A modified pvc non-excavation special communication pipe for buried and its preparation method

A special communication and non-excavation technology, which is applied in the field of buried modified PVC non-excavation special communication pipe and its preparation, can solve the problems of brittleness and impact on service life, etc., and achieve extended service life and long-term strength impact The effect of reducing the size and improving the overall performance

Active Publication Date: 2016-07-06
福建晟扬管道科技有限公司
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For example, PVC pipes, compared with PE pipes, have better tensile and compressive strength, excellent corrosion resistance and lower price, and are suitable as communication pipes, but they are prone to brittleness during use, which affects their use. life

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
  • A modified pvc non-excavation special communication pipe for buried and its preparation method
  • A modified pvc non-excavation special communication pipe for buried and its preparation method
  • A modified pvc non-excavation special communication pipe for buried and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A modified PVC non-excavation dedicated communication pipe for buried use, which weighs raw materials (unit: part) according to the following formula:

[0023]

[0024] Wherein, the toughening agent contains 2 parts of CPE, 10 parts of MBS, 2 parts of ABS, 1 part of ACR; the lubricant contains 3 parts of PEWAX, 2 parts of HST; the filler contains 3 parts of SiO 2 and 5 parts CaCO 3 .

[0025] The method for preparing the above-mentioned modified PVC non-excavation special communication pipe for buried use comprises the following steps:

[0026] 1) Material mixing: Mix PVC resin powder, stabilizer, toughener, lubricant, toner and PMMA in proportion, control the system temperature at 120°C and stir at high speed for 2.5 minutes, then add filler, control the system temperature at 39°C Continue stirring at low temperature for 3 minutes.

[0027] 2) Extrusion molding: extrude the mixed material through an extruder.

Embodiment 2～6

[0029] Using the same raw materials and preparation method as in Example 1, the difference is that the addition amount of different components listed in Table 1, the reaction temperature in the preparation step 1, and the reaction time are used to replace the corresponding numerical values ​​adopted in Example 1 , wherein the parts of CPE, MBS, ABS and ACR in the toughening agent are the total parts of the toughening agent distributed according to the weight ratio of 2:10:2:1, and the parts of PEWAX and HST in the lubricant are the total parts of the lubricant The number is distributed according to the weight ratio of 3:2; the SiO in the filler 2 and CaCO 3 The number of parts is the total number of fillers distributed in a weight ratio of 3:5.

[0030] Table 1

[0031]

[0032] In the embodiment, the degree of polymerization of the PVC resin powder is not limited, and the type of PVC resin powder with a degree of polymerization of 1200 is the best.

[0033] The various ...

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 underground modified PVC special-purpose non-excavation communication pipe and a preparation method thereof. The preparation method is as follows: mixing PVC resin powder, a stabilizer, a plasticizer, a lubricant, toner and a compatilizer according to a proportion, stirring for 2-3 minutes at a high speed at 120-130 DEG C, then, adding a filling agent, controlling a system temperature to be lower than 40 DEG C for continuously stirring for 3-5 minutes at a low temperature, and extruding and molding by an extruder. According to the underground modified PVC special-purpose non-excavation communication pipe disclosed by the invention, pipe breakage sensibility is lowered while toughness is improved, so that the pipe is not easy to break or breakage degree of the pipe is greatly lowered, therefore, long-term strength influence is reduced, service life of the communication pipe is prolonged, comprehensive performances of the product are improved, and market prospect is wide.

Description

technical field [0001] The invention relates to the field of PVC pipe materials, in particular to a modified PVC non-excavation special communication pipe for buried ground and a preparation method thereof. Background technique [0002] Since trenchless construction technology lays, detects, repairs and updates various underground pipelines without excavating (or less excavating) the surface, it solves the problems in urban pipeline construction and reduces the cost of construction under highly developed conditions. Due to the difficulty of underground pipeline construction, it has been widely used in engineering construction, and a variety of trenchless engineering special pipes have emerged as the times require. [0003] For example, PVC pipes, compared with PE pipes, have better tensile and compressive strength, excellent corrosion resistance and lower price, and are suitable as communication pipes, but they are prone to brittleness during use, which affects their use. l...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08L23/28C08L33/12C08L55/02C08L33/08C08L23/06C08K13/02C08K3/36C08K3/26C08K5/09B29C47/92B29C48/92
CPCB29B7/72B29B7/90B29C48/09B29C48/92B29C2948/92647
Inventor 何承枫郑昆雄何龙新林振宇郑昆景
Owner 福建晟扬管道科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap