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Non-halide thin film for rubber belt and preparation

A non-halogen and film technology, applied in the field of non-halogen film and its preparation, can solve the problems of inability to achieve tensile modulus strength, poor compatibility, poor heat resistance, etc., and achieve easy processing and dispersion, low cost, and increased polarity Effect

Inactive Publication Date: 2008-10-29
CHINA GENERAL PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Basically, SBS (styrene-butadiene-styrene block copolymer) has poor heat resistance and has the problem of easy cracking during processing; SEBS (Styrene Ethylbutylene Styrene block copolymer styrene-ethylbutylene-styrene Segment copolymer) cost is much higher than other plastic raw materials; moreover, PP and polystyrene elastomers also have poor compatibility when processing tape machines, and high-shear mixing equipment is required to achieve better dispersion effects
The 50% tensile modulus strength (50% Tensile Modulus) is particularly important in tape applications. Using PP and polystyrene elastomers cannot achieve 50% tensile modulus strength comparable to PVC

Method used

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  • Non-halide thin film for rubber belt and preparation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment ( 1

[0035] The design formula is as follows in Table 1:

[0036] raw material name

parts by weight phr

Remark

polypropylene copolymer

40

Fu poly / Fu polyene ST861 / MI=7.0

Polypropylene elastomer

60

Exxson / VIS TAMAXX

VM1100 / MI=1.3

Maleic anhydride grafted polypropylene

10

Dupont / FUSABOND

MD511 / MI=25.0

polyethylene wax

0.3

lubricant

vinyl dioctadecamide

0.3

lubricant

Compound Antioxidant

0.2

Ciba / Irganox HP 2215

[0037] Table 1

[0038] After the raw materials are weighed according to the formula in Table 1, they are kneaded and processed in the laboratory with a two roll mil. The temperature of the rolls is: 165°C for the front wheel and 160°C for the rear wheel. The kneading time: 10 minutes. Finally, adjust the gap between the two wheels to make the rubber material roll to the required thickness, and finally...

Embodiment ( 2

[0045] The design formula is as follows in Table 3:

[0046] raw material name

parts by weight phr

Remark

polypropylene copolymer

45

Fu poly / Fu polyene ST861 / MI=7.0

Polypropylene elastomer

55

Exxson / VISTAMAXX

VM1100 / MI=1.3

Maleic anhydride grafted polypropylene

10

Dupont / FUSABOND

MD511 / MI=25.0

calcium carbonate

30

filler

stearic acid

0.3

lubricant

[0047] vinyl dioctadecamide

0.3

lubricant

Compound Antioxidant

0.25

Ciba / Irganox HP 2215

black masterbatch

2

PP base

[0048] table 3

[0049] On-line trial production on the tape machine. After weighing the raw materials according to the formula in Table 3, put them into the kneading / mixing function of the 10,000-horsepower machine (banbury mixer) for gelation and aging. The operation time is 90 secon...

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Abstract

The invention provides a non-halogen film used for adhesive tapes and the preparation thereof. The film is made from 10-80 phr (parts per hundred of resin) of polypropylene polymer, 90-20 phr of thermoplastic polyolefine elastomer, 3-20 phr of maleic anhydride-grafted polyolefine, 0.1-5 phr of lubricant, 0.1-5 phr of antioxidant, 0-200 phr of bulking agent, 0-15 phr of pigment and 0-20 phr of flame retardant. The preparation of the non-halogen is as follows: subjecting a batch mixture to a mixing / mulling device, a film forming device, and manufacturing the film with a thickness of 0.05-0.30 mm. The film is a recoverable and environment-friendly material free of halogen elements, has similar property to the polyvinyl chloride (PVC) film, and is used as substitute for the conventional film for PVC adhesive tapes.

Description

technical field [0001] The invention relates to a non-halogen film for adhesive tape and its preparation. The film is a recyclable and environmentally friendly material that does not contain halogen; in terms of the characteristics of use, such as: elasticity, coating feel, tensile strength, ease of use, etc. It is torn off and has a neat section, and has retractable tight wrapping properties after stretching... etc. It has similar characteristics to polyvinyl chloride (PVC) films, and can replace PVC films used in packaging and electrical insulating tapes. Background technique [0002] Since polyvinyl chloride (PVC) has very good processability and physical properties, most traditional electrical insulating tapes and the back film of many packaging tapes use soft polyvinyl chloride (SPVC), but because PVC itself contains halogen, And soft polyvinyl chloride needs to add plasticizers (such as phthalates) and stabilizers containing heavy metals. When PVC is used up and landfi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/00C08J5/18C09J7/02C08K3/26C08L23/12C08L51/06
Inventor 吴协金李育奇詹家亮陈枝炎
Owner CHINA GENERAL PLASTICS
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