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Ultraviolet blocking master batch of polyolefin high-transmittance film and preparation method of ultraviolet barrier master batch

A technology of UV blocking and polyolefin, which is applied in the field of UV blocking masterbatch and preparation of polyolefin high-transparency films, can solve the problems of increased haze and decreased light transmittance of the film, and achieves low cost, simple preparation process, and good mechanical properties. The effect of the performance protection effect

Pending Publication Date: 2021-10-08
宿迁联宏新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the wavelength range of visible light, inorganic nanoparticles also have a certain scattering effect. Too much addition of inorganic nanoparticles will reduce the light transmittance of the film and greatly increase the haze

Method used

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  • Ultraviolet blocking master batch of polyolefin high-transmittance film and preparation method of ultraviolet barrier master batch
  • Ultraviolet blocking master batch of polyolefin high-transmittance film and preparation method of ultraviolet barrier master batch
  • Ultraviolet blocking master batch of polyolefin high-transmittance film and preparation method of ultraviolet barrier master batch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The steps of this embodiment are as follows:

[0026] (1) The raw material formula of UV blocking masterbatch for Group 1-4 polyethylene high-transparency film is shown in Table 1.

[0027] Table 1 Group 1-4 polyethylene high-transparency film UV barrier masterbatch raw material formula (unit: parts by weight)

[0028] raw material group 1 group 2 group 3 group 4 polyethylene resin 82 77 72 67 Triazine UV Absorbers 6 9 9 12 Benzotriazole UV Absorbers 4 6 6 8 Inorganic Nanoparticles 5 5 10 10 Processing aids 3 3 3 3

[0029] The melt index of the polyethylene resin used is 10-20g / 10min, and the density is 0.9-0.93g / cm3.

[0030] The triazine ultraviolet absorber used is ultraviolet absorber UV-1164.

[0031] The benzotriazole ultraviolet absorber used is ultraviolet absorber UV-328.

[0032] The inorganic nanoparticles used are nanometer zinc oxide coated with a silane coupling agent. The particle siz...

Embodiment 2

[0040] Embodiment 2: comparative examples 1~3

[0041] The preparation method of the barrier masterbatches of Comparative Examples 1-3 is the same as that of Group 2 in Example 1, and the differences are shown in Table 3.

[0042] Table 3 Raw material formulations of barrier masterbatches in comparative examples 1 to 3 (unit: parts by weight)

[0043] raw material Comparative example 1 Comparative example 2 Comparative example 3 polyethylene resin 77 77 82 Triazine UV Absorbers 15 9 Benzotriazole UV Absorbers 15 6 Inorganic Nanoparticles 5 5 Processing aids 3 3 3

[0044] Performance test results of groups 1-4 and comparative examples 1-3

[0045] Groups 1-4 and Comparative Examples 1-3 were prepared with 80 μm thick PE films according to the addition amount of 1.5% by weight, and the film properties were tested at the initial stage and after 3000 hours of UV aging with reference to GB / T 2410-2008 and ASTM G154. ...

Embodiment 3

[0051] The steps of this embodiment are as follows:

[0052] (1) The raw material formula of the ultraviolet blocking masterbatch of group 5-8 polypropylene high-transparency film is shown in Table 6.

[0053] Table 6 Group 5-8 Polypropylene high-transparency film UV barrier masterbatch raw material formula (unit: parts by weight)

[0054] raw material Group 5 Group 6 Group 7 Group 8 polypropylene resin 82 77 72 67 Triazine UV Absorbers 6 9 9 12 Benzotriazole UV Absorbers 4 6 6 8 Inorganic Nanoparticles 5 5 10 10 Processing aids 3 3 3 3

[0055] The melt index of the polypropylene resin used is 8-15g / 10min, and the density is 0.9-0.95g / cm 3 .

[0056] The triazine ultraviolet absorber used is ultraviolet absorber UV-1577.

[0057] The benzotriazole ultraviolet absorber used is ultraviolet absorber UV-326.

[0058] The inorganic nanoparticles used are nano cerium oxide coated with stearic acid. The particle d...

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Abstract

The invention discloses an ultraviolet blocking master batch of a polyolefin high-transmittance film. The ultraviolet blocking master batch is prepared from the following raw materials in parts by weight: 65 to 82 parts of a polyolefin carrier resin, 6 to 12 parts of an ultraviolet light absorber A, 4 to 8 parts of an ultraviolet light absorber B, 5 to 10 parts of inorganic nanoparticles and 3 to 5 parts of a processing aid. According to the invention, after the ultraviolet blocking master batch is added into a resin to prepare a polyolefin high-transmittance film, the barrier rate of the obtained polyolefin film product is greater than 98%, the transparency is greater than 90%, the polyolefin film product has a wide ultraviolet barrier effect, high light transmittance and high weather resistance, and the polyolefin film product can still keep good ultraviolet barrier performance after being irradiated by ultraviolet light for 3000 h; and the ultraviolet blocking master batch prepared by the invention can be directly added into polyolefin resin for manufacturing products.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to an ultraviolet-blocking masterbatch of polyolefin high-transparency film and a preparation method thereof. Background technique [0002] Polyolefin film is widely used in the packaging industry, especially food packaging, daily necessities and industrial product packaging, due to its good airtightness, toughness, light weight, and transparency. In the plastic packaging industry, high-transparency plastic film packaging can better show the integrity of the inner product, but at the same time, the ordinary high-transparency plastic film is easy to cause damage to the inner product by ultraviolet radiation during use, shortening the life of the product. service life. Therefore, packaging films usually need to add UV absorbers or UV shielding agents to achieve the UV blocking effect of the film, so as to protect the products. [0003] Ultraviolet light absorbers can effec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/12C08L27/06C08K5/00C08K9/10C08K3/22C08K3/34C08J3/22C08J5/18
CPCC08J3/226C08J5/18C08J2423/06C08J2423/12C08J2427/06C08K5/005C08K2201/011C08K2003/2296C08K2003/2213C08K2003/2241C08K9/10C08K3/346C08K3/34
Inventor 陆涛张勇谢胜利张跃王超李凤春
Owner 宿迁联宏新材料有限公司
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