Waterproof and flame-retardant paper cone

A technology for flame retardant paper and paper cones, which is applied in the fields of paper, papermaking, water repellent addition, etc. It can solve problems such as less research, and achieve the effects of improving mechanical strength, improving damping, toughness and strength stability

Active Publication Date: 2017-07-14
广西玉林市禹力音响配件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing pulp production formula is usually composed of wood fibers such as coniferous wood fiber and broad-leaved wood fiber to imp

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A waterproof and flame-retardant paper cone, the pulp of the paper cone is mainly formed by mixing and stirring the following raw materials in parts by weight: 45 parts of natural sulfate softwood wood pulp, 15 parts of sisal hemp, 10 parts of cotton pulp, 10 parts of kapok, 0.3 parts of bulletproof fiber, 0.1 part of wool, 0.05 part of glass fiber, 2 parts of dye, 1 part of salt, 3 parts of hardener, 3 parts of epoxy resin toughening agent, 3 parts of polyaluminum chloride regulator, 3 parts of waterproofing agent and 3 parts of flame retardant.

[0041] Among them, the dye is direct sunfast black G, the hardener is a mixture of monochloroacetic acid and trimethyl phosphate at a ratio of 1:0.2; the waterproofing agent is acrylic latex, hydroxyethyl cellulose, bentonite and sodium metasilicate The weight ratio of 1:0.1:0.2:0.05 is added to water, mixed and stirred to form an emulsion, and then placed in a stirring reflux device for reflux reaction for 3 hours; the flame...

Embodiment 2

[0043] A waterproof and flame-retardant paper cone, the pulp of the paper cone is mainly formed by mixing and stirring the following raw materials in parts by weight: 65 parts of bleached kraft softwood pulp, 30 parts of sisal, 20 parts of cotton pulp, 20 parts of kapok, 1 part of bulletproof fiber, 0.8 part of wool, 0.5 part of glass fiber, 8 parts of dye, 5 parts of table salt, 8 parts of hardener, 8 parts of phenolic resin toughening agent, 8 parts of polyaluminum chloride regulator, 8 parts of water repellent and barrier Fuel 8 parts.

[0044] Among them, among the dyes, direct sunfast black G: direct bright red = 10:0.5, the hardener is a mixture of monochloroacetic acid and trimethyl phosphate at a ratio of 1:0.8; the waterproofing agent is acrylic latex, hydroxyethyl Cellulose, bentonite and sodium metasilicate are added into water in a weight ratio of 1:0.5:0.5:0.2, mixed and stirred to form an emulsion, and then placed in a stirring reflux device for reflux reaction f...

Embodiment 3

[0046] A waterproof and flame-retardant paper cone, the pulp of the paper cone is mainly formed by mixing and stirring the following raw materials in parts by weight: 50 parts of natural kraft softwood pulp, 20 parts of sisal hemp, 12 parts of cotton pulp, 12 parts of kapok, 0.4 parts of bulletproof fiber, 0.2 parts of wool, 0.1 part of glass fiber, 3 parts of dye, 2 parts of salt, 4 parts of hardener, 4 parts of unsaturated polyester resin toughening agent, 4 parts of aluminum sulfate regulator, 4 parts of waterproofing agent and 4 parts of flame retardant.

[0047] Wherein, the dye is direct sunfast black G, and the hardener is a mixture of monochloroacetic acid and diethyl oxalate at a ratio of 1:0.2. The waterproofing agent is made by adding acrylic latex, hydroxyethyl cellulose, bentonite and sodium metasilicate into water according to the weight ratio of 1:0.2:0.25:0.08, mixing and stirring to form an emulsion, and then placing it in a stirring reflux device for reflux r...

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Abstract

The invention discloses a waterproof and flame-retardant paper cone, belonging to the technical field of electroacoustic products. The slurry of the paper cone is prepared by mixing and sitrring the following main raw materials in parts by weight: wood pulp, sisal hemp, cotton pulp, kapok, bulletproof fiber, wool, glass fiber, a dye, table salt, a hardening agent, a flexibilizer, a regulator, a waterproofing agent and a flame retardant, wherein the waterproofing agent is prepared through the following steps: adding acrylic rubber latex, hydroxyethyl cellulose, bentonite and sodium metasilicate according to a weight ratio of 1: (0.1-0.5): (0.2-0.5): (0.05-0.2) into water, carrying out mixing under stirring so as to form an emulsion, placing the emulsion in a stirring reflux device, and carrying out a reflux reaction for 3 to 4 hours; and the flame retardant is prepared by uniformly mixing kaolin with decabrominated dipheny ethane and antimonous oxide or magnesium hydroxide with a weight ratio of 1: (1-5) under stirring. The waterproof and flame-retardant paper cone provided by the invention has subdued sound effect and good dampproof and waterproof performances, flame retardance and mechanical performance, and is improved in use safety and prolonged in service life.

Description

technical field [0001] The invention relates to the technical field of electroacoustic products, in particular to a waterproof and flame-retardant paper cone. Background technique [0002] The speaker paper cone is a special black or gray paper product, which is the most flammable object in a TV or radio; when the whole machine fails, the paper cone may catch fire and cause a fire, which poses a safety hazard. Treating this kind of paper cone with flame-retardant treatment is like taking safety protection measures for people's lives and property. Therefore, flame retardancy is an important issue in the production of speaker cones. However, because the water solubility of the flame retardant is limited, the flame retardant effect will be reduced or limited when the paper is damp. Moisture resistance is also an important issue in the production of speaker cones. In actual production, due to the mildew and rainy season in summer, the moisture-proof performance of the paper c...

Claims

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Application Information

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IPC IPC(8): D21H15/12D21H17/68D21H21/16D21H21/14D21H21/34D21H21/18H04R7/00
CPCD21H15/12D21H17/68D21H21/14D21H21/16D21H21/18D21H21/34H04R7/00
Inventor 覃第起杨凯龙凌少林
Owner 广西玉林市禹力音响配件有限公司
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