CN205756014U - Abat vent based on after-drawing highstrenghtpiston's thin film - Google Patents

Abstract

The utility model discloses a kind of abat vent based on after-drawing highstrenghtpiston's thin film, if including some warp-wise braided fibers, some broadwise braided fibers and dry film bar, described warp-wise braided fiber and broadwise braided fiber weaving reticulate structure, and described film bar is in described network structure among adjacent two warp-wise braided fibers and be wrapped among two broadwise braided fibers of before and after；Described film bar includes that the upper, middle and lower bondd successively, described upper strata, middle level are, with lower floor, the after-drawing highstrenghtpiston's thin film being coated with fire retardant, and the outer surface of described upper strata and lower floor is coated with titanium dioxide.This utility model, by optimization integrally-built to abat vent, enhances its bulk strength, and makes product have preferable fire resistance, ageing resistace, promotes the service life of product at least up to 10 years；Have preferably in the case of shaded effect, it is also possible to play and be preferably incubated reflection, there is higher popularizing value.

Description

Abat vent based on after-drawing highstrenghtpiston's thin film

Technical field

This utility model belongs to agricultural facility field, relates to a kind of high-tech heat preservation energy-saving product, is used for controlling in greenhouse Intensity of illumination keeps stablizing of temperature indoor temperature, particularly relates to a kind of abat vent based on after-drawing highstrenghtpiston's thin film.

Background technology

Now the whole world faces the problem that cultivated area reduces the most year by year, people in order to solve the problem of this sternness, Always at the implantation methods that challenge is new, it is typically include modern greenhouse.The advantage of chamber planting is water saving, is not limited by season System, can be that market provides the kinds such as abundant veterinary antibiotics, flowers and yield high throughout the year.

There is the most state-of-the-art chamber planting technology in Holland, and the light application time controlling crop by light compensating lamp is strong with illumination Degree, makes crop whether at rainy day or cloudy day, all enjoys the high development that the illumination of abundance brings.But, strong illumination is easily Cause the light pollution of surrounding, even affect the flight of aircraft.Therefore be that base material manufactures abat vent with the film of full shading, stop The pollution of light is imperative.

Present existing solution be mostly to use LDPE white black/tunica albuginea be base material to manufacture abat vent, but this kind of material Intensity is low, and shrinkage factor is big, elongation at break is big, is unfavorable for that rear road processes；Or, it is in upper and lower double-layer films, directly add increasing White agent, but this mode can not hide light effectively, thus be difficult to reach based on the abat vent made by this kind of material The preferably effect of shading.For this reason, it is necessary to the structure of existing abat vent and base material thereof is done the improvement made new advances.

Utility model content

The purpose of this utility model is for above-mentioned deficiency of the prior art, it is provided that a kind of based on after-drawing high intensity The abat vent of plastic sheeting, by changing abat vent and the structure of base material used thereof, and then realizes optimizing properties of product, Quan Mianti Rise the purpose of product quality.

For solving above-mentioned technical problem, this utility model adopts the following technical scheme that

A kind of abat vent based on after-drawing highstrenghtpiston's thin film, compiles including some warp-wise braided fibers, some broadwises If textured fiber and dry film bar, described warp-wise braided fiber and broadwise braided fiber weaving reticulate structure, described film bar Jie In described network structure among adjacent two warp-wise braided fibers and be wrapped between two broadwise braided fibers of before and after；Described Film bar includes that the upper, middle and lower bondd successively, described upper strata, middle level are, with lower floor, the after-drawing being coated with fire retardant Highstrenghtpiston's thin film, the raw material of described after-drawing highstrenghtpiston's thin film is polyolefin or PET material；Described upper strata and under The outer surface of layer is coated with titanium dioxide.

Further, the inner and outer surfaces of described upper strata and lower floor is equipped with uvioresistant coating；Or, described upper strata and under The outer surface of layer is equipped with uvioresistant coating；Or, the outer surface on described upper strata is provided with uvioresistant coating.

Further, between described upper strata and middle level, between described middle level and lower floor, it is equipped with light shield layer.

Further, the thickness of described upper strata, middle level and lower floor is than for 2:1:2.

The greenhouse multifunctional and composite type abat vent that the utility model proposes has the advantage that

1, by the optimization of the structure of abat vent and the film bar being used as base material thereof being enhanced the bulk strength etc. of abat vent Performance.

2, by setting up colourless fire retardant, uvioresistant coating in film bar so that product has preferable fire resistance, resists Ageing properties, and then promote the service life of product at least up to 10 years.

3, by setting up light shield layer in film bar, still there is under strong illumination preferably shaded effect.

