CN101186465A - Foamed plastic type concrete joint filling board - Google Patents
Foamed plastic type concrete joint filling board Download PDFInfo
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- CN101186465A CN101186465A CNA2007101447258A CN200710144725A CN101186465A CN 101186465 A CN101186465 A CN 101186465A CN A2007101447258 A CNA2007101447258 A CN A2007101447258A CN 200710144725 A CN200710144725 A CN 200710144725A CN 101186465 A CN101186465 A CN 101186465A
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Abstract
The invention belongs to a foamed plastic type concrete caulking plate, which relates to a plastic type concrete caulking plate. The invention overcomes the defects existing in the current asphalt immersed fir plate used as concrete caulking plate that the construction effect is poor, the decoction of asphalt pollutes environment and threatens the health of workers, the asphalt is easy to lose efficacy to result in the erosion and damage of the concrete caulking plate, furthermore, adopting fir as concrete caulking plate needs to consume large amount of high quality wood, which destroys the ecological resources. The foamed plastic type concrete caulking plate comprises in weight proportion 50-100 portions of matrix resin, 0.5-30 portions of vesicant, 0.5-5 portions of crosslinking agent which are mixed to form the foamed plastic type concrete caulking plate. The foamed plastic type concrete caulking plate belongs to medium and high foamed products with 2-15 times foaming rate and has the advantages of water resistance, humidity-resistance, low temperature resistance, adaptation to temperature change and corrosion resistance.
Description
Technical field
The present invention relates to a kind of shaped plastics concrete joint filling board.
Background technology
The stress that exists owing to inside concrete in various concrete structure engineerings often causes concrete to produce cracking; In order to transmit and to disperse the stress of mass concrete inside usually to reserve the tension set seam at regular intervals, comprise expansion joint, settlement joint, aseismic joint etc.
Existing adopt bitumen-impregnated China fir plate as concrete joint filling board, the pitch easily trickling of being heated in summer, pitch hardened and became fragile winter, and the bituminous health that boils contaminate environment and threaten the workmen; Pitch lost efficacy easily in addition, cause termite moth erosion timber, the water-intake rate of China fir plate raises, deformation rate obviously increases, timber is out of shape restorability by compression and reduces, when causing the concrete surface plate temperature to raise joint filling board squeezed bad, come off, joint filling board thickness was because of the extruding attenuation when concrete surface plate temperature reduced.Adopt the China fir plate need consume a large amount of high-quality timber, destroy ecological resources as concrete joint filling board.
Summary of the invention
The objective of the invention is in order to solve the health that construction effect is poor, pitch boils contaminate environment and threatens the workmen that the bitumen-impregnated China fir plate of present employing exists as concrete joint filling board, pitch lost efficacy easily and causes concrete joint filling board to be etched and damage and adopt the China fir plate need consume a large amount of high-quality timber as concrete joint filling board, destroy the defective of ecological resources, and a kind of foamed plastic type concrete joint filling board that provides.
Foamed plastic type concrete joint filling board comprises that by ratio of weight and the number of copies 50～100 parts matrix resin, 0.5～30 part whipping agent and 0.1～5 part linking agent are mixed and made into; Wherein matrix resin comprises 70～100 parts new LDPE (film grade) by ratio of quality and the number of copies.
