Imitation natural wood grain wood-plastic section and preparation method thereof

A wood-plastic profile, imitating natural technology, applied in the field of new polymer materials, can solve the problems of product performance impact, product expansion, time-consuming and labor-intensive, and achieve the effect of retaining the protective effect

Inactive Publication Date: 2014-11-19
HUANGSHAN HUASU NEW MATERIAL SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This processing method is not only time-consuming and labor-intensive, but also has a great impact on the performance of the product
The antioxidants and antifungal agents added in the formula belong to small molecule additives, and most of them gradually migrate to the surface layer during the production process to protect the product. After polishing, the anti-aging and anti-mildew effect of the product is greatly reduced; The cortex is a hydrophobic layer, and the water absorption and hygroscopicity of the product will be enhanced after polishing, which will easily cause the product to swell and crack
In addition, this treatment method cannot be applied to non-planar wood-plastic profiles, and the scope of use is greatly limited

Method used

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  • Imitation natural wood grain wood-plastic section and preparation method thereof
  • Imitation natural wood grain wood-plastic section and preparation method thereof
  • Imitation natural wood grain wood-plastic section and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A wood-plastic profile imitating natural wood grain, including the following raw materials in parts by mass:

[0037]

[0038]

[0039] A preparation method for imitating natural wood-grain wood-plastic profile comprises the following steps:

[0040] a) Weigh the following raw materials according to the wood-plastic composite base material formula:

[0041]

[0042] Add the above-mentioned raw materials into a high-speed mixer, mix at room temperature for 30 minutes, and then discharge them into the hopper of a parallel twin-screw granulator, then add them into the granulator from the feeding system to heat and plasticize, and the obtained uniformly plasticized material is crushed after air-cooling. For base material of wood-plastic composite material, the plasticizing section is in Zone 2 to Zone 7; among them, the heating temperature is:

[0043] a district

Second District

Third District

Four districts

five districts

District...

Embodiment 2

[0055] A wood-plastic profile imitating natural wood grain, including the following raw materials in parts by mass:

[0056] a) Weigh raw materials according to the following parts by mass:

[0057]

[0058]

[0059] A preparation method for imitating natural wood-grain wood-plastic profile comprises the following steps:

[0060] a) Weigh the following raw materials according to the wood-plastic composite base material formula:

[0061]

[0062] Put the above-mentioned raw materials into the high-speed mixer, mix them coldly for 20 minutes, and then discharge them into the hopper of the parallel twin-screw granulator, and put them into the granulator from the feeding system to heat and plasticize, but no mold is used; Crushing after cooling to obtain base material of wood-plastic composite material;

[0063] Wherein, heating temperature is:

[0064] a district

Second District

Third District

Four districts

five districts

District six...

Embodiment 3

[0076] A wood-plastic profile imitating natural wood grain, including the following raw materials in parts by mass:

[0077]

[0078]

[0079] A preparation method for imitating natural wood-grain wood-plastic profiles, comprising the following steps:

[0080] a) Weigh raw materials according to the following parts by mass:

[0081]

[0082] Add the above-mentioned raw materials into the high-speed mixer, mix them cold for 40 minutes, and then discharge them into the hopper of the parallel twin-screw granulator, and put them into the granulator from the feeding system to heat and plasticize, but no mold is used; Crushing after cooling to obtain base material of wood-plastic composite material;

[0083] Wherein, heating temperature is:

[0084] a district

Second District

Third District

Four districts

five districts

District six

District Seven

eight districts

District 9

100℃

140℃

175℃

175℃

175℃

17...

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PUM

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Abstract

The invention discloses an imitation natural wood grain wood-plastic section and a preparation method thereof. The imitation natural wood grain wood-plastic section comprises the following raw materials in parts by weight: 90-110 parts of a wood-plastic composite base material, 0.5-1 part of wood grain color master batch, 3-3.5 parts of a lubricant, 0.1-0.3 part of a smoothing agent and 0.1-0.3 part of vinylidene fluoride-hexafluoropropylene copolymer. Compared with the prior art, the imitation natural wood grain wood-plastic section has the characteristics that an imitation natural wood grain surface is directly formed in an extrusion process by flowing difference generated by different resin under the control of temperature, a surface crusting layer of the prepared wood-plastic section does not need to be polished, and the protection effect of the crusting layer on a wood-plastic composite material is retained.

Description

technical field [0001] The invention belongs to the technical field of new polymer materials, and relates to a wood-plastic profile imitating natural wood grain and a preparation method thereof. Background technique [0002] With the increasing sense of social responsibility in countries around the world, wood-plastic composite materials have been rapidly promoted and developed because of their environmental protection and recyclability. As an outdoor paving material, wood-plastic composite materials have excellent waterproof and mildew-proof performance, and have strong competitiveness in the market. [0003] However, most of the HDPE wood-plastic composite materials on the market are of a single color throughout the body, and the appearance effect is poor. In order to show a strong wood feeling, most of them use wire brush or emery to polish the surface, and then heat embossing with metal rollers to achieve the surface wood grain effect. This processing method is not onl...

Claims

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Application Information

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IPC IPC(8): C08L97/02C08L23/06C08L51/06C08L27/16C08L23/12C08K3/34C08K5/132C08J3/22
Inventor 洪海洲叶强姚俊汪建设罗贤丹张璜铸
Owner HUANGSHAN HUASU NEW MATERIAL SCI & TECH CO LTD
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