CN102675769A - High-strength PVC (Poly Vinyl Chloride) pipe - Google Patents

Abstract

The invention relates to a high-strength PVC (Poly Vinyl Chloride) pipe. The existing PVC pipe is poor in surface hardness and tensile strength, is short in service life and is not adapted to severe environment. The high-strength PVC pipe is characterized by comprising the following raw materials in parts by weight: 100-110 parts of resins, 2.0-4.0 parts of stabilizing agents, 20-25 parts of light calcium powder, 0.2-0.35 parts of stearic acid, 1..0-3.0 parts of PE wax, 1.0-2.0 parts of titanium dioxide and 1.0-2.0 parts of ACR. The high-strength PVC pipe provided by the invention has the advantages that the surface hardness and tensile strength of the pipe are excellent, the safety factor of the pipe is high, the ageing resistance is excellent and the normal service life is above 50 years.

Description

A kind of high-intensity pvc pipe material

Technical field

The present invention relates to plastic cement pipe technology field, especially a kind of high-intensity pvc pipe material.

Background technology

The staple of pvc pipe material is a SE, adds other one-tenth in addition and assigns to strengthen its thermotolerance, toughness, ductility etc.The pvc pipe material is a kind of sophisticated tubing, is mainly used in water supply and sewage work.Its surface hardness of existing P VC tubing and tensile strength are relatively poor, and work-ing life is short, and the incompatibility severe environment are used.

Summary of the invention

The present invention is directed to the defective that prior art exists, a kind of high-intensity pvc pipe material is provided, have stronger hardness and tensile strength, long service life is fit to use in the severe environment.

For this reason, the present invention takes following technical scheme: a kind of high-intensity pvc pipe material is characterized in that the raw material composition of described pvc pipe material is counted with weight part:

Resin is 100～110,

Stablizer 2.0～4.0,

Light calcium carbonate powder 20～25,

Triple Pressed Stearic Acid 0.2～0.35,

PE wax 1.0～3.0,

White titanium pigment 1.0～2.0,

ACR 1.0～2.0。

As preferred version, the raw material of pvc pipe material composition is counted with weight part:

Resin is 100,

Stablizer 3.0,

Light calcium carbonate powder 20,

Triple Pressed Stearic Acid 0.3,

PE wax 1.0,

White titanium pigment 1.0,

ACR 1.5。

Pvc pipe material of the present invention has the following advantages:

1, tube surfaces hardness and tensile strength are good, and the pipe safety coefficient is high;

2, resistance to deterioration is good, and can reach more than 50 years normal work-ing life;

3, pipeline is applicable to discharge of industrial wastes discharging and conveying to mineral acid, alkali, salt fine corrosion resistance;

4, pipe friction factor is little, and current are smooth and easy, is difficult for stopping up, and maintenance is easy;

5, the material oxygen index is high, belongs to the B2 flame resistant material, has self-extinguishing;

6, the pipe line coefficient of expansion is little, is about 0.07mm/m.oc, and the temperature influence deflection is little, and thermal conductivity and Young's modulus are little, and anti-freezing performance is strong.

Embodiment

Through embodiment, do further bright specifically below to technical scheme of the present invention.

The recipe ingredient of specific embodiment and weight part are seen shown in table one:

Table one

	Embodiment 1	Embodiment 2	Embodiment 3
				Resin	110	100	105
Stablizer	4.0	3.0	2.0
				Light calcium carbonate powder	20	20	25
Triple Pressed Stearic Acid	0.2	0.3	0.35
				PE wax	1.5	1.0	3.0
White titanium pigment	1.0	1.0	1.5
				ACR	1.0	1.5	2.0

Above-mentioned batching is carried out that heat is mixed, processed the pvc pipe material through extrusion moulding again after cold the mixing.

Its performance of the tubing that each embodiment makes is shown in table two:

Table two

Performance	Embodiment 1	Embodiment 2	Embodiment 3
				Tensile strength (MPa)	49.5	57.3	53.3
Shock strength (KJ/m2)	8.45	9.12	8.53
				Flexural strength (MPa)	68.4	63.2	72.2
Modulus in flexure (MPa)	2554	2218	2412

Parameter can be found out from table two, and its surface hardness of pvc pipe material and tensile strength that embodiment 2 prescriptions make are good, and the pipe safety coefficient is high.

What need particularly point out is; The mode of the foregoing description only limits to describe embodiment; But the present invention is confined to aforesaid way incessantly; And those skilled in the art can modify in not departing from the scope of the present invention in view of the above easily, and therefore scope of the present invention should comprise the disclosed principle and the maximum range of new feature.

Claims (2)

1. high-intensity pvc pipe material, the raw material that it is characterized in that described pvc pipe material are formed and are counted with weight part:

Resin is 100～110,

Stablizer 2.0～4.0,

Light calcium carbonate powder 20～25,

Triple Pressed Stearic Acid 0.2～0.35,

PE wax 1.0～3.0,

White titanium pigment 1.0～2.0,

ACR 1.0～2.0。

2. high-intensity pvc pipe material according to claim 1 is characterized in that the raw material composition of described pvc pipe material is counted with weight part:

Resin is 100,

Stablizer 3.0,

Light calcium carbonate powder 20,

Triple Pressed Stearic Acid 0.3,

PE wax 1.0,

White titanium pigment 1.0,

ACR 15。