High foamed products during shaped plastics concrete joint filling board of the present invention belongs to, expansion ratio is 2～15 times, has water-fastly, moisture resistance, low temperature resistant, adaptive temperature changes, corrosion resistant advantage.Shaped plastics concrete joint filling board compressive hardness of the present invention (shore hardness 48～80, compressive hardness (50% strain) 3.5～35.0kgf/cm
2Restoratively reach 95%～99%, tensile strength reaches 0.8～4.8MPa (existing foam material, as polystyrene foam, the tensile strength of polyurethane foam or polyvinyl chloride foam only is 0.15～0.5MPa), elongation at break is 100%～280%, compression set＜6%, compressive strength is 0.35～3.5MPa (existing foam material, as polystyrene foam, the compressive strength of polyurethane foam or polyvinyl chloride foam only is 0.08～0.18Mpa, compression set 50%～70%, elongation at break is respectively 4%～10%), 80 ℃ are not clamminess,-50 ℃ of 180 ° of low temperature doublings are flawless, through 300 freeze-thaw cycle tensile strengths, elongation at break conservation rate＞97%; And production cost also only is 30%～40% of polyvinyl chloride foam, and compression set (75% strain) is not more than 5%, compresses (strain 50%) tension set 8%～10% repeatedly 100,000 times, at saturated Ca (OH)
2With NaCl, 30%H
2SO
4Soaked 28 days in the solution, at 40%HNO
3, all do not have corrosion, strength retention 97%～110%, size changing rate＜0.5%, weight rate＜0.5% among the 96h in 95% ethanol, acetone
Shaped plastics concrete joint filling board of the present invention construction period is free from environmental pollution, and the workmen is not had harm, can keep its excellent mechanical property not reduce for a long time.Shaped plastics concrete joint filling board of the present invention needn't consume timber, can preserve the ecological environment.Shaped plastics concrete joint filling board of the present invention is mainly used in the concrete joint filling field, is applicable to the seam engineering of concrete deformation seams such as water conservancy, traffic, airfield runway, harbour, channel, tunnel, sewage work.
Embodiment
Embodiment one: the present embodiment foamed plastic type concrete joint filling board is mixed and made into by 50～100 parts matrix resin, 0.5～30 part whipping agent and 0.1～5 part linking agent by ratio of weight and the number of copies; Wherein matrix resin comprises 70～100 parts new LDPE (film grade) by ratio of quality and the number of copies.
New LDPE (film grade) in the present embodiment (LDPE) density 0.930g/cm
3, resin melting index scope is 0.25～2.1 gram/10 minutes.
The expansion ratio of present embodiment foamed plastic type concrete joint filling board is 2～15 times, and density is 60～400kg/m
3, be positioned over that 4h is not clamminess in 80 ℃ of environment, it is not crisp firmly to be positioned in-80 ℃ of environment 4h.The size of present embodiment foamed plastic type concrete joint filling board and thickness can be selected according to actual needs.The present embodiment foamed plastic type concrete joint filling board also can be used as floor, packing, insulation, floating, buffering, shockproof and energy-absorbing material uses.
The present embodiment foamed plastic type concrete joint filling board can adopt the method preparation of conventional extrusion molding, molding or injection moulding, and can adopt physical blowing or chemical blowing process, and keeping gel fraction is 30%～95%; Blend banburying temperature is 110～135 ℃ in the preparation process of present embodiment foamed plastic type concrete joint filling board, and the banburying time is 5～30min, and blowing temperature is 160～180 ℃, and foamed time is 5～15min.
Embodiment two: the difference of present embodiment and embodiment one is: foamed plastic type concrete joint filling board also comprises 0.1～40 part properties-correcting agent, 0.1～30 part frothing aid, 0.1～10 part liquid adjuvants, 0.1～5 part anti-aging agent, 0.1～3 part nucleator, 0.5～8 part external lubricant, 0.1～2 part oxidation inhibitor and/or 0.1～1 part UV light absorber by ratio of weight and the number of copies.Other step and parameter are identical with embodiment one.
The present embodiment external lubricant is the PVC external lubricant.
Present embodiment adds UV light absorber after 500～800h ultraviolet irradiation intensity conservation rate＞90% (existing foam material is lower than 85% as strength retention behind the uviolizing 144h of polystyrene foam, polyurethane foam or polyvinyl chloride foam).
Embodiment three: the difference of present embodiment and embodiment one is: matrix resin also comprises 10～30 parts high density polyethylene(HDPE) by ratio of quality and the number of copies, 10～30 parts ethylene-alpha-olefin copolymer, 10～30 parts ethylene-vinyl acetate copolymer, 10～30 parts linear low density polyethylene, 10～30 parts binary ethylene-propylene copolymer, 10～30 parts ternary ethylene-propylene copolymer, 10～30 parts natural rubber, 10～30 parts styrene-butadiene rubber(SBR), 10～30 parts cis-1,4-polybutadiene rubber, the nitrile rubber of 10～30 parts high styrene rubber or 10～30 parts.Other step and parameter are identical with embodiment one.
