A kind of anti-algae wood-plastic composite material and preparation method thereof

A wood-plastic composite material and plastic matrix technology, which is applied in the field of algae-resistant wood-plastic composite material and its preparation, can solve problems such as algae hazards, achieve the effects of increasing roughness, good interface performance and mechanical properties, and increasing interface bonding force

A wood-plastic composite material and plastic matrix technology, which is applied in the field of algae-resistant wood-plastic composite material and its preparation, can solve problems such as algae hazards, achieve the effects of increasing roughness, good interface performance and mechanical properties, and increasing interface bonding force

CN104877272BActive Publication Date: 2017-01-25GUANGDONG INST OF MICROBIOLOGY GUANGDONG DETECTION CENT OF MICROBIOLOGY
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  • A kind of anti-algae wood-plastic composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Surface modification and grafting of lignocellulosic powder (wood flour): spray zinc pyrithione (ZPT) solution uniformly dispersed with absolute ethanol on the surface of 80 mesh wood flour, and the zinc pyrithione consumption is 1.0% of the wood flour quality , after stirring evenly, irradiating with 5kW power for 2min to obtain wood flour grafted with microwave-modified anti-algae active substances.

[0020] Preparation of anti-algae wood-plastic composite material: According to the ratio of parts by mass, weigh 100 parts of PP matrix, add 100 parts of wood powder grafted with microwave-modified anti-algae active substances into a high-speed mixer, and heat at 100°C, 700r / After stirring and mixing at high speed for 10 minutes under the condition of 10 minutes, add 15 parts of activated calcium carbonate, 2 parts of stearic acid, 2 parts of bisaminosilane coupling agent, 4 parts of light stabilizer, and 2 parts of toner, continue mixing for 10 minutes, and cool out Fe...

Embodiment 2

[0022] The surface modification grafting of lignocellulosic powder (bamboo powder): the carbendazim (MBC) solution that is uniformly dispersed with dehydrated alcohol is sprayed onto the surface of 40 order bamboo powder, and the carbendazim consumption is 1.5% of the bamboo powder quality, stirs After uniformity, microwave irradiation with 10kW power was used for 1.5min to obtain bamboo powder modified by microwave and grafted with anti-algae active substances.

[0023] Preparation of anti-algae wood-plastic composite material: According to the ratio of parts by mass, 100 parts of HDPE matrix was weighed, and 80 parts of bamboo powder grafted with microwave-modified anti-algae active substances were added to a high-speed mixer and heated at 90°C and 800r / After mixing at high speed for 10 minutes under the condition of 1 min, add 10 parts of activated calcium carbonate, 5 parts of PE wax, 4 parts of maleic anhydride grafted polypropylene, 2 parts of light stabilizer, and 2 par...

Embodiment 3

[0025] Surface modification grafting of lignocellulosic powder (flax powder): the thiabendazole (TBZ) solution uniformly dispersed with dehydrated alcohol is sprayed on the surface of 60 order flax powder, and the thiabendazole consumption is 2.0% of the flax powder quality, stirs After uniformity, it is irradiated with 15kW power for 1 min to obtain the flax powder grafted with microwave-modified anti-algae active substances.

[0026] Preparation of anti-algae wood-plastic composite material: According to the ratio of parts by mass, weigh 100 parts of HDPE matrix, add 60 parts of flax powder grafted with microwave-modified anti-algae active substances into a high-speed mixer, and heat at 110°C, 600r / After mixing at high speed for 15 minutes under the condition of 1 min, add 20 parts of activated calcium carbonate, 5 parts of PE wax, 5 parts of vinyl silane coupling agent, 3 parts of light stabilizer, and 3 parts of toner, continue mixing for 10 minutes, and then cool and disc...

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Abstract

The invention discloses an anti-algae wood-plastic composite material and a preparation method thereof. The preparation method comprises the following steps: anti-algae active substances are dispersed with anhydrous ethanol, are sprayed onto the surface of wood fiber powder, and are subjected to microwave radiation treatment after being mixed with the wood fiber powder uniformly, so as to obtain a microwave-modified anti-algae active substance-grafted wood fiber powder; the microwave-modified anti-algae active substance-grafted wood fiber powder is mixed with a plastic matrix, activated calcium carbonate, a coupling agent, a lubricant and other processing aids to obtain a mixture; the mixture is granulated and molded to obtain the anti-algae wood-plastic composite material. According to the invention, a plurality of anti-algae active substances are grafted to the surface of the wood fiber powder through microwave radiation modification, so that the wood-plastic composite material has excellent anti-algae property and the mechanical properties are improved. The anti-algae wood-plastic composite material can be applied to outdoor environments near water or in water, such as boardwalks, decking and pavilions besides sea / river / lake / river, and brackets and pillars near water or under water.

Description

technical field [0001] The invention belongs to the field of wood-plastic composite material preparation, and in particular relates to an anti-algae wood-plastic composite material and a preparation method thereof. Background technique [0002] Wood-plastic composite material is a new type of material developed in recent years. It is composed of wood fiber, thermoplastic and specific processing aids. It has the advantages of both wood and plastic. Compared with wood and plastics, wood-plastic composite materials have unique advantages, and are of great significance in environmental protection and alleviating the shortage of forest resources. At present, they are widely used in indoor and outdoor construction, garden landscape, automobile industry, packaging and transportation, warehousing and other fields. [0003] Since the growth and reproduction of algae needs to meet a series of conditions, such as suitable temperature, humidity (minimum 25%), oxygen, culture medium and ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

Patent Timeline
25 Jan 2017
Publication
CN104877272B
IPC
C08L27/06; C08L25/06; C08L23/12; C08L23/06; C08L97/02; C08K13/02; C08K3/26; C08K5/09; C08K5/378; C08K5/3447; C08K5/46; C08K5/47; C08K5/21
CPC
C08L23/06; C08L23/12; C08L25/06; C08L27/06; C08L97/02; C08L2205/03; C08L2205/035; C08L2207/062
Inventors
冯静; 施庆珊