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Elastic PVC transparent hose and preparation method thereof

A PVC resin and transparent technology, applied in the field of PVC hoses, can solve the problems of environmental pollution, reduced service life, poor thermal and light stability, etc., and achieve the effects of controlling migration, improving transparency, and good dispersion effect

Inactive Publication Date: 2021-05-28
台州市天达源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the presence of chlorine atoms in polyvinyl chloride, the polarity is large and the intermolecular force is strong, so its toughness is poor, especially at low temperatures, which limits its application.
In addition, the thermal and light stability of polyvinyl chloride is poor. Under the condition of temperature of 100 ℃ and long-term light, it is easy to decompose hydrogen chloride, and further autocatalyzes the decomposition, so that the product changes color and the physical and mechanical properties will also decline accordingly.
[0003] Polyvinyl chloride resin widely used in the industrial field has excellent physical and chemical properties, but the plasticizing effect of PVC is unstable, and small-molecule plasticizers are prone to dissolution and migration, which not only pollutes the environment, but also accelerates product performance degradation, reducing service life

Method used

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  • Elastic PVC transparent hose and preparation method thereof
  • Elastic PVC transparent hose and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021]An elastic PVC transparent hose consists of 72% of the following weight percent: PVC resin, 3.5%, chlorinated polyethylene rubber, 4.5% chlorinated polyethylene, 12% plasticizer, 1.5% auxiliary plasticizer, change 0.7% calcium carbonate, 1.5% of the heat stabilizer, 1.1% peroxide crosslinking agent and resilient balance.

[0022]The PVC resin is a low molecular weight polyvinyl chloride resin having a weight average molecular weight of 1.37,000.

[0023]The plasticizer is a dodiphenylene terephthalate.

[0024]The auxiliary plasticizer is NPG and silica copolymerization modified PETG polyester.

[0025]The modified nano calcium carbonate is a borate-modified nanocalbonate powder.

[0026]The thermostat is a composite calcium-zinc stabilizer.

[0027]The modifier is a PVC impact modifier ACM-24.

[0028]Method for preparing an elastic PVC transparent hose, including the following steps:

[0029]A. Mix the raw material is mixed in a high speed mixer;

[0030]B, add a mixed material to the mesh, the penetr...

Embodiment 2

[0035]An elastic PVC transparent hose consists of 75% of the following weight percent: PVC resin 75%, chlorinated polyethylene rubber 2%, chlorinated polyethylene, 8% plasticizer, 2% auxiliary plasticizer, change 0.5% calcium carbonate, 2% of heat stabilizers, 1.2% peroxide crosslinking agent and residual agents.

[0036]The PVC resin is a low molecular weight polyvinyl chloride resin having a weight average molecular weight of 155,000.

[0037]The plasticizer is a dodiphenylene terephthalate.

[0038]The auxiliary plasticizer is NPG and silica copolymerization modified PETG polyester.

[0039]The modified nano calcium carbonate is a borate-modified nanocalbonate powder.

[0040]The thermostat is a composite calcium-zinc stabilizer.

[0041]The modifier is a PVC impact modifier ACM-24.

[0042]Method for preparing an elastic PVC transparent hose, including the following steps:

[0043]A. Mix the raw material is mixed in a high speed mixer;

[0044]B, add a mixed material to the mesh, the penetrating temperatu...

Embodiment 3

[0049]An elastic PVC transparent hose consists of a weight percentage of ingredients: PVC resin 68%, chlorinated polyethylene rubber 5%, 3% chlorinated polyethylene, 15% plasticizer, 1% auxiliary plasticizer, change Rano-calcium carbonate is 0.8%, 1% of heat stabilizers, 0.8% peroxide crosslinking agent and modifier margin.

[0050]The PVC resin is a low molecular weight polyvinyl chloride resin having a weight average molecular weight of 128,000.

[0051]The plasticizer is a dodiphenylene terephthalate.

[0052]The auxiliary plasticizer is NPG and silica copolymerization modified PETG polyester.

[0053]The modified nano calcium carbonate is a borate-modified nanocalbonate powder.

[0054]The thermostat is a composite calcium-zinc stabilizer.

[0055]The modifier is a PVC impact modifier ACM-24.

[0056]Method for preparing an elastic PVC transparent hose, including the following steps:

[0057]A. Mix the raw material is mixed in a high speed mixer;

[0058]B, add a mixed material to the mesh, the penetratio...

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Abstract

The invention discloses an elastic PVC transparent hose. PVC is modified by adding chlorinated polyethylene rubber and chlorinated polyethylene, so that the PVC material has better elasticity. An auxiliary plasticizer is added, so that the migration phenomenon of a micromolecular plasticizer can be effectively controlled, and the transparency of the hose can be increased. Compared with the traditional nano calcium carbonate, the modified nano calcium carbonate not only has a better dispersion effect, but also is beneficial to increasing the transparency of the hose. NPG and silicon dioxide copolymerization modified PETG polyester are simultaneously added to serve as an auxiliary plasticizer, the auxiliary plasticizer and boric acid ester modified nano calcium carbonate powder also have a synergistic effect, and the transparency of the hose can be further improved. According to the prepared elastic PVC transparent hose, the Shore hardness can reach 88-89D, the lowest low-temperature brittle temperature can reach -55 DEG C, the light transmittance can reach 95% or above, and the hose is high in elasticity and transparency.

Description

Technical field[0001]The present invention relates to the field of PVC hoses, and more particularly to an elastic PVC transparent hose and a preparation method thereof.Background technique[0002]PVC (PVC) is the world's second largest general resin, which is second only to polyethylene, is very large in my country. Due to the low price, good mechanical properties, good weather resistance, good electrical insulation and excellent geometric stability, and polyvinyl chloride are widely used in medical fields. However, due to the presence of chlorine atoms in polyvinyl chloride, the polarity is large, and the molecular sense is strong, and the toughness is poor, it is more apparent from low temperature, thereby limiting its application. Further, the heat and light stability of the polyvinyl chloride is poor, and in the case of a temperature of 100 ° C and long-term light, hydrogen chloride is easily decomposed, and the catalytic decomposition is further automatically catalyzed, so that t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L23/28C08L67/02C08K13/06C08K9/04C08K3/26C08K5/12
CPCC08L27/06C08L2201/10C08L2203/18C08L2205/035C08L2205/025C08K2201/011C08K2003/265
Inventor 张曙力张娟何河冰何海富
Owner 台州市天达源科技有限公司