The molecular weight of present embodiment middle-high density polyethylene (HDPE) is 40000～300000; Ethylene-vinyl acetate copolymer (EVA) density is 0.935g/cm
3, resin melting index scope is 1.8～2.0 grams/10 minutes, the content of vinyl acetate between to for plastic (VA) is 5%～40%; Ethylene-alpha-olefin copolymer wherein alhpa olefin contains 3～30 of carbon atoms, and density is 0.930g/cm
3, resin melting index scope is 3.6 grams/10 minutes; Linear low density polyethylene (LLDPE) density is 0.918g/cm
3, resin melting index scope is 1.7～1.9 grams/10 minutes.
The sulphur that need add mass fraction when the elastomeric material add-on surpasses 20 parts in the present embodiment simultaneously and be 0.5～3 part is as linking agent.
Embodiment four: the difference of present embodiment and embodiment one is: matrix resin also comprises 10～30 parts the chlorinatedpolyethylene and the mixture of regenerated polythene by ratio of quality and the number of copies, wherein polyethylene accounts for 40%～80% of mixture quality, and regenerated polythene is a surplus.Other step and parameter are identical with embodiment one.
Chlorinatedpolyethylene (CPE) chlorinity 30%～45%.
Embodiment five: the difference of present embodiment and embodiment one is: whipping agent is Cellmic C 121 (AC) or azo two isobutyls fine (AIBN).Other step and parameter are identical with embodiment one.
Embodiment six: the difference of present embodiment and embodiment one is: linking agent is dicumyl peroxide (DCP) or benzoyl peroxide (BPO).Other step and parameter are identical with embodiment one.
Embodiment seven: the difference of present embodiment and embodiment two is: properties-correcting agent is titanium dioxide, talcum powder, light calcium carbonate or Calcium of intensifiens.Other step and parameter are identical with embodiment two.
Embodiment eight: the difference of present embodiment and embodiment two is: frothing aid is zinc oxide or Zinic stearas.Other step and parameter are identical with embodiment two.
Embodiment nine: the difference of present embodiment and embodiment two is: liquid adjuvants is white oil or silicone oil.Other step and parameter are identical with embodiment two.
Embodiment ten: the difference of present embodiment and embodiment two is: anti-aging agent is a carbon black.Other step and parameter are identical with embodiment two.
Embodiment 11: the difference of present embodiment and embodiment two is: oxidation inhibitor is thiobisphenol antioxidant.Other step and parameter are identical with embodiment two.
The present embodiment thiobisphenol antioxidant is antioxidant 300 or oxidation inhibitor 736.
Embodiment 12: the difference of present embodiment and embodiment two is that nucleator is anatase thpe white powder or Rutile type Titanium Dioxide.Other step and parameter are identical with embodiment two.
Nucleator in the present embodiment is a ultrafine powder.
Embodiment 13: the difference of present embodiment and embodiment one is: keeping gel fraction is 60%～90%.Other step and parameter are identical with embodiment one.
Embodiment 14: the difference of present embodiment and embodiment one is: the density of foamed plastic type concrete joint filling board is 80～200kg/m
3Other step and parameter are identical with embodiment one.
Embodiment 15: the starting material and the performance of present embodiment foamed plastic type concrete joint filling board are as shown in table 1.
