Supercharge Your Innovation With Domain-Expert AI Agents!

Environment-friendly PVC eraser with high finish and antibacterial function, and preparation process thereof

A preparation process, eraser technology, applied in the direction of eraser, printing, office supplies, etc., to achieve the effect of low wear, reduced wear loss, excellent hardness and puncture strength

Active Publication Date: 2019-03-15
LISHUI ZHUOYUE STATIONERY MFR
View PDF2 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The obtained eraser material is relatively soft, and the wiping property is better than that of natural rubber as a raw material, but it has some disadvantages in environmental protection

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Environment-friendly PVC eraser with high finish and antibacterial function, and preparation process thereof
  • Environment-friendly PVC eraser with high finish and antibacterial function, and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A kind of preparation technology of the environment-friendly PVC eraser with high light antibacterial function, concrete steps are as follows:

[0047] (1) dissolving polyvinyl alcohol with a degree of alcoholysis of 70 mol% in deionized water, then adding initiator and vinyl chloride monomer, uniformly dispersing and transferring to a polymerization kettle;

[0048] (2) Add a crosslinking agent and heat to 50°C for polymerization;

[0049] (3) When the conversion rate of vinyl chloride monomer reaches 42%, add silane coupling agent, hydroxypropyl methylcellulose, and sucrose polyester, and heat up to 75°C at a heating rate of 12°C / min for polymerization until chlorine The ethylene monomer conversion rate reaches 85%, the polymerization reaction is completed, the unreacted monomer is recovered, the obtained slurry is centrifuged and dried to obtain a modified polyvinyl chloride resin, which is used for future use;

[0050] (4) Add dioctyl terephthalate, paraffin oil, z...

Embodiment 2

[0066] A kind of preparation technology of the environment-friendly PVC eraser with high light antibacterial function, concrete steps are as follows:

[0067] (1) dissolving polyvinyl alcohol with a degree of alcoholysis of 72mol% in deionized water, then adding initiator and vinyl chloride monomer, uniformly dispersed and transferred to a polymerization kettle;

[0068] (2) Add a crosslinking agent and heat to 60°C for polymerization;

[0069] (3) When the conversion rate of vinyl chloride monomer reaches 46%, add silane coupling agent, hydroxypropyl methylcellulose, and sucrose polyester, and heat up to 75-80°C at a heating rate of 15°C / min for polymerization. Until the conversion rate of vinyl chloride monomer reaches 85%, the polymerization reaction is terminated, the unreacted monomer is recovered, and the obtained slurry is centrifuged and dried to obtain a modified polyvinyl chloride resin for future use;

[0070] (4) Add dioctyl terephthalate, paraffin oil, zinc stear...

Embodiment 3

[0086] A kind of preparation technology of the environment-friendly PVC eraser with high light antibacterial function, concrete steps are as follows:

[0087] (1) Dissolving polyvinyl alcohol with a degree of alcoholysis of 71mol% in deionized water, then adding initiator and vinyl chloride monomer, uniformly dispersed and transferred to a polymerization kettle;

[0088] (2) Add a crosslinking agent and heat to 55°C for polymerization;

[0089] (3) When the conversion rate of vinyl chloride monomer reaches 44%, add silane coupling agent, hydroxypropyl methylcellulose, and sucrose polyester, and heat up to 78°C at a heating rate of 13°C / min for polymerization until chlorine The ethylene monomer conversion rate reaches 85%, the polymerization reaction is completed, the unreacted monomer is recovered, the obtained slurry is centrifuged and dried to obtain a modified polyvinyl chloride resin, which is used for future use;

[0090] (4) Add dioctyl terephthalate, paraffin oil, zinc...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an environment-friendly PVC eraser with high finish and an antibacterial function, and a preparation process thereof. The environment-friendly PVC eraser is prepared from the raw materials of dioctyl terephthalate, paraffin oil, barium stearate, zinc stearate, calcium carbonate, modified talcum powder, polypropylene powder, modified polyvinyl chloride resin, a quaternary ammonium salt bactericide, a halamine bactericide, and the like. The raw material formula of the PVC eraser is improved, and residues of a plasticizer is avoided. The obtained eraser has the high finishand high decontamination and environment-friendly effects and has the antibacterial function.

Description

technical field [0001] The invention relates to an eraser, in particular to an environment-friendly PVC eraser with a high-gloss antibacterial function and a preparation process thereof. It belongs to the field of fine chemical technology. Background technique [0002] An eraser is a very common stationery used to erase erroneous handwriting. Common eraser is to be main raw material to make by natural rubber or soft polyvinyl chloride. [0003] The eraser with natural rubber as raw material is obtained by mixing natural rubber with calcium carbonate and sulfur, and then heating or hot pressing after extrusion. Gained eraser texture is harder, wiping property is poor, and the dirt of handwriting is easily attached on the eraser and affects the cleanliness of eraser; In addition, this kind of eraser is not easy to recycle because of vulcanization. [0004] The eraser with soft polyvinyl chloride as raw material is obtained by mixing PVC powder, dioctyl phthalate (DOP), calc...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C08L51/08C08L23/12C08L91/06C08K13/06C08K9/02C08K9/04C08K5/12C08K3/26C08K5/098C08K3/34C08K5/19C08K5/3445C08F283/06C08F214/06C08F222/26B43L19/00
CPCB43L19/00C08F283/065C08K2003/265C08K2201/014C08L51/08C08L2205/03C08F214/06C08F222/26C08L23/12C08L91/06C08K13/06C08K9/02C08K9/04C08K5/12C08K3/26C08K5/098C08K3/34C08K5/19C08K5/3445
Inventor 罗乐平
Owner LISHUI ZHUOYUE STATIONERY MFR
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com