CN-224227559-U - Waterproof wear-resisting high strength kraft paper

CN224227559UCN 224227559 UCN224227559 UCN 224227559UCN-224227559-U

Abstract

The utility model discloses waterproof wear-resistant high-strength kraft paper, which comprises a kraft paper substrate, wherein a first waterproof adhesive layer, a first wear-resistant layer, a first flame-retardant layer and a first protective layer which are sequentially connected from inside to outside are respectively arranged on the first surface of the kraft paper substrate, and a second waterproof adhesive layer, a second wear-resistant layer, a second flame-retardant layer and a second protective layer which are sequentially connected from inside to outside are respectively arranged on the second surface of the kraft paper substrate. The waterproof adhesive layer is simple in structure and reasonable in design, has better waterproof, wear-resistant and flame-retardant effects, the kraft paper base material is kraft paper soaked with thermosetting phenolic resin, the structural strength of the product is greatly improved, the tensile strength is improved, and the two waterproof adhesive layers are embedded with fiber net structures formed by vertically and horizontally interweaving polytetrafluoroethylene fibers and carbon nanofibers.

Inventors

CHEN XIONG
LIU YONG

Assignees

广东超伦新材有限公司

Dates

Publication Date: 20260512
Application Date: 20250103

Claims (5)

1. A waterproof wear-resistant high-strength kraft paper comprises a kraft paper substrate and is characterized in that the kraft paper substrate is kraft paper soaked with thermosetting phenolic resin, a first waterproof adhesive layer, a first wear-resistant layer, a first flame-retardant layer and a first protective layer which are sequentially connected from inside to outside are respectively arranged on the first surface of the kraft paper substrate, a second waterproof adhesive layer, a second wear-resistant layer, a second flame-retardant layer and a second protective layer which are sequentially connected from inside to outside are respectively arranged on the second surface of the kraft paper substrate, fiber network structures are embedded in the first waterproof adhesive layer and the second waterproof adhesive layer, and the fiber network structures are formed by longitudinally and transversely interweaving polytetrafluoroethylene fibers and carbon nanofibers.
2. The waterproof and wear-resistant high-strength kraft paper according to claim 1, wherein the first waterproof adhesive layer and the second waterproof adhesive layer are made of polyimide resin.
3. The method of claim 1, wherein the first and second wear layers are formed from nano-sized polytetrafluoroethylene particles.
4. The waterproof abrasion-resistant high strength kraft paper of claim 1, wherein the first flame retardant layer and the second flame retardant layer are inorganic flame retardants.
5. The kraft paper of claim 1, wherein the first protective layer and the second protective layer are made of epoxy acrylic resin.

Description

Waterproof wear-resisting high strength kraft paper Technical Field The utility model relates to the technical field of kraft paper, in particular to waterproof wear-resistant high-strength kraft paper. Background Kraft paper is often used to make packaging bags, envelopes, sandpaper, etc., which can protect materials, and the kraft paper itself has high strength and is usually yellow brown. Along with the increasing application range of kraft paper, the performance requirement of users on kraft paper is higher and higher, but most of the prior kraft paper is as same as a composite kraft paper with a patent authority bulletin number of CN203834290U, and has flame retardant and antistatic functions, but has poor waterproof effect, rainwater is easy to adhere to the kraft paper to corrode the kraft paper, and meanwhile, the tensile capacity of the kraft paper is poor and is easy to tear, and the wear resistance is still to be enhanced, so that the overall practicability of the kraft paper is reduced. Disclosure of utility model The utility model aims to overcome the defects in the prior art and provide the waterproof wear-resistant high-strength kraft paper which has high structural strength, strong tensile capacity and better waterproof, wear-resistant and flame-retardant effects. In order to achieve the above purpose, the utility model provides waterproof wear-resistant high-strength kraft paper, which comprises a kraft paper substrate, wherein the kraft paper substrate is kraft paper soaked with thermosetting phenolic resin, a first waterproof adhesive layer, a first wear-resistant layer, a first flame-retardant layer and a first protective layer which are sequentially connected from inside to outside are respectively arranged on the first surface of the kraft paper substrate, a second waterproof adhesive layer, a second wear-resistant layer, a second flame-retardant layer and a second protective layer which are sequentially connected from inside to outside are respectively arranged on the second surface of the kraft paper substrate, fiber network structures are embedded in the first waterproof adhesive layer and the second waterproof adhesive layer, and the fiber network structures are formed by longitudinally and transversely interweaving polytetrafluoroethylene fibers and carbon nanofibers. As a preferred embodiment, the first waterproof adhesive layer and the second waterproof adhesive layer may be preferably provided as polyimide resins, respectively. Preferably, the first and second wear-resistant layers may be provided as nano-scale polytetrafluoroethylene particles, respectively. Preferably, the first flame retardant layer and the second flame retardant layer may be respectively preferably provided as inorganic flame retardants. Preferably, the first protective layer and the second protective layer may be respectively preferably provided as epoxy acrylic resin. Compared with the prior art, the utility model has the beneficial effects that: The utility model has simple structure and reasonable design, the two surfaces of the kraft paper base material are respectively provided with the waterproof adhesive layer, the wear-resistant layer, the flame-retardant layer and the protective layer, the kraft paper base material has better waterproof, wear-resistant and flame-retardant effects, the kraft paper base material is the kraft paper soaked with thermosetting phenolic resin, the structural strength of the product is greatly increased, the tensile strength is improved, and the two waterproof adhesive layers are internally embedded with the fiber network structure formed by vertically and horizontally interweaving polytetrafluoroethylene fibers and carbon nanofibers, so that the mechanical property of the product is enhanced, the tensile strength is improved, the permeation path of water molecules is prolonged, and the waterproof performance is further enhanced. Drawings In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Fig. 1 is a schematic layer structure of waterproof abrasion-resistant high-strength kraft paper according to an embodiment of the utility model; Fig. 2 is an enlarged view of a portion of a fibrous web structure provided by an embodiment of the present utility model. Detailed Description For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompany