CN102344600A

CN102344600A - Wood-plastic composite floor

Info

Publication number: CN102344600A
Application number: CN2010102439763A
Authority: CN
Inventors: 陈健; 张建光; 杨文乾; 徐建辉
Original assignee: Suzhou Futong Plastic & Electric Industry Co Ltd
Current assignee: Suzhou Futong Plastic & Electric Industry Co Ltd
Priority date: 2010-08-03
Filing date: 2010-08-03
Publication date: 2012-02-08

Abstract

The invention relates to a wood-plastic composite floor. A preparation method of the wood-plastic composite floor comprises the following steps of taking wood materials according to proportions, mixing well, drying the wood mixture at a temperature of 80 to 120 DEG C until water content of the wood mixture is below 2.5%, crushing the dried wood mixture by a crusher until particle sizes of the dried wood mixture are in a range of 50 to 90 meshes, removing impurities in thermoplastic materials, carrying out mixing and fusion of the thermoplastic materials without impurities, adding the wood mixture powder, a surface treatment agent and an adsorbent into the thermoplastic materials obtained by the previous step, mixing fully, and carrying out plastic preparation processes such as sheet drawing, lamination and the like to obtain a finished wood-plastic composite floor. The wood materials comprise wood granules and at least two of rice husks, carapaces and straws, wherein a weight part ratio of the wood granules to the at least two of rice husks, carapaces and straws is (1 to 2): (0.5 to 1): (0.5 to 1). The wood materials composed of multiple materials are adopted by the preparation method of the wood-plastic composite floor so that long and short fiber defects are overcome. Chitin added in the wood-plastic composite floor can absorb moisture of air to change into sticky paste so that the coherence of materials is improved. The preparation method of the wood-plastic composite floor reduces use amounts of auxiliary agents. The wood-plastic composite floor prepared by the preparation method has similar performances with a wood-plastic material prepared from a single wood material, is environmentally friendly and has a low cost.

Description

Wood-plastic composite floor

Technical field

The present invention relates to a kind of New Building Materials, relate to a kind of wood-plastic composite floor specifically.

Background technology

Wood plastic composite is a kind of novel material; The shell that is waste and old wood that processing treatment is crossed, sawdust agricultural crop straw, nut is according to certain ratio; Mix through high temperature high pressure process with thermoplastic material and to process; Has acid and alkali-resistance; Advantages such as imputrescibility; But xylon is made up of Mierocrystalline cellulose, hemicellulose, xylogen etc.; Contain a large amount of polarity hydroxyls and phenolic hydroxyl group functional group; Therefore show stronger polarity and wetting ability; And polyolefin resin is typical non-polar resin, has hydrophobicity.Because of polarity differs bigger; Thereby cause hydrophilic polarity wood surface and hydrophobic non-polar resin interface compatibility very poor; With wood powder unprocessed directly and the compound matrix material each item mechanical property that obtains of polyolefin resin not ideal enough; So the emphasis to research concentrates on the consistency how to improve both at present, the method that adopts is to adopt the coupling agent treatment wood powder and in compound system, add solubilizing agent usually.But existing Wood-plastic material generally all is to mix with single thermoplastic materials with single wood materials, and needs to add a large amount of auxiliary agents.

Summary of the invention

Technical problem to be solved by this invention provides a kind of wood-plastic composite floor, and multiple wood materials mixes, and reduce the usage quantity of auxiliary agent, and performance of products can not reduce.

For solving the problems of the technologies described above, the present invention realizes like this

A kind of wood-plastic composite floor, component constitutes according to following weight part: wood materials: thermoplastic materials=5-50: 50-95; Preferred range is 10-30: 70-90.

Described wood materials be wood grain with rice husk, crust, stalk at least two kinds of mixtures of material, and two kinds weight part of wood grain and other is 1-2: 0.5-1: 0.5-1; Described stalk is maize straw, soybean stalk etc.

