A new type of root puncture resistant waterproof material and its production process

Abstract

The invention discloses a novel root puncture resistant waterproof material and a production process thereof. The novel root puncture resistant waterproof material is composed of the following components: 40-60 parts of polyether, 20-40 parts of isocyanate, 10-25 parts of hydroxyl microspheres, 5-15 parts of plasticizer, 0.1-5 parts of defoamer, and 0.01-3 parts of catalyst; the hydroxyl microspheres are microspheres with hydroxyl groups on the surface and chemical root inhibitors wrapped inside. The novel root puncture resistant waterproof material of the invention has excellent mechanical properties, and the root puncture resistant effect is more reliable and durable than traditional physical addition, and is suitable for planted roofs in various environments.

Description

Technical Field

[0001] The invention relates to the technical field of waterproof coatings, and in particular to a novel root-penetration-resistant waterproof material and a production process thereof. Background Art

[0002] The main root blocking mechanisms of root penetration resistant waterproof materials can be divided into chemical root blocking and physical root blocking. Physical root blocking is mainly achieved by relying on the high strength and high hardness of the material itself, such as polymer root penetration resistant waterproof membranes; chemical root blocking is mainly achieved by adding chemical root blocking agents, such as common polymer modified asphalt root penetration resistant waterproof membranes. Chemical root blocking agents in these waterproof materials mainly rely on the uniformity and effectiveness of dispersion to achieve the root blocking effect. They belong to physical mixed dispersion, and the root blocking effect depends to a large extent on the compatibility of the root blocking agent with the system. Over time, root blocking agents added only through physical mixing have the risk of migration failure. On the other hand, due to construction methods such as welding at the overlapping edges of root penetration resistant waterproof membranes, the chemical root blocking agent may become ineffective or missing, resulting in root penetration.

[0003] Patent CN201610490398.0 discloses a puncture-resistant polyurethane waterproof coating and a preparation method thereof, which consists of two components A and B. Component A consists of prepolymer 1 and prepolymer 2. Prepolymer 1 consists of 25.8 to 28.5 parts of toluene diisocyanate, 20 to 30 parts of polyether 220, 20 to 30 parts of polyether 3050 and 15 to 25 parts of polyether 330N; prepolymer 2 consists of 24.3 to 27.5 parts of toluene diisocyanate, 55 to 65 parts of polyether 220 and 10 to 20 parts of polyether 3050; component B consists of 15.7 to 17 parts of 3,3-dichloro-4,4-diaminodiphenylmethane, 70 to 80 parts of chlorinated paraffin, 66 to 80 parts of talc, 25 to 30 parts by weight of dioctyl phthalate, 1 to 2 parts of stannous octoate and 2 to 6 parts of defoamer AC301. The patented multiple cross-linked structure increases the cohesive energy of polyurethane and increases its puncture resistance. However, the puncture resistance still needs to be improved in complex and humid soil environments if it only relies on the resistance barrier effect.

[0004] CN110903751B discloses a reactive one-component polyurethane root puncture resistant waterproof coating and a preparation method thereof, wherein a chemical root inhibitor that can react chemically with isocyanate in the coating is added to the waterproof coating, and the molecular structure of the chemical root inhibitor contains a root inhibitor active group and one or two hydroxyl groups that can react chemically with the main component group isocyanate in the polyurethane coating. The root puncture resistant waterproof coating of the present invention not only has excellent physical properties, but also has a more reliable and durable root puncture resistant effect than traditional physical additions in terms of root puncture resistance performance because its root inhibitor directly participates in the chemical reaction, and is a truly reactive one-component polyurethane root puncture resistant waterproof coating. However, this method involves the modification of the chemical root inhibitor, the reaction is not easy to control, and the chemical root inhibitor has a certain influence on the chemical root inhibitor effect after reacting with small molecule alcohol. Summary of the invention

[0005] In order to overcome the defects of the prior art, the present invention provides a new root penetration resistant waterproof material, which has the dual advantages of chemical root barrier and physical root barrier, can not only improve the mechanical properties of the waterproof material, but also can reliably and lastingly play a chemical root barrier effect.

[0006] Another object of the present invention is to provide a production process for the novel root-penetration-resistant waterproof material.

[0007] In order to achieve the above invention object, the present invention adopts the following technical solution:

[0008] A novel root penetration resistant waterproof material is composed of the following components: 40-60 parts of polyether, 20-40 parts of isocyanate, 10-25 parts of hydroxyl microspheres, 5-15 parts of plasticizer, 0.1-5 parts of defoamer, and 0.01-3 parts of catalyst; the hydroxyl microspheres are microspheres with hydroxyl groups on the surface and chemical root inhibitors wrapped inside.

