Material special for PVC-M feed pipe member and production method thereof

A technology for water supply pipe fittings and special materials, which is applied in the field of special materials for PVC-M water supply pipe fittings and its preparation, can solve the problems of insignificant impact resistance and the like, and achieve the effects of good forming processability, good thermal stability and good toughness.

Inactive Publication Date: 2009-08-19
JIANGSU HUASHENG PLASTIC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods of separate modification do not improve the impact performance significantly, and the impact strength (notch) generally can only reach 4-8KJ / m 2

Method used

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  • Material special for PVC-M feed pipe member and production method thereof
  • Material special for PVC-M feed pipe member and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The special material for PVC-M water supply pipe fittings of this embodiment includes 75kg of S-700 type PVC resin, 5.6kg of MBS, 2.2kg of butyltin maleate, 2.1kg of polyethylene wax, 4.2kg of methyl acrylate, 0.3kg Titanium dioxide and 4.5kg of calcium carbonate treated with a silica gel coupling agent.

[0024] The preparation method of the PVC-M special material for water supply pipe fittings of the present embodiment is:

[0025] ① Weigh 75kg of S-700 PVC resin, 5.6kg of MBS, 2.2kg of butyltin maleate, 2.1kg of polyethylene wax, 4.2kg of methyl acrylate, and 0.3kg of titanium dioxide for use;

[0026] ②Pour 4kg of calcium carbonate and 0.5kg of silica gel coupling agent into a high-speed mixer and mix at a temperature of 130°C for 8 minutes, then discharge and cool for use;

[0027] ③Pour S-700 type PVC resin into a high-speed kneader and mix to 90°C, then pour butyltin maleate into a high-speed mixer and continue mixing, then add MBS, polyethylene wax, methyl acry...

Embodiment 2

[0030] The special material for PVC-M water supply pipe fittings of this embodiment includes 75kg of S-700 type PVC resin, 6.5kg of CPE, 2.5kg of tin mercaptide, 2.0kg of stearic acid, 1.5kg of butyl acrylate, 0.4 kg of titanium dioxide and 3 kg of calcium carbonate treated with a silica gel coupling agent, wherein the silica gel coupling agent is 0.3 kg.

[0031] The preparation method is basically the same as in Example 1, and the performance tests are shown in Table 1 and Table 2.

Embodiment 3

[0033] The special material for PVC-M water supply pipe fittings of this embodiment includes 75kg of S-800 type PVC resin, 7.0kg of MBS, 2.2kg of tin mercaptide, 1kg of stearic acid, 1.3kg of polyethylene wax, 2.0kg Methyl acrylate and 5.0kg of calcium carbonate treated with a silica gel coupling agent, wherein the silica gel coupling agent is 0.5kg.

[0034] The preparation method is basically the same as in Example 1, and the performance tests are shown in Table 1 and Table 2.

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Abstract

The invention discloses a special material for a PVC-M water supply pipe and a preparation method thereof. The special material comprises the components by part by weight as follows: 75 parts of PVC resin, 2.7-8.5 parts of toughener, 1.6-2.8 parts of heat stabilizer, 1.2-2.8 parts of lubricant, 3-10 parts of filling agent and 1.2-4.3 parts of processing material. The filling agent is calcium carbonate processed by silica gel coupling agent. The preparation method comprises the steps as follows: (1) all materials are weighed for using according to the prescription; (2) the calcium carbonate which is processed by the silica gel coupling agent is prepared; (3) the PVC resin is poured into a high-speed kneader to be mixed firstly, the heat stabilizer is poured into the high-speed kneader to be mixed continuously, subsequently, other materials are poured into the high-speed kneader to be mixed continuously, and the materials are discharged to be stirred and cooled; and (4) the materials are sent into a double-screw extruder to be melted and extruded to be granulated. The PVC-M water supply pipe made from the special material for the PVC-M water supply pipe has good toughness and high shock strength.

Description

technical field [0001] The invention relates to a polymer composite material and a preparation method thereof, in particular to a PVC-M special material for water supply pipe fittings and a preparation method thereof. Background technique [0002] UPVC (or PVC-U) pipe is currently the most commonly used plastic water supply pipe, which has the advantages of light weight, corrosion resistance, small water flow resistance, convenient construction and installation, low maintenance energy consumption, and low price. However, UPVC pipe fittings are brittle and have poor cracking and impact resistance. [0003] There are usually two forms of damage to plastic pipes, one is ductile failure and the other is brittle failure. Ductile failure refers to the accompanying plastic deformation or local spherical expansion when the sample ruptures, and brittle failure refers to the absence of obvious material deformation of the sample in the rupture area, such as: extension, necking, etc. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L53/02C08L25/14C08L23/28C08K9/06C08K3/26
Inventor 周健仲建忠
Owner JIANGSU HUASHENG PLASTIC
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