CN201712218U

CN201712218U - Wood-plastic composite plate with closed honeycomb structure

Info

Publication number: CN201712218U
Application number: CN2010202466003U
Authority: CN
Inventors: 高雁峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-07-02
Filing date: 2010-07-02
Publication date: 2011-01-19
Anticipated expiration: 2020-07-02

Abstract

A wood-plastic composite plate with a closed honeycomb structure comprises an upper panel (1), a lower panel (1) and a core material, and is characterized in that the core material comprises a core plate (2) and approximately regular hexagon-shaped blanks (3) densely distributed on two sides of the core plate (2). Firstly, extrusion molding is conducted on wood-plastic mixed material to obtain the two panels (1) and the core material; and then the plate can be obtained through bidirectional heat sealing shaping. The utility model has the advantages that the static load of the composite plate can be more than 100 T per square meter; compared with a solid sandwich plate, the composite plate saves material by 20 to 30 percent; the production of the composite plate can be fulfilled on the same production line; the processing efficiency is high; the energy consumption is reduced by more than 40 percent; the specific strength and the specific stiffness of the composite plate are high; water absorption, mildewing and deformation are avoided; the service life is long; and the wood-plastic composite plate can be widely applied in panels of industrial pallets and back plates of underground laneways.

Description

A kind of wood-plastic clad plate with closed pore honeycomb

One, technical field

The utility model relates to a kind of wood-plastic composite panel, specifically a kind of wood-plastic clad plate with closed pore honeycomb.

Two, background technology

Wood plastic composite is that recent two decades comes the very fast environment-friendly material of China's development, its excellent properties (having the texture of timber and the protection against the tide of processability and plastics, mothproof, the anti-characteristics of going mouldy) to have timber and two kinds of materials of plastics concurrently, and self zero formaldehyde, pollution-free etc. more and morely obtains the market cognition.But traditional Wood plastic composite has density of material big (1.15～1.3), the shortcoming that working (machining) efficiency is low, energy consumption is big, cost performance is lower.

Cellular structural material originates from bionics, is used for aerospace field the earliest, and it is with its specific strength, specific stiffness height, and heat insulation, sound insulation, surfacing, not yielding, excellent performance such as materials are economized and integrated cost is low not only satisfy using strength but also save materials.

Three, summary of the invention

The utility model aims to provide a kind of high-strength wood plastic composite that is suitable for commercial Application, and technical problem to be solved is not only to satisfy requirement of strength but also save materials.

The technical solution of the utility model comprises the core between upper and lower panel 1 and the two panels 1, and difference with the prior art is that described core is made up of the densely arranged polygon space 3 of central layer 2 and central layer 2 two sides.

Identical honeycomb shape when polygon space 3 is basic regular hexagon space is the closed pore honeycomb after upper and lower panel 1 sealing.

This composite plate is moulded compound by wood and is processed through extrusion molding and two-way heat seal typing.Described extrusion molding promptly is wood to be moulded compound extrude core through a pair of incorgruous awl double screw extruder with honeycomb moulding roll mould respectively, incorgruous awl double screw extruder with a pair of even surface roller die is extruded upper and lower panel, and exceptionally straight by the pulling equipment tension; It is compound after the heat seal of press polish heat-sealing machine is shaped into sheet material that the upper and lower panel of extruding is closed core.

Described wood mould compound material by 20～70% (mass percent, down with) wood powders or powder of straw, 20～60% vistanexes, 5～15% talcum powder and 1～5% auxiliary agent mix under 100～120 ℃ after double-screw extruding pelletizing machine extruding pelletization obtains mixing pellet.Described auxiliary agent comprises antioxidant, UV resistant agent, combustion adjuvant etc., adds according to the purposes needs.

This composite plate is than the composite plate of other solid sandwiches, specific strength, specific stiffness height, and every square meter static load reaches more than the 100T, and materials can save 20～30%.Can be widely used in the backboard that process industry tray surface support panel and subsurface excavation tunnel are used.Light, the handled easily of this composite board relative weight, and do not absorb water, do not go mouldy, indeformable, long service life.This composite plate is finished on same production line, the working (machining) efficiency height, and energy efficient is more than 40%.

Four, description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is the structural representation of honeycomb core.

Five, the specific embodiment

Be example with the honeycomb core now, non-limiting examples is described below.

(1) is mixed: percentage meter by weight, 45% wood powder, 40% polyolefin pellets (or sheet material) are put into the high-temperature stirring mixer to be mixed, progressively be warming up to 85～95 ℃ and add 5% auxiliary agent, 10% talcum powder, being warming up to 100 ℃～120 ℃ high-speed stirred mixed 15～40 minutes, be discharged to then to stir in the cold mixer and be cooled to below 40 ℃, form compound with bottom discharge;

(2) granulation: this compound is joined the parallel double-screw granulating extruder carry out extruding pelletization;

(3) extrusion molding: will this compound granulation material join a pair of two groups of incorgruous awl double screw extruders that have the incorgruous awl double screw extruder of honeycomb moulding roll mould and have an a pair of even surface roller die respectively and extrude, form honeycomb core and above and below laminate respectively, and exceptionally straight by the pulling equipment tension;

(4) two-way heat seal typing: after deck panels and lower floor's panel are covered on honeycomb core two sides respectively on will be above-mentioned, through the press polish heat-sealing machine honeycomb core and last deck panels and lower floor's panel are combined into one, and by having the typing that cools of inner cooling circulating water, the back formation that eliminates stress has the closed pore honeycomb and moulds wooden composite plane plate;

(5) post processing: the closed pore honeycomb of should finalizing the design is moulded wooden composite plane plate and is further lowered the temperature by hauling machine traction and through cooling blower, is processed into typing closed pore honeycomb by cutting equipment at last and moulds wooden composite plane sheet material.

Claims

1. the wood-plastic clad plate with closed pore honeycomb comprises upper and lower panel (1) and core, it is characterized in that: the polygon space (3) that described core is gathered by central layer (2) and two sides thereof is constituted.

2. wood-plastic clad plate according to claim 1 is characterized in that: the regular hexagon space (3) that is substantially that described core is gathered by central layer (2) and two sides thereof is constituted.