[0009] In a preferred embodiment, the novel root penetration resistant waterproof material is composed of the following components: 45-55 parts of polyether, 25-35 parts of isocyanate, 12-20 parts of hydroxyl microspheres, 8-12 parts of plasticizer, 0.5-3 parts of defoamer, and 0.1-1 parts of catalyst.

[0010] In a specific embodiment, the isocyanate comprises at least one aliphatic isocyanate or a derivative thereof, preferably, the aliphatic isocyanate is selected from hexamethylene diisocyanate and / or trimethyl-1,6-hexamethylene diisocyanate.

[0011] In a specific embodiment, the isocyanate comprises at least one alicyclic isocyanate or a derivative thereof. Preferably, the alicyclic isocyanate is selected from isophorone diisocyanate and / or dicyclohexylmethane diisocyanate.

[0012] In a specific embodiment, the chemical root inhibitor encapsulated inside the hydroxyl microspheres is a phenoxycarboxylic acid ester derivative, preferably one or a mixture of (R)-2-(4-chloro-2-methylphenoxy) propionic acid monoester compounds or (R)-2-(4-chloro-2-methylphenoxy) propionic acid diester compounds; more preferably (R) 2-(4-chloro-2-methylphenoxy) propionic acid n-octyl ester.

[0013] In a specific embodiment, the plasticizer is selected from any one of diisononyl cyclohexane-1,2-dicarboxylate (DINCH), 2,2,4-trimethyl-1,3-pentanediol diisobutyrate (TXIB), propylene carbonate (PC), dioctyl phthalate (DOP), and dioctyl terephthalate (DOTP).

[0014] In a specific embodiment, the defoamer is selected from at least any one of a mineral oil defoamer, a silicone defoamer, and a polyether defoamer; preferably a silicone defoamer, and more preferably a fluorosilicone defoamer.

[0015] In a specific embodiment, the catalyst is selected from one or both of tertiary amine compounds and organic metal compounds.

[0016] In a specific embodiment, the polyether includes amino-terminated polyether and hydroxyl-terminated polyether, and one or a mixture of trifunctional polyether and difunctional polyether of hydroxyl-terminated polyether.

[0017] In a specific embodiment, the hydroxy microspheres are prepared by the following steps:

[0018] Under a nitrogen atmosphere, deionized water, sodium persulfate, chemical root inhibitor, styrene, methacrylic acid, 2-hydroxyethyl methacrylate, and sodium dodecyl sulfate were weighed and added to a polymerization container. After reacting for a period of time, ammonia water and tert-butyl hydroperoxide were added to react and kept warm to obtain hydroxyl microspheres.

[0019] In a preferred embodiment, the hydroxy microspheres are prepared by the following steps: under a nitrogen atmosphere, 55-75% deionized water, 0.5-1% sodium persulfate, 10-18% chemical root inhibitor, 8-12% styrene, 1-5% methacrylic acid, 1.5-3% 2-hydroxyethyl methacrylate, and 0.2-0.6% sodium dodecyl sulfate are weighed and added into a polymerization container to react for 1-3 hours, and then 2% ammonia water with a content of 25-28% and 0.1-0.5% tert-butyl hydroperoxide with a content of 10% are added to react, and the reaction is kept warm for 20-40 minutes to obtain hydroxy microspheres.

[0020] In another aspect of the present invention, the production process of the aforementioned novel root penetration resistant waterproof material comprises the following steps:

[0021] 1) Preparation of hydroxyl microspheres:

[0022] 2) uniformly mixing the polyether, hydroxyl microspheres, plasticizer and defoamer to form component A;

[0023] 3) uniformly mixing isocyanate and catalyst to form component B;

[0024] 4) Component A and component B are uniformly mixed and reacted at 70-90° C. to obtain a novel root-penetration-resistant waterproof material.

