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Rigidity enhanced, modified dedicated material of plastic pipe material

A technology of plastic pipes and special materials, applied in the direction of pipes, rigid pipes, pipes/pipe joints/fittings, etc., can solve the problems of low rigidity of large plastic pipes, no promotion and use, easy deformation, etc., and achieve obvious economic benefits and Social benefits, improving impact strength and appearance, and reducing viscosity

Inactive Publication Date: 2007-05-09
辽宁艾海滑石有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the mechanical properties of plastic pipes cannot meet people's requirements, the ring stiffness of large plastic pipes is low, easy to deform, or even break, which brings inconvenience in the practical application of urban construction. Some manufacturers add liquid crystal molecular materials to change their rigidity and toughness. , but due to its high cost, it has not been promoted and used

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The special material for plastic pipe reinforcement and modification is characterized in that it is made of the following components in proportion by weight:

[0030] Superfine talcum powder 25 parts by weight

[0031] Toughener 12 parts by weight

[0032] 1 part by weight of coupling agent

[0033] Plasticizer 5 parts by weight

[0034] Dispersant 3 parts by weight

[0035] 52 parts by weight of high-density polyethylene

[0036] The ultra-fine talcum powder is selected from talcum powder with a particle size of 8-10 microns and a silicon content of 50-70%;

[0037] The toughening agent is made by blending and modifying ethylene-propylene rubber (EPR) and metallocene linear polyethylene (MLLDPE), wherein 2% to 3% of ethylene-propylene rubber (EPR) and metallocene linear polyethylene ( MLLDPE) 3% to 10% blending;

[0038] Described coupling agent selects solid aluminate coupling agent for use;

[0039] Described plasticizer selects stearic acid for use;

[0040]...

Embodiment 2

[0044] The special material for plastic pipe reinforcement and modification is characterized in that it is made of the following components in proportion by weight:

[0045] 20 parts by weight of superfine talcum powder

[0046] Toughener 10 parts by weight

[0047] 1 part by weight of coupling agent

[0048] Plasticizer 6 parts by weight

[0049] Dispersant 4 parts by weight

[0050] 50 parts by weight of high-density polyethylene

[0051] The ultra-fine talcum powder is selected from talcum powder with a particle size of 8-10 microns and a silicon content of 50-70%;

[0052] Described toughening agent selects and adopts POE elastomer, commercially available product;

[0053] Described coupling agent selects solid aluminate coupling agent for use;

[0054] Described plasticizer selects white oil for use;

[0055] Described dispersant selects the polyethylene wax of average molecular weight at 3000-5000 for use;

[0056] The high-density polyethylene is a commercially ...

Embodiment 3

[0059] The special material for plastic pipe reinforcement and modification is characterized in that it is made of the following components in proportion by weight:

[0060] 30 parts by weight of superfine talcum powder

[0061] Toughener 15 parts by weight

[0062] 2 parts by weight of coupling agent

[0063] Plasticizer 8 parts by weight

[0064] Dispersant 5 parts by weight

[0065] 55 parts by weight of high-density polyethylene

[0066] The ultra-fine talcum powder is selected from talcum powder with a particle size of 8-10 microns and a silicon content of 50-70%;

[0067] The toughening agent is made by blending and modifying ethylene-propylene rubber (EPR) and metallocene linear polyethylene (MLLDPE), wherein 2% to 3% of ethylene-propylene rubber (EPR) and metallocene linear polyethylene ( MLLDPE) 3% to 10% blending; the coupling agent is a solid aluminate coupling agent;

[0068] Described plasticizer selects stearic acid for use;

[0069] Described dispersant sel...

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Abstract

This invention relates to a specific modification material for increasing the rigidity of plastic pipes. The specific modification material is composed of: ultra-fine talcum powder 20-30 parts, toughening agent 10-15 parts, coupling agent 1-2 parts, plasticizer 5-8 parts, dispersant 3-5 parts, and high density polyethylene (HDPE) 50-55 parts. Plastic pipes modified with the specific modification material have rigidity 5-6% higher than that of neat HDPE pipes, thus can solve the problems of easy deformation, large influence to ground smoothness and easy breakage of HDPE pipes. Besides, plastic pipes modified with the specific modification material have improved impact strength and physical properties. Talcum powder can partly replace synthetic resin to reduce the cost.

Description

technical field [0001] The invention relates to a special material for rigidity modification of large polyethylene pipes and a preparation process thereof, which is widely used in urban water supply and drainage, liquid transportation and the like. Background technique [0002] At present, domestic urban drainage systems gradually adopt plastic pipes instead of cement pipes. Plastic pipes are smooth, flat, small in resistance, leak-proof, light in weight, easy to construct, resistant to chemicals, good in corrosion resistance, and long in life, and are well received by people. welcome. Because the mechanical properties of plastic pipes cannot meet people's requirements, the ring stiffness of large plastic pipes is low, easy to deform, and even break, which brings inconvenience in the practical application of urban construction. Some manufacturers add liquid crystal molecular materials to change their rigidity and toughness. , but due to its h...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08K5/56F16L9/12C08L23/16C08K3/36C08K5/09
Inventor 齐颖徐同考
Owner 辽宁艾海滑石有限公司
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