Described thermoplastic materials is Vilaterm, polypropylene, polyvinyl chloride or its multipolymer;

The consumption of described surface treatment agent is to add the 1-5 weight part in per 100 weight part wood materials and the thermoplastic materials mixture, and kind is to be selected from any of silane coupling agent, titanate coupling agent;

The consumption of described sorbent material is to add 5-10 part weight part in per 100 weight part wood materials and the thermoplastic materials mixture, is any of ethylene-vinyl acetate copolymer (EVA), maleic anhydride modified polypropylene (MA-PP).

The present invention has following positive effect:

Simple wood powder tends to reunite in blend, and the Wood-plastic material of preparation has tiny crackle after outdoor application for some time, can influence its life-span after airborne moisture content gets into.The present invention adopts non-single wood materials, and can form the fiber of multiple different lengths like this, cooperatively interacts; Remedy mutual deficiency; And added chitin, become the heavy-gravity pasty state after absorbing airborne moisture, helped improving the adaptation between each material.Reduced the usage quantity of auxiliary agent, and performance is similar with the Wood-plastic material that single use wood materials obtains, therefore more environmental protection has reduced cost comparatively speaking, is worthy to be popularized.

Wood-plastic composite floor has improved 60%, 47%, 156% respectively, and has had excellent water tolerance than pure poly high-flexural strength, tensile strength, bending resistance Young's modulus.Table 1 is the present invention's Wood-plastic material for preparing and comparison of using the Wood-plastic material that obtains behind the single wood materials.

The Wood-plastic material of table 1 the present invention preparation and the comparison of using the Wood-plastic material that obtains behind the single wood materials

Description of drawings

Fig. 1 is a process schematic representation of the present invention.

Embodiment

Below in conjunction with embodiment the present invention is done further detailed description.

Embodiment 1

A kind of wood-plastic composite floor is characterized in that component constitutes according to following weight part:

Wood grain 10kg

Rice husk 5kg

Crust 5kg

Vilaterm 80kg

Preparation technology is following:

With reference to shown in Figure 1, will get wood materials in proportion, mix, 80 ℃ dry to water ratio below 2.5%, pulverizer is pulverized and is made granularity at 50 orders; Thermoplastic materials is rejected mixing fusion behind the impurity, add the wood materials powder, add silane coupling agent 1kg, ethylene-vinyl acetate copolymer 5kg, thorough mixing is after obtain the floor board of finished product after the operation of plastics such as pulling-on piece, lamination preparation.

Embodiment 2-5

Embodiment 2 to embodiment 5 (see go up table) except the consumption difference of each component, other all be identical, therefore do not give unnecessary details.Above-mentioned embodiment does not limit technical scheme of the present invention in any form, and the technical scheme that mode obtained that every employing is equal to replacement or equivalent transformation all drops on protection scope of the present invention.

Claims

1. wood-plastic composite floor comprises following component: wood materials, thermoplastic material, surface treatment agent, sorbent material, it is characterized in that described wood materials be the wood grain with rice husk, crust, stalk at least two kinds of mixtures of material.

2. wood-plastic composite floor according to claim 1 is characterized in that: the weight part ratio of said wood materials and thermoplastic materials is 5-50: 50-95; The wood grain is 1-2 with the weight part ratio of other two kinds of materials in the described wood materials: 0.5-1: 0.5-1; The consumption of surface treatment agent is to add 1-5 weight part surface treatment agent in per 100 weight part wood materials and the thermoplastic materials mixture; The consumption of described sorbent material is the sorbent material that adds 5-10 part weight part in per 100 weight part wood materials and the thermoplastic materials mixture.

3. described wood-plastic composite floor according to claim 1 is characterized in that said stalk is maize straw, soybean stalk; Described thermoplastic materials is Vilaterm, polypropylene, polyvinyl chloride or its multipolymer; Described surface treatment agent is selected from any of silane coupling agent, titanate coupling agent; Described sorbent material is any of ethylene-vinyl acetate copolymer (EVA), maleic anhydride modified polypropylene (MA-PP).

4. wood-plastic composite floor according to claim 1, the weight part ratio that it is characterized in that said wood materials and thermoplastic materials is 10-30: 70-90.