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Preparation method of polymer oil-absorbing paper

An oil-absorbing paper and polymer technology, which is applied in the field of preparation of polymer oil-absorbing paper, can solve the problems of chemical raw material residues, silty shedding, allergies, etc., and achieve the effect of good oil-absorbing capacity.

Inactive Publication Date: 2016-12-07
李冬琼
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example: powdery oil-absorbing papers will fall off during storage and use; natural fiber oil-absorbing papers may damage delicate skin when used; modified fiber oil-absorbing papers may have chemical raw material residues that are transferred to site of action, causing allergies

Method used

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Embodiment Construction

[0016] The present invention will be described in further detail below, so that those skilled in the art can implement it with reference to the description.

[0017] The invention provides a preparation method of polymer oil-absorbing paper, comprising:

[0018] Step (1) dissolving polylactic acid and poly 3-hydroxybutyrate caproate in an organic solvent to prepare an organic phase of a mixed solution of polylactic acid and poly 3-hydroxybutyrate caproate;

[0019] Step (2) dissolving ammonium bicarbonate in water to prepare the water phase, the concentration of ammonium bicarbonate in the water phase is 4.3~6.7g / L;

[0020] Step (3) adding natural fibers into the water phase, the length of the natural fibers is 30-50 μm, dividing the organic phase into 4-7 parts, adding them into the water phase part by part, performing homogenization treatment after each part of the organic phase is added, The time of each homogenization treatment is 12 to 25 minutes, and the speed of homog...

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Abstract

The invention discloses a preparation method of polymer oil-absorbing paper. The preparation method comprises steps as follows: step (1), an organic phase of a polylactic acid and poly(3-hydroxybutyrate-co-3-hydroxyhexanoate mixed solution is prepared; step (2), ammonium bicarbonate is dissolved in water, and an aqueous phase is prepared; step (3), natural fibers are added to the aqueous phase, the length of the natural fibers is 30-50 mu m, the organic phase is divided into 4-7 parts and is added to the aqueous phase part by part, homogenization processing is performed after addition of every part of the organic phase, an emulsion is obtained, a volume ratio of total volume of the organic phase to the aqueous phase is (6-8):1, and a mass ratio of the natural fibers to the organic phase is (0.03-0.05): 1; step (4), the emulsion is left to stand at the normal temperature for 1-2 h, then the temperature is reduced from the normal temperature to 5 DEG C, and the emulsion is left to stand continuously at the temperature of 5 DEG C for 1h; step (5), the emulsion is subjected to freeze drying at the temperature of subzero 10 DEG C-subzero 15 DEG C for 3-4 h. The oil-absorbing paper prepared with the method has good oil absorbing capacity.

Description

technical field [0001] The invention relates to a preparation method of polymer oil-absorbing paper. Background technique [0002] In beauty and skin care, oil-absorbing paper or oil-absorbing film is an important auxiliary tool for facial care, mainly used to absorb and remove oily substances secreted by human facial skin. There are many disadvantages in current oil-absorbing paper or oil-absorbing film. For example: powdery oil-absorbing papers will fall off during storage and use; natural fiber oil-absorbing papers may damage delicate skin when used; modified fiber oil-absorbing papers may have chemical raw material residues that are transferred to The site of action can cause allergies. Therefore, need a kind of oil-absorbing ability more effective, to the oil-absorbing paper of skin nonirritating effect. Contents of the invention [0003] The invention designs and develops an oil-absorbing paper with better oil-absorbing ability and no stimulating effect. [0004]...

Claims

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Application Information

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IPC IPC(8): A61K8/85A61K8/19A61K8/73A61Q19/00
CPCA61K8/19A61K8/731A61K8/85A61K2800/72A61K2800/84A61Q19/00A61Q19/008
Inventor 李冬琼
Owner 李冬琼
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