Table 1
| Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Example 6 | Example 7 | Example 8 | ||
| Matrix resin | LDPE | 90 | 85 | 70 | 80 | 80 | 70 | 100 | 100 |
| LLDPE | 20 | ||||||||
| EVA | 15 | 30 | 20 | 10 | |||||
| CPE | 10 | ||||||||
| Regenerated polythene | 20 | ||||||||||
| Natural rubber | 10 | ||||||||||
| Whipping agent | AC | 3.8 | 3.2 | 1.8 | 4.5 | 3.2 | 3.2 | ||||
| AIBN | 6.5 | 2.1 | |||||||||
| Frothing aid | Zinc oxide | 1.8 | 1.2 | 1.0 | 0.8 | 1.0 | 1.2 | 1.3 | |||
| Zinic stearas | 0.8 | 0.6 | 0.5 | 0.4 | 0.6 | 0.7 | |||||
| Linking agent | DCP | 1.2 | 1.0 | 1.0 | 1.2 | 0.8 | 1.0 | ||||
| BPO | 1.0 | 1.0 | |||||||||
| Anti-aging agent | Carbon black | 1.8 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | |||
| Oxidation inhibitor | 300 types | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | |||||
| 736 types | 0.3 | ||||||||||
| UV light absorber | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | |||||
| Liquid adjuvants | White oil | 1.0 | 1.0 | 1.0 | |||||||
| Silicone oil | 1.0 | 1.0 | 1.0 | ||||||||
| Nucleator | Anatase thpe white powder | 0.2 | |||||||||
| Rutile type Titanium Dioxide | 0.3 | ||||||||||
| External lubricant | 0.5 | 0.5 | |||||||||
| Properties-correcting agent | Titanium dioxide | 3 | |||||||||
| Talcum powder | 3 | ||||||||||
| Light calcium carbonate | 3 | ||||||||||
| Calcium of intensifiens | 3 | ||||||||||
| Foam density (kg/m3) | 112 | 135 | 162 | 202 | 172 | 138 | 136 | 135 | |||
| Compression set (%) | ＜6 | ＜4 | ＜3 | ＜3 | ＜3 | ＜4 | ＜4 | ＜4 | |||
| UV resistant strength retention (%) | 144h | ＞95 | ＞95 | ＞96 | ＞96 | 88 | ＞94 | ＞96 | 88 | ||
| 500h | ＞89 | ＞89 | ＞91 | ＞92 | 88 | ＞93 | ＞91 | 88 | |||
Claims (10)
1. a foamed plastic type concrete joint filling board is characterized in that foamed plastic type concrete joint filling board comprises that by ratio of weight and the number of copies 50～100 parts matrix resin, 0.5～30 part whipping agent and 0.1～5 part linking agent are mixed and made into; Wherein matrix resin comprises 70～100 parts new LDPE (film grade) by ratio of quality and the number of copies.
2. a kind of foamed plastic type concrete joint filling board according to claim 1 is characterized in that foamed plastic type concrete joint filling board also comprises 0.1～40 part properties-correcting agent, 0.1～30 part frothing aid, 0.1～10 part liquid adjuvants, 0.1～5 part anti-aging agent, 0.1～3 part nucleator, 0.5～8 part external lubricant, 0.1～2 part oxidation inhibitor and/or 0.1～1 part UV light absorber by ratio of weight and the number of copies.
3. a kind of foamed plastic type concrete joint filling board according to claim 1 is characterized in that matrix resin also comprises 10～30 parts high density polyethylene(HDPE) by ratio of quality and the number of copies, 10～30 parts ethylene-alpha-olefin copolymer, 10～30 parts ethylene-vinyl acetate copolymer, 10～30 parts chlorinatedpolyethylene, 10～30 parts linear low density polyethylene, 10～30 parts binary ethylene-propylene copolymer, 10～30 parts ternary ethylene-propylene copolymer, 10～30 parts natural rubber, 10～30 parts styrene-butadiene rubber(SBR), 10～30 parts cis-1,4-polybutadiene rubber, the nitrile rubber of 10～30 parts high styrene rubber or 10～30 parts.
4. a kind of foamed plastic type concrete joint filling board according to claim 1, it is characterized in that matrix resin also comprises the mixture of 10～30 parts of polyethylene and regenerated polythene by ratio of quality and the number of copies, wherein polyethylene accounts for 40%～80% of mixture quality, and regenerated polythene is a surplus.
5. a kind of foamed plastic type concrete joint filling board according to claim 1 is characterized in that whipping agent is that Cellmic C 121 or azo two isobutyls are fine.
6. a kind of foamed plastic type concrete joint filling board according to claim 1 is characterized in that linking agent is dicumyl peroxide or benzoyl peroxide.
7. a kind of foamed plastic type concrete joint filling board according to claim 2 is characterized in that properties-correcting agent is titanium dioxide, talcum powder, light calcium carbonate or Calcium of intensifiens.
8. a kind of foamed plastic type concrete joint filling board according to claim 2 is characterized in that frothing aid is zinc oxide or Zinic stearas.
9. a kind of foamed plastic type concrete joint filling board according to claim 2 is characterized in that liquid adjuvants is white oil or silicone oil.
