Method of preparing homogenesis composite film by spiral fiber in coconut fiber and its application

A technology of coconut husk fiber and composite membrane, which is used in the field of preparing homogeneous composite membranes and uses from spiral fibers in coconut husk fibers, can solve problems such as separation of tube fibers in coconut husk fibers, and achieve excellent mutual adhesion. Effect

Active Publication Date: 2017-01-04
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

People such as S.Renouard pay close attention to ultrasonic treatment to the impact of different kinds of cellulose fiber degradation properties, the experiment is that coconut shell fiber is more sensitive to ultrasonic response, and it is easy to degrade the report (Sullivan Renouard, Christophe Hano et.al.Characterization of ultrasonic oncoil, flax and hemp fibers.Materials Letters, 2014, 129:137-141) is only to prove the effect of ultrasonic on the separation of different cellulose fibers, and does not involve the separation of tube fibers in coconut shell fibers

Method used

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  • Method of preparing homogenesis composite film by spiral fiber in coconut fiber and its application
  • Method of preparing homogenesis composite film by spiral fiber in coconut fiber and its application

Examples

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Effect test

Embodiment 1

[0037] A method for preparing a homogeneous composite membrane with helical fibers in coconut shell fibers, the specific steps are:

[0038] (1) Opening and removing impurities, scouring and swelling, and cleaning and removing impurities: the coconut shell is opened by mechanical striking, rubbing and pulling, and the particulate impurities are removed to obtain loose fiber clusters; the resulting fiber clusters are scoured, Washing and squeezing to remove water, the specific steps of scouring, washing and squeezing to remove water include placing the fiber mass in a beaker, completely submerging it in water, and placing it in a water bath at 60°C for simmering and swelling for 1 hour , stirring at a speed of 800rpm while scouring, after scouring, a multistage roller device is used to extrude the fiber mass to remove water, wash with water, and then extrude to remove water; the scouring, washing and extruding to remove water are carried out in a cycle 2 times, to remove the in...

Embodiment 2

[0044] A method for preparing a homogeneous composite membrane with helical fibers in coconut shell fibers, the specific steps are:

[0045] (1) Opening and removing impurities, scouring and swelling, and cleaning and removing impurities: the coconut shell is opened by mechanical striking, rubbing and pulling, and the particulate impurities are removed to obtain loose fiber clusters; the resulting fiber clusters are scoured, Washing and squeezing to remove water, the specific steps of scouring, washing and squeezing to remove water include placing the fiber mass in a beaker, completely submerging it in water, and placing it in a water bath at 80°C for swelling for 1.5 hours , stirring at a speed of 600rpm while scouring, after scouring, a multi-stage roller device is used to extrude the fiber mass to remove water, wash with water, and then extrude to remove water; the scouring, washing and extruding to remove water are circulated 3 times, after that, place in an oven at 80°C a...

Embodiment 3

[0051] A method for preparing a homogeneous composite membrane with helical fibers in coconut shell fibers, the specific steps are:

[0052] (1) Opening and removing impurities, scouring and swelling, and cleaning and removing impurities: the coconut shell is opened by mechanical striking, rubbing and pulling, and the particulate impurities are removed to obtain loose fiber clusters; the resulting fiber clusters are scoured, Washing and squeezing to remove water, the specific steps of scouring, washing and squeezing to remove water include placing the fiber mass in a beaker, completely submerging it in water, and placing it in a water bath at 98°C for swelling for 1 hour , stirring at a speed of 400rpm while scouring, after scouring, a multi-stage roller device is used to extrude the fiber mass to remove water, wash with water, and then extrude to remove water; the scouring, washing and extruding to remove water are circulated 4 times, after that, place it in an oven at 80°C a...

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Abstract

The invention provides a method for preparing homogenesis composite film by spiral fiber in coconut fiber and its application. The method for preparing homogenesis composite film by spiral fiber in coconut fiber is characterized by comprising the following steps: completely immerse the coconut fiber in 0.2-5 g/LNaOH solution at 60-98 DEG C for 10-60 minutes according to the bath ratio of 1: 30-1: 50; after stirring and synchronous ultrasound vibration for 0.2-2 hours, filter and obtain a unicellular fiber wet screen; perform extrusion, fluid exhaustion and multi-grade traction process on the obtained unicellular fiber wet screen through 2-4 grade traction zones consisting of 3-5 pairs of rollers; clean the obtained submicron spiral fiber pulp circularly and perform the natural disordering wet formation for 1-3 times; and then directly soak clean pulp or dried clean pulp to cellulose original liquid with weight concentration of 2%-50%; separate out and solidify submicron spiral fiber pulp and cellulose by buffer liquid; obtain the homogenesis composite film. The homogenesis composite film can be used as the biomedical flexible cellulose composite material, or ecological, functional and comfortable elastic film material.

Description

technical field [0001] The invention relates to a method for preparing a high-elasticity homogeneous composite membrane with helical fibers in coconut shell fibers, in particular to a method for preparing submicron helical fibers and their composite membranes by using an oxidation separation-mechanical drawing method. Background technique [0002] Cellulose is an inexhaustible, inexhaustible, green, non-polluting renewable resource in nature. The annual growth of plant cellulose on the earth is as high as hundreds of millions of tons, exceeding the total existing oil reserves, but the utilization amount is very small. Most of them are naturally degraded and burned as fuel, which itself is a kind of pollution. It is reported that the loss caused by environmental pollution and ecological damage has accounted for 15% of the total GDP, which means that there is a 9% economic growth on the one hand and a loss rate of 15% on the other. When human society is faced with many proble...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08L1/02
CPCC08J5/18C08J2301/02C08J2401/02C08L1/02C08L2203/02C08L2203/16C08L2205/025C08L2205/16
Inventor 刘洪玲于伟东韦童
Owner DONGHUA UNIV
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