High-toughness PVC drainage-pipe material, and preparation method and application thereof

A drainpipe and high-toughness technology, applied in the field of high-toughness PVC drainpipe material and its preparation, can solve the problems of low impact strength, hardening and brittleness, and brittleness, 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-calcium carbonate and 6 parts by weight of titanate coupling agent NDZ-101 to stir evenly at 30°C to obtain a mixture for later use; heat the obtained mixture to 50°C and perform solid-phase stirring for 1min, then cool to room temperature. Obtain modified nano-calcium carbonate; 100 parts by weight of modified nano-calcium carbonate and 10 parts by weight of CPE are used for emulsion polymerization to prepare composite modified particles with a core-shell structure with nano-calcium carbonate as the core and CPE as the shell. The specific operation steps are: put the above-mentioned modified nano-calcium carbonate in the reactor of the condensing device, add deionized water, stir evenly, then add emulsifier, CPE, heat to 80°C and stir to disperse evenly, add conventional Initiator, react at 80°C for 2 hours, keep stirring, and cool to room temperature after the reaction, to obtain composite modified particles with nano-calcium carbonate a...

Embodiment 2

[0027] Use 100 parts by weight of nano-calcium carbonate and 8 parts by weight of titanate coupling agent NDZ-101 to stir evenly at 50°C to obtain a mixture for later use; heat the obtained mixture to 70°C and perform solid-phase stirring for 4 minutes, then cool to room temperature. Modified nano-calcium carbonate is obtained; 100 parts by weight of modified nano-calcium carbonate and 15 parts by weight of CPE are used for emulsion polymerization to prepare composite modified particles with a core-shell structure with nano-calcium carbonate as the core and CPE as the shell. , the specific operation steps are: put the above-mentioned modified nano-calcium carbonate in the reactor of the condensing device, add deionized water, stir evenly, then add emulsifier, CPE, heat to 85°C and stir to disperse evenly, add Conventional initiator, react at 85°C for 3 hours, keep stirring, and cool to room temperature after the reaction, to obtain composite modified particles with nano-calcium...

Embodiment 3

[0031] Use 100 parts by weight of nano-calcium carbonate and 10 parts by weight of titanate coupling agent NDZ-101 to stir evenly at 100°C to obtain a mixture for use; heat the obtained mixture to 100°C and perform solid phase stirring for 8 minutes, and then cool to room temperature. Obtain modified nano-calcium carbonate; 100 parts by weight of modified nano-calcium carbonate and 20 parts by weight of CPE are used for emulsion polymerization to prepare composite modified particles with a core-shell structure with nano-calcium carbonate as the core and CPE as the shell. , the specific operation steps are: put the above-mentioned modified nano-calcium carbonate in the reactor of the condensing device, add deionized water, stir evenly, then add emulsifier, CPE, heat to 90°C and stir to disperse evenly, add Conventional initiator, react at 90°C for 3 hours, keep stirring, and cool to room temperature after the reaction, to obtain composite modified particles with nano-calcium car...

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PUM

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Abstract

The invention relates to a high-toughness PVC drainage-pipe material, and a preparation method and application thereof. The PVC drainage-pipe material is prepared according to the following preparation method: taking nanometer calcium carbonate and chlorinated polyethylene as raw materials to prepare a compound modified particle with a core-shell structure through an emulsion polymerization method; and blending the compound modified particle with PVC through melting, 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 calcium carbonate as a core and CPE as a shell, 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 high-toughness PVC drainage pipe material and its preparation method and application. 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, improving the low tempera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L23/28C08K9/10C08K3/26
Inventor 代营伟马家峰代卫东
Owner HENAN LIANSU IND
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