anti-UV (ultraviolet) anti-aging master batch which comprises the following components: an ultraviolet light absorber, an inorganic nano material, an antioxidant, a cross-functional additive with flame retardance and ultraviolet resistance and polypropylene carrier resin, and relates to the technical field of anti-aging master batches. By adding the ultraviolet light absorber, the inorganic nano-material, the antioxidant, the cross-functional additive, the carbon black and other anti-aging auxiliaries into the PP material, the anti-UV anti-aging performance and mechanical performance of the PP material are remarkably improved, by adding the ultraviolet light absorber, the prepared master batch can effectively absorb ultraviolet light and convert the ultraviolet light into heat energy, and the anti-aging performance of the PP material is improved. The anti-ultraviolet PP material has the advantages that the anti-ultraviolet property of the material is further enhanced by combining the anti-ultraviolet PP material with the inorganic nano material nano TiO2, the mechanical property of the material is also obviously enhanced by the inorganic nano material nano TiO2, and the oxidation reaction of the PP material is effectively prevented by adding the antioxidant.

Description

Technical Field

[0001] The invention relates to the technical field of anti-aging masterbatch, in particular to a PP type anti-UV anti-aging masterbatch. Background Art

[0002] With the development of society and the improvement of living standards, polypropylene (PP) materials have been widely used due to their excellent physical and chemical properties, such as light weight, corrosion resistance, high mechanical strength, and good insulation performance. However, when used outdoors for a long time, PP materials are easily affected by environmental factors such as ultraviolet radiation, oxygen, and humidity, which leads to a rapid decline in performance and the occurrence of discoloration, cracking, aging, etc. These phenomena not only reduce the service life of the material, but also affect its appearance and function, limiting its promotion in outdoor applications.

[0003] There are many modified PP materials on the market to improve their anti-UV and anti-aging properties. Common methods include adding UV absorbers, antioxidants and other additives. However, these methods have certain limitations. For example, some UV absorbers are easily decomposed in high temperature environments, resulting in reduced effects; the amount of antioxidants added needs to be precisely controlled, otherwise it may affect the mechanical properties of the material; and some additives have poor dispersibility and cannot be evenly distributed in the PP matrix, resulting in uneven material properties. In addition, with the improvement of environmental protection requirements, some traditional additives are gradually restricted due to their potential environmental and health risks.

[0004] To this end, the present invention provides a PP-based anti-UV and anti-aging masterbatch to solve the above problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a PP-based anti-UV and anti-aging masterbatch to solve the above problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical scheme: a PP-based anti-UV and anti-aging masterbatch, the masterbatch comprising the following components:

[0007] UV absorbers, inorganic nanomaterials, antioxidants, cross-functional additives with flame retardancy and UV resistance, and polypropylene carrier resins.

[0008] Preferably, the ultraviolet absorber is a benzotriazole ultraviolet absorber, and the added amount of the ultraviolet absorber is 0.1% to 1% of the total weight of the masterbatch.

[0009] Preferably, the inorganic nanomaterial is nano-TiO 2 The addition amount of the inorganic nano material is 0.1% to 0.5% of the total weight of the masterbatch.

[0010] Preferably, the antioxidant is selected from one or more of phenols, aromatic ethers and hydroxyethyl phenate, and the added amount of the antioxidant is 0.05% to 0.5% of the total weight of the masterbatch.

[0011] Preferably, the cross-functional additive comprises ammonium polyphosphate coated with polysiloxane and a carbon former having a triazine group, and the addition amount of the cross-functional additive is 0.5% to 5% of the total weight of the masterbatch.

[0012] Preferably, carbon black is also included, and the added amount of the carbon black is 0.1% to 1% of the total weight of the masterbatch.

[0013] Preferably, the masterbatch is prepared by a twin-screw granulation process.

