CN103524972B

CN103524972B - Weather-resistant colored composite PVC (Polyvinyl Chloride) pipe

Info

Publication number: CN103524972B
Application number: CN201310488814.XA
Authority: CN
Inventors: 姜通均; 李贤梅; 付志敏
Original assignee: GOODY TECHNOLOGY Co Ltd; GUDI PLASTIC ELECTRIC APPLIANCE CO Ltd CHONGQING
Current assignee: GOODY TECHNOLOGY Co Ltd; GUDI PLASTIC ELECTRIC APPLIANCE CO Ltd CHONGQING
Priority date: 2013-10-17
Filing date: 2013-10-17
Publication date: 2015-06-10
Anticipated expiration: 2033-10-17
Also published as: CN103524972A

Abstract

The invention provides a weather-resistant colored composite PVC (Polyvinyl Chloride) pipe. The weather-resistant colored composite PVC pipe comprises an outer layer 3 and a core layer 2 which are subjected to co-extrusion, wherein the core layer 2 is a PVC layer; the outer layer 3 is a modified ASA (Acrylonitrile Styrene Acrylate) resin layer which is made from acrylonitrile, styrene and acrylate grafted copolymer, stearic acid, a fatty acid ester lubricating agent, calcium stearate, pigment, an antioxidant, an ultraviolet-resistant absorbing agent, an outer lubricating agent, a filling agent and a plastic modifying agent; the PVC pipe is made from polyvinyl chloride resin, a calcium-zinc stabilizing agent, modified barium sulfate, ACR (Acrylicester) resin, chlorinated polyethylene, stearic acid, polyethylene wax and a fatty acid ester lubricating agent and the like. The composite PVC pipe provided by the invention has the advantages that the weather resistance is excellent, the color is diversified and the sound-insulating effect is good.

Description

Weather resisting colorful composite PVC pipe

Technical field

The present invention relates to a kind of pvc pipe, particularly a kind of have weather resistance excellence, colored various composite PVC pipe.

Background technology

Pvc pipe is a kind of traditional tubing, is mainly used in city rainwater drainage, the discharge of indoor sanitary sewage.ASA resin, the ternary graft copolymer be made up of vinyl cyanide, vinylbenzene and acrylate.Its mechanical property, processing characteristics, electrical insulating property, chemical resistance are similar to ABS.But owing to introducing not double bond containing acrylic elastomer, ASA weathering resistance has had essential improvement, even if be exposed to outdoor ultraviolet, humidity for a long time, drench with rain, under illumination and ozone condition, physical property also can be kept to stablize without application.

Traditional PVC is white, variable color easily occurs under uviolizing aging, affects tubing work-ing life.In China's High Altitude in West China area, ultraviolet content is high, urgent to the demand of anti-ultraviolet weather-proof tubing.For solving common PVC pipe weathering resistance difference problem under ultraviolet light, some producers have employed a large amount of method of adding weather-proof titanium dioxide, although this method can the weathering resistance of Reinforced PVC pipe, but titanium dioxide is expensive, a large amount of use certainly will increase production cost, in addition, after a large amount of interpolation titanium dioxide, tubing is white, cannot meet the diversified demand of user.

Summary of the invention

In view of this, the composite PVC pipe providing a kind of weather resistance excellence, color various of the present invention.

The invention discloses a kind of weather resisting colorful pvc pipe, comprise the skin through coextru-lamination and sandwich layer, described sandwich layer is layer of PVC, and described skin is modified ASA resin layer, and described modified ASA resin is composed of the following components by weight:

Further, described external lubricant is polyethylene wax, paraffin, synthetic wax or Microcrystalline Wax.

Further, described plastic modifier is ACR resin, MBS resin, chlorinatedpolyethylene or acrylic elastomer.

Further, described weighting agent is superfine light calcium carbonate, Namigai, ultrafine heavy calcium or polynite.

The skin of composite PVC pipe of the present invention adopts ASA material modified, and this modified ASA material makes multiple-unit tube have weathering resistance and multicolour.

One as this programme is improved, and described sandwich layer is modified PVC layer, and described modified PVC is composed of the following components by weight:

Further, described modified barium sulphate is composed of the following components by mass:

Barium sulfate 90-100 part;

Coupling agent 0.5-2.0 part;

Stearic acid 0.3-2.0 part.