[0025] Compared with the prior art, the present invention has at least the following beneficial effects:

[0026] The novel root penetration resistant waterproof material of the present invention comprises hydroxyl microspheres as a filler component. Meanwhile, the surface of the hydroxyl microspheres has hydroxyl groups which can react with isocyanate components, thereby achieving molecular-level dispersion of the hydroxyl microspheres in the polyurethane system, and effectively enhancing the overall mechanical properties of the waterproof material. In addition, the interior of the hydroxyl microspheres is also wrapped with chemical root inhibitors. After the roots or other external factors pierce the hydroxyl microspheres, the chemical root inhibitors can further prevent the growth of the roots, thereby extending the root penetration resistance period of the waterproof material, making its root penetration resistance more reliable and durable. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0028] The novel root penetration resistant waterproof material of the present invention is composed of the following components: 40-60 parts of polyether, 20-40 parts of isocyanate, 10-25 parts of hydroxyl microspheres, 5-15 parts of plasticizer, 0.1-5 parts of defoamer and 0.01-3 parts of catalyst; wherein the hydroxyl microspheres are microspheres with hydroxyl groups on the surface and chemical root inhibitors wrapped inside.

[0029] Specifically, the hydroxyl microspheres can be prepared by the following steps: under a nitrogen atmosphere, 55-75% deionized water, 0.5-1% sodium persulfate, 10-18% chemical root inhibitor, 8-12% styrene, 1-5% methacrylic acid, 1.5-3% 2-hydroxyethyl methacrylate, and 0.2-0.6% sodium dodecyl sulfate are weighed and added into a polymerization container for reaction for 1-3 hours, and then 2% ammonia water with a content of 25-28% and 0.1-0.5% tert-butyl hydroperoxide with a content of 10% are added for reaction, and the mixture is kept warm for 20-40 minutes to obtain hydroxyl microspheres.

[0030] The polyether includes amino-terminated polyether and hydroxyl-terminated polyether, a trifunctional polyether and a difunctional polyether of the hydroxyl-terminated polyether, or a mixture of the two. The amount of the polyether added is 40-60 parts, for example, including but not limited to 40 parts, 42 parts, 45 parts, 48 ​​parts, 50 parts, 53 parts, 55 parts, 56 parts, 58 parts, 60 parts, preferably 45-55 parts.

[0031] In the present invention, the isocyanate may be selected from commonly used isocyanate compounds, examples of which include but are not limited to toluene diisocyanate (TDI), isophorone diisocyanate (IPDI), dicyclohexylmethane diisocyanate (H12MDI), hexamethylene diisocyanate (HDI), methylcyclohexyl diisocyanate (HTDI), naphthalene diisocyanate (NDI), 1,3-dimethylisocyanate cyclohexane (H6XDI), and isocyanate derivatives such as prepolymers, dimers, trimers, and polymers of the above isocyanates. Such isocyanate compounds may be used alone or in combination.

[0032] As a preferred technical solution of the present invention, the isocyanate comprises at least one aliphatic isocyanate or its derivatives. The aliphatic isocyanate is preferably hexamethylene diisocyanate (HDI) and / or trimethyl-1,6-hexamethylene diisocyanate (TMHDI). Examples of the aliphatic isocyanate derivatives include but are not limited to prepolymers, dimers, trimers, polymers, etc. of aliphatic isocyanates.

[0033] As a preferred technical solution of the present invention, the isocyanate comprises at least one alicyclic isocyanate or a derivative thereof. The alicyclic isocyanate is one or more of isophorone diisocyanate (IPDI), dicyclohexylmethane diisocyanate (H12MDI), methylcyclohexyl diisocyanate (HTDI), 1,3-dimethylisocyanate cyclohexane (H6XDI), 1,4-cyclohexane diisocyanate (CHDI), preferably isophorone diisocyanate (IPDI) and / or dicyclohexylmethane diisocyanate (H12MDI). Examples of the alicyclic isocyanate derivatives include but are not limited to prepolymers, dimers, trimers, polymers, etc. of alicyclic isocyanates.

[0034] In the present invention, the amount of isocyanate added is 20-40 parts, for example including but not limited to 20 parts, 22 parts, 24 parts, 25 parts, 26 parts, 28 parts, 30 parts, 32 parts, 34 parts, 35 parts, 36 parts, 38 parts, 40 parts, preferably 25-35 parts.

[0035] In the present invention, the addition amount of hydroxyl microspheres is 10-25 parts, for example including but not limited to 10 parts, 11 parts, 12 parts, 13 parts, 14 parts, 15 parts, 16 parts, 17 parts, 18 parts, 19 parts, 20 parts, 21 parts, 22 parts, 23 parts, 24 parts, 25 parts, preferably 12-20 parts.

