CN105199489A - High density polyethylene composite material with toughness and heat resistance modification for coating steel-plastic composite pipe and preparation method thereof - Google Patents
High density polyethylene composite material with toughness and heat resistance modification for coating steel-plastic composite pipe and preparation method thereof Download PDFInfo
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- CN105199489A CN105199489A CN201510559530.4A CN201510559530A CN105199489A CN 105199489 A CN105199489 A CN 105199489A CN 201510559530 A CN201510559530 A CN 201510559530A CN 105199489 A CN105199489 A CN 105199489A
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Abstract
The invention discloses a high density polyethylene composite material with toughness and heat resistance modification for coating a steel-plastic composite pipe. According to the composite material, cellulose acetate and polyvinyl butyral are used to modify high density polyethylene, so that the strength and the toughness of the high density polyethylene are effectively improved; with the blended raw materials such as nanometer silicon nitride and colloidal graphite powder, the adhesive property and the mechanical property of the composite material and metal are further improved, and the thermal stability is more excellent; with nano-montmorillonite cladded by organic silicon sol, the compactness of a resin layer can be effectively improved, and the waterproofness and anticorrosion capacity are improved; compared with traditional plastic, as the steel-plastic composite pipe inner and outer wall coating material, the high density polyethylene composite material has excellent usability.
Description
Technical field
The present invention relates to the effective plastic material of steel plastic compount, particularly relate to a kind of steel-plastics composite pipe application tough and tensile heat resistance modified high-density polyethylene composite material and preparation method thereof.
Background technology
Steel-plastics composite pipe is with weldless steel tube, Welded Steel Pipe is base tube, the plastics such as coating inner and outer walls polyethylene powder coating or epoxypaint, adopt pre-treatment, preheating, interior application, levelling, the class tubing that aftertreatment technology is made, wherein coating inner and outer walls applies more plastics is high density polyethylene(HDPE), the thermotolerance of high density polyethylene(HDPE) and mechanical property comparatively medium-density polyethylene, Low Density Polyethylene is more excellent, but it is in hot-melt adhesive paste and flexibility, the aspect existing defects such as creep resistance, need to do further modification, to widen the range of application of high density polyethylene pipe, meet environment for use complicated and changeable.
Summary of the invention
The object of the invention is exactly the defect in order to make up prior art, provides a kind of steel-plastics composite pipe application tough and tensile heat resistance modified high-density polyethylene composite material and preparation method thereof.
The present invention is achieved by the following technical solutions:
The tough and tensile heat resistance modified high-density polyethylene composite material of a kind of steel-plastics composite pipe application, this matrix material is prepared by the raw material of following weight part: high density polyethylene(HDPE) (HDPE) 60-70, cellulose acetate 8-10, polyvinyl butyral acetal 15-18, nano-silicon nitride 3-5, nano imvite 10-12,600-800 order oildag powder 1-2, silane coupling agent 0.1-0.2, antioxidant 1010 0.1-0.2, organic silicon sol 5-6, acetone in proper.
Described organic silicon sol is prepared by the raw material of following weight part: nano silicon 3-5, solid content are the fluorine carbon emulsion 12-15 of 40-50%, its preparation method for nano silicon is dropped in fluorine carbon emulsion, ultrasonic disperse evenly after and get final product.
Described a kind of steel-plastics composite pipe application by the preparation method of tough and tensile heat resistance modified high-density polyethylene composite material is:
(1) first cellulose acetate, polyvinyl butyral acetal are dropped in acetone together, after stirring makes material dissolve completely, drop into nano-silicon nitride, oildag powder subsequently, by slurry drying after mixed grinding dispersion 40-50min, except desolventizing, gained material is for subsequent use;
(2) powder step (1) prepared and silane coupling agent mixing and stirring, gained material is for subsequent use;
(3) mixed with nano imvite by organic silicon sol, through heated drying process after grinding distribution 20-30min, dried material is for subsequent use;
(4) material prepared by step (2), (3) is mixed with other leftover materials, drop into blended kneading in high-speed kneading machine, kneader rotating speed is 1000-1500 rev/min, kneading temperature is 50-60 DEG C, after mediating 20-30min, blowing cools, drop into extruding pelletization in twin screw extruder after cooling completely, to obtain final product.
Advantage of the present invention is: utilize cellulose acetate, polyvinyl butyral acetal carries out modification to high density polyethylene(HDPE), to improve intensity and the toughness of high density polyethylene(HDPE), first by cellulose acetate in preparation process, polyvinyl butyral acetal be mixed with solution again with nano-silicon nitride, the powder mixing such as oildag powder, heat drying makes it in the coated film forming of powder surface, greatly improve the dispersiveness of raw material like this, modified effect is better, nano-silicon nitride wherein, the raw materials such as oildag powder improve cementability and the mechanical property of matrix material and metal further, heat-resistant stability is better, and the nano imvite after the coated process of organic silicon sol, effectively can improve the compactness of resin layer, improve water-tight corrosion-proof ability, it reveals excellent use properties as the plastic table that steel-plastics composite pipe coating inner and outer walls material is more traditional.