Further, described coupling agent is metatitanic acid fat, Aluminate, boric acid fat or organosilane.

Composite PVC pipe of the present invention with the addition of modified barium sulphate in sandwich layer, makes composite PVC pipe have good soundproof effect, and the modified barium sulphate of the present invention's interpolation is with low cost in addition, is conducive to cost-saving.

Another kind as this programme improves, and described fatty acid ester lubricant is saturated fatty alcohol dicarboxylic acid fat.

As the improvement of above scheme, also have internal layer in described sandwich layer, described internal layer is identical with outer field composition, and described internal layer, sandwich layer and skin are through coextru-lamination.

Internal layer is set in composite PVC die layer of the present invention, pipe material inner wall smooth finish can be increased, reduce frictional coefficient, make current more unobstructed.

As the improvement of above scheme, the thickness >=1.6mm of described sandwich layer, described outer field thickness≤0.2mm

Composite PVC pipe of the present invention, by reasonably selecting sandwich layer and outer field size, makes the mute function of modified PVC pipe better mate with outer weather resisting colorful function.

Accompanying drawing explanation

Fig. 1 is weather resisting colorful composite PVC pipe cross sectional representation of the present invention, and in figure, 1 is ASA modification internal layer, and 2 is PVC sound insulation sandwich layer, and 3 is that ASA modification is outer.

Embodiment

The present invention will be further described to use embodiment below, and Fig. 1 is weather resisting colorful composite PVC pipe cross sectional representation of the present invention, and the composite PVC pipe in figure is divided into three layers, and wherein 1 is ASA modification internal layer, and 2 is PVC sound insulation sandwich layer, and 3 is that ASA modification is outer.Certainly, according to actual needs, weather resisting colorful composite PVC pipe of the present invention also can only include PVC sound insulation sandwich layer 2 and ASA modification skin 3.Tubing prepared by following examples includes ASA modification internal layer 1, PVC sound insulation sandwich layer 2 core and ASA modification skin 3, and its specification is dn110x3.2mm, and dn is tubing nominal outside diameter size, and the following stated number is weight part.

Embodiment 1

The present embodiment prepares the method for weather resisting colorful composite PVC pipe, comprise the following steps: 1, modified barium sulphate preparation: the barium sulfate powder first choosing 100 parts of particle diameter≤3.0 μm, then by selected powder in mixing machine special premix to 80-85 DEG C, then in premix powder, 1 part of coupling agent (titanic acid ester TC-130) is added, 1 part of stearic acid (HST) height mixes 110-120 DEG C, last cold mixing to temperature obtains modified barium sulphate lower than blowing when 50 DEG C; 2, PVC sandwich layer and the granulation of ASA ectonexine batch mixing: obtained by step 1 according to modified barium sulphate in table 1(table 1 respectively) and table 2 choose the starting material of PVC sandwich layer and ASA ectonexine, then selected starting material are distinguished batch mixing granulation; 3, coextru-lamination: by main frame and co-extrusion subsidiary engine co-extrusion PVC sandwich layer and ASA ectonexine, through sizing, cooling i.e. obtained composite PVC pipe of the present invention.

Table 1 embodiment 1 sandwich layer formula for raw stock

Starting material	Weight part
		(sky, Yibin is former for polyvinyl chloride (PVC) RESINS; The trade mark is SG-5)	100
Calcium zinc stabilizer (set by Jinchang, Hangzhou; The trade mark is JCS-208A)	4.0
		Modified barium sulphate	50
Superfine light calcium carbonate	15
		ACR resin (trade mark is 401)	3.0
Chlorinatedpolyethylene	8.0
		Stearic acid (HST)	0.6
Polyethylene wax (Thailand; The trade mark is 1080)	1.0

(bright woods receives fatty acid ester lubricant in Guangdong; The trade mark is W-60)	2.0
		Pigment (titanium dioxide)	0.2

Table 2 embodiment 1 ectonexine formula for raw stock

Starting material	Weight part
		Vinyl cyanide, vinylbenzene and acrylate graft copolymers	100
Stearic acid (HST)	0.5
		(bright woods receives fatty acid ester lubricant in Guangdong; The trade mark is W-60)	0.2
Calcium stearate (CaST)	1.0
		Permanent violet (Zhejiang lily, the trade mark is HB-256P)	0.05
Titanium dioxide (climb steel, the trade mark is R-248)	2.0
		Oxidation inhibitor (Suqian is uncommon agree, and the trade mark is 3114)	0.2
Ultraviolet-resistant absorbent (Beijing addition, the trade mark is UV-9)	0.15
		External lubricant (trade mark is H1N6 for synthetic wax, South Africa SASOL)	0.2
Plastic modifier (ACM resin)	3.0
		Superfine light calcium carbonate	5.0

