Sun-shading composite material with extinction and high flame-retardant effects

Abstract

The invention discloses a sun-shading composite material with extinction and high flame-retardant effects. The composite material is a fabric comprising warps and wefts, wherein the fabric is woven by covering threads, rectangular or square gaps are left among the wefts, and the porosity of the composite material is 2-5%; the covering threads are made of a polyvinyl chloride composite material coating the surfaces of polyester fibers, the polyvinyl chloride composite material has the extinction and high flame-retardant effects and the covering threads are 0.3-0.5mm in diameter. The invention also provides a preparation method of the composite material. The sun-shading composite material has the characteristics of sunshading, ultraviolet ray resistance, inflaming retarding, high color fastness and the like of similar sun-shading composite materials, and also has the advantages of low glossiness, glare control, softness, comfort for eyes, fine and smooth handfeel and good breathability, and therefore, the sun-shading composite material can be well applied to the fields of leisure, fashion and individuation.

Description

technical field [0001] The invention relates to a sun-shading composite material, in particular to a sun-shading composite material with extinction effect and high flame-retardant effect and a preparation method thereof. Background technique [0002] Sunshade materials, in short, are used to block sunlight and sunlight, and cover items to avoid contact with strong light. It has the functions of sunshade, light transmission, heat insulation, UV protection, fire prevention, moisture resistance, ventilation and so on. Widely used in drapes, roller blinds and curtains. The sunshade fabric is widely used in commercial, administrative office buildings, exhibition halls, libraries, gymnasiums, hotels and other large public places to reflect the concept of leisure and quality life. A fad and trend. [0003] The traditional covered yarn sunshade material is a kind of fabric material obtained by weaving covered threads or fiber threads. Most of the covered threads used are soft bri...

AI Technical Summary

Problems solved by technology

[0005] In terms of improving the matting performance of composite materials by adding matting agents, there are quite a lot of research reports at home and abroad, most of which are matted by adding wax powder and silica matting powder. The disadvantages are: (1) If you want to achieve a relatively For good matting effect, the amount of matting powder added is relatively large. Due to the poor compatibility between matting powder and PVC resin, the addition of a large amount of matting powder seriously affects the mechanical properties of the product, such as poor flow processing performance and strength; (2) The matting effect is not ideal, especially when the amount of matting powder is added to a certain value, the matting effect cannot be significantly improved, and the low gloss requirements of some high-end products cannot be achieved; (3) due to the compatibility of various low molecular wax powders with PVC resin Poor performance, there will be "whitening" phenomenon on the surface after a long time

However, this method cannot improve the fluidity of the PVC composite material, making the processing of the PVC composite material more difficult.

Chinese patent application (publication number: CN101440238A) relates to anti-aging matting coating and its preparation method, by adding other additives such as inorganic silicon dioxide to ethylene propylene rubber, the material has good matting and anti-aging properties, but the material is flame retardant poor performance

However, the Chinese patent application (publication number: CN102898755A) relates to a PVC matting film modified by matting resin. A film with certain matting performance is prepared by adding matting PVC resin, but the material has no flame retardancy, which limits its application. scope

[0009] It can be seen from the above prior art that improving the matting performance and flame retardancy of the material and the flow processing performance of the material are mutual restraint solutions. If the flame retardancy and matting performance are improved, the fluidity will decrease

Images