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Nano high-air-tightness compressive film and preparation method thereof

A high-air-tight, pressure-resistant film technology, applied in the field of pressure-resistant films, can solve the problems of air-tightness and pressure-resistant performance limitations, inability to use pressure-resistant equipment, inconvenient to carry, etc., to improve air-tightness and excellent physical properties. Mechanical properties, the effect of good compressive strength

Active Publication Date: 2012-07-11
FUJIAN SIJIA ENVIRONMENTAL PROTECTION MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, high-strength compression equipment such as jacks are generally made of metal materials, which are expensive and require mechanical equipment to go through multiple complicated processes; when the volume of the compression equipment is large, the product is extremely heavy and difficult to carry. inconvenient
At present, various film products produced with PVC polyvinyl chloride resin as raw materials, although the products are light in weight and easy to carry, due to the limitations of air tightness and compression resistance, the current PVC film products cannot be used for compression resistance. equipment

Method used

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Examples

Experimental program
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Effect test

preparation example Construction

[0042] The preparation method of the nano high airtight anti-pressure film described in the present invention comprises the following steps:

[0043] Step 1. Calendering process: Add PVC polyvinyl chloride resin and modified nano-kaolin to a high-speed mixer and stir evenly, then add DOP dioctyl phthalate, DBP dibutyl phthalate, DCHP dibutyl phthalate Cyclohexyl ester, stabilizer, calcium carbonate and other additives are evenly mixed and then added to a calendering machine for calendering to obtain an embryonic film;

[0044] Step 2. Bonding process: use the pretreated polyester mesh as the middle layer, and set up a layer of embryo film prepared in step 1 on the upper and lower layers. Send the three-layer film from the film sending rack to the laminating machine. After fully preheating at 140-150°C, the three layers of membranes are pasted together in the order of the upper embryonic membrane, polyester mesh and lower embryonic membrane. The upper embryonic membrane is in c...

Embodiment 1

[0047] Components and weights thereof of the nano high airtight anti-pressure film are:

[0048] PVC polyvinyl chloride resin 100 kg;

[0049] DOP dioctyl phthalate 10 kg;

[0050] DBP dibutyl phthalate 10 kg;

[0051] DCHP dicyclohexyl phthalate 10 kg;

[0052] Barium, zinc composite stabilizer 3 kg;

[0053] Modified nano kaolin 5 kg;

[0054] Calcium carbonate 5 kg;

[0055] Pigment 1 kg.

[0056] The preparation method of the nano high airtight anti-pressure film described in the present invention comprises the following steps:

[0057] Step 1. Calendering process: Add PVC polyvinyl chloride resin and modified nano-kaolin to a high-speed mixer and stir evenly, then add DOP dioctyl phthalate, DBP dibutyl phthalate, DCHP dibutyl phthalate Cyclohexyl ester, stabilizer, calcium carbonate and other additives were mixed evenly and added to a calender molding machine for calendering to obtain an embryo film; the calendering temperature was 170°C, and the pulling speed was ...

Embodiment 2

[0066] Components and weights thereof of the nano high airtight anti-pressure film are:

[0067] PVC polyvinyl chloride resin 100 kg;

[0068] DOP dioctyl phthalate 25 kg;

[0069] DBP dibutyl phthalate 25 kg;

[0070] DCHP dicyclohexyl phthalate 15 kg;

[0071] Tin methyl mercaptide heat stabilizer 5 kg;

[0072] Modified nano kaolin 15 kg;

[0073] Calcium carbonate 15 kg;

[0074] Other additives 3 kg.

[0075] The preparation method of the nano high airtight anti-pressure film described in the present invention comprises the following steps:

[0076] Step 1. Calendering process: Add PVC polyvinyl chloride resin and modified nano-kaolin to a high-speed mixer and stir evenly, then add DOP dioctyl phthalate, DBP dibutyl phthalate, DCHP dibutyl phthalate Cyclohexyl ester, stabilizer, calcium carbonate and other additives were mixed evenly and added to a calender molding machine for calendering to obtain an embryo film; the calendering temperature was 180°C, and the pull...

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Abstract

The invention discloses a nanometer high-air-tightness compressive film, which consists of the following components: PVC (Polyvinyl Chloride) resin, DOP (Dioctyl Phthalate), DBP (Dibutyl Phthalate), DCHP (Dicyclohexyl Phthalate), a stabilizer, modified nanometer kaolin, calcium carbonate and other aids. The nanometer high-air-tightness compressive film is prepared by performing a calendaring process, an attaching process, a cooling step and a coiling step on each component. The nanometer high-air-tightness compressive film has the advantages that: a DOP-DBP-DCHP compound plasticizer is adopted, so that PVC resin is fully plasticized; the DCHP plays a role in plasticizing, and contributes to making a PVC film structure denser and enhancing the air tightness of the compressive film; the air tightness of the compressive is further improved by adopting the modified nanometer kaolin, and superior physical and mechanical performance of the compressive film is achieved simultaneously; and high-strength industrial polyester screen cloth is taken as an intermediate reinforcing material, so that compressive film provided by the invention has extremely high compressive strength.

Description

technical field [0001] The invention relates to an anti-pressure film, in particular to a nanometer high-air-tight anti-pressure film and a preparation method thereof. Background technique [0002] At present, high-strength anti-compression equipment such as jacks are generally made of metal materials, which are expensive and require mechanical equipment to go through multiple complicated processes; when the anti-compression equipment is large, the product is extremely heavy and difficult to carry inconvenient. At present, various film products produced with PVC polyvinyl chloride resin as raw materials, although the products are light in weight and easy to carry, due to the limitations of air tightness and compression resistance, the current PVC film products cannot be used for compression resistance. in the device. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the object of the present invention is to provide a nano high air...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08K5/12C08K3/34C08K3/26C08J5/18C08J5/12
Inventor 林生雄张宏旺黄万能蒋石生
Owner FUJIAN SIJIA ENVIRONMENTAL PROTECTION MATERIAL TECH
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