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Ecological environment-friendly wood-plastic composite panel for advertisement board and preparation method of panel

An environmentally friendly wood-plastic composite material technology, applied in chemical instruments and methods, synthetic resin layered products, layered products, etc., can solve problems such as poor product stability, uneven quality levels, and lack of aesthetics. Achieve the effect of easy demoulding, smooth surface and fluffy structure

Inactive Publication Date: 2014-12-10
民勤县华安再生资源开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are still many defects, such as uneven quality due to different manufacturers; some products may be deformed due to poor stability due to high temperature; non-natural materials, not good enough texture, lack of aesthetics, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] An ecological environment-friendly wood-plastic composite material board for advertising boards, the preparation method of which is:

[0031] ⑴Sunflower straw pretreatment

[0032] In an ultrasonic water bath, treat sunflower stalks in a water bath at 50°C for 0.5h, wherein the water bath liquid is 30% hydrogen peroxide aqueous solution, and the bath ratio is 15:1. After taking out the cotton stalks, wash and dry them with a water content of 12%, crush them, and pass through 100 Mesh sieve to get sunflower stalk powder, set aside;

[0033] ⑵ mixing

[0034] ①Preparation of hard layer premix

[0035] Take by weight 20kg of pretreated sunflower stalk powder, 55kg of SG-7 type PVC, 8kg of recycled profile waste, 15kg of 800-mesh active light calcium, 4kg of wood powder, 2.8kg of composite stabilizer, 0.1kg of AC foaming agent, foaming Add 4kg of conditioner to the high-speed mixer in turn, start the stirring speed at 350r / min, mix at 90°C for 3min, adjust to 1200r / min, ...

Embodiment 2

[0046] An ecological environment-friendly wood-plastic composite material board for advertising boards, the preparation method of which is:

[0047] ⑴Sunflower straw pretreatment

[0048] In an ultrasonic water bath, treat sunflower stalks in a water bath at 55°C for 45 minutes. The water bath liquid is 30% aqueous hydrogen peroxide solution with a bath ratio of 15:1. After taking out the cotton stalks, wash and dry them with a water content of 10%, crush them, and pass through 100 mesh. Sieve to get sunflower stalk powder, set aside;

[0049] ⑵ mixing

[0050] ①Preparation of hard layer premix

[0051] Weigh 25kg of pretreated sunflower stalk powder, 50kg of SG-7 type PVC, 10kg of recycled profile waste, 20kg of 1000 mesh active light calcium, 5kg of wood flour, 3kg of composite stabilizer, 0.2kg of AC foaming agent, and foaming regulator by weight. Add 5kg of agent into the high-speed mixer in turn, start the stirring speed at 450r / min, mix at 95°C for 4min, adjust to 150...

Embodiment 3

[0062] An ecological environment-friendly wood-plastic composite material board for advertising boards, the preparation method of which is:

[0063] ⑴Sunflower straw pretreatment

[0064] In an ultrasonic water bath, treat sunflower stalks in a water bath at 55°C for 1 hour. The water bath solution is 30% hydrogen peroxide aqueous solution with a bath ratio of 15:1. After taking out the cotton stalks, wash and dry them with a water content of 11%, crush them, and pass through 100 mesh Sieve to get sunflower stalk powder, set aside;

[0065] ⑵ mixing

[0066] ①Preparation of hard layer premix

[0067] Take by weight 25kg of pretreated sunflower stalk powder, SG-7 type PVC 50kg, recycled profile waste 12kg, 1000 purpose active light calcium 25kg, wood flour 5.5kg, composite stabilizer 3.5kg, AC foaming agent 0.2kg, foam Add 6kg of foam regulator into the high-speed mixer in turn, start the stirring speed at 500r / min, mix at 100°C for 5min, adjust to 1500r / min, and mix at 100°...

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Abstract

The invention discloses an ecological environment-friendly wood-plastic composite panel for an advertisement board and a preparation method of the panel, belonging to the technical filed of manufacture of wood-plastic composite materials. The panel is of a three-layer composite structure and is composed of outer surface soft layers and a middle hard layer, wherein the hard layer is clamped between the two soft layers which are completely the same; the thickness of the hard layer is 0.5-5mm, and the thickness of each soft layer is 0.25-2.5mm. By taking recycled wastes such as sunflower straws and wood-plastic waste and PVC as basic materials, the ecological environment-friendly wood-plastic composite panel comprising a soft-surface thermoplastic elastomer as the outer surface layer and a hard support as the middle layer is produced, and is a good substitute for an existing advertisement board. The ecological environment-friendly wood-plastic composite panel is environmentally friendly and low-carbon, harmless to environment and a human body, good in water-resisting property, easy in demolding, long in service life, unlikely to deform, smooth in surface, and good in fire resistance and photostability, and also has antibacterial insect-prevention effect, and the dimension of the composite panel can be specified by customers.

Description

technical field [0001] The invention belongs to the technical field of wood-plastic material manufacturing, and in particular relates to an ecological environment-friendly wood-plastic composite material board for advertising boards and a preparation method thereof. Background technique [0002] Now, advertising has become the accelerator of my country's economic development, and it is also an important way to promote international trade, increase foreign exchange, and expand audience horizons. With the development of social science and technology, various advertising media and means emerge in an endless stream, among which PVC advertising board is an excellent advertising carrier. [0003] PVC advertising boards are generally PVC foamed boards, which have the characteristics of anti-corrosion, moisture-proof, mildew-proof, non-absorbent, drillable, sawable, planable, easy to thermoform, and heat-bending processing. flammability etc. However, there are still many defects, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/30C08L27/06C08L97/02C08L23/28C08L101/00C08K13/02C08K3/26C08K3/38C08K5/524C08J9/10B29C47/92B29C48/92
CPCY02P20/582
Inventor 杨晶刘青民曹宗仁
Owner 民勤县华安再生资源开发有限公司
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