4, by the upper strata of film bar and lower floor's titanium dioxide coating, this abat vent may also operate as preferably being incubated reflection Effect.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Fig. 2 is the structural representation of film bar.

In figure: 1-warp-wise braided fiber；2-broadwise litzendraht wire；3-film bar；4-upper strata；5-middle level；6-lower floor.

Detailed description of the invention

Describe preferred embodiment of the present utility model below in conjunction with the accompanying drawings in detail.

Refer to Fig. 1 and Fig. 2, the utility model discloses a kind of abat vent based on after-drawing highstrenghtpiston's thin film, If including some warp-wise braided fibers 1, some broadwise braided fibers 2 and dry film bar 3, described warp-wise braided fiber 1 is compiled with broadwise Textured fiber 2 weaving reticulates structure, described film bar 3 in described network structure adjacent two warp-wise braided fibers 1 it Between and be wrapped between two broadwise braided fibers 2 of before and after；Described film bar includes upper strata 4, middle level 5 and the lower floor 6 bondd successively, Described upper strata 4, middle level 5 and lower floor 6 are the after-drawing highstrenghtpiston's thin film being coated with fire retardant, it is of course also possible to directly Fire retardant is added described upper strata 4, middle level 5 and lower floor 6；The raw material of described after-drawing highstrenghtpiston's thin film is that PET is (poly-to benzene Naphthalate) or polyolefine material；The outer surface of described upper strata 4 and lower floor 6 is coated with titanium dioxide (titanium dioxide Titanium).

If above-mentioned after-drawing highstrenghtpiston's thin film is with polyolefine material as raw material, the fire retardant coated by its surface is preferredNOR116 hindered amine fire retardant (also may select other kinds of fire retardant), this fire retardant thing to polymer Reason mechanical impact is less, and good with the compatibility of polymer, with494、944 also Having preferable concertedness good, its flame retardant rating reaches V-0 grade standard.As above-mentioned after-drawing highstrenghtpiston's thin film is (poly-with PET Ethylene glycol terephthalate) material is raw material, colourless organic phosphates fire retardant selected by the fire retardant coated by its surface, including Phosphorus (phosphine) acid esters, phosphite ester, organophosphorated salt, phosphine oxide, phosphorus-containing polyol etc., preferred unit phosphorus content 6000～ 10000PPM, the most equally realizes good flame retardant effect.

Polyolefin involved by above-mentioned film bar 3 (adding UV) and PET material and single-glass, the correlated performance of plastics PC plate It is compared as follows shown in table:

Title material	Single-glass	Plastics PC plate	UV polyolefine material	PET material
					Thickness (mm)	5	10 (hollows)	0.1～0.2	0.15～0.25
Light transmittance (%)	88～92	79～81	85～90	≥90
					Heat transfer coefficient (W/m2K)	5.6	3.2	6.5～7.0	3.2～3.5
Weight (kg/m2)	10.5	2.2	0.091～0.18	0.21～0.28
					Service life	≥10	>=10 years	>=10 years	≥10
Price (unit/square metre)	25	70	5 yuan	≥20
					Other features	Frangible	Interlayer easily enters ash water inlet	The most fragile	Intensity is high

The inner and outer surfaces of described upper strata 4 and lower floor 6 is equipped with uvioresistant coating；Or, outside described upper strata 4 and lower floor 6 Surface is equipped with uvioresistant coating；Or, the outer surface on described upper strata 4 is provided with uvioresistant coating.The master of described uvioresistant coating Wanting raw material is anti ultraviolet agent；It is of course also possible to directly anti ultraviolet agent to be added described upper strata 4, middle level 5 and the PET used by lower floor 6 In (polyethylene terephthalate) or polyolefine material.If above-mentioned after-drawing highstrenghtpiston's thin film is with polyolefine material For raw material, described anti ultraviolet agent is preferred494 or944, their effective ingredient belongs to and is obstructed Amine substance, between wave-length coverage 290nm-350nm, the degree of uvioresistant light is far above every other currently used resisting Ultraviolet agent；Their uvioresistant ability elapses the most in time and declines, and adding one has494 orFor the film bar of the 200um thickness that aforementioned after-drawing highstrenghtpiston's thin film of 944 is made, it resists Ultraviolet performance value even remains to reach more than the 80% of raw value after xenon lamp irradiates 20000 hours；It addition, keeping light In terms of learning performance (such as color, aberration and transparency etc.), its performance is also much better than the anti ultraviolet agent of other tradition classes.After above-mentioned Stretching highstrenghtpiston's thin film is with PET (polyethylene terephthalate) material as raw material, and described anti ultraviolet agent is preferred234 or1577 or1600, good aging resistance effect can be played the most too Really.