Embodiment 2

The present embodiment prepares the method for weather resisting colorful composite PVC pipe, comprise the following steps: 1, modified barium sulphate preparation: the barium sulfate powder first choosing 100 parts of particle diameter≤3.0 μm, then by selected powder in mixing machine special premix to 80-85 DEG C, then in premix powder, 1 part of coupling agent (titanic acid ester TC-130) is added, 1 part of stearic acid (HST) height mixes 110-120 DEG C, last cold mixing to temperature obtains modified barium sulphate lower than blowing when 50 DEG C; 2, PVC sandwich layer and the granulation of ASA ectonexine batch mixing: obtained by step 1 according to modified barium sulphate in table 3(table 3 respectively) and table 4 choose the starting material of PVC sandwich layer and ASA ectonexine, then selected starting material are distinguished batch mixing granulation; 3, coextru-lamination: by main frame and co-extrusion subsidiary engine co-extrusion PVC sandwich layer and ASA ectonexine, through sizing, cooling i.e. obtained composite PVC pipe of the present invention.

Table 3 embodiment 2 sandwich layer formula for raw stock

Starting material	Weight part
		(sky, Yibin is former for polyvinyl chloride (PVC) RESINS; The trade mark is SG-5)	100
Calcium zinc stabilizer (set by Jinchang, Hangzhou; The trade mark is JCS-208A)	4.5
		Modified barium sulphate	75
Superfine light calcium carbonate	15

ACR resin (trade mark is 401)	3.0
		Chlorinatedpolyethylene	10.0
Stearic acid (HST)	0.7
		Polyethylene wax (Thailand; The trade mark is 1080)	1.1
(bright woods receives fatty acid ester lubricant in Guangdong; The trade mark is W-60)	2.0
		Pigment (titanium dioxide)	0.2

Table 4 embodiment 2 ectonexine formula for raw stock

Embodiment 3

The present embodiment prepares the method for weather resisting colorful composite PVC pipe, comprise the following steps: 1, modified barium sulphate preparation: the barium sulfate powder first choosing 100 parts of particle diameter≤3.0 μm, then by selected powder in mixing machine special premix to 80-85 DEG C, then in premix powder, 1 part of coupling agent (titanic acid ester TC-130) is added, 1 part of stearic acid (HST) height mixes 110-120 DEG C, last cold mixing to temperature obtains modified barium sulphate lower than blowing when 50 DEG C; 2, PVC sandwich layer and the granulation of ASA ectonexine batch mixing: obtained by step 1 according to modified barium sulphate in table 5(table 5 respectively) and table 6 choose the starting material of PVC sandwich layer and ASA ectonexine, then selected starting material are distinguished batch mixing granulation; 3, coextru-lamination: by main frame and co-extrusion subsidiary engine co-extrusion PVC sandwich layer and ASA ectonexine, through sizing, cooling i.e. obtained composite PVC pipe of the present invention.

Table 5 embodiment 3 sandwich layer formula for raw stock

Starting material

Weight part

(sky, Yibin is former for polyvinyl chloride (PVC) RESINS; The trade mark is SG-5)	100
		Calcium zinc stabilizer (set by Jinchang, Hangzhou; The trade mark is JCS-208A)	5.0
Modified barium sulphate	100
		Superfine light calcium carbonate	15
ACR resin (trade mark is 401)	4.0
		Chlorinatedpolyethylene	12.0
Stearic acid (HST)	0.8
		Polyethylene wax (Thailand; The trade mark is 1080)	1.2
(bright woods receives fatty acid ester lubricant in Guangdong; The trade mark is W-60)	2.0
		Pigment (titanium dioxide)	0.2

Table 6 embodiment 3 ectonexine formula for raw stock

The composite drainage pipe choosing normal discharge pipe and embodiment of the present invention 1-3 below carries out performance comparative analysis, and table 7 is embodiment of the present invention composite pipe and normal discharge pipe performance comparison table.

