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Low-temperature toughened PVC drainage pipe material, preparation method and application thereof

A drainage pipe and toughening technology, which is applied in the field of low-temperature toughened PVC drainage pipe material and its preparation, can solve the problems of low impact strength, hardening and brittleness, poor toughness, etc. good capacitive effect

Active Publication Date: 2014-11-05
HENAN LIANSU IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, PVC also has some defects or deficiencies in performance, among which brittleness is one of the biggest shortcomings of PVC plastics.
Rigid PVC plastics have poor toughness and low impact strength at room temperature, and even worse toughness at low temperatures. When the temperature is lowered, they rapidly harden and become brittle, and are easily brittle when impacted. Applications in Low Temperature Environments

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Use 100 parts by weight of nano-silica and 1.5 parts by weight of silane coupling agent KH-550 to stir evenly at 30°C to obtain a mixture for use; heat the obtained mixture to 50°C and perform solid phase stirring for 1min, then cool to room temperature to obtain Modified nano-silica; 100 parts by weight of modified nano-silica and 10 parts by weight of ABS are prepared by emulsion polymerization to form a core-shell structure composite modification with nano-silica as the core and ABS as the shell. The specific operation steps are: put the above-mentioned modified nano-silica in the reactor of the condensing device, add deionized water, stir evenly, then add emulsifier, ABS, heat to 80°C and stir to disperse Evenly, add a conventional initiator, react at 80°C for 2 hours, continue to stir, cool to room temperature after the reaction, and obtain composite modified particles with nano-silicon dioxide as the core and ABS as the shell.

[0024] Then 4 parts by weight of th...

Embodiment 2

[0027] Use 100 parts by weight of nano-silica and 2 parts by weight of silane coupling agent KH-550 to stir evenly at 50°C to obtain a mixture for use; heat the obtained mixture to 70°C and perform solid phase stirring for 4 minutes, then cool to room temperature to obtain Modified nano-silica; 100 parts by weight of modified nano-silica and 15 parts by weight of ABS are prepared by emulsion polymerization to form a core-shell structure composite modification with nano-silica as the core and ABS as the shell. The specific operation steps are: put the above-mentioned modified nano-silica in the reactor of the condensing device, add deionized water, stir evenly, then add emulsifier, ABS, heat to 85°C and stir to disperse Evenly, add a conventional initiator, react at a temperature of 85°C for 3 hours, continue to stir, and cool to room temperature after the reaction, and then obtain composite modified particles with nano-silicon dioxide as the core and ABS as the shell.

[0028]...

Embodiment 3

[0031] Use 100 parts by weight of nano-silica and 2.5 parts by weight of silane coupling agent KH-550 to stir evenly at 70°C to obtain a mixture for use; heat the obtained mixture to 90°C and perform solid phase stirring for 5 minutes, then cool to room temperature to obtain Modified nano-silica; 100 parts by weight of modified nano-silica and 20 parts by weight of ABS are prepared by emulsion polymerization to form a core-shell composite modification with nano-silica as the core and ABS as the shell. The specific operation steps are: put the above-mentioned modified nano-silica in the reactor of the condensing device, add deionized water, stir evenly, then add emulsifier and ABS, heat to 90°C and stir to disperse Evenly, add a conventional initiator, react at 90°C for 3 hours, continue to stir, cool to room temperature after the reaction, and obtain composite modified particles with nano-silicon dioxide as the core and ABS as the shell.

[0032] Then, 6 parts by weight of the...

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PUM

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Abstract

The invention relates to a low-temperature toughened PVC drainage pipe material, a preparation method and application thereof. The PVC drainage pipe material is prepared according to the following preparation method: taking nanometer silicon dioxide and acrylonitrile-butadiene-styrene copolymer as raw materials to prepare a compound modified particle with a core-shell structure through an emulsion polymerization method; and then blending the compound modified particle with PVC through melt, so as to prepare a ternary nanometer compound material. By selecting a specific nanometer particle to organically combine with an elastomer, the core-shell structural compound modified particle taking nanometer silicon dioxide as a core and ABS as a shell is formed, and then the compound modified particle and PVC resin are subjected to melt blending, so that the compound modified particles are well dispersed in PVC matrix and give play to toughening reinforcing modification effect on PVC.

Description

technical field [0001] The invention relates to the technical field of plastic pipes, in particular to a low-temperature toughened PVC drainage pipe material and a preparation method and application thereof. Background technique [0002] The raw material polyvinyl chloride (PVC) used in PVC-U drainage pipe is a general-purpose plastic variety with excellent comprehensive performance, low price and wide source of raw materials. Its output and consumption are second only to polyethylene, and it has been widely used in various fields. However, PVC also has some defects or deficiencies in performance, among which brittleness is one of the biggest shortcomings of PVC plastics. Rigid PVC plastics have poor toughness and low impact strength at room temperature, and even worse toughness at low temperatures. When the temperature is lowered, they rapidly harden and become brittle, and are easily brittle when impacted. applications in low temperature environments. Therefore, improvin...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L55/02C08K9/10C08K3/36
Inventor 代营伟李锦松
Owner HENAN LIANSU IND
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