A kind of wood flour composite foam material and preparation method thereof

A compound foaming and wood powder technology, applied in the field of polymer material preparation, can solve the problems of natural plant fiber inhomogeneous anisotropic materials, complex interface characteristics, poor compatibility, etc., achieve scientific and reasonable preparation methods, and improve product addition. good value and resilience

Active Publication Date: 2015-10-14
福建橙橘生物材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, natural plant fiber is an inhomogeneous anisotropic material with complex interfacial properties
Its main components, such as cellulose, hemicellulose and lignin, contain a large number of polar hydroxyl and phenolic hydroxyl functional groups, making its surface exhibit strong chemical polarity, resulting in poor interfacial compatibility between natural plant fibers and plastic substrates. Microscopically, it is a heterogeneous system, the two phases have a very clear interface, and the adhesion is poor

Method used

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  • A kind of wood flour composite foam material and preparation method thereof
  • A kind of wood flour composite foam material and preparation method thereof
  • A kind of wood flour composite foam material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1~3

[0022] According to the composition of raw materials in Table 1, each raw material is selected according to the composition of raw materials, and the wood powder is preheated with glyoxal at 80-150 ° C to remove a large amount of water, and then mixed with plasticizer and surface treatment The agent was added to a high-speed mixer and kneaded at room temperature for 20 minutes to obtain plasticized wood powder. The plasticized wood powder and all other raw materials were added to an internal mixer and mixed at 100°C for 15 minutes to obtain a pre-plasticized material. Enter into the open mill, knead evenly at 80°C, and plasticize completely to obtain plasticized materials, and finally add extruder to granulate at 120°C, and the obtained pellets are air-cooled to obtain the wood powder composite foaming material .

[0023] Table 1 Blending formula of 120 mesh wood flour composite foaming material (%)

[0024]

[0025] Among them, the elastomer is POE, the inorganic powder i...

Embodiment 4~6

[0027] According to the composition of the raw materials in Table 2, each raw material was taken, and the processing steps and process parameters were the same as those in Example 1 to obtain a wood flour composite foaming material.

[0028] Table 2 Blending formula of 200 mesh poplar wood flour composite foaming material (%)

[0029]

[0030] Among them, the elastomer is POE, the inorganic powder is talcum powder and kaolin, the ratio of talc powder and kaolin is 5:1, the desiccant is glyoxal, the plasticizer is glycerin and absolute ethanol, the ratio of glycerin and absolute ethanol The cross-linking agent is dicumyl peroxide, the blowing agent is azodicarbonamide and sodium bicarbonate, the ratio of azodicarbonamide and sodium bicarbonate is 3.5:1.5, and the surface treatment agent is Silane coupling agent, solubilizer is epoxy resin and ethylene acrylate. The ratio of epoxy resin to ethylene acrylate is 1:3, other additives are zinc oxide and zinc stearate, and the ra...

Embodiment 7~9

[0032] According to the composition of raw materials in Table 3, each raw material was taken, and the processing steps and process parameters were the same as those in Example 1 to obtain a wood flour composite foaming material.

[0033] Table 3 Blending formula of 260 mesh wood flour composite foaming material (%)

[0034]

[0035] Among them, the elastomer is POE, the inorganic powder is talcum powder and kaolin, the ratio of talc powder and kaolin is 5:1, the desiccant is glyoxal, the plasticizer is glycerin and absolute ethanol, the ratio of glycerin and absolute ethanol The cross-linking agent is dicumyl peroxide, the blowing agent is azodicarbonamide and sodium bicarbonate, the ratio of azodicarbonamide and sodium bicarbonate is 3.5:1.5, and the surface treatment agent is Silane coupling agent, solubilizer is epoxy resin and ethylene acrylate. The ratio of epoxy resin to ethylene acrylate is 1:3, other additives are zinc oxide and zinc stearate, and the ratio of zinc...

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Abstract

The invention discloses a wood powder composite foam material and a preparation method thereof. The wood powder composite material consists of the following components in percent by mass: 1-50% of a wood powder, 10-60% of EVA, 0-50% of HDPE / LDPE, 1-50% of an elastomer, 0-50% of an inorganic powder, 0.5-12% of a drying agent, 0.1-15% of a plasticizer, 0.3-2% of a cross-linking agent, 2-11% of a composite foaming agent, 0-3% of a surface conditioning agent, 0-5% of a compatibilizer, and 0-5% of other auxiliary agents, with a sum of mass percents of each component being 100%. The prepared foam material is low in density, good in elasticity, resistant in deflection, not easy to compressively deform, good in damping performance, degradable and environment friendly. The preparation method is scientific and reasonable, simple in technology and high in operationality. According the foam material and the preparation method, the degradability of the conventional EVA foam material is substantially improved, also the functionalization of the EVA foam material is realized, product added value is improved, and the foam material of the invention has wide market prospect and substantial social economic benefit.

Description

technical field [0001] The invention belongs to the technical field of polymer material preparation, and in particular relates to a wood flour composite foaming material and a preparation method thereof. Background technique [0002] At present, there are some difficulties in the development of the plastics industry: first, with the rise of oil prices, the cost of raw materials for production continues to increase; second, white plastics are difficult to degrade in nature, which has caused huge pressure on the environment; third, due to plastic production technology Popularity, fierce competition among enterprises, and weaker profits. Therefore, a large number of researchers are committed to the research of environmentally friendly materials. Plastic recycled or new materials filled with wood flour or plant fibers are particularly practical for wood-plastic products that can be used to replace wood products in some occasions by extruding, pressing or injection molding with ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/08C08L97/02C08L23/06C08L53/02C08K13/02C08J9/10C08J9/08
Inventor 郑玉婴林锦贤周谦
Owner 福建橙橘生物材料有限公司
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