The flexible polyethylene insulation quilt
Technical field
The utility model belongs to the structural design of flexible polyethylene insulation quilt.
Background technology
The night insulation measure generally adopted of the most of regional heliogreenhouse of China now is to cover straw screen or mat, cattail mat, paper quilt, cotton-wadded quilt, cotton felt insulation quilt etc. on the canopy film, is approximately 2 years service life.Find that in actual application though these insulation materials can satisfy the insulation requirement, its heat insulating ability is subjected to weather influence big and own wt is big.In rain, snow sky, not only heat-insulating property decline after the insulation quilt immersion, and can freeze, influence is operated even can't be reeled again and open.In addition, be subject to bioerosion, scratch the canopy film and the grass bits that peel off the daylighting of crop is impacted etc. also is its weak point.As the greenhouse covering insulation material, require that it is ageing-resistant, good heat preservation performance, water absorption rate is low, intensity is high, and the canopy film is shielded.The lightweight polyethylene foam material will be the regeneration product of desirable heliogreenhouse insulation quilt.
Patent 99258764.6 is to utilize binding agent to make polyethylene, woven cloth and ageing-resistant film strong bonded and prepare the flexible polyethylene insulation quilt.But the method processing cost of this employing binding agent is higher, and technology is complicated.
Summary of the invention
The purpose of this utility model provides a kind of structural design of flexible polyethylene insulation quilt.
The utility model utilizes polyethylene foam sheet that heat-insulating property is provided, and utilizes woven polyethylene cloth as reinforcing material, utilizes ageing-resistant film of polyethylene or woven cloth to prolong the service life of insulation quilt as aging-resistant layer.Utilize the self-adhesion heat-sealing machine to realize that the welding of woven polyethylene cloth and polyethylene interlayer is compound, be compounded to form the novel flexible polyethylene insulation quilt that structure is woven cloth // froth bed // aging-resistant layer in the another side and the welding of polyethylene aging-resistant layer of polyethylene layer.
Have according to the novel flexible polyethylene insulation quilt of the utility model preparation do not absorb water, own wt is light, to canopy film not damaged, easy and simple to handle, heat insulating ability be subjected to lastingly and not weather influence, storage convenient, be convenient to advantage such as suitability for industrialized production.In addition, this material has good, ageing-resistant, anti-various chemical substances of mechanical property and bioerosion.The insulation that this new material can be used as heliogreenhouse covers material, and also can be used for livestock and poultry house, overwintering protection of fruit tree and silkworm and culture the heat preserving and insulating material of using the silkworm chamber, be a kind of broad-spectrum heat insulating material.
Description of drawings
Accompanying drawing 1 is the schematic diagram of flexible polyethylene insulation quilt.
(1) woven cloth among the figure, (2) froth bed, (3) aging-resistant layer.
The specific embodiment
Further specify the utility model below in conjunction with accompanying drawing.
As shown in the figure, utilize the self-adhesion heat-sealing machine successively that woven cloth (1) and froth bed (2) is compound, compound with aging-resistant layer (3) more afterwards.
Froth bed described in the utility model (2) is selected the light flexible polyethylene foam sheet for use, and woven cloth (1) is selected the woven woven cloth of polyethylene flat filament for use, and aging-resistant layer (3) is selected polyethylene film or the woven polyethylene cloth that contains age-inhibiting addition for use.
At first utilize the self-adhesion heat-sealing machine to realize that the one side and the welding between woven polyethylene cloth (1) of polyethylene layer (2) are compound, then, utilize the self-adhesion heat-sealing machine that the another side of polyethylene layer (2) in compound good woven polyethylene cloth // polyethylene foam material and the ageing-resistant film of polyethylene or base fabric welding are compounded to form the novel flexible polyethylene insulation quilt that structure is woven cloth // froth bed // aging-resistant layer.