Efficient compatilizer for polyolefin-based wood-plastic composite

A wood-plastic composite material and polyolefin-based technology, which is applied in the field of high-efficiency compatibilizers for polyolefin-based wood-plastic composite materials, can solve problems such as increased costs, uneven melting, and insufficient heating, so as to prolong service life and improve compatibility. Capacitive, easy to replace the effect

Inactive Publication Date: 2019-10-29
JIANGSU HENGFENG CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, since waste plant fibers such as wood powder have strong water absorption and strong polarity, and polyolefins such as polyethylene and polypropylene are non-polar polymers, therefore, in the production process of polyolefin-based wood-plastic composite materials It is necessary to add a compatibilizer to improve the interfacial affinity between wood flour and polyolefin-based base materials, and the existing compatibilizers in daily life are not effective in improving the compatibility and hydrophobicity of waste plant fibers

Method used

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  • Efficient compatilizer for polyolefin-based wood-plastic composite
  • Efficient compatilizer for polyolefin-based wood-plastic composite
  • Efficient compatilizer for polyolefin-based wood-plastic composite

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Experimental program
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Effect test

Embodiment 1

[0041] see Figure 1-2 , a high-efficiency compatibilizer for polyolefin-based wood-plastic composites, including the following components in parts by mass: 100 parts of EAA, 5 parts of 2-acrylic acid-2-hydroxyl-3-phenoxy Propyl ester, 3 parts of cetyl methacrylate, 0.5 part of DCP, 0.6 part of tetraisopropyl titanate.

Embodiment 2

[0043] see Figure 1-2 , a high-efficiency compatibilizer for polyolefin-based wood-plastic composites, including the following components in parts by mass: 100 parts of EAA, 6 parts of 2-acrylic acid-2-hydroxyl-3-phenoxy Propyl ester, 4 parts of cetyl methacrylate, 0.3 part of DCP, 0.5 part of tetraisopropyl titanate.

Embodiment 3

[0045] see Figure 1-2 , a high-efficiency compatibilizer for polyolefin-based wood-plastic composites, including the following components in parts by mass: 100 parts of EAA, 5 parts of 2-acrylic acid-2-hydroxyl-3-phenoxy Propyl ester, 5 parts of cetyl methacrylate, 0.4 parts of DCP, 0.7 parts of tetraisopropyl titanate.

[0046] The preparation method of the high-efficiency compatibilizer is to first extrude the extruder with a twin-screw with a length-to-diameter ratio of L / D=48, the extruder includes a first feed port and a second feed port, and then EAA Add the first feeding port of the twin-screw extruder that moves with 50 / min speed with the feeding speed of 65kg / h, then by formula ratio, 2-acrylic acid-2-hydroxyl-3-phenoxypropyl ester methyl , hexadecyl acrylate, DCP and tetraisopropyl titanate are mixed, under the pressure of 0.8-1.2Mpa, add to the second feeding port of the extruder at a feeding rate of 2.8kg / h, and finally After the grafting reaction of EAA is comp...

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Abstract

The invention discloses an efficient compatilizer for a polyolefin-based wood-plastic composite, and belongs to the field of efficient compatilizers. According to the efficient compatilizer for the polyolefin-based wood-plastic composite, in the EAA extruding process, a hydroxyl functional monomer, namely 2-propenoic acid-2-hydroxyl-3-phenoxypropyl ester, and another hydrophobic monomer, namely hexadecyl methacrylate, with the synergistic effect are added and subjected to a grafting reaction on EAA molecular chains under the effect of DCP, and thus an EAA graft polymer is formed. The preparedEAA graft polymer serves as the compatilizer for the polyolefin-based wood-plastic composite, thus compatibility and hydrophobic performance of waste plant fibers such as wood flour in polyolefin canbe greatly improved, an outer sheath with a display layer is arranged at the outer end of a screw rod, thus abrasion information is given to workers in time, thus workers replace the outer sheath conveniently, and the screw rod is protected against being prone to breaking.

Description

technical field [0001] The invention relates to the field of high-efficiency compatibilizers, in particular to a high-efficiency compatibilizer for polyolefin-based wood-plastic composite materials. Background technique [0002] Olefin-based wood-plastic composite material is a new type of green and environmentally friendly material. It is a new wood material made of polyethylene, polypropylene, etc. and more than 50% of waste plant fibers such as wood powder, rice husk, and straw. [0003] However, since waste plant fibers such as wood powder have strong water absorption and strong polarity, and polyolefins such as polyethylene and polypropylene are non-polar polymers, therefore, in the production process of polyolefin-based wood-plastic composite materials It is necessary to add a compatibilizer to improve the interfacial affinity between wood flour and polyolefin-based base materials, and the existing compatibilizers in daily life are not effective in improving the compat...

Claims

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Application Information

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IPC IPC(8): C08F255/02C08F220/18C08F220/30C08L23/02C08L97/02C08L51/06B29C48/25B29C48/285
CPCB29C48/25B29C48/297C08F255/02C08L97/02C08L2205/08C08L23/02C08L51/06
Inventor 储强周亮张建康丁金兰
Owner JIANGSU HENGFENG CABLE
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