[0036] In the present invention, the plasticizer is selected from any one of cyclohexane-1,2-diisononyl dicarboxylate (DINCH), 2,2,4-trimethyl-1,3-pentanediol diisobutyrate (TXIB), propylene carbonate (PC), dioctyl phthalate (DOP), and dioctyl terephthalate (DOTP). The addition of plasticizer can adjust the viscosity of the system on the one hand, and on the other hand, it is also conducive to improving the compatibility of the system. The addition amount of plasticizer is 5-15 parts, for example, including but not limited to 5 parts, 5.5 parts, 6 parts, 6.5 parts, 7 parts, 7.5 parts, 8 parts, 8.5 parts, 9 parts, 9.5 parts, 10 parts, 11 parts, 12 parts, 13 parts, 14 parts, 15 parts, preferably 8-12 parts.

[0037] In the present invention, the defoamer is selected from at least one of mineral oil defoamers, silicone defoamers, and polyether defoamers; preferably, it is a silicone defoamer, and more preferably a fluorosilicone defoamer. The addition of the defoamer can effectively eliminate the bubbles generated in the system, making the waterproof coating more compact, and effectively ensuring the bonding strength of the waterproof coating. The amount of the defoamer added is, for example, 0.1-5 parts, for example, including but not limited to 0.1 parts, 0.2 parts, 0.3 parts, 0.4 parts, 0.5 parts, 0.6 parts, 0.7 parts, 0.8 parts, 0.9 parts, 1 parts, 1.5 parts, 2 parts, 2.5 parts, 3 parts, 3.5 parts, 4 parts, 4.5 parts, 5 parts, preferably 0.5-3 parts.

[0038] In the present invention, the catalyst is selected from one or both of tertiary amine compounds and organometallic compounds, such as common organotin catalysts. The amount of the catalyst added is 0.01-3 parts, for example, including but not limited to 0.01 parts, 0.025 parts, 0.05 parts, 0.08 parts, 0.1 parts, 0.2 parts, 0.3 parts, 0.4 parts, 0.5 parts, 0.6 parts, 0.7 parts, 0.8 parts, 0.9 parts, 1 parts, 1.5 parts, 2 parts, 2.5 parts, 3 parts, preferably 0.1-1 parts.

[0039] On the other hand, the production process of the novel root puncture resistant waterproof material of the present invention comprises the following steps:

[0040] 1) Preparation of hydroxyl microspheres:

[0041] 2) uniformly mixing the polyether, hydroxyl microspheres, plasticizer and defoamer to form component A;

[0042] 3) uniformly mixing isocyanate and catalyst to form component B;

[0043] 4) Component A and component B are uniformly mixed and reacted at 70-90° C. to obtain a novel root-penetration-resistant waterproof material.

[0044] The hydroxyl microspheres in step 1) are prepared by the following steps: under a nitrogen atmosphere, deionized water, sodium persulfate, chemical root inhibitor, styrene, methacrylic acid, 2-hydroxyethyl methacrylate, and sodium dodecyl sulfate are weighed and added into a polymerization container, and after reacting for a period of time, ammonia water and tert-butyl hydroperoxide are added to react, and the mixture is kept warm to obtain hydroxyl microspheres.

[0045] In a preferred embodiment, the hydroxy microspheres are prepared by the following steps: under a nitrogen atmosphere, 55-75% deionized water, 0.5-1% sodium persulfate, 10-18% chemical root inhibitor, 8-12% styrene, 1-5% methacrylic acid, 1.5-3% 2-hydroxyethyl methacrylate, and 0.2-0.6% sodium dodecyl sulfate are weighed and added to a polymerization container for reaction for 1-3 hours, and then 2% ammonia water with a content of 25-28% and 0.1-0.5% tert-butyl hydroperoxide with a content of 10% are added for reaction, and the reaction is kept warm for 20-40 minutes to obtain hydroxy microspheres.

[0046] The present invention is further explained below by more specific examples, but does not constitute any limitation.

[0047] Unless otherwise specified, the main raw materials of the examples and comparative examples of the present invention can be purchased on the market.

[0048] Hexamethylene diisocyanate, WANNATE HDI, Wanhua Chemical;

[0049] Plasticizer 2,2,4-trimethyl-1,3-pentanediol diisobutyrate, Aladdin;

[0050] Defoamer: BYK-065, BYK Chemical.

