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Preparation method of PVDC (polyvinyl dichloride) composition for spinning

A composition and spinning technology, applied in the field of PVDC composition preparation, can solve the problems of poor thermal stability and flame retardancy of PAN-based fibers, poor heat resistance of protein-based fibers, high thermal shrinkage, etc., to achieve spinning performance and Good processing thermal stability, improved thermal stability and processing performance, and comfortable hand feeling

Active Publication Date: 2015-09-23
ZHEJIANG QUZHOU JUSU CHEM IND CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are disadvantages in these products: PVC-based fibers have poor thermal stability and fluffy feeling, high thermal shrinkage rate, and are prone to yellowing; protein-based fibers have poor heat resistance; PAN-based fibers have poor thermal stability and flame retardancy; polyester-based fibers Fibers generally have poor flame retardancy; human hair has limited sources
The disadvantage of this invention is that the thermal stability of the prepared resin is low, and it is only suitable for wet spinning

Method used

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  • Preparation method of PVDC (polyvinyl dichloride) composition for spinning
  • Preparation method of PVDC (polyvinyl dichloride) composition for spinning
  • Preparation method of PVDC (polyvinyl dichloride) composition for spinning

Examples

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Effect test

Embodiment 1

[0031] A preparation method for spinning PVDC compositions, comprising the following steps:

[0032] (1) Prepare the reaction raw materials for subsequent use, and the raw material formula is as follows:

[0033]

[0034]

[0035] (2) Prepare pH buffer regulator aqueous solution and dispersant aqueous solution: sodium pyrophosphate 20g and disodium dihydrogen phosphate 20g are mixed with deionized water 2kg to be pH buffer regulator aqueous solution; methyl cellulose ether 18g, Use 9kg of deionized water to prepare an aqueous dispersant solution;

[0036] (3) Put 5kg of deionized water into a 100L polymerization kettle (stainless steel polymerization kettle with stirring device, length-to-diameter ratio of 2:1, double-layer two-page 45° inclined paddle), seal the kettle for pressure test and vacuumize, then add VDC Monomer, VCM monomer, azobisisobutyronitrile, after dispersing for 10 minutes at 120rpm / min, add aqueous dispersant solution, pH value buffer regulator aqueo...

Embodiment 2

[0041] A preparation method for spinning PVDC compositions, comprising the following steps:

[0042] (1) Prepare the reaction raw materials for subsequent use, and the raw material formula is as follows:

[0043]

[0044]

[0045] (2) Preparation of pH value buffer regulator aqueous solution and dispersant aqueous solution: sodium pyrophosphate 20g and disodium dihydrogen phosphate 20g are mixed with deionized water 2kg to make pH value buffer regulator aqueous solution; hydroxypropyl methylcellulose Ether 24g, mixed with deionized water 9kg to make dispersant aqueous solution;

[0046] (3) Add 5kg of deionized water into a 100L polymerization kettle (stainless steel polymerization kettle with stirring device, aspect ratio 2:1, double-layer two-page 45° inclined paddle), seal the kettle for pressure test, add VDC unit after vacuuming Body, VCM monomer, dibenzoyl peroxide, after dispersing at 140rpm / min for 10 minutes, add dispersant aqueous solution, pH value buffer reg...

Embodiment 3

[0051] A preparation method for spinning PVDC compositions, comprising the following steps:

[0052] (1) Prepare the reaction raw materials for subsequent use, and the raw material formula is as follows:

[0053]

[0054] (2) Preparation of pH value buffer regulator aqueous solution and dispersant aqueous solution: sodium pyrophosphate 18g and sodium dihydrogen phosphate 12g are mixed with deionized water 2kg into pH value buffer regulator aqueous solution; hydroxypropyl methyl cellulose ether 24g, mixed with 9kg deionized water to make aqueous dispersant solution;

[0055] (3) Put 5kg of deionized water in a 100L polymerization kettle (stainless steel polymerization kettle with stirring device, length-to-diameter ratio of 2:1, double-layer two-page 45° inclined paddle), seal the kettle for pressure test and vacuumize, and then add VDC monomer , VCM monomer and lauryl peroxide were dispersed at a speed of 130 rpm / min for 10 minutes, then an aqueous dispersant solution, an ...

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Abstract

The invention discloses a preparation method of a PVDC (polyvinyl dichloride) composition for spinning. The preparation method of the PVDC composition for the spinning comprises the following steps of carrying out a polymerization reaction on the following raw materials in parts by weight: 49 to 60 parts of deionized water, 20 to 30 parts of vinylidene chloride monomers, 3 to 9 parts of vinyl chloride monomers, 0.06 to 0.3 parts of initiator, 0.02 to 0.04 part of pH (potential of hydrogen) value buffer conditioning agent and 0.01 to 0.05 part of dispersing agent, after the reaction is carried out for 25 hours to 35 hours, terminating the polymerization reaction, separating out residual monomers in a vacuum manner, and cooling, discharging, centrifuging and drying an obtained material; adding 0.5 to 0.8 part of plasticizer and 0.05 to 0.2 part of lubricating agent into the dried material, and mixing and curing an obtained mixture, so as to obtain a PVDC composition product for the spinning. The PVDC composition prepared by the preparation method of the PVDC composition for the spinning has favorable heat stability and spinning processing performance.

Description

technical field [0001] The present invention relates to a preparation method of a PVDC composition, more specifically, the present invention relates to a preparation method of a PVDC composition for spinning. Background technique [0002] With the economic globalization and the change of people's life and aesthetic concept, wearing wigs has become a fashion. People have higher requirements for the quality and craftsmanship of wigs (color, feel, curl, bulk, heat resistance, flame retardancy, strength). The materials currently on the market for preparing artificial hair mainly include polyvinyl chloride (PVC)-based fibers, protein-based fibers, polyacrylonitrile (PAN)-based fibers, polyester-based fibers, and human hair. However, there are disadvantages in these products: PVC-based fibers have poor thermal stability and fluffy feeling, high thermal shrinkage rate, and are prone to yellowing; protein-based fibers have poor heat resistance; PAN-based fibers have poor thermal st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/08C08F214/08C08F214/06C08F2/00D01F6/48D01F1/10
CPCC08F214/08C08K2201/014C08L27/08C08L2201/08C08L2201/10C08L2205/025C08L2205/03D01F1/10D01F6/32C08F214/06C08L91/00C08K5/20C08K5/103C08K5/11C08K5/1515
Inventor 韩金铭吴宇鹏邓建明苏兰辉何坚华王正良吕颖琦林菊叶
Owner ZHEJIANG QUZHOU JUSU CHEM IND CO LTD
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