Table 7 composite drainage pipe of the present invention and normal discharge pipe performance comparison

From table 7 to find out: the composite PVC pipe of the embodiment of the present invention 1 ~ 3 is compared with normal discharge pipe, aging shock-resistant ability significantly improves, and aging rear surface colour-change is little, keeps the ability of color strong, after noise reduction, noise surplus obviously reduces, and other indices and normal discharge pipe are more or less the same.Embodiment 1 ~ 3 as can be seen from table, along with the increase of barium sulfate consumption, the static noise reduction of tubing improves, and aging shock resistance ability is substantially identical.

It should be noted that, above embodiment is only unrestricted for illustration of the present invention, and those of ordinary skill in the art suitably can adjust each layer component of composite PVC pipe and ratio thereof.Such as: the titanic acid ester in modified barium sulphate is changed into Aluminate, boric acid fat or organosilane; Saturated fatty alcohol dicarboxylic acid fat in ASA ectonexine or sandwich layer is changed into the fatty acid ester lubricant of other kinds; Change the polyethylene wax external lubricant of ASA ectonexine into paraffin; Change the ACM plastic modifier of ASA ectonexine into MBS resin, chlorinatedpolyethylene or acrylic elastomer.This change is apparent to those skilled in the art, still belongs to protection scope of the present invention.

Claims

1. a weather resisting colorful composite PVC pipe, comprise the skin (3) through coextru-lamination and sandwich layer (2), it is characterized in that: described sandwich layer (2) is layer of PVC, described skin (3) is modified ASA resin layer, and described modified ASA resin is composed of the following components by weight:

Vinyl cyanide, vinylbenzene and acrylate graft copolymers 80-120 part;

Stearic acid 0-1.0 part;

Fatty acid ester lubricant 0.1-0.5 part;

Calcium stearate 0.2-1.2 part;

Pigment 0.2-2.05 part;

Oxidation inhibitor 0-1.0 part;

Ultraviolet-resistant absorbent 0.1-1.5 part;

External lubricant 0.2-2.0 part;

Plastic modifier 2-15 part;

Weighting agent 1-10 part;

Described sandwich layer (2) is modified PVC layer, and described modified PVC is composed of the following components by weight:

Polyvinyl chloride (PVC) RESINS 80-120 part;

Calcium zinc stabilizer 3-7 part;

Modified barium sulphate 10-100 part;

Superfine light calcium carbonate 0-100 part;

ACR resin 1-5 part;

Chlorinatedpolyethylene 1-15 part;

Stearic acid 0.3-1.5 part;

Polyethylene wax 0.3-3.0 part;

Fatty acid ester lubricant 0.3-1.5 part;

Pigment 0.2-5 part.

Described modified barium sulphate is composed of the following components by mass:

Barium sulfate 90-100 part;

Coupling agent 0.5-2.0 part;

Stearic acid 0.3-2.0 part.

2. weather resisting colorful composite PVC pipe as claimed in claim 1, is characterized in that: described external lubricant is polyethylene wax, paraffin or Microcrystalline Wax.

3. weather resisting colorful composite PVC pipe as claimed in claim 1, is characterized in that: described plastic modifier is ACR resin, MBS resin, chlorinatedpolyethylene or acrylic elastomer.

4. weather resisting colorful composite PVC pipe as claimed in claim 1, is characterized in that: described weighting agent is superfine light calcium carbonate, Namigai, ultrafine heavy calcium or polynite.

5. weather resisting colorful composite PVC pipe as claimed in claim 1, is characterized in that: described coupling agent is titanic acid ester, Aluminate, boric acid ester or organosilane.

6. weather resisting colorful composite PVC pipe as claimed in claim 1, is characterized in that: described fatty acid ester emollients is saturated fatty alcohol dibasic acid ester.

7. as weather resisting colorful composite PVC pipe as described in any one in claim 1-6, it is characterized in that: in described sandwich layer (2), also have internal layer (1), described internal layer (1) is identical with the composition of outer (3), and described internal layer (1), sandwich layer (2) and skin (3) are through coextru-lamination.

8., as weather resisting colorful composite PVC pipe as described in any one in claim 1-6, it is characterized in that: the thickness >=1.6mm of described sandwich layer (2), the thickness≤0.2m of described skin (3).