[0051] Preparation Example Preparation of Hydroxyl Microspheres Containing Chemical Root Inhibitor

[0052] Under a nitrogen atmosphere, 66 g of deionized water, 1 g of sodium persulfate, 15 g of chemical root inhibitor (R) 2-(4-chloro-2-methylphenoxy) propionic acid n-octyl ester, 10 g of styrene, 3 g% methacrylic acid, 2 g of 2-hydroxyethyl methacrylate, and 0.5 g of sodium dodecyl sulfate were weighed and added to a polymerization container and reacted for 2 hours. Then, 2 g of 25% ammonia water and 0.5 g of 10% tert-butyl hydroperoxide were added to react and kept warm for 30 minutes to obtain hydroxyl microspheres.

[0053] Example 1

[0054] 1) 40 g of amino-terminated polyether (D2000), 12 g of hydroxyl microspheres, 6 g of plasticizer, and 0.15 g of defoamer were uniformly mixed to form component A;

[0055] 2) 20 g HDI and 0.01 g dibutyltin dilaurate were uniformly mixed to form component B;

[0056] 3) Component A and component B are uniformly mixed, reacted at 90° C. to obtain a new root penetration resistant waterproof material, and the performance is tested.

[0057] Example 2

[0058] 1) 46 g of amino-terminated polyether (D2000), 15 g of hydroxyl microspheres, 8 g of plasticizer, and 0.5 g of defoamer were uniformly mixed to form component A;

[0059] 2) 25 g HDI and 0.1 g dibutyltin dilaurate were uniformly mixed to form component B;

[0060] 3) Component A and component B are uniformly mixed, reacted at 90° C. to obtain a new root penetration resistant waterproof material, and the performance is tested.

[0061] Example 3

[0062] 1) 50 g of amino-terminated polyether (D2000), 20 g of hydroxyl microspheres, 12 g of plasticizer, and 3 g of defoamer were uniformly mixed to form component A;

[0063] 2) 35 g HDI and 0.8 g dibutyltin dilaurate were uniformly mixed to form component B;

[0064] 3) Component A and component B are uniformly mixed, reacted at 90° C. to obtain a new root penetration resistant waterproof material, and the performance is tested.

[0065] Example 4

[0066] 1) 60 g of amino-terminated polyether (D2000), 25 g of hydroxyl microspheres, 15 g of plasticizer, and 5 g of defoamer were uniformly mixed to form component A;

[0067] 2) 40 g HDI and 3 g dibutyltin dilaurate were uniformly mixed to form component B;

[0068] 3) Component A and component B are uniformly mixed, reacted at 90° C. to obtain a new root penetration resistant waterproof material, and the performance is tested.

[0069] Comparative Example 1

[0070] Compared with Example 3, only the hydroxyl microspheres were not added, and other conditions were exactly the same, to obtain a root penetration resistant waterproof material, and perform a performance test.

[0071] Comparative Example 2

[0072] Compared with Example 3, the hydroxy microspheres were replaced with a corresponding amount of chemical root inhibitor (R) 2-(4-chloro-2-methylphenoxy) propionate, and other conditions were exactly the same to obtain a root penetration resistant waterproof material, and the performance was tested.

[0073] Comparative Example 3

[0074] 1) Under nitrogen atmosphere, 81 g of deionized water, 1 g of sodium persulfate, 10 g of styrene, 3 g% methacrylic acid, 2 g of 2-hydroxyethyl methacrylate, and 0.5 g of sodium dodecyl sulfate were weighed and added to a polymerization container and reacted for 2 h. Then, 2 g of 25% ammonia water and 0.5 g of 10% tert-butyl hydroperoxide were added and reacted. The reaction was kept warm for 30 min to obtain hydroxyl microspheres without chemical root inhibitors.

[0075] 2) 50 g of amino-terminated polyether (D2000), 20 g of the hydroxyl microspheres prepared in step 1), 12 g of a plasticizer, and 3 g of a defoamer were uniformly mixed to form component A;

[0076] 3) 35 g HDI and 0.8 g dibutyltin dilaurate were uniformly mixed to form component B;

[0077] 4) Component A and component B are uniformly mixed, reacted at 90° C. to obtain a new root penetration resistant waterproof material, and the performance is tested.

[0078] The waterproof materials of the embodiments and comparative examples were tested according to the national standard GB / T 19250-2013, and the root penetration resistance rapid plant test was carried out with reference to Appendix A of JC / T1075-2008. The test results are shown in the table below.