10. a kind of foamed plastic type concrete joint filling board according to claim 2 is characterized in that anti-aging agent is a carbon black; Oxidation inhibitor is thiobisphenol antioxidant; Nucleator is anatase thpe white powder or Rutile type Titanium Dioxide.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101447258A CN101186465A (en) | 2007-12-03 | 2007-12-03 | Foamed plastic type concrete joint filling board |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101447258A CN101186465A (en) | 2007-12-03 | 2007-12-03 | Foamed plastic type concrete joint filling board |
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| CN101186465A true CN101186465A (en) | 2008-05-28 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102516660A (en) * | 2011-12-07 | 2012-06-27 | 湖北众联塑业有限公司 | Processing modifier for waste polypropylene plate material and use method thereof |
| CN102516661A (en) * | 2011-12-07 | 2012-06-27 | 湖北众联塑业有限公司 | Processing modifier for polypropylene waste injection molding material and application method thereof |
| CN102532700A (en) * | 2011-12-07 | 2012-07-04 | 湖北众联塑业有限公司 | Processing modifier used for vehicle bumper waste polypropylene material and application method thereof |
| CN102604201A (en) * | 2011-12-07 | 2012-07-25 | 湖北众联塑业有限公司 | Processing modifier for polypropylene waste film material and use method thereof |
| CN104497392A (en) * | 2014-12-09 | 2015-04-08 | 黑龙江省润特科技有限公司 | Ultraviolet cross-linking polyolefin foaming material and preparation method thereof |
| CN106046491A (en) * | 2016-07-02 | 2016-10-26 | 苏州横远微控技术有限公司 | PE-based composite material as well as preparation method and application thereof |
| CN106317736A (en) * | 2016-09-19 | 2017-01-11 | 福建晋江市山水鞋材有限公司 | Foamed hard wood-like material and preparation method and application thereof |
| CN108976564A (en) * | 2018-08-09 | 2018-12-11 | 太仓金汇再生资源有限公司 | A kind of Environment-friendlywear-resistant wear-resistant protective cover material |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102516660A (en) * | 2011-12-07 | 2012-06-27 | 湖北众联塑业有限公司 | Processing modifier for waste polypropylene plate material and use method thereof |
| CN102516661A (en) * | 2011-12-07 | 2012-06-27 | 湖北众联塑业有限公司 | Processing modifier for polypropylene waste injection molding material and application method thereof |
| CN102532700A (en) * | 2011-12-07 | 2012-07-04 | 湖北众联塑业有限公司 | Processing modifier used for vehicle bumper waste polypropylene material and application method thereof |
| CN102604201A (en) * | 2011-12-07 | 2012-07-25 | 湖北众联塑业有限公司 | Processing modifier for polypropylene waste film material and use method thereof |
| CN104497392A (en) * | 2014-12-09 | 2015-04-08 | 黑龙江省润特科技有限公司 | Ultraviolet cross-linking polyolefin foaming material and preparation method thereof |
| CN106046491A (en) * | 2016-07-02 | 2016-10-26 | 苏州横远微控技术有限公司 | PE-based composite material as well as preparation method and application thereof |
| CN106046491B (en) * | 2016-07-02 | 2018-07-06 | 苏州横远微控技术有限公司 | PE based composites and its preparation method and application |
| CN106317736A (en) * | 2016-09-19 | 2017-01-11 | 福建晋江市山水鞋材有限公司 | Foamed hard wood-like material and preparation method and application thereof |
| CN108864637B (en) * | 2016-09-19 | 2020-05-05 | 福建晋江市山水鞋材有限公司 | Foamed hard wood-like material and preparation method and application thereof |
| CN108976564A (en) * | 2018-08-09 | 2018-12-11 | 太仓金汇再生资源有限公司 | A kind of Environment-friendlywear-resistant wear-resistant protective cover material |
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Effective date of registration: 20080627 Address after: 78, Xing Xing Road, Nangang District, Heilongjiang, Harbin, China: 150080 Applicant after: Heilongjiang Prov. Water Conservancy Science Inst. Address before: 78, Xing Xing Road, Nangang District, Heilongjiang, Harbin, China: 150080 Applicant before: Li Yafen |
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