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Pre-laid waterproof impervious coiled material with high puncture resistance and aging resistance and preparation method of pre-laid waterproof impervious coiled material

A waterproof, anti-seepage and anti-aging technology, which is applied in cement coatings, adhesive types, infrastructure engineering, etc., can solve problems such as uneven feeding, increased material costs, and reduced flexibility of coils, achieving good anti-permeation and Effects of puncture resistance, aging resistance improvement, and penetration resistance improvement

Active Publication Date: 2022-06-28
苏州凯伦高分子新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The polymer sheet of the waterproof impermeable membrane currently on the market is based on modified polyethylene. In order to achieve higher puncture resistance and impermeability, the usual method is to increase the thickness of the polymer sheet. However, this method On the one hand, it increases the cost of materials, on the other hand, it reduces the flexibility of the coil and increases the difficulty of construction.
[0004] The Chinese patent with the existing application number CN110228253A discloses a flame-retardant and puncture-resistant high-barrier sheet and its preparation method. It adopts a three-layer laminated structure, and the thickness of the sheet is 0.9mm. However, due to the introduction of a large number of brittle barrier materials , will inevitably cause processing difficulties, uneven feeding and other defects, and the puncture resistance needs to be further improved

Method used

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  • Pre-laid waterproof impervious coiled material with high puncture resistance and aging resistance and preparation method of pre-laid waterproof impervious coiled material
  • Pre-laid waterproof impervious coiled material with high puncture resistance and aging resistance and preparation method of pre-laid waterproof impervious coiled material
  • Pre-laid waterproof impervious coiled material with high puncture resistance and aging resistance and preparation method of pre-laid waterproof impervious coiled material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046]Weigh 60 parts by weight of mPE resin with a melt index of 2g / 10min, 0.5 part of photoinitiator (2-hydroxy-2methyl-1-phenyl-1-propanone), 0.3 part of bridging agent (triene) propyl isocyanurate) into the mixing kettle for full mixing, and the stirring speed is 200 RPM; the mixture is put into the twin-screw granulator, extruded and plasticized, pulled by strands, and water-cooled and dried to obtain a diameter of 0.6-0.9 mm. The extruded strip; the extruded strip is irradiated by an ultraviolet irradiation lamp in the band of 300-400 nm, and the cumulative irradiation amount is 5000 mJ / cm 2 , and then pelletized by a pelletizer to obtain extruded pellets;

[0047] Weigh 60.7 parts of the above-mentioned extruded particles, 30 parts of HDPE with a melt index of 2.5g / 10min, 10 parts of LLDPE with a melt index of 1.9, 1 part of color masterbatch and 1 part of antioxidant masterbatch (antioxidant Tetrakis[beta-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid]pentaerythrito...

Embodiment 2

[0051] Weigh 60 parts by weight of mPE resin with a melt index of 2g / 10min, 1 part of photoinitiator (2-hydroxy-2methyl-1-phenyl-1-propanone), 0.8 part of bridging agent (triene) propyl isocyanurate) into the mixing kettle for full mixing, and the stirring speed is 200 RPM; the mixture is put into the twin-screw granulator, extruded and plasticized, pulled by strands, and water-cooled and dried to obtain a diameter of 0.6-0.9 mm. The extruded strip; the extruded strip is irradiated by an ultraviolet irradiation lamp in the band of 300-400 nm, and the cumulative irradiation amount is 5000 mJ / cm 2 , and then pelletized by a pelletizer to obtain extruded pellets;

[0052] Weigh 61.8 parts of the above-mentioned extruded particles and 30 parts of HDPE with a melt index of 2.5g / 10min, 10 parts of LLDPE with a melt index of 1.9, 1 part of color masterbatch and 2 parts of antioxidant masterbatch (antioxidant masterbatch) by weight. Tetrakis[beta-(3,5-di-tert-butyl-4-hydroxyphenyl)pr...

Embodiment 3

[0055] Weigh 60 parts by weight of mPE resin with a melt index of 2g / 10min, 0.5 part of photoinitiator (2-hydroxy-2methyl-1-phenyl-1-propanone), 0.3 part of bridging agent (triene) propyl isocyanurate) into the mixing kettle for full mixing, and the stirring speed is 200 RPM; the mixture is put into the twin-screw granulator, extruded and plasticized, pulled by strands, and water-cooled and dried to obtain a diameter of 0.6-0.9 mm. The extruded strip; the extruded strip is irradiated by an ultraviolet irradiation lamp in the band of 300-400 nm, and the cumulative irradiation amount is 5000 mJ / cm 2 , and then pelletized by a pelletizer to obtain extruded pellets;

[0056] Weigh 60.8 parts of the above-mentioned extruded particles and 30 parts of HDPE with a melt index of 2.5g / 10min, 10 parts of LLDPE with a melt index of 1.9, 1 part of color masterbatch and 0.5 parts of antioxidant masterbatch (antioxidant masterbatch) by weight. Tetrakis[beta-(3,5-di-tert-butyl-4-hydroxypheny...

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Abstract

The invention discloses a pre-laid waterproof impervious coiled material with high puncture resistance and aging resistance. The pre-laid waterproof impervious coiled material comprises a polymer sheet, an adhesive layer and an anti-sticking layer which are sequentially stacked, the high-molecular sheet is prepared from the following raw materials in parts by weight: 40 to 80 parts of mPE, 0.1 to 1.5 parts of photoinitiator, 0.1 to 1.5 parts of bridging agent, 20 to 40 parts of HDPE, 0 to 20 parts of LLDPE, 0.5 to 2 parts of color master batch and 0.5 to 2 parts of antioxidant master batch. According to the pre-laid waterproof and anti-seepage coiled material, a partial cross-linked structure is generated by irradiating mPE through ultraviolet light, and the pre-laid waterproof and anti-seepage coiled material has better anti-seepage and anti-puncture performance. Furthermore, through a preparation mode of firstly crosslinking mPE and then blending HDPE and LLDPE, the processability of the pre-paved waterproof and anti-permeability coiled material is effectively improved. The antioxidant and other components are added later, so that residual free radicals are effectively quenched, and the aging resistance of the material is further improved.

Description

technical field [0001] The invention belongs to the technical field of building materials, and particularly relates to a pre-laid waterproof and impermeable coil material with high puncture resistance and aging resistance and a preparation method thereof. Background technique [0002] As a new type of material, polymer waterproof and impermeable membrane has been widely used in construction projects, mainly used for building foundations, to resist external rainwater, groundwater leakage and other effects. At present, the mainstream waterproof and impermeable membranes on the market are generally composed of polymer sheets, hot-melt pressure-sensitive adhesives and sand grains. The pre-laid anti-adhesion is a construction process, which is laid on the concrete cushion. After construction, it can be combined with post-casting Effective bonding of concrete. [0003] At present, the polymer sheet of the waterproof and impermeable membrane on the market is based on modified poly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/08C08J5/18C09J153/02C09J157/02C09D1/08E02D31/02
CPCC08J5/18C09J153/02C09D1/08E02D31/02C08J2323/06C08J2423/06C08J2423/08C08L57/02
Inventor 朱庆玉单永胜李忠人
Owner 苏州凯伦高分子新材料科技有限公司
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