Light shield layer it is equipped with, described light shield layer the most former between described upper strata and middle level, between described middle level and lower floor Material is white carbon black.Arranging of this light shield layer can make this abat vent play preferable shaded effect.

Preferably, the thickness of described upper strata 4, middle level 5 and lower floor 6 is than for 2:1:2.Experiment shows, now described The performances such as the bulk strength of abat vent, light blocking effect are obviously improved.

It is, of course, also possible to selectively on aforementioned upper strata 4, middle level 5 and the after-drawing highstrenghtpiston used by lower floor 6 thin Membrane material adds titanium dioxide (or oxide powder and zinc), white carbon black, aluminium powder；Such as, upper strata 4, middle level 5 and the after-drawing used by lower floor 6 Highstrenghtpiston's thin-film material is added with titanium dioxide (or oxide powder and zinc), carbon powder, titanium dioxide (or oxide powder and zinc) respectively, or Titanium dioxide (or oxide powder and zinc), titanium dioxide (or oxide powder and zinc), carbon powder, or aluminium powder, aluminium powder, carbon powder, or aluminium powder, charcoal Black powder, aluminium powder, it is also possible to the one in each layer all adds titanium dioxide, oxide powder and zinc, carbon powder, aluminium powder.

At present, the extrusion technique of plastic sheeting substantially has blown film, curtain coating biaxial tension, curtain coating simple tension etc.. The plastic foil intensity that blowing produces in these techniques is the highest, and later stage dimensional stability is poor, is easily generated contraction, but processes Method is relatively simple；And the plastic foil intensity height that the tape casting stretch processes and the tape casting simple tension technique produce, but its Production difficulty is higher, and equipment cost puts into big.It is singly that casting machine is just high than the requirement of inflation film manufacturing machine, but also high request to be had Online stretcher.But the fill material in product film there are relatively strict requirements, are to add more filling-modified thing 's.And the abat vent that uses as modern intelligent greenhouse is higher to the requirement of dimensional stability, i.e. require the thermal contraction of base material Rate is little.

Film bar involved in this utility model is after-drawing highstrenghtpiston's thin film, and described after-drawing highstrenghtpiston is thin The raw material of film is PET or polyolefine material；This kind of thin film is produced the strongest initially with the mach method of multilamellar blown film The initial plastic sheeting of degree, the processing request utilizing blow moulding machine is the highest, can add the feature of more additive or implant, first Plastic sheeting carries out blown film processing, and the initial plastics of modified or unmodified common intensity blowing processing prepared the most again are thin Film off-line stretcher deep processing again, and to its carry out longitudinal stretching or vertical, horizontal stretching thus obtain unidirectional or two-way The modification of stretching or the unmodified abat vent plastic film substrate possessing high intensity and good stability of the dimension, the most both solved The phenomenon that casting apparatus can not normally produce because adding a large amount of filling-modified things so that originally needed high intensity needs again simultaneously There is being produced as the after-drawing highstrenghtpiston's thin film used by abat vent base material of certain modified requirement, the most permissible The Meteorological of reduction equipment and the requirement to place length；Moreover, the product not being modified also can add by the method Work.

Description the most of the present utility model and application are illustrative, are not wishing to be limited in scope of the present utility model State in embodiment；In the case of without departing from this utility model scope and spirit, embodiments disclosed herein can be carried out Other deformation and change.

Claims (4)

1. an abat vent based on after-drawing highstrenghtpiston's thin film, it is characterised in that: if including some warp-wise braided fibers If dry broadwise braided fiber and dry film bar, described warp-wise braided fiber and broadwise braided fiber weaving reticulate structure, institute State film bar in described network structure among adjacent two warp-wise braided fibers and be wrapped in two broadwise braided fibers of before and after Between；Described film bar include the upper, middle and lower bondd successively, described upper strata, middle level be with lower floor be coated with fire-retardant After-drawing highstrenghtpiston's thin film of agent；The outer surface of described upper strata and lower floor is coated with titanium dioxide.

Abat vent based on after-drawing highstrenghtpiston's thin film the most according to claim 1, it is characterised in that:

The inner and outer surfaces of described upper strata and lower floor is equipped with uvioresistant coating；Or, the outer surface of described upper strata and lower floor is all provided with There is uvioresistant coating；Or, the outer surface on described upper strata is provided with uvioresistant coating.

Abat vent based on after-drawing highstrenghtpiston's thin film the most according to claim 1, it is characterised in that:

Between described upper strata and middle level, between described middle level and lower floor, it is equipped with light shield layer.

Abat vent based on after-drawing highstrenghtpiston's thin film the most according to claim 1, it is characterised in that:

The thickness ratio of described upper strata, middle level and lower floor is: 2:1:2.