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Fiber proof against infrared transmission and preparation method and application of such fiber

An infrared transmission and near-infrared technology, applied in fiber processing, fiber chemical characteristics, rayon manufacturing, etc., can solve the problem of not effectively reducing the perspective of near-infrared digital cameras, and achieve the effect of preventing the formation and reducing the transmittance.

Inactive Publication Date: 2018-03-09
SHANDONG SHENGQUAN NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fiber disclosed in this scheme can effectively shield visible light, but because near-infrared light has a stronger penetrating ability to fabrics, the blocking effect on near-infrared light through light reflection and refraction is very limited, so it cannot be effectively shielded. The reduced perspective of near-infrared digital cameras

Method used

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  • Fiber proof against infrared transmission and preparation method and application of such fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] (1) Put the 30-300nm metal silicon powder in a high-speed kneader, heat up to 90-110°C, then spray a mixture of titanate coupling agent and liquid paraffin (volume ratio 1:1), and then add The polyethylene wax and the first polymer base material (polyester chip) are premixed, the premixing speed is 5000r / min, and the mixing time is 20min. 250°C, 250°C, 250°C, 252°C to obtain metal silicon masterbatch, wherein the metal silicon content is 20wt%;

[0072] Put 30-300nm titanium dioxide powder in a high-speed kneader, heat up to 90-110°C, then spray a mixture of titanate coupling agent and liquid paraffin (volume ratio 1:1), then add polyethylene wax and The first polymer substrate (polyester chip) is premixed, the premixing speed is 10000r / min, and the mixing time is 25min. After mixing evenly, it is melted and extruded through twin-screws. The temperature in each zone is 150°C, 250°C, 250°C, 250°C, 248°C to obtain metal silicon masterbatch, wherein the content of titaniu...

Embodiment 2

[0081] The difference with Example 1 is that, by adjusting the inorganic material content and mixing ratio of the inorganic material master batch, so that:

[0082] In step (2) described cortex base material, the content of metallic silicon is 0.25wt%, the content of titanium dioxide is 0.6wt%;

[0083] In the core material, the content of zirconium carbide is 0.25wt%, and the content of graphene material is 0.25wt%.

Embodiment 3

[0085] The difference with embodiment 1 is:

[0086] In step (2) described cortex base material, the content of metal silicon is 2wt%, and the content of titanium dioxide is 3.6wt%;

[0087] In the core material, the content of zirconium carbide is 2wt%, and the content of graphene material is 4wt%.

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Abstract

The invention relates to a fiber proof against preventing infrared transmission. The fiber comprises a core material and a skin outside the core material, wherein the core material comprises a first polymer base material as well as silicon and titanium dioxide which are dispersed in the first polymer base material; the skin comprises a second polymer base material as well as graphene and zirconiumcarbide which are dispersed in the second polymer base material. The fiber proof against preventing infrared transmission has the advantages that the fiber of a skin-core material structure comprisesthe skin and the core material which are filled with optimized inorganic particles, thereby being capable of absorbing near infrared rays and converting the near infrared rays into far infrared raysand making transmission and reflection of the near infrared rays less to avoid imaging.

Description

technical field [0001] The invention belongs to the field of functional fiber materials, and in particular relates to a near-infrared transmission-resistant fiber, a preparation method and an application. Background technique [0002] With the popularity of digital cameras, infrared photography has become possible. The photosensitive components of digital cameras can receive near-infrared light in the 700-1200nm band, and the light in this band can penetrate light and thin substances, such as atmospheric smog, resin plastics, clothing fabrics, etc. Especially for light and thin fabrics, because the near-infrared rays are less reflected by the fabric, more of them will pass through the fabric to reach the surface of the human skin and be reflected back, which makes infrared vision possible. Infrared candid perspective photography is carried out without permission, and most of the private parts of the human body are photographed, thereby infringing on the privacy of the victi...

Claims

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Application Information

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IPC IPC(8): D01F8/14D01F8/12D01F1/10D01D5/34
CPCD01F8/14D01D5/34D01F1/10D01F1/106D01F8/12
Inventor 唐地源胡兴文吕冬生王双成许日鹏
Owner SHANDONG SHENGQUAN NEW MATERIALS CO LTD