[0079]

[0080] It can be seen from the performance test data in the above table that the novel root penetration resistant waterproof material of the present invention has excellent mechanical properties and a root penetration resistant effect that is more reliable and durable than traditional physical additions through the design and matching of components such as polyether, isocyanate, hydroxyl microspheres with hydroxyl groups on the surface and chemical root blocking agents wrapped inside, and is suitable for planted roofs in various environments. The experiment also found that although the waterproof material of Comparative Example 2 passed the chemical root blocking effect test, it was not as reliable and durable as Example 3.

[0081] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A new type of root penetration resistant waterproof material, characterized in that: The invention is composed of the following components: 40-60 parts by weight of polyether, 20-40 parts by weight of isocyanate, 10-25 parts by weight of hydroxyl microspheres, 5-15 parts by weight of plasticizer, 0.1-5 parts by weight of defoamer, and 0.01-3 parts by weight of catalyst; the hydroxyl microspheres are microspheres having hydroxyl groups on the surface and containing chemical root inhibitors; The hydroxyl microspheres are prepared by the following steps: Under a nitrogen atmosphere, deionized water, sodium persulfate, chemical root inhibitor, styrene, methacrylic acid, 2-hydroxyethyl methacrylate, and sodium dodecyl sulfate were weighed and added to a polymerization container. After reacting for a period of time, ammonia water and tert-butyl hydroperoxide were added to react and kept warm to obtain hydroxyl microspheres.

2. The new root penetration resistant waterproof material according to claim 1 is characterized in that: The invention is composed of the following components: 45-55 parts by weight of polyether, 25-35 parts by weight of isocyanate, 12-20 parts by weight of hydroxy microspheres, 8-12 parts by weight of plasticizer, 0.5-3 parts by weight of defoamer and 0.1-1 parts by weight of catalyst.

3. The new root penetration resistant waterproof material according to claim 1 or 2, characterized in that: The isocyanate comprises at least one aliphatic isocyanate or a derivative thereof.

4. The new root puncture resistant waterproof material according to claim 3 is characterized in that: The aliphatic isocyanate is selected from hexamethylene diisocyanate and / or trimethyl-1,6-hexamethylene diisocyanate.

5. The novel root penetration resistant waterproof material according to claim 1 or 2, characterized in that: The isocyanate comprises at least one alicyclic isocyanate or a derivative thereof.

6. The novel root penetration resistant waterproof material according to claim 5 is characterized in that: The alicyclic isocyanate is selected from isophorone diisocyanate and / or dicyclohexylmethane diisocyanate.

7. The novel root penetration resistant waterproof material according to claim 1 or 2, characterized in that: The chemical root inhibitor wrapped inside the hydroxy microspheres is a phenoxycarboxylic acid ester derivative.

8. The novel root penetration resistant waterproof material according to claim 7 is characterized in that: The chemical root inhibitor wrapped inside the hydroxy microspheres is one of (R)-2-(4-chloro-2-methylphenoxy) propionic acid monoester compounds or (R)-2-(4-chloro-2-methylphenoxy) propionic acid diester compounds or a mixture of the two.

9. The novel root penetration resistant waterproof material according to claim 8, characterized in that: The chemical root inhibitor wrapped inside the hydroxy microspheres is (R) 2-(4-chloro-2-methylphenoxy) propionate n-octyl ester.

10. The novel root penetration resistant waterproof material according to claim 1 or 2, characterized in that: The plasticizer is selected from any one of diisononyl cyclohexane-1,2-dicarboxylate, 2,2,4-trimethyl-1,3-pentanediol diisobutyrate, dioctyl phthalate, and dioctyl terephthalate.

11. The novel root penetration resistant waterproof material according to claim 1 or 2, characterized in that: The defoamer is selected from at least any one of a mineral oil defoamer, a silicone defoamer, and a polyether defoamer.

12. The novel root penetration resistant waterproof material according to claim 11, characterized in that: The defoaming agent is a silicone defoaming agent.

13. The novel root penetration resistant waterproof material according to claim 12, characterized in that: The defoaming agent is a fluorosilicone defoaming agent.

14. The novel root penetration resistant waterproof material according to claim 1 or 2, characterized in that: The catalyst is selected from one or both of tertiary amine compounds and organic metal compounds.

15. The production process of the novel root penetration resistant waterproof material according to any one of claims 1 to 14, characterized in that: The steps include: 1) Preparation of hydroxyl microspheres: 2) Evenly mix the polyether, hydroxyl microspheres, plasticizer and defoamer to form component A; 3) Evenly mix isocyanate and catalyst to form component B; 4) Component A and component B are uniformly mixed and reacted at 70-90°C to obtain a new root penetration resistant waterproof material.

Images