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Preparation method for medical pressure-sensitive hydrocolloid adhesive

A hydrocolloid and pressure-sensitive adhesive technology, applied in the directions of adhesives, adhesive types, adhesive additives, etc., can solve problems such as performance gaps, and achieve the effect of good integrity, excellent viscosity and persistence, and easy peeling.

Active Publication Date: 2016-08-10
国药集团山西瑞福莱药业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, my country is still in the initial stage of researching the field of medical hydrocolloid pressure-sensitive adhesives.
In the actual field of medical treatment and wound healing, the use of medical hydrocolloid pressure-sensitive adhesives is long-term and effective. However, in the long-term use process, the source of medical hydrocolloid pressure-sensitive There is a big gap between domestic products and foreign products in terms of performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A preparation method of medical hydrocolloid pressure-sensitive adhesive, comprising the following steps:

[0019] Step 1, in parts by weight, 10 parts of SBS block copolymer, 1 part of polyester thermoplastic elastomer, 3 parts of pectin, 2 parts of rosin glyceride, 1 part of calcium lignosulfonate, 3 parts of alkyl starch ester 6 parts of polyethylene glycol were mixed and dispersed to obtain a mixture;

[0020] Step 2, in parts by weight, add 2 parts of diethyl phosphite, 1 part of butyl acrylate, and 3 parts of sodium lauryl sulfate to the mixture obtained in step 1, stir and mix, and knead to obtain a kneaded product;

[0021] Step 3, in parts by weight, add 1 part of polytetrafluoroethylene, 3 parts of dimethylethanolamine, and 10 parts of hydroxyethyl cellulose to the kneaded product obtained in step 2, heat and stir in an inert gas atmosphere, and then mix Refining, that is.

[0022] Wherein, the dispersion condition in step 1 is 2000rpm, 40min, polyethylene g...

Embodiment 2

[0024] A preparation method of medical hydrocolloid pressure-sensitive adhesive, comprising the following steps:

[0025] Step 1, in parts by weight, 14 parts of SBS block copolymer, 2 parts of polyester thermoplastic elastomer, 6 parts of pectin, 4 parts of rosin glyceride, 3 parts of calcium lignosulfonate, 6 parts of alkyl starch ester 12 parts of polyethylene glycol were mixed and dispersed to obtain a mixture;

[0026] Step 2, in parts by weight, add 4 parts of diethyl phosphite, 3 parts of butyl acrylate, and 5 parts of sodium lauryl sulfate to the mixture obtained in step 1, stir and mix, and knead to obtain a kneaded product;

[0027] Step 3, in parts by weight, add 3 parts of polytetrafluoroethylene, 4 parts of dimethylethanolamine, and 14 parts of hydroxyethyl cellulose to the kneaded product obtained in step 2, heat and stir in an inert gas atmosphere, and then mix Refining, that is.

[0028] Wherein, the dispersion condition in step 1 is 2500rpm, 30min, polyethyl...

Embodiment 3

[0030] A preparation method of medical hydrocolloid pressure-sensitive adhesive, comprising the following steps:

[0031] Step 1, in parts by weight, 18 parts of SBS block copolymer, 3 parts of polyester thermoplastic elastomer, 5 parts of pectin, 3 parts of rosin glyceride, 4 parts of calcium lignosulfonate, 6 parts of alkyl starch ester 12 parts of polyethylene glycol were mixed and dispersed to obtain a mixture;

[0032] Step 2, in parts by weight, add 5 parts of diethyl phosphite, 3 parts of butyl acrylate, and 4 parts of sodium lauryl sulfate to the mixture obtained in step 1, stir and mix, and knead to obtain a kneaded product;

[0033] Step 3, in parts by weight, add 3 parts of polytetrafluoroethylene, 5 parts of dimethylethanolamine, and 14 parts of hydroxyethyl cellulose to the kneaded product obtained in step 2, heat and stir in an inert gas atmosphere, and then mix Refining, that is.

[0034] Wherein, the dispersion condition in step 1 is 2000rpm, 40min, polyethyl...

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PUM

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Abstract

The invention provides a preparation method for a medical pressure-sensitive hydrocolloid adhesive. The preparation method comprises the following steps: mixing and dispersing SBS segmented copolymer, polyester thermoplastic elastomer, pectin, glycerol ester of rosin, calcium lignin sulphonate, starch alkyl ester and polyethylene glycol; then adding diethyl phosphate, butyl acrylate and sodium lauryl sulfate into the obtained mixture and successively carrying out mixing under stirring and compounding; adding polytetrafluoroethylene, dimethyl ethanolamine and hydroxyethyl cellulose into the obtained compound; and then carrying out heating and stirring in an inert gas atmosphere and carrying out compounding so as to obtain the medical pressure-sensitive hydrocolloid adhesive. The medical pressure-sensitive hydrocolloid adhesive provided by the invention has excellent properties, wherein initial adhesion of the adhesive allows a standard steel ball No. 32 to be adhered, holding power reaches 114 min or above, peel strength reaches 0.07 KN.m<-1> or less, and peeling integrity is 97.9% or above; so the medical pressure-sensitive hydrocolloid adhesive has excellent adhesion and holding power, is convenient to peel and maintains good integrity after peeling.

Description

technical field [0001] The invention belongs to the technical field of medical materials, and in particular relates to a preparation method of a medical hydrocolloid pressure-sensitive adhesive. Background technique [0002] Medical hydrocolloid pressure-sensitive adhesive has the characteristics of strong water absorption, strong adhesion, good biocompatibility, no pollution, and no solvent. In recent years, it has been widely used in surgical wounds and stomas, dermatology, mattresses, etc. Drag, infectious ulcers and other medical fields. [0003] The plaster used in the earliest period in my country is the predecessor of medical hydrocolloid pressure-sensitive adhesive, which is used to apply and heal wounds. However, in recent years, the development of my country's medical hydrocolloid industry has been relatively slow. The main components of medical hydrocolloid pressure-sensitive adhesives include styrene-based block copolymers, hydrophilic colloid particles, and ta...

Claims

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Application Information

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IPC IPC(8): C09J153/02C09J101/28C09J11/06C09J11/08
CPCC08L2205/035C09J11/06C09J11/08C09J101/284C09J153/02C08L67/00C08L71/02C08L1/284C08K5/524C08K5/41C08K5/17C08L53/02
Inventor 不公告发明人
Owner 国药集团山西瑞福莱药业有限公司
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