FRPP corrugated pipe being relatively high in low-temperature toughness

A low-temperature toughness and corrugated pipe technology, applied in the field of FRPP corrugated pipes, can solve the problems that the performance cannot meet the engineering design requirements and the brittleness increases.

Inactive Publication Date: 2015-07-29
GUIYANG XINGSU PIPE IND CO LTD
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

With the increasing application of FRPP bellows, the low-temperature brittleness of FRPP bellows gradually appears during use, and its brit

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0009] A kind of FRPP corrugated pipe with good low temperature toughness, made of the following components according to the mass ratio: PP raw material 20 Kg PE raw material 20Kg Low density polyethylene 15Kg Activated calcium powder 42Kg Black masterbatch 2Kg Defoamer 1Kg;

[0010] Then use a mixer to stir evenly, and adopt the prior art to process and extrude.

[0011] The chemical symbol of low-density polyethylene is LDPE; black masterbatch is a new type of special colorant for polymer materials, and the main function of the defoamer is to eliminate moisture in raw materials. Due to the molecular polymerization reaction of PE raw material and PP raw material, this FRPP corrugated pipe has changed the problem of low-temperature brittleness of raw materials and can meet product design requirements.

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Abstract

The invention discloses an FRPP corrugated pipe being relatively high in low-temperature toughness. The FRPP corrugated pipe is prepared from the following components by mass: 18-25 kg of PP raw materials, 18-25 kg of PE raw materials, 12-18 kg of low-density polyethylene, 40-45 kg of active calcium powder, 1-3 kg of black master batch and 1-3 kg of a defoaming agent. Such components are uniformly stirred by a blending machine, and the stirred components are processed for extrusion forming. The prepared FRPP corrugated pipe has the following advantages: the organization of the FRPP corrugated pipe is improved, the low temperature brittleness of the FRPP corrugated pipe can be effectively reduced, the probability that the FRPP corrugated pipe is easily damaged under low temperatures is 3% or lower, and the toughness of the FRPP corrugated pipe under low temperature environments is obviously improved.

Description

technical field [0001] The invention relates to an FRPP corrugated pipe, in particular to an FRPP corrugated pipe with better low-temperature toughness. Background technique [0002] FRPP corrugated pipe molded drainage pipe is an advanced formula, with polypropylene as the main raw material, through modified blending and polymerization, and molded with a unique molding process device; the reinforced FRPP pipe is not easily damaged by external pressure deformation, and can resist weathering. Uniform settlement, can be rotated at 2 degrees, and each section is 2 meters long, especially suitable for high groundwater levels, soft geology and complex areas of underground pipelines with serious uneven settlement, strong resistance to thermal expansion and contraction, easy recycling of damaged pipes, impact resistance , Corrosion resistance, good water tightness at the joint of the two pipes, no leakage, thick pipe wall, high hardness, and strong wear resistance. It can be widel...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/06C08K3/26C08J3/22
CPCC08L23/12C08J3/223C08J2323/12C08L23/06C08L2203/18C08L2205/025C08L2205/03C08L2207/066C08L2310/00C08K2003/265
Inventor 张朝阳袁欣
Owner GUIYANG XINGSU PIPE IND CO LTD
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