Water-storing and seepage-proofing rubber board and preparation method thereof

A rubber sheet and water storage layer technology, which is applied in the field of composite materials, can solve the problems of fast water absorption and water loss, and achieve the effects of improving aging resistance, aging resistance and water seepage resistance, and good flexibility

Active Publication Date: 2018-12-04
SANHE GREAT WALL RUBBER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the sandy environment is worse than the soil environment. If the SAP resin is directly buried in the fine sand at the root of the tree, it will absorb and lose water quickly, and it can only have a certain effect of drought resistance in a short period of time, and cannot effectively resist long-term Damage to trees during the dry season

Method used

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  • Water-storing and seepage-proofing rubber board and preparation method thereof

Examples

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preparation example Construction

[0041] In the present invention, the preparation method of described dipping liquid preferably comprises the following steps:

[0042] Resorcinol, formaldehyde and NaOH are mixed to carry out polymerization reaction, obtain resorcinol-formaldehyde resin liquid;

[0043] Natural rubber latex and resorcinol-formaldehyde resin liquid are mixed to obtain mixed emulsion;

[0044] The pH value of the mixed emulsion is adjusted to 10-11 by using ammonia water to obtain a dipping solution.

[0045] The invention mixes resorcinol, formaldehyde and NaOH to carry out polymerization reaction to obtain resorcinol-formaldehyde resin liquid. In the present invention, the mass ratio of the resorcinol, formaldehyde and NaOH is preferably 1~2:6~8:1~2, more preferably 1.5:7:1.5; the temperature of the polymerization reaction is preferably room temperature , without additional heating or cooling, more preferably 26°C; the polymerization reaction time is preferably 1-2 days, more preferably 1 da...

Embodiment 1

[0086]Firstly, prepare impregnated cotton short fibers: take 5 parts of resorcinol and 35 parts of formaldehyde, add 5 parts of NaOH at 26° C., and carry out stirring and condensation reaction for 1 day to obtain a resorcinol-formaldehyde resin liquid; Get 90 parts of natural rubber latex, mix 30 parts of resorcinol-formaldehyde resin, use ammonia water (mass concentration is 28%) to adjust the pH value to be 11.0 to obtain the dipping solution, place the dipping solution in the dipping tank of the dipping equipment In the process, the long cotton fiber is soaked in the dipping solution, and the temperature of drying after being pulled out is 70°C, and then naturally cooled to 22°C, and the length of cutting is 10 cm, so as to obtain the short cotton fiber that has been soaked in glue for subsequent use; The base rubber is ready for use after cutting and plasticizing at 60°C;

[0087] The butyl rubber processed by rubber cutting and mastication and the short cotton fiber and o...

Embodiment 2

[0095] Prepare the water-storage anti-seepage rubber sheet according to the method of Example 1, the specific difference is that the consumption of the formula raw materials of the water-storage layer and the anti-seepage layer changes, and the water-storage layer includes the following components by weight:

[0096] 90 parts of butyl rubber, 75 parts of short cotton fiber, 15 parts of polymer water-absorbent resin, 4 parts of zinc oxide, 1 part of stearic acid, 1 part of accelerator M, 0.8 parts of anti-aging agent CTU, 1.5 parts of sulfur;

[0097] The anti-seepage layer comprises the following components by weight:

[0098] 90 parts of butyl rubber, 18 parts of carbon black, 35 parts of light calcium, 4 parts of zinc oxide, 1 part of stearic acid, 1 part of accelerator M, 0.8 parts of antioxidant CTU, and 1.5 parts of sulfur.

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Abstract

The invention provides a water-storing and seepage-proofing rubber board and a preparation method thereof. The water-storing and seepage-proofing rubber board provided by the invention comprises a water storage layer and a seepage-proofing layer. Butyl rubber is used as a supporting and connecting material of the water storage layer, cotton thread short fibers subjected to rubber dipping treatmentand water absorbent resin SAP are added, the cotton thread short fibers are disorderly dispersed in the water storage layer, a water transport channel communicating the water absorbent resin with theoutside world is formed, and the water-absorbing and water-storing functions of the water storage layer are enhanced. Butyl rubber is used as a seepage-proofing layer, carbon black and light calciumcarbonate are added, the tear strength and the tensile resistance are improved, and the rubber board has good water seepage-proofing performance. The water-storing and seepage-proofing rubber board isused for planting trees in deserts, and is buried under roots of the trees; in rainy seasons, a large amount of water can be absorbed and stored; in dry seasons, water of the water storage layer canbe supplied for root systems to absorb slowly through the cotton thread short fibers, the application scope of the rubber board is expanded, and guaranteeing is provided for the survival rate of greenvegetation in the deserts.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a water storage anti-seepage rubber sheet and a preparation method thereof. Background technique [0002] The "Desert into Oasis" project is an important project to reduce land desertification and create an ecological environment. The main control measure is to plant trees in the sand for greening. In the desert, the distance between fine sand is large, water is easy to leak, and it is extremely difficult for plants to survive. , in order to solve these problems, plastic is often spread on the roots of vegetation and tree species, but the heat resistance of plastic is not good. After the cycle of seasons, it will crack and cannot store snow water. After contact, it is easy to cause root rot. [0003] Polymer water-absorbent resin (SAP) is a new type of functional polymer material. It is a class of macromolecules containing hydrophilic groups and cross-linked structur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/22C08L1/02C08K13/02C08K3/22C08K5/09C08K3/06C08K3/04B32B25/04B32B25/02B32B37/10B32B38/00
CPCB32B25/02B32B25/042B32B37/10B32B38/00B32B2038/0076B32B2307/726B32B2307/7265C08K3/04C08K3/06C08K3/22C08K5/09C08K13/02C08K2003/2296C08L23/22C08L1/02
Inventor 李建军
Owner SANHE GREAT WALL RUBBER
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