[0014] Beneficial Effects

[0015] The present invention provides a PP-based anti-UV and anti-aging masterbatch. Compared with the prior art, it has the following beneficial effects:

[0016] The present invention significantly improves the anti-UV and anti-aging properties and mechanical properties of PP materials by adding ultraviolet absorbers, inorganic nanomaterials, antioxidants, cross-functional additives, carbon black and other anti-aging additives to PP materials. By adding ultraviolet absorbers, the masterbatch prepared by the present invention can effectively absorb ultraviolet rays and convert them into heat energy, thereby reducing the damage of ultraviolet rays to materials. 2 , further enhancing the material's UV resistance, while the inorganic nanomaterial nano-TiO 2 It also significantly enhances the mechanical properties of the material. The addition of antioxidants effectively prevents the oxidation reaction of PP materials and delays the aging of the materials. By adding cross-functional additives, the masterbatch produced by the invention not only has anti-UV properties, but also has good flame retardant properties and thermal oxidation resistance. It is suitable for a variety of application scenarios with high performance requirements. The addition of carbon black effectively absorbs ultraviolet rays, reduces the thermal conductivity coefficient of the material, and reduces heat accumulation, thereby further improving the material's antioxidant and anti-aging capabilities. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Embodiment 1:

[0019] A PP-based anti-UV and anti-aging masterbatch is prepared according to the following formula:

[0020] UV absorber: 0.5%; nano-TiO 2 : 0.3%; Antioxidant (phenol): 0.2%; Cross-functional additive: 1%; Polypropylene carrier resin: 98%.

[0021] The above components are fully mixed and granulated by a twin-screw extruder to obtain PP anti-UV and anti-aging masterbatch.

[0022] Embodiment 2:

[0023] A PP-based anti-UV and anti-aging masterbatch is prepared according to the following formula:

[0024] UV absorber: 0.3%; nano-TiO 2 : 0.4%; Antioxidant (aromatic ether): 0.3%; Cross-functional additive: 0.8%; Polypropylene carrier resin: 98.2%.

[0025] The above components are fully mixed and granulated by a twin-screw extruder to obtain PP anti-UV and anti-aging masterbatch.

[0026] Embodiment 3:

[0027] A PP-based anti-UV and anti-aging masterbatch is prepared according to the following formula:

[0028] UV absorber: 0.6%; nano-TiO 2 : 0.2%; Antioxidant (hydroxyphenyl ethyl ester): 0.1%; Cross-functional additive: 2%; Polypropylene carrier resin: 97.1%.

[0029] The above components are fully mixed and granulated by a twin-screw extruder to obtain PP anti-UV and anti-aging masterbatch.

[0030] Embodiment 4:

[0031] A PP-based anti-UV and anti-aging masterbatch is prepared according to the following formula:

[0032] UV absorber: 0.4%; nano-TiO 2 : 0.5%; Antioxidant (phenols): 0.3%; Cross-functional additives: 1.5%; Polypropylene carrier resin: 97.3%.

[0033] The above components are fully mixed and granulated by a twin-screw extruder to obtain PP anti-UV and anti-aging masterbatch.

[0034] Embodiment 5:

[0035] A PP-based anti-UV and anti-aging masterbatch is prepared according to the following formula:

[0036] UV absorber: 0.7%; nano-TiO 2 : 0.3%; Antioxidant (aromatic ether): 0.2%; Cross-functional additive: 1%; Polypropylene carrier resin: 97.8%.

[0037] The above components are fully mixed and granulated by a twin-screw extruder to obtain PP anti-UV and anti-aging masterbatch.

[0038] Embodiment 6:

[0039] A PP-based anti-UV and anti-aging masterbatch is prepared according to the following formula:

[0040] UV absorber: 0.8%; nano-TiO 2 : 0.4%; Antioxidant (phenol): 0.3%; Cross-functional additive: 2%; Carbon black: 0.5%; Polypropylene carrier resin: 96%.

[0041] The above components are fully mixed and granulated by a twin-screw extruder to obtain PP anti-UV and anti-aging masterbatch.

[0042] Embodiment 7:

[0043] A PP-based anti-UV and anti-aging masterbatch is prepared according to the following formula:

[0044] UV absorber: 0.9%; nano-TiO 2 : 0.2%; Antioxidant (aromatic ether): 0.4%; Cross-functional additive: 1.5%; Carbon black: 0.3%; Polypropylene carrier resin: 96.7%.

[0045] The above components are fully mixed and granulated by a twin-screw extruder to obtain PP anti-UV and anti-aging masterbatch.

[0046] Embodiment 8:

[0047] A PP-based anti-UV and anti-aging masterbatch is prepared according to the following formula:

[0048] UV absorber: 1%; nano-TiO 2 : 0.3%; Antioxidant (phenols): 0.5%; Cross-functional additives: 2%; Carbon black: 0.2%; Polypropylene carrier resin: 96%.

[0049] The above components are fully mixed and granulated by a twin-screw extruder to obtain PP anti-UV and anti-aging masterbatch.

