Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for producing polyformaldehyde-thermoplastic rubber block copolymer

A technology of block copolymer and production method, which is applied in the field of plastic production, can solve the problems of low temperature resistance, use limitation, cracking, etc., and achieve the effect of improving low temperature resistance, improving the characteristics, and expanding the scope of application

Inactive Publication Date: 2018-05-01
昆山台益塑胶科技有限公司
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, products made of POM (polyoxymethylene resin) have the problem of not being resistant to low temperature, and the material often cracks at an ambient temperature of -40°C, resulting in limitations in use

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
  • Method for producing polyformaldehyde-thermoplastic rubber block copolymer
  • Method for producing polyformaldehyde-thermoplastic rubber block copolymer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A kind of polyoxymethylene-thermoplastic rubber block copolymer production method, comprises the steps:

[0018] S1: POM resin particles are put into the first extruder, and thermoplastic rubber particles are put into the second extruder at the same time; the first extruder is sequentially equipped with processing zone 1, processing zone 2, and processing zone 3 Zone, processing zone 4, processing zone 5, processing zone 6, processing zone 7, processing zone 8, processing zone 9, processing zone 10 and processing zone 11; Pellets are conveyed sequentially from process zone 1 located in the first extruder through process zone 2, process zone 3 and process 4 to process zone 5; heat process zone 1 to 165°C, process zone 2 to 175 ℃, heat up to 175°C in the processing zone 3, and heat up to 185°C in the processing zone 4; the polyoxymethylene resin particles are heated to form a polyoxymethylene resin hot melt during the process of being transported from the processing zone ...

Embodiment 2

[0020] Embodiment 2: The difference between embodiment 2 and embodiment 1 is that in this example, the mass ratio of polyoxymethylene resin particles and thermoplastic rubber particles in step S1 is 90:10. The feed rate ratio of the first extruder and the second extruder is 3:2.

Embodiment 3

[0021] Embodiment 3: The difference between embodiment 3 and embodiment 1 is that in this example, the mass ratio of polyoxymethylene resin particles and thermoplastic rubber particles in step S1 is 65:35. The feed rate ratio of the first extruder and the second extruder was adjusted to 1:1.

[0022] Compared with the products produced by the existing technology, the test data of the low temperature resistance characteristics generated by the above technical scheme are compared as follows:

[0023]

[0024] Apparently, the polyoxymethylene-thermoplastic rubber block copolymer has significantly improved low-temperature resistance characteristics compared with traditional polyoxymethylene resin materials. In particular, the polyoxymethylene-thermoplastic rubber copolymer prepared in Example 2 has extremely high low temperature resistance and can be used in extremely cold special outdoor working environments.

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 a method for producing a polyformaldehyde-thermoplastic rubber block copolymer. The method comprises the steps: S1: putting polyformaldehyde and thermoplastic rubber granules into a first extruder and a second extruder separately; S2: subjecting polyformaldehyde resin granules to heating to form polyformaldehyde resin heat melt; and meanwhile, subjecting the thermoplastic rubber granules to heating to form thermoplastic rubber liquid; S3: opening a circulating air port for exhausting, meanwhile, conveying the thermoplastic rubber liquid to a processing area 8 by the second extruder, and mixing the thermoplastic rubber liquid with the polyformaldehyde resin liquid; S4: subjecting the thermoplastic rubber liquid and the polyformaldehyde resin heat melt to a hot-melt block copolymerization reaction, so as to produce a polyformaldehyde-thermoplastic rubber block copolymer solution; S5: carrying out cooling molding, so as to obtain a polyformaldehyde-thermoplastic rubber block copolymer cake; and S6: cutting the cake into granules, and carrying out packaging and transporting. According to the polyformaldehyde-thermoplastic rubber block copolymer, prepared by themethod, the primary characteristics of polyformaldehyde materials are retained, meanwhile, the low-temperature resistance is greatly improved, and the range of application of the materials is extended.

Description

technical field [0001] The invention belongs to the field of plastic production, and relates to high-performance plastic modification technology, in particular to a production method of polyoxymethylene-thermoplastic rubber block copolymer. Background technique [0002] At present, in order to recycle waste plastics and waste plastic bags and re-produce them into plastics, plastic extruders are generally used for processing. In the prior art, different plastic materials must be thermally processed at different temperature ranges due to their inherent heat-bearing properties. Among them, products made of POM (polyoxymethylene resin) have the problem of not being resistant to low temperature, and the material often cracks at an ambient temperature of -40°C, resulting in limitations in use. Therefore, how to use TPV (thermoplastic vulcanizate) to carry out copolymerization modification on traditional polyoxymethylene resin plastics to produce a kind of polyoxymethylene-therm...

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): C08G81/00C08G81/02C08L87/00B29B9/06B29C47/92B29C48/92
CPCB29B9/06B29C48/92B29C2948/92704C08G81/00C08G81/024C08L87/00
Inventor 高道峰
Owner 昆山台益塑胶科技有限公司
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