| 单词 | PVA |
| 例句 | His fleece even had to be stiffened with PVA glue to stop it from catching fire. Sheep thrills as Shaun hits cinemas 2015-02-04T05:00:00Z PVA glue shrinks as it cures, so when you glue the end grain, the joint winds up with almost no glue and is weak. What to do when a DIY repair leads to a mishap with polyurethane glue 2018-12-27T05:00:00Z Scraps of newspaper appear roughly stuck together without consideration, smears of PVA glue adjoining mismatched shreds of yesterday's news. Young arts critics competition 2010: the winning entries 2010-10-20T22:00:00Z White or yellow glues, which are classified as polyvinyl acetates, or PVA glues, include the white glue used in classrooms and waterproof formulas such as Titebond III Ultimate Wood Glue. What to do when a DIY repair leads to a mishap with polyurethane glue 2018-12-27T05:00:00Z PVA also publishes a checklist for traveling with mobility impairments. Advice | Flying with an injury? You can get help at the airport. The petition calls on the EPA to remove the compound from its Safer Choice and Safer Chemical Ingredients lists until the tests are conducted and PVA is proved safe. Does the film around detergent pods really biodegrade? A debate is raging. 2022-11-15T05:00:00Z This was not the only adverse flight experience that a PVA member reported. It's not just United Airlines: Commercial air travel is cruel for those with disabilities 2021-11-12T05:00:00Z Pointing to the ICC study, PVA declared in a tweet Monday that "a people's vaccine is in everyone's interests." The rise of "vaccine nationalism": How rich nations could cost the global economy over $9 trillion 2021-02-04T05:00:00Z “PVA member vessel companies are not involved in overnight diving operations such as the Conception,” a statement said. Coast Guard rejected boat safety recommendations despite pleas from federal investigators, records show 2019-11-12T05:00:00Z Laboratory versions of PVA work better than those from the supermarket, he says, and the polymer, which is used in tablet coatings, is deemed non-toxic by regulatory agencies. Blood stem cells produced in vast quantities in the lab 2019-05-29T04:00:00Z Yoo added that she and others at the New York City-based company view the popular pods and newer laundry detergent sheets that use PVA as “arguably worse than straws.” Does the film around detergent pods really biodegrade? A debate is raging. 2022-11-15T05:00:00Z One PVA leader was "severely injured" after being dropped while getting transferred to an aisle chair so he could board; the error fractured his tail bone, eventually leading to skin breakdown and a bone infection. It's not just United Airlines: Commercial air travel is cruel for those with disabilities 2021-11-12T05:00:00Z “Through an aggressive legislative and advocacy program, PVA effectively represents the interests of the passenger vessel industry in our Nation’s Capital,” the group says on its website. Congress didn’t act after 1999 duck-boat tragedy. Now it must, experts say. 2018-07-30T04:00:00Z “The bottom fell out. We went into a drought. They turned their defense up a little bit and we started settling for poor shots,” PVA&M; coach Byron Smith said. Barefield leads Utah past Prairie View A&M 83-62 2017-11-11T05:00:00Z PVA has also been used to culture embryos and embryonic stem cells. Blood stem cells produced in vast quantities in the lab 2019-05-29T04:00:00Z PVA, which is also used in the textile industry, has been widely regarded as safe. Does the film around detergent pods really biodegrade? A debate is raging. 2022-11-15T05:00:00Z Martin Cade, warden of Portland Bird Observatory, said it looked like "hundreds of birds" were being washed up, covered in a "PVA glue-type" substance, while even more could be seen out at sea. Rescue for birds covered in 'wax' 2013-02-01T08:36:28Z To do that, it says, “PVA maintains close contact with key legislators and committees on Capitol Hill and in state legislatures to ensure that industry positions are adequately addressed.” Congress didn’t act after 1999 duck-boat tragedy. Now it must, experts say. 2018-07-30T04:00:00Z Those results could lead consumers to believe that a pod product using PVA film may “seem more eco-friendly and biodegradable than it actually is,” he added. Does the film around detergent pods really biodegrade? A debate is raging. 2022-11-15T05:00:00Z Fully biodegrading PVA requires the presence of the right species and concentration of microorganisms, which also have to be trained to break the compound down, Rolsky said. Does the film around detergent pods really biodegrade? A debate is raging. 2022-11-15T05:00:00Z The Environmental Working Group has also rated PVA as a low-hazard ingredient in personal care products. Does the film around detergent pods really biodegrade? A debate is raging. 2022-11-15T05:00:00Z While more research is needed on PVA’s potential effects on humans and the planet, the concern is that the film is “very similar to conventional plastics that we see on a regular basis,” Rolsky said. Does the film around detergent pods really biodegrade? A debate is raging. 2022-11-15T05:00:00Z But there’s one major difference, he said: PVA “just happens to be water soluble.” Does the film around detergent pods really biodegrade? A debate is raging. 2022-11-15T05:00:00Z He compared PVA’s ability to dissolve to pouring salt into water. Does the film around detergent pods really biodegrade? A debate is raging. 2022-11-15T05:00:00Z But evidence of the potential effects of PVA “are scarce,” said Magni, who co-authored a study that did not find toxic effects associated with the compound in fish embryos and a species of water flea. Does the film around detergent pods really biodegrade? A debate is raging. 2022-11-15T05:00:00Z What’s more, single-dose detergent pods that use PVA are often considered to be a more environmentally friendly alternative to traditional liquid products that come in plastic containers. Does the film around detergent pods really biodegrade? A debate is raging. 2022-11-15T05:00:00Z He added that environmental tests of PVA are “urgently needed.” Does the film around detergent pods really biodegrade? A debate is raging. 2022-11-15T05:00:00Z “Decades of study, including evaluations by the EPA, FDA, regulatory and certification bodies around the world, have proven the safety and sustainability of PVA,” Vander Laan said. Does the film around detergent pods really biodegrade? A debate is raging. 2022-11-15T05:00:00Z The petition urges the agency to require health and environmental safety tests for polyvinyl alcohol, also known as PVA or PVOH, which encases the pods. Does the film around detergent pods really biodegrade? A debate is raging. 2022-11-15T05:00:00Z “Indeed, a huge amount of PVA is annually produced, placed on the market and then used and released in the environment,” particularly in aquatic ecosystems. Does the film around detergent pods really biodegrade? A debate is raging. 2022-11-15T05:00:00Z Research touted by the American Cleaning Institute, or ACI, a trade group, suggests that at least 60 percent of PVA film biodegrades within 28 days and 100 percent of the film within 90 days. Does the film around detergent pods really biodegrade? A debate is raging. 2022-11-15T05:00:00Z Meanwhile, the ACI issued a lengthy statement that highlighted benefits of PVA film and supporting research findings. Does the film around detergent pods really biodegrade? A debate is raging. 2022-11-15T05:00:00Z “Because this chemistry has enabled these innovative laundry and automatic dishwashing product formats, it is extremely disappointing to learn about the misinformation that is being spread about PVA/PVOH,” the ACI statement said. Does the film around detergent pods really biodegrade? A debate is raging. 2022-11-15T05:00:00Z But Rolsky said that he and other experts are calling for more research: “PVA shouldn’t be vilified.” Does the film around detergent pods really biodegrade? A debate is raging. 2022-11-15T05:00:00Z |
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