Embodiment
The matrix material of this embodiment is prepared by the raw material of following weight part: high density polyethylene(HDPE) (HDPE) 65, cellulose acetate 8, polyvinyl butyral acetal 16, nano-silicon nitride 4, nano imvite 10,800 order oildag powder 1.5, silane coupling agent 0.1, antioxidant 1010 0.1, organic silicon sol 5, acetone in proper.
Wherein organic silicon sol is prepared by the raw material of following weight part: nano silicon 4, solid content are the fluorine carbon emulsion 14 of 45%, its preparation method for nano silicon is dropped in fluorine carbon emulsion, ultrasonic disperse evenly after and get final product.
The preparation method of this modification high-density polyethylene composite material is:
(1) first cellulose acetate, polyvinyl butyral acetal are dropped into together in acetone, stir after material is dissolved completely, drop into nano-silicon nitride, oildag powder subsequently, by slurry drying after mixed grinding dispersion 50min, except desolventizing, gained material is for subsequent use;
(2) by material obtained for step (1) and silane coupling agent mixing and stirring, gained material is for subsequent use;
(3) mixed with nano imvite by organic silicon sol, through heated drying process after grinding distribution 25min, dried material is for subsequent use;
(4) mixed with other leftover materials by material prepared by step (2), (3), drop into blended kneading in high-speed kneading machine, kneader rotating speed is 1500 revs/min, mediating temperature is 60 DEG C, after mediating 25min, blowing cools, and drops into extruding pelletization in twin screw extruder completely, to obtain final product after cooling.
Relevant criterion followed by matrix material obtained by the present embodiment, and measured performance index are as follows:
Tensile strength: 25.6MPa.
Tension fracture elongation rate: 542%.
Vicat softening point: 150 DEG C.
Sticking power is tested: with the sticking power >=7.5MPa of stainless steel surface.
Acid corrosion-resistant is tested: soak 168h in 3% sulphuric acid soln, material surface is unchanged.
Oil resistant is tested: in white gasoline, soak 72h, material surface is unchanged.
Claims (3)
1. the tough and tensile heat resistance modified high-density polyethylene composite material of steel-plastics composite pipe application, it is characterized in that, this matrix material is prepared by the raw material of following weight part: high density polyethylene(HDPE) (HDPE) 60-70, cellulose acetate 8-10, polyvinyl butyral acetal 15-18, nano-silicon nitride 3-5, nano imvite 10-12,600-800 order oildag powder 1-2, silane coupling agent 0.1-0.2, antioxidant 1010 0.1-0.2, organic silicon sol 5-6, acetone in proper.
2. the tough and tensile heat resistance modified high-density polyethylene composite material of a kind of steel-plastics composite pipe application as claimed in claim 1, it is characterized in that, described organic silicon sol is prepared by the raw material of following weight part: nano silicon 3-5, solid content are the fluorine carbon emulsion 12-15 of 40-50%, its preparation method for nano silicon is dropped in fluorine carbon emulsion, ultrasonic disperse evenly after and get final product.
3. a kind of steel-plastics composite pipe application preparation method of tough and tensile heat resistance modified high-density polyethylene composite material as claimed in claim 1, it is characterized in that, described preparation method is:
(1) first cellulose acetate, polyvinyl butyral acetal are dropped in acetone together, after stirring makes material dissolve completely, drop into nano-silicon nitride, oildag powder subsequently, by slurry drying after mixed grinding dispersion 40-50min, except desolventizing, gained material is for subsequent use;
(2) powder step (1) prepared and silane coupling agent mixing and stirring, gained material is for subsequent use;
(3) mixed with nano imvite by organic silicon sol, through heated drying process after grinding distribution 20-30min, dried material is for subsequent use;
(4) material prepared by step (2), (3) is mixed with other leftover materials, drop into blended kneading in high-speed kneading machine, kneader rotating speed is 1000-1500 rev/min, kneading temperature is 50-60 DEG C, after mediating 20-30min, blowing cools, drop into extruding pelletization in twin screw extruder after cooling completely, to obtain final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510559530.4A CN105199489A (en) | 2015-09-06 | 2015-09-06 | High density polyethylene composite material with toughness and heat resistance modification for coating steel-plastic composite pipe and preparation method thereof |
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| CN201510559530.4A CN105199489A (en) | 2015-09-06 | 2015-09-06 | High density polyethylene composite material with toughness and heat resistance modification for coating steel-plastic composite pipe and preparation method thereof |
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| CN105199489A true CN105199489A (en) | 2015-12-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109593272A (en) * | 2018-12-17 | 2019-04-09 | 方期洲 | A kind of chemical plant high temperature resistant acidic gas transmission pipeline and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104448505A (en) * | 2014-12-22 | 2015-03-25 | 青岛科技大学 | Polyethylene and microcrystal ceramic composite material and preparation method thereof |
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- 2015-09-06 CN CN201510559530.4A patent/CN105199489A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104448505A (en) * | 2014-12-22 | 2015-03-25 | 青岛科技大学 | Polyethylene and microcrystal ceramic composite material and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109593272A (en) * | 2018-12-17 | 2019-04-09 | 方期洲 | A kind of chemical plant high temperature resistant acidic gas transmission pipeline and preparation method thereof |
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Application publication date: 20151230 |