[0050] Comparative Example 1:

[0051] A PP-based anti-UV and anti-aging masterbatch is prepared according to the following formula:

[0052] Ultraviolet absorber: 0.5%; Antioxidant (phenol): 0.3%; Polypropylene carrier resin: 99.2%.

[0053] The above components are fully mixed and then granulated by a twin-screw extruder. No inorganic nanomaterials and cross-functional additives are added.

[0054] Comparative Example 2:

[0055] A PP-based anti-UV and anti-aging masterbatch is prepared according to the following formula:

[0056] Nano-TiO 2 : 0.3%; Antioxidant (aromatic ether): 0.2%; Polypropylene carrier resin: 99.5%.

[0057] The above components are fully mixed and then granulated by a twin-screw extruder. No UV absorbers and cross-functional additives are added

[0058] Comparative Example 3:

[0059] A PP-based anti-UV and anti-aging masterbatch is prepared according to the following formula:

[0060] UV absorber: 0.3%; nano-TiO 2 : 0.3%; Polypropylene carrier resin: 99.4%.

[0061] The above components are fully mixed and then granulated by a twin-screw extruder. No antioxidants and cross-functional additives are added.

[0062] Comparative Example 4:

[0063] A PP-based anti-UV and anti-aging masterbatch is prepared according to the following formula:

[0064] UV absorber: 0.5%; cross-functional additive: 1%; polypropylene carrier resin: 98.5%.

[0065] The above components are fully mixed and then granulated by a twin-screw extruder. No inorganic nanomaterials and antioxidants are added.

[0066] Comparative Example 5:

[0067] A PP-based anti-UV and anti-aging masterbatch is prepared according to the following formula:

[0068] Antioxidant (phenols): 0.5%; cross-functional additive: 1%; polypropylene carrier resin: 98.5%.

[0069] The above components are fully mixed and then granulated by a twin-screw extruder. No ultraviolet absorber and inorganic nanomaterial are added.

[0070] The PP anti-UV anti-aging masterbatch prepared in the above examples and comparative examples was applied to PP materials, and aging experiments, anti-ultraviolet performance tests, and mechanical performance tests were carried out respectively. The test results are shown in Table 1:

[0071] Table 1: Test results of Examples 1-8 and Comparative Examples 1-5

[0072]

[0073] By comparing the above data, it can be seen that the PP anti-UV and anti-aging masterbatch of the present invention is significantly better than the comparative example in terms of tensile strength, bending strength, anti-ultraviolet performance and aging test retention strength. In particular, Example 8 shows the best comprehensive performance, indicating that the comprehensive formula of adding ultraviolet absorber, inorganic nanomaterial, antioxidant, cross-functional additive and carbon black can significantly improve the anti-UV and anti-aging performance and mechanical properties of PP materials.

[0074] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0075] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0076] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PP-based anti-UV and anti-aging masterbatch, characterized in that: The masterbatch comprises the following components: UV absorbers, inorganic nanomaterials, antioxidants, cross-functional additives with flame retardancy and UV resistance, and polypropylene carrier resins.

2. The PP anti-UV and anti-aging masterbatch according to claim 1, characterized in that: The ultraviolet absorber is a benzotriazole ultraviolet absorber, and the added amount of the ultraviolet absorber is 0.1% to 1% of the total weight of the masterbatch.

3. The PP anti-UV and anti-aging masterbatch according to claim 1, characterized in that: The inorganic nano material is nano TiO2, and the addition amount of the inorganic nano material is 0.1% to 0.5% of the total weight of the masterbatch.

4. The PP anti-UV and anti-aging masterbatch according to claim 1, characterized in that: The antioxidant is selected from one or more of phenols, aromatic ethers and hydroxyethyl phenate, and the added amount of the antioxidant is 0.05% to 0.5% of the total weight of the masterbatch.

5. The PP anti-UV and anti-aging masterbatch according to claim 1, characterized in that: The cross-functional additive comprises ammonium polyphosphate coated with polysiloxane and a carbon former having a triazine group, and the addition amount of the cross-functional additive is 0.5% to 5% of the total weight of the masterbatch.

6. The PP anti-UV and anti-aging masterbatch according to claim 1, characterized in that: It also includes carbon black, and the added amount of the carbon black is 0.1% to 1% of the total weight of the masterbatch.

7. The PP anti-UV and anti-aging masterbatch according to claim 1, characterized in that: The masterbatch is prepared by a twin-screw granulation process.

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