CN102532814A - Glass fiber reinforced plastic pipeline pipe end sealing material and sealing structure - Google Patents
Glass fiber reinforced plastic pipeline pipe end sealing material and sealing structure Download PDFInfo
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- CN102532814A CN102532814A CN2011103909987A CN201110390998A CN102532814A CN 102532814 A CN102532814 A CN 102532814A CN 2011103909987 A CN2011103909987 A CN 2011103909987A CN 201110390998 A CN201110390998 A CN 201110390998A CN 102532814 A CN102532814 A CN 102532814A
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- whisker
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Abstract
The invention relates to a glass fiber reinforced plastic pipeline pipe end sealing material and a sealing structure. The sealing material comprises resin as a matrix material and is characterized in that whisker occupying 3% to 5% of the resin by weight is added in the resin. The draw ratio of the whisker is larger than 10, preferably larger than 30. The sealing material and the sealing structure have the technical effect that 3% to 5% of whisker is mixed in the matrix material resin, the whisker is short fiber formed by growth of high-purity crystal, the mechanical strength of the whisker is equal to adjacent interatomic force, and the whisker has a high-degree orientation structure. Therefore, compared with the resin sealing material, impact strength, fatigue strength and fracture toughness of the composite material formed by the resin and the whisker are remarkably improved. Simultaneously, a glass fiber reinforced plastic pipeline is of a laminating structure and is commonly formed by an inner layer, an outer layer and a sand clamping layer, and the composite material formed by the resin and the whisker can be well boned to the laminating structure. The pipe end face of the pipe end sealing structure adopting the sealing material is of the laminating structure and comprises an inner layer, a middle sand clamping layer and an outer layer. The sealing structure is characterized in that a sealing layer of the sealing material is covered on the inner layer, the middle sand clamping layer and the outer layer end face of a pipe. By means of the sealing structure, the pipe end face is high in anti-impact strength and good in fracture toughness.
Description
Technical field
The present invention relates to glass fiber reinforced plastic sand-inclusion pipeline, the material and the sealed structure that particularly pipe end are sealed.
Background technology
Need carry out mechanical seal after the cutting of GRP pipe wall thickness is accomplished,,, be prone to cause pipeline internal medium finally to cause seepage along inter-level diffusion as not sealing because tubing is laminate structures.
The common mode that adopts at present is a kind of for directly sealing with resin, and the shortcoming that adopts the virgin resin sealing is that the fragility of virgin resin is bigger, externally impacts to wait being easy to form crackle when existing, and causes sealing effect not good.
Another kind method is carried out the bound edge sealing for adopting mats such as fiberglass surfacing mat with resin, and flexible and intensity are higher, but that shortcoming is a difficulty of construction is big, and it is wrinkling that mat is easy to perk, causes defective, and efficient is low, the cost height.
Summary of the invention
Technical problem to be solved by this invention is improved sealed resin material exactly, makes the sealing material be difficult for forming crackle, and strength and toughness is better; Another technical solution problem of the present invention provides all end sealing structures preferably of a kind of strength and toughness.
In order to solve the problems of the technologies described above, end sealing material of the present invention adopts following technical scheme:
A kind of GRP pipe end sealing material comprises the resin as body material, it is characterized in that: add the whisker that accounts for weight resin per-cent 3%～5% in the said resin.
Said whisker length-to-diameter ratio is greater than 10, and preferred length-to-diameter ratio is greater than 30.
Potassium titanate crystal whisker or the calcium sulfate crystal whiskers preferably handled through silane or titanate coupling agent.
The whisker preferred weight percent numerical value that adds in the said resin is 3%.
Said resin adopts universal 196 vibrin.
Technique effect: the present invention sneaks into 3%～5% whisker in the body material resin, and whisker is the staple fibre that is formed by the high purity single crystal growing, and its physical strength equals in abutting connection with valence f., has height-oriented structure.The height-oriented structure of whisker not only makes it have HS, high-modulus and high elongation rate thus, but also has electricity, light, magnetic, dielectric, conduction, superconduction character.Therefore; Its shock strength of matrix material, fatigue strength by resin and whisker constitute are compared resin-sealing material with fracture toughness property and are significantly improved; Simultaneously; GRP pipe is a laminate structures, is made up of inside and outside layer and intermediary burning into sand layer usually, and the matrix material that is made up of resin and whisker can bond with laminate structures preferably.
Following technical scheme is adopted in the invention of this seal for pipe joints structure:
Use the end sealing structure of above-mentioned sealing material, tube end face is a laminate structures, is followed successively by interior, intermediary burning into sand layer and skin, it is characterized in that: the sealing ply that is coated with above-mentioned sealing material on said tubing internal layer, intermediary burning into sand layer and the outer end face.
The mat that also has bound edge to be covered with on the said sealing ply.
Technique effect: adopt this kind sealed structure, tube end face is excellent in cushion effect, and fracture toughness property is good.
Description of drawings
Fig. 1 is the end sealing structural representation.
Embodiment
Below in conjunction with embodiment technical scheme of the present invention is done further explanation.
A kind of GRP pipe end sealing material embodiment:
A kind of GRP pipe end sealing material; Comprise resin as body material; Add in the resin that to account for weight resin per-cent be 3% whisker, said whisker length-to-diameter ratio is greater than 30, preferred whisker length-to-diameter ratio 30-50; And whisker is selected potassium titanate crystal whisker or calcium sulfate crystal whiskers through silane or titanate coupling agent processing for use, and resin adopts universal 196 vibrin.
According to experiment, adopt 5% whisker to strengthen closed material sealing DN1000, the GRP pipe end face of wall thickness 20mm, from 3 meters high drop impact 3 times, flawless damages with the 20Kg glass epoxy.Adopting the pipeline end face of unreinforced resin sealing to impact promptly has the naked eyes visible crack 1 time, impact 3 times after, the part comes off.
Adopt different whiskers to add weight ratio, contrast tube end face resin-cast body performance (adopting universal 196 vibrin) is measured simple beam impact strength, and concrete data are following:
Virgin resin pour mass: 8.5KJ/M
2
Resin+whisker (adding 1%) 12.1 KJ/M
2
Resin+whisker (adding 3%) 32.4 KJ/M
2
Resin+whisker (adding 5%) 29.7 KJ/M
2
Resin+whisker (adding 7%) 22.7 KJ/M
2
Resin+whisker (adding 10%) 20.1 KJ/M
2
This shows that span can obtain stronger shock strength between 3%～5%.
Seal for pipe joints structure embodiment:
As shown in Figure 1; Adopt the end sealing structure of above-mentioned sealing material; Tube end face is a laminate structures, is followed successively by internal layer 1, intermediary burning into sand layer 2 and skin 3, is coated with the sealing ply 4 of above-mentioned sealing material on said tubing internal layer, intermediary burning into sand layer and the outer end face.
The mat that also has bound edge to be covered with on the said sealing ply.
Technique effect: adopt this sealed structure, tube end face is excellent in cushion effect, and fracture toughness property is good, and water resistance is good.
Claims (8)
1. a GRP pipe end sealing material comprises the resin as body material, it is characterized in that: add the whisker that accounts for weight resin per-cent 3%～5% in the said resin.
2. end sealing material according to claim 1 is characterized in that: said whisker length-to-diameter ratio is greater than 10.
3. end sealing material according to claim 2 is characterized in that: said whisker length-to-diameter ratio is greater than 30.
4. end sealing material according to claim 1 and 2 is characterized in that: said whisker is potassium titanate crystal whisker or the calcium sulfate crystal whiskers through silane or titanate coupling agent processing.
5. end sealing material according to claim 1 and 2 is characterized in that: the whisker weight percent numerical value that adds in the said resin is 3%.
6. end sealing material according to claim 1 and 2 is characterized in that: said resin adopts universal 196 vibrin.
7. use the end sealing structure of claim 1 or 2 said sealing materials; Tube end face is a laminate structures; Be followed successively by interior, intermediary burning into sand layer and skin, it is characterized in that: the sealing ply that is coated with claim 1 or 2 said sealing materials on said tubing internal layer, intermediary burning into sand layer and the outer end face.
8. end sealing structure according to claim 7 is characterized in that: the mat that also has bound edge to be covered with on the said sealing ply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103909987A CN102532814A (en) | 2011-11-30 | 2011-11-30 | Glass fiber reinforced plastic pipeline pipe end sealing material and sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103909987A CN102532814A (en) | 2011-11-30 | 2011-11-30 | Glass fiber reinforced plastic pipeline pipe end sealing material and sealing structure |
Publications (1)
| Publication Number | Publication Date |
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| CN102532814A true CN102532814A (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103909987A Pending CN102532814A (en) | 2011-11-30 | 2011-11-30 | Glass fiber reinforced plastic pipeline pipe end sealing material and sealing structure |
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| CN (1) | CN102532814A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103343841A (en) * | 2013-07-16 | 2013-10-09 | 广西盛世鸿霞玻璃钢制品有限公司 | Fiber reinforced plastic pipe |
| CN106273540A (en) * | 2016-08-30 | 2017-01-04 | 民勤县威瑞环保有限责任公司 | A kind of processing method of the buried RPM of heavy caliber |
| CN106969212A (en) * | 2017-04-28 | 2017-07-21 | 广西北海跃达玻璃钢制品有限公司 | A kind of high-strength and low-cost glass fiber reinforced plastic sand-inclusion pipeline |
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| CN101735683A (en) * | 2010-01-19 | 2010-06-16 | 南京林业大学 | Method for preparing crystal whisker-reinforced wear-resistant coating |
| CN101775212A (en) * | 2009-12-30 | 2010-07-14 | 四川华通特种工程塑料研究中心有限公司 | Polyphenylene sulfide nano whisker composite material and preparation method thereof |
| CN101906264A (en) * | 2010-08-13 | 2010-12-08 | 华南理工大学 | Insulating coil coating and preparation method thereof |
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| CN101775212A (en) * | 2009-12-30 | 2010-07-14 | 四川华通特种工程塑料研究中心有限公司 | Polyphenylene sulfide nano whisker composite material and preparation method thereof |
| CN101735683A (en) * | 2010-01-19 | 2010-06-16 | 南京林业大学 | Method for preparing crystal whisker-reinforced wear-resistant coating |
| CN101906264A (en) * | 2010-08-13 | 2010-12-08 | 华南理工大学 | Insulating coil coating and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103343841A (en) * | 2013-07-16 | 2013-10-09 | 广西盛世鸿霞玻璃钢制品有限公司 | Fiber reinforced plastic pipe |
| CN103343841B (en) * | 2013-07-16 | 2015-02-04 | 广西盛世鸿霞玻璃钢制品有限公司 | Fiber reinforced plastic pipe |
| CN106273540A (en) * | 2016-08-30 | 2017-01-04 | 民勤县威瑞环保有限责任公司 | A kind of processing method of the buried RPM of heavy caliber |
| CN106273540B (en) * | 2016-08-30 | 2018-04-10 | 民勤县威瑞环保有限责任公司 | A kind of processing method of the buried RPM of heavy caliber |
| CN106969212A (en) * | 2017-04-28 | 2017-07-21 | 广西北海跃达玻璃钢制品有限公司 | A kind of high-strength and low-cost glass fiber reinforced plastic sand-inclusion pipeline |